A waste refrigerator roughly how much plastic and iron can be recycled

EPS foam is a thermoplastic material, each cubic meter volume contains 3-6 million independent airtight bubbles, the volume of air contained in more than 98%, due to the thermal conductivity of the air is very small, and is enclosed in the foam and can not be convection, so the EPS is a heat insulation and thermal insulation performance is very good material. First, the definition of plastic plastic is a resin as the main component, molded into a certain shape at a certain temperature and pressure, and at room temperature can maintain the established shape of the polymer organic materials. Resin refers to the heat is usually transformed or melting range, transformed by external forces with mobility, solid or semi-solid or liquid organic polymers at room temperature, it is the most basic plastic, but also the most important component. Broadly speaking, in the plastics industry as the basic material of plastic any polymer can be called resin. Second, the classification of plastics plastic is not yet a precise classification, the general classification is as follows: 1. According to the physical and chemical properties of plastics thermoplastic plastics: in a specific temperature range can be repeatedly heated to soften and cool the hardening of plastic. Such as polyethylene plastic, polyvinyl chloride plastic. Thermosetting plastics: due to heat or other conditions can be cured into a non-melting insoluble material plastic. Such as phenolic plastics, epoxy plastics, etc. 2. According to the plastic with the selection of general-purpose plastics: - generally refers to the production of large, wide range of uses, good molding, inexpensive plastics. Such as polyethylene, polypropylene, polyvinyl chloride and so on. Engineering plastics: - generally refers to the ability to withstand certain external forces, and have good mechanical properties and dimensional stability, in high and low temperatures can still maintain its excellent performance, can be used as engineering structural parts of the plastic. Such as ABS, nylon, polyalum and so on. Specialty plastics: - generally refers to special features (such as heat-resistant, self-lubricating, etc.), applied to special requirements of the plastic. Such as fluorine plastic, silicone, etc. 3. According to the plastic molding method of molding plastic: for molding resin mixture. Such as general thermosetting plastics. Laminated plastics: refers to the resin-impregnated fiber fabrics, can be stacked, hot-pressing combined and become a whole material. Injection, Extrusion and Blow Molding Plastics: - Generally refers to resin mixes that can melt and flow at barrel temperatures and harden rapidly in the mold. Such as general thermoplastics. Casting plastics: can be in the case of no pressure or a little pressure, pouring in the mold can be hardened into a certain shape products of liquid resin mixture. Such as MC nylon. Reaction injection molding plastics: generally refers to the liquid raw materials, pressurized into the mold cavity, so that the reaction curing of the finished product. Such as polyurethane. 4. According to the plastic semi-products and products molding powder: also known as plastic powder, mainly from thermosetting resins (such as phenolic) and fillers and so on by the full mixing, pressing, crushing. Such as phenolic plastic powder. Reinforced plastics: with reinforcing materials and some mechanical properties than the original resin has a greater increase in a class of plastics. Foam: the whole of the plastic with countless microporous. Film: generally refers to the thickness of O.25 millimeters below the flat and soft plastic products. Third, the basic performance of plastics 1. lightweight, high specific strength. Plastic is light, the general density of plastic are in the 0.9 ~ 2.3 g / cm 3, only steel 1 / 8 ~ 1 / 4, aluminum 1/2 or so, and a variety of foam density is lower, about 0.01 ~ O.5 g / cm 3 between. Calculated according to the unit mass of the strength is called the specific strength, some reinforced plastics than the strength close to or even more than steel. For example, alloy steel, its tensile strength per unit mass of 160 MPa, while the glass fiber reinforced plastic can reach 170 ~ 400 MPa. 2. excellent electrical insulation properties. Almost all plastics have excellent electrical insulation properties, such as very small dielectric loss and excellent arc resistance, these properties are comparable to ceramics. 3. excellent chemical stability. General plastic chemicals such as acids and alkalis have good corrosion resistance, especially PTFE chemical resistance than gold, and even resistant to "aqua regia" and other highly corrosive electrolyte corrosion, known as the "plastic king".4. Friction reduction, good wear resistance. Most plastics have excellent friction reduction, wear resistance and self-lubricating properties. Many engineering plastics manufacturing friction parts is the use of these characteristics of plastics, wear-resistant plastics in the addition of certain solid lubricants and fillers, can reduce its coefficient of friction or to further improve its wear-resistant properties. 5. Transparency and protective properties. Most plastics can be used as transparent or semi-transparent products, including polystyrene and acrylate plastics as transparent as glass. Plexiglass chemical name for polymethyl methacrylate, can be used as aviation glass materials. Polyvinyl chloride, polyethylene, polypropylene and other plastic films have good light transmission and warmth, and are used in large quantities as agricultural films. Plastic has a variety of protective properties, so commonly used as protective clothing, such as plastic film, boxes, barrels, bottles, etc. 6. vibration damping, sound damping performance is excellent. Some plastics are flexible and rich in elasticity, when it is subjected to external frequent mechanical shock and vibration, internal viscous internal consumption, the mechanical energy into thermal energy, therefore, the project is used as a shock absorbing and sound damping materials. For example, bearings and teeth made of engineering plastics can reduce noise, and various kinds of foam are widely used as excellent vibration damping materials. The excellent performance of the above plastics, so that it has a wide range of uses in industrial and agricultural production and people's daily life; it has been from the past as a substitute for metal, glass, ceramics, wood and fibers, etc., and jumped to become indispensable materials for modern life and cutting-edge industry. However, plastics also have shortcomings. For example, heat resistance is poorer than metal and other materials, general plastic can only be used at temperatures below 100 ℃, a small number of 200 ℃ or so; the coefficient of thermal expansion of plastics is 3 to 10 times larger than the metal, susceptible to temperature changes that affect the stability of the size; in the role of the load, the plastic will be slow to produce viscous flow or deformation, that is, the phenomenon of creep; In addition, the plastic in the atmosphere, sunlight, long-term pressure or some quality In addition, plastic in the atmosphere, sunlight, long-term pressure or some quality role will occur under the aging, so that the performance deterioration and so on. These shortcomings of plastics more or less affect or limit its application. However, with the development of the plastics industry and plastic materials research work in-depth, these shortcomings are gradually overcome, excellent performance of novel plastics and a variety of plastic composite materials are emerging. Fourth, the use of plastic plastic has been widely used in agriculture, industry, construction, packaging, cutting-edge defense industry, as well as people's daily lives in various fields. Agriculture: a large number of plastics are used in the manufacture of mulch, seedling film, greenhouse film and irrigation pipes, fish nets, aquaculture floats and so on. Industry: electrical and electric industry widely use plastics to make insulating materials and encapsulation materials; in the machinery industry made of plastics transmission gears, bearings, axle tiles and many parts instead of metal products; in the chemical industry with plastics for pipelines, a variety of containers and other anticorrosive materials; in the construction industry for doors, windows, staircase handrails, floor tiles, ceilings, thermal and acoustic insulation boards, wallpaper, downpipes, and pitot tubes, Decorative panels and sanitary ware. In the defense industry and cutting-edge technology, whether it is conventional weapons, aircraft, ships, or rockets, missiles, satellites, spacecraft and atomic energy industry, plastics are indispensable materials. In people's daily life, the application of plastic is more extensive, such as the market sale of plastic sandals, slippers, raincoats, handbags, children's toys, toothbrushes, soap boxes, hot water bottle shells and so on. Currently in a variety of household appliances, such as televisions, recorders, electric fans, washing machines, refrigerators and so on have also gained wide application. Plastic as a new packaging material, has been widely used in the field of packaging, such as a variety of hollow containers, injection molded containers (crates, containers, barrels, etc.), packaging film, woven bags, corrugated boxes, Styrofoam, strapping rope and baling tape. Fifth, the history of the development of the plastics industry and the status quo as early as the 19th century, people have been the use of asphalt, rosin, amber, gum and other natural resins. 1868 will be the natural cellulose nitrate, camphor as a plasticizer made of the world's first plastic varieties, known as celluloid, and from then on began the history of the use of plastics by mankind. In 1909, the first synthetic plastic, phenolic plastic, appeared, and in 1920, a synthetic plastic, amino plastic (aniline formaldehyde plastic) was born. These two plastics at that time to promote the development of the electrical industry and instrument manufacturing industry played a positive role. To the 20th century, 20, 30s, appeared one after another alkyd resin, PVC, acrylate, polystyrene and polyamide and other plastics. From the 1940s to the present, with the development of science and technology and industry, the extensive development and utilization of petroleum resources, the rapid development of the plastics industry. Varieties of polyethylene, polypropylene, unsaturated polyester, fluoroplastics, epoxy resins, polyformaldehyde, polycarbonate, polyimide and so on. Basic knowledge of waste plastics Q&A 1, what is PPC plastic, how to recognize from the appearance? Reply: PPC belongs to the PP category, known as chlorinated polypropylene, used in the manufacture of daily necessities, electrical appliances, etc. 2, I am engaged in the crushing of waste plastics, ``Please ask what are the prices of waste plastics (2004-11-9)? Re: polypropylene (woven bag): 1200-1600 yuan / ton; polypropylene (tub bucket material): 2100-2600 yuan / ton; polyethylene (soft material): 2300-3300 yuan / ton; polyethylene (hard material): 2700-3800 yuan / ton; polyvinyl chloride: 2500-3100 yuan / ton; foam: 2000-3300 yuan / ton; polyester (mineral water bottles): 5000-5800 yuan / ton ): 5000-5800 yuan / ton; (Declaration: the data provided is for reference only, and please refer to the date of the offer) 3、What type of raw material is used to produce HDPE gas pipe and water supply pipe? Reply：The raw materials used to produce HDPE gas pipe and water supply pipe are PE80, PE1004, What kind of material is PPN? Reply：PPN is a kind of polypropylene. 5, now the EVA has the best elasticity which is produced? What grade? To domestic, and soft polyvinyl chloride for injection molding of what ah? Response: Domestic EVA is basically produced in Beijing, divided into extrusion grade 14 type (VA = 14) general-purpose film, 18 type (VA = 18) foam, and injection molding grade 5 type (VA = 5) food packaging film. PVC for injection molding is generally 5 type and 3 type. 6, what is the Chinese of the plastic PPU? Reply：PPU is thermoplastic polyurethane. 7, how to identify PVC plastic, PVC can be recycled granulation? What way to take? How is the current recycled PVC market (2004-12-4)? Reply: 1) PVC Chinese name: polyvinyl chloride. Combustion method of identification, softening or melting temperature range: 75 ~ 90 ° C; combustion: difficult to soften; combustion flame state: on the yellow and green with smoke; away from the fire after the situation: away from the fire extinguished; odor: irritating acidic taste. Solvent treatment identification, solvent: tetrahydrofuran, cyclohexanone, ketone, dimethylformamide; non-solvent: methanol, acetone, heptane. 2) can be regenerated pelletizing. 3) PVC recycling process mainly consists of the following six steps: (1) pre-treatment of PVC wastes; (2) selective dissolution in a mixture of solvents; (3) separation of insoluble substances; (4) regeneration of the precipitation of PVC; (5 ) Drying treatment; (6) Recovery and recycling of solvents 4) The current price is around 8200 yuan / ton (2004-12-4). 8, what is the use of ethylene propylene rubber? Reply: ethylene propylene rubber has three yuan and binary ethylene propylene rubber, general use: all the molded products; general-purpose hose and automotive heat-resistant hose; manufacture of electrical components; due to the excellent extrusion performance, can be mixed with high-viscosity rubber **** to improve its extrudability. 9, beverage bottle cap is what material to do? Reply: Generally made of PP (polypropylene). 10, LL0412LL0501LL0503LL0504LL0505 on behalf of which manufacturers of what model? Reply: LL represents LLDPE; the last four digits represent the delivery time, the first two represent the year, the last two represent the month. For example, LL0505 indicates that the transaction variety is LLDPE, delivery month of May 2005 and so on. And so on. 11, 5000S raw materials are linear plastics? Answer: 5000S is HDPE (high-density polyethylene), not a linear plastic. 12, looking for a plastic that can withstand high temperatures . About more than 200 degrees. Re: PTFE can fulfill the above requirements. In addition, high temperature resistant specialty engineering plastics include fluoroplastics silicone resins polyetherimide polyether ether ketone liquid crystal polymers. Modified nylon, can withstand high temperatures above 250 degrees. 13, ABS belongs to the modified polystyrene class? Reply: ABS is acrylonitrile-butadiene-styrene **** polymer, does not belong to the class of modified polystyrene, modified polystyrene belongs to the PS. 14, high-pressure polyethylene and low-pressure polyethylene and what is the difference between? Reply: High-pressure polyethylene (HPPE) is low-density polyethylene (LDPE); low-pressure polyethylene (LPPE) is high-density polyethylene (HDPE).15, I would like to regenerate plastic pellet plant, but I do not know that those woven bags belong to what material, such as PP, ABS and so on. Response: PP is generally used to make woven bags; ABS is more rigid, generally used to make shells, parts and so on.16, NorylSE1GFN3 is what type of plastic raw material, what is the name?Lexan940 is what type of plastic raw material, what is the name? Lexan940 is what type of plastic raw material, what is the name? Reply: Lexan940 is the U.S. General Electric Plastics production of PC, the market price of 34,000 or so.NorylSE1GFN3J is also a general company, PPO, the market price of 35,000 or so.17, the specific gravity of ABS is how much? Reply: ABS density is about 1.05 grams per cubic centimeter, slightly heavier than water, with tough, hard, rigid characteristics.18, please MSRESIN, ATRATE, TYPE is what type of plastic, what is the name of the name, the price is how much, what is produced? Reply: MSRESIN for MS resin, is commonly used transparent plastic raw materials, general injection molding and extrusion molding, transparency close to PMMA, used for optical components / toys / lampshades lamps / OA accessories / food containers / household appliances / building materials, etc.; mostly imported from Japan and Taiwan, quoted at 15,500 -18,300 or so. 19, what is the English code name of the waste acrylic. What is the price of scrap now? Response: Acrylic (ACRYLIC) is a special kind of organic glass. PMMA is commonly known as plexiglass, also known as acrylic or acrylic, Hong Kong people more called acrylic, is an important thermoplastic developed earlier, with good transparency, chemical stability and weather resistance, easy to dye, easy to process, beautiful appearance, has a wide range of applications in the construction industry. Transparent acrylic scrap price of about 10,000; because of the approaching year-end, acrylic scrap market is in a state of shortage.20, PS material and ABS material performance difference? Reply: PS plastic (polystyrene), material properties: electrical insulation (especially high-frequency insulation) is excellent, colorless and transparent, light transmittance is second only to Plexiglas, coloring resistance, water resistance, chemical stability is good. General strength, but brittle, easy to produce stress cracking, not resistant to benzene. Not resistant to benzene, gasoline and other organic solvents. Suitable for the production of insulating transparent parts. Decorative parts and chemical instruments. Optical instruments and other parts. Molding performance: 1. Amorphous material, small moisture absorption, do not need to be fully dried, not easy to decompose, but the coefficient of thermal expansion is large, easy to produce internal stress. Good mobility, can be used screw or plunger injection molding machine.2. It is appropriate to use high material temperature, high mold temperature, low injection pressure, extend the injection time is conducive to reducing internal stress, prevent shrinkage. Available in various forms of gate, gate and molded parts arc connection, so as not to go to the gate when the damage to the molded parts. Uniform wall thickness of the molded part, and even ejection of the molded part. Uniform wall thickness of the molded part, preferably without inserts, if there are inserts should be preheated. ABS (acrylonitrile-butadiene-styrene), for the light **** granular or bead opaque resin, non-toxic, odorless, low water absorption. Has excellent physical and mechanical properties, excellent low-temperature impact resistance, excellent electrical properties, abrasion resistance, dimensional stability, chemical resistance, coloring. Easy to process molding.ABS is resistant to water, inorganic salts, alkalis and acids, insoluble in most alcohols and hydrocarbon solvents, soluble in aldehydes, ketones, esters and some chlorinated hydrocarbons.The disadvantages of ABS are flammable, low heat distortion temperature, poor weather resistance. Combustion characteristics: flammable; away from the fire continues to burn; flame ***, thick black smoke; softening, foaming; acrylonitrile flavor. Solubility Properties:Soluble solvent:methylene chloride;Insoluble solvent:alcohols,aliphatic hydrocarbons,water. Applications: automotive industry, machinery and equipment, electronic appliances, etc. 21, what PP material is used for syringes? Can it be recycled? How much does it cost per ton? Answer: The PP material used for syringes is a kind of material called random **** poly PP, can be recycled, the current price including tax of about 13,000 used syringes are medical waste, even with, so as not to be harmful. Some users recommend South Korea's RP340R (MI25) or 370Y (MI18); and strongly recommended never use the return material, because it is very easy to cause medical accidents. 22, the use of waste PET, price, processing technology? Re: Uses: recycled pet is mainly used for fiber, sheet, non-food packaging bottles, etc., the development of the use of: construction materials, food packaging and containers, etc., the Japanese company has been the use of polymer alloys to improve the technology of recycled pet processing into a performance better than the use of new materials made of pet powder coating. Price: did not check the public offer, basically a single negotiation. Processing technology: Japan Teijin developed a recycling method from the waste PET bottles DMT (dimethyl terephthalate) and EG (ethylene glycol), the first waste PET bottles crushed and cleaned, and then dissolved in EG, in the boiling temperature of the EG and the pressure of 0.1MPa, the PET for depolymerization, generating bi-mono hydroxyethyl terephthalate (BHET). After filtration to remove the slag and additives, BHET reacts with methanol, and under the boiling temperature of methanol and the pressure of 0.1MPa, it undergoes an ester exchange reaction to produce DMT and EG. Then, after distillation, DMT and EG are separated, and then, through the process of recrystallization, DMT is purified; EG is purified through distillation, and the methanol can be recycled. The purity of both the recovered DMT and EG is 99.99%, and the cost of production is comparable to that of the generic DMT and EG method. DMT can be converted into pure TPA (terephthalic acid), which is used in the manufacture of bottle-grade PET resin. The recycling unit can generate about 10% of the raw materials used by the company to produce resins. 23. How are waste plastics categorized? Reply: commonly used types of waste plastics are roughly divided into PE, PP, PVC, PET, EPS, ABS, PA, etc.; among them, PE has plastic shed material, industrial packaging film, lactic acid beverage bottles, detergent bottles, etc.; PP has woven bags, packing tape, strapping rope, part of the automobile bumper, etc., PVC has plastic door and window profiles, pipes, etc.; PET has Coke, Sprite, etc., tea drink bottles; EPS is commonly known as 24, the chemical name of waste plastics, as well as a variety of waste plastics into particles can be done after what finished plastic products. For example, mineral water bottles made of granules can do what? What is its chemical name? What is the chemical name of a knitting bag that can be made into pellets? Answer: Thermoplastic finished products can be recycled and re-pelletized, called recycled plastic, its name is ** recycled material. Theoretically, its use is slightly narrower than the new material. Because of the recycling technology level and finished product use of special: such as food packaging, medical and so on (in order to avoid harm to the human body, generally such products do not use recycled materials). But the advanced recycling technology and strict recycling system in developed countries has made the performance of recycled materials close to new materials, and even through the nature of the synthesis can be developed for new uses. Domestic technology is backward, and so far, the recycled plastic granules have not introduced enterprise standards or national standards. Therefore, the quality of plastic recycled material varies, and its use should be based on its specific technical indicators. 25, organic plastics (acrylic) What is the English code? Reply: Acrylic (ACRYLIC) is a special kind of organic glass, referred to as PMMA26, what is the scientific name of nylon? 回复：Nylon also known as PA or polyamide. 27, the kind of infusion tubes used in hospitals is made of what plastic? Reply：PVC,PE28、Detailed use of polytetrafluoroethylene? Response：Polytetrafluoroethylene (PTFE) is commonly known as the king of plastics, is the largest production and dosage of fluorine plastic varieties, accounting for about 70% of the entire production of fluorine plastics, used in the chemical industry, machinery, electrical appliances, construction, electronics, automobiles, and many other fields 29, please ask the information about PPR? Aluminum-plastic PPR composite pipe and stainless steel PPR composite pipe. Response: No recent stock, so no offer. PPR pipe products for industrial and civil buildings in the life, sanitation, drinking water supply and hot water heating system, is to replace the copper pipe and galvanized pipe upgrading products, can be used for: 1 residential hot and cold water system 2 water purification, pure water piping, 3 industrial water and chemical transmission, discharge, 4 hot water circulatory system, 5 compressed air pipe, 6 food, beverage production and delivery systems, 7 and others. Industrial and agricultural pipes. Steel-plastic composite pipe is widely used in urban construction water supply, natural gas, petrochemical and other fields of environmentally friendly ideal pipe. Steel-plastic composite pipe has the double advantages of metal and plastic; high temperature and high pressure resistance, corrosion resistance; smooth inner wall of the pipe, low resistance, no scaling, non-toxic, non-polluting, anti-static, heat insulation and heat preservation, easy to cut, processing. Aluminum-plastic composite pipe applications: industry: a variety of instruments, instrumentation, shielding conduit, insulated conduit, a variety of gases, liquids, medium transmission pipeline. Construction industry: building indoor cold, hot water, gas conduit, solar water heater hot and cold pipe, low temperature radiation, heating pipe. Agriculture: nursery, orchard, garden sprinkler irrigation pipes and other irrigation projects with pipes. Public **** business: hot and cold hot water pipes in hotels and restaurants, hospital oxygen pipeline, food pipeline, a variety of air conditioners with the pipe, a variety of pipelines on the ship. 30, used for the spring of the plastic is what material? Response: the spring plastic performance of the main request: 1, the deformation energy V value to be large (that is, the spring modulus E value to be small) 2, strength, especially fatigue strength to be large 3, easy to process the molding thermosetting fiber reinforced plastics (FRP) deformation energy V value is larger than the general metal, can be compared with the spring steel; and its strength is high, stress is unidirectionally distributed, is the manufacture of leaf springs the ideal material. 31, ABS.PS.PP. PE and other materials, such as the characteristics of the main purpose and the difference between the various standards. Response: ABS has good rigidity, high impact strength, heat resistance, low temperature resistance, chemical resistance, mechanical strength and electrical properties are excellent, easy to process, processing dimensional stability and good surface gloss, easy to paint, coloring, but also can be sprayed metal, plating, welding and bonding and other secondary processing properties. Main applications: automobiles, appliances, electronics / electrical appliances, building materials, ABS alloys / **** mixture of PS electrical insulation (especially high-frequency insulation) is excellent, colorless and transparent, light transmittance is second only to plexiglass, coloring resistance, water resistance, good chemical stability. General strength, but brittle, easy to produce stress cracking, not resistant to benzene. Not resistant to benzene, gasoline and other organic solvents. Suitable for the production of insulating transparent parts. Decorative parts and chemical instruments. PE is basically divided into three categories, namely, high-pressure low-density polyethylene (LDPE), high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE). Film is its main processed product, followed by sheets and coatings, hollow containers such as bottles, cans, drums and other various injection molded and blow molded products, pipes and wires, cables insulation and sheathing. Mainly used in packaging, agriculture and transportation sectors. pp cheap, light, good processability and wide range of uses, catalysts and the development of new processes to further promote the expansion of the application areas, it has been said: "as long as there is a product of the material is replaced by plastics, the product has the potential to use polypropylene". Main uses: woven bags, tarpaulins, consumer durables: such as automobiles, home appliances and carpets, etc. 32, PC commonly used products are those kinds of VCD discs and the outer packaging box is what plastic? Answer: Polycarbonate (PC) materials with lightweight, transparent, high strength, shock resistance and good processing performance, etc., in the course of more than 50 years of development, the field of application continues to expand. pc products have been used to penetrate the automotive, architectural, medical, apparel and other industries, pc lamps, pc automotive sunroofs, automotive communication systems in the light wave conductor fiber optic, transparent canopy roof, pc sheet, pc, pc, pc, pc, pc, pc, pc, pc, pc, pc, pc and pc. In addition, the bottom of the swimming pool since the lighting system, solar energy collection system, high-definition large TV screen, textiles can be fabric material identification chip marking fibers and other brand new areas are less PC materials, PC products are contributing to all walks of life, and its application potential will be further developed. CD-ROM is the most familiar PC applications, and it is moving towards the direction of large-capacity development, the new DVD storage capacity is expected to reach 100 billion bytes. 33, pc's performance response: high impact strength, dimensional stability model, colorless and transparent, good coloring, electrical insulation, corrosion resistance, wear resistance, but nourishing lubrication is poor, there is a tendency to stress cracking, easy to hydrolyze at high temperatures, poor compatibility with other resins. 34, China's current PC material is the most familiar PC applications, and it is moving towards the direction of large-capacity development, new DVD storage capacity is expected to reach 100 billion bytes. Poor compatibility with other resins. 34, China's largest recycled plastics market is that a few places? Response：Generally new material trading is more active in the region, the recycled material trading is also more active, such as Yuyao, Guangdong, Shandong and so on. 35、What is ACETAL (acetaldehyde diethyl acetal) commonly known as material? What is the performance? Response：ACETAL for acetal, acetaldehyde diethyl acetal; commonly known as plastic steel (Hong Kong and Taiwan have said: plastic steel); can be used to do outdoor products such as buckles, high hardness, moisture, can be in the cold or dry environment. 36, in 180 degrees in the deformation of the plastic raw materials are not? Reply：Aromatic nylon high temperature resistance can reach 260 ℃, there are fluorine plastic and other high temperature can be resistant to this and other high temperature. 37, PP powder is a general-purpose materials? Is it as common as injection molding and wire drawing? Can it replace PP material? How much is the market price? Response：PP plastics are general-purpose plastics. As long as the equipment allows, powder and granules can replace each other, the current market price of 10200 or so. 38, ask the daily price of oil Brent, WTI, OPEC oil prices are how to analyze, while oil futures high and low is how to look at the future trend of plastics is now high or low? Re: by the role of cost-driven principle,: crude oil - naphtha - ethylene - polyethylene - plastic products, crude oil prices and plastics trend is consistent (short-term deviation is also very normal), but this impact from the theory should have a certain lag effect, and Not like the current domestic plastics market such a reaction so sensitive. At present, the international oil prices on the domestic plastics market is mainly the influence of the mentality, as well as the role of a herd mentality. When the market returns to rationality, the supply and demand of plastics itself will have a greater impact on market prices