Question 1: What is acrylic? Is it plastic? What is the difference between good and bad? It’s plexiglass
1. If the material is surrounded by leather edges, it won’t scratch your hands
2. The surface paper mold is not damaged. Generally, the paper mold of new materials produced recently is fine.
3 Transparency and vividness of color. Tear off the dotted paper mold at the corner of the material and look at it against the light or lamp. It will be obvious
4. Tear open the dotted paper mold at the corner of the material. Water lines and ice flower-like things will appear on the surface of the material. , you can see at a glance
5 Tolerances for material thickness. It's not visible to the naked eye, so it's best to use a caliper to measure. (The tolerance of a good material is about 0.2MM plus)
The thickness tolerance of a poor board is around 0.8MM, which can be reflected by touching it by hand.
Question 2: Which one is heavier, acrylic or plastic? Acrylic is also called PMMA, its chemical name is polymethylmethacrylate, commonly known as plexiglass. Its light transmittance is very good.
Acrylic is also a type of plastic, so I don’t know which plastic you want to compare it with.
However, acrylic is a relatively light plastic among plastics. Its density is smaller than nylon, PPS, PBT, FPC, and ABS, but larger than PP, PS, and PE.
Question 3: The difference between plastic and acrylic. I don’t know what kind of plastic you are talking about, but no matter what kind of plastic it is, "acrylic has high transparency" and the light transmittance reaches 92%, which is the same as other plastics. Characteristics that it does not have can generally be judged based on this
Question 4: What is acrylic? What is the difference between acrylic and plastic? Let’s take a look at the noun explanations of what is acrylic and what is plastic. The point to note here is that there is definitely a difference between acrylic and plastic. But in real life, many people easily confuse acrylic and plastic.
Acrylic is plexiglass. According to the production process, acrylic sheets can be divided into casting type and extrusion type. The performance of casting type sheets is better than that of extrusion type, and the price is also more expensive. Casting type The sheets are mainly used for engraving, decoration, and handicraft production. The extruded ones are usually used for the production of advertising signs, light boxes, etc.
Plastics are polymer compounds (macromolecules) that are polymerized from monomers through addition polymerization or condensation polymerization. They are commonly known as plastics or resins. The composition and shape can be changed freely. , composed of synthetic resin and fillers, plasticizers, stabilizers, lubricants, colorants and other additives.
The main component of plastic is resin. The term resin was originally named after the lipids secreted by animals and plants, such as rosin, shellac, etc. Resin refers to polymer compounds that have not been mixed with various additives. Resin accounts for approximately 40 to 100% of the total weight of plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins with no or less additives, such as plexiglass, polystyrene, etc.
The so-called plastic is actually a kind of synthetic resin. Its shape is similar to the pine resin in natural resin. It is artificially synthesized by chemical means and is called plastic.
Let’s see what acrylic is like! Look around the material.
If it’s leather, you won’t need to scratch it. Tear off the paper mold at the corner of the material and look at the light or lamp. It will be obvious. The paper mold on the surface is not damaged. Generally, for new boards produced recently, the paper mold is firmly attached.
Question 5: What is the difference between plastic and acrylic? It's a bit long, so take a long look. . A brief history of plexiglass acrylic (acrylic) As early as the 1920s, Rohm and Haxin Company first invented the method of polymerizing MMA into acrylic sheets. This sheet was later called "Oroglas/Plexiglas".
Features:
Good weather resistance, acid and alkali resistance, no yellowing or hydrolysis caused by years of exposure to the sun and rain
Long service life, unlike other materials Compared with other products, the service life is more than three years longer
It has good light transmittance, which can reach more than 92, and the required light intensity is smaller, saving electricity.
It has strong impact resistance and is an ordinary Sixteen times that of glass, suitable for installation in areas that require special safety
Excellent insulation performance, suitable for various electrical equipment
Light weight, half lighter than ordinary glass, suitable for buildings and brackets It bears a small load
It has bright colors and high brightness, which is incomparable to other materials
Strong plasticity, large shape changes, and easy processing and molding
Recycling rate High, recognized by the increasing awareness of environmental protection
Easy to maintain and easy to clean, it can be cleaned naturally with rainwater, or wiped with soap and soft cloth
Classification, composition and Performance plastic is a synthetic polymer material with a wide range of uses. Plastic products abound in our daily lives. From the toiletries we use after getting up, the tableware we use for breakfast, to the stationery we use when working and studying, the seat cushions and mattresses we use when resting, as well as the casings of TVs, washing machines, computers, and what the night brings to us Bright lamps of various shapes... With its excellent performance, plastic has gradually replaced many materials and utensils that have been used for decades or centuries, becoming an indispensable assistant in people's lives. Plastic combines the hardness of metal, the lightness of wood, the transparency of glass, the corrosion resistance of ceramics, and the elasticity and toughness of rubber. Therefore, in addition to daily necessities, plastics are more widely used in aerospace, medical equipment, petroleum Chemical industry, machinery manufacturing, national defense, construction and other industries. 1. Classification of plastics
There are many types of plastics. So far, there are about 300 kinds of plastics put into production in the world. There are many ways to classify plastics, and there are two commonly used ones:
1. According to the different properties of plastics after heating, they are divided into thermoplastic plastics and thermosetting plastics
The molecular structure of thermoplastic plastics is all linear Type structure, softens or melts when heated, can be molded into a certain shape, and hardens again after cooling. It softens again after being heated to a certain extent, and hardens again after cooling. This process can be repeated many times. Such as polyvinyl chloride, polyethylene, polystyrene, etc. The thermoplastic molding process is relatively simple, can be produced continuously, and has very high mechanical strength, so it is developing rapidly.
The molecular structure of thermosetting plastics is a body structure. It softens when heated and can be molded into a certain shape. However, when heated to a certain extent or a small amount of curing agent is added, it hardens and shapes and is heated again. It won't soften or change shape. After thermosetting plastics are processed and formed, they no longer soften when heated, so they cannot be recycled and reused. Such plastics include phenolic plastics, amino plastics, and epoxy resins. The molding process of thermosetting plastics is relatively complex, so continuous production has certain difficulties, but it has good heat resistance, is not easy to deform, and is relatively cheap.
2. According to the different uses of plastics, they are divided into general plastics and engineering plastics
General plastics refer to plastics with large output, low price and wide application range, mainly including polyolefin, polyethylene Five major varieties: vinyl chloride, polystyrene, phenolic plastics and amino plastics. Many of the products people use in our daily lives are made from these common plastics.
Engineering plastics are plastics that can be used as engineering structural materials and as replacements for metal manufacturing machine parts. For example, polyamide, polycarbonate, polyoxymethylene, ABS resin, polytetrafluoroethylene, polyester, polysulfone, polyimide, etc. Engineering plastics have the characteristics of low density, high chemical stability, good mechanical properties, excellent electrical insulation, and easy processing and molding. They are widely used in automobiles, electrical appliances, chemicals, machinery, instruments, meters and other industries, as well as in aerospace, rockets , missiles, etc.
2. Composition of plastic
The plastic we usually use is not a pure substance, it is made of many materials. Among them, high molecular polymers (or synthetic resins) are the main components of plastics. In addition, in order to improve the performance of plastics, various auxiliary materials are added to the polymers, such as fillers, plasticizers, lubricants, stabilizers, Colorants, etc., can become plastics with good performance.
1. Synthetic resin
Synthetic resin is the main component of plastics, and its content in plastics is generally 40% to 100%. Due to the large content and the properties of the resin often determine the properties of the plastic, people...gt;gt;
Question 6: Is acrylic a plastic? Or? Which material does it belong to? Acrylic is also called PMMA or acrylic. They are all the Chinese names for acrylic in English. When translated, they actually mean plexiglass. The chemical name is polymethylmethacrylate. Most people in Hong Kong call it acrylic. It is an important thermoplastic that was developed earlier. It has good transparency, chemical stability and weather resistance. It is easy to dye and process and has beautiful appearance. It is widely used in the construction industry. . Plexiglas products can generally be divided into cast sheets, extruded sheets and molding compounds.
Question 7: What is the difference between acrylic and ABS plastic? Completely different materials
They are both plastic boards, but the materials are completely different
Chemical name of ABS plastic: acrylonitrile-butadiene-styrene polymer, full English name: Acrylonitrile Butadiene Styrene. ABS is an excellent engineering plastic. ABS materials are used in many high-end electrical appliances.
Characteristics of ABS plastic:
1. Good comprehensive performance, high impact strength, chemical stability, and good electrical properties;
2. Compared with 372 Plexiglas has good weldability and can be made into two-color plastic parts, and the surface can be chrome-plated and spray-painted;
3. There are high impact resistance, high heat resistance, flame retardant, reinforced, transparent and other levels;
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4. The fluidity is slightly worse than HIPS, better than PMMA, PC, etc., and has good flexibility.
Applications of ABS plastic: Suitable for making general mechanical parts, wear-reducing and wear-resistant parts, transmission parts and telecommunications parts.
Acrylic is made of polymethylmethacrylate (PMMA) material mixed with fillers, commonly known as artificial marble. The performance is much worse than ABS.
Question 8: As for the material of air conditioners, which one is better, acrylic or plastic? Acrylic itself is just one category of plastic. Which product to choose depends on what your requirements are, whether it needs to be easy to process or weather-resistant. , impact resistance, light weight, low cost, etc. There are many factors.
Question 9: The difference between pet plastic and acrylic PET: polyethylene terephthalate, the English name is polyethylene terephthalate (PET for short)
PET is widely used as fiber, and Engineering plastic resin can be divided into two categories: non-engineering plastic grade and engineering plastic grade. Non-engineering plastic grade is mainly used for bottles, films, sheets, bakery-resistant food containers, etc.
Can be in direct contact with food, but cannot be heated at high temperatures
Acrylic: PMMA plastic (plexiglass) (polymethylmethacrylate) English name: Polymethyl Methacrylate
It has excellent transparency, high strength, certain heat and cold resistance, corrosion resistance, and good insulation. Its overall performance exceeds that of polystyrene, but it is brittle and easily melted in organic solvents. If it is used as a light-transmitting material, its surface The hardness is slightly low and it is easy to scratch. It is suitable for making transparent insulating parts and parts with average strength.
Acrylic should not come into contact with food.
(Global Plastics will give you the answer, please accept it if you are satisfied)
Question 10: What is the difference between acrylic sheets and plastic sheets? The simplest method is to place two boards vertically on the ground about 8cm above the ground. The plastic board with a crisper sound is the stronger one. (I’ve seen scrap collectors identify this way)