White latex is currently the most widely used, the largest amount of adhesive varieties. Most of the traditional white latex to vinyl acetate, polyvinyl alcohol as the main raw material, polymerization process is complex, the production cycle is long (8-13 hours), the product cost is high (qualified products vinyl acetate content is generally in the 20% -40%. The current price of vinyl acetate has been as high as about 10,000 yuan per ton, the cost of this raw material alone is as high as more than 2,000 yuan), most of the production enterprises operating at a small profit or at the expense of quality to reduce costs and produce poor-quality products. And currently flooding the market with modified products, the quality is more unstable, there are slow drying, poor water resistance, easy to fall off the bonding place in water, short shelf life, easy to precipitate delamination and even mildew and other shortcomings, especially in the winter low-temperature conditions gel phenomenon is common, and the initial adhesion is weak, pulling, the use of inconvenience.
In order to meet the growing demand for white latex, reduce product costs, improve quality, over the past few years, the company's scientific research team has been committed to the study of white latex replacement, drawing on advanced experience at home and abroad, boldly adopt the new modern technology, optimize the new formula, the exclusive development of a new type of strong anti-freeze water-resistant white latex without vinyl acetate monomer. Dozens of units receiving this technology put the product on the market and quickly get the praise of users and market recognition. The products are replacing the traditional high-quality white latex in the market with the advantages of low cost and high quality. After thousands of experiments and improvements by researchers, the production process and formula have been constantly updated and improved in the past few years. The current transfer of fast-drying type series, product quality, performance, price ratio and have a greater improvement, and expand the product use, with a stronger market competitiveness.
Second, the product technical characteristics
1. The use of new formulations, new technology to produce this product, with excellent performance of polymer materials and several other readily available chemical raw materials formulated to completely change the traditional white latex materials, formulas and production processes. The production process is simple.
2. The main technical indicators: dry strength, the national standard for 6.9Mpa, the product up to 9.6Mpa, wet strength (strength after water immersion), the national standard for 2.0Mpa, the product up to 4.8Mpa. Viscosity, adhesive strength, water resistance, anti-freeze performance are far more than the national standard.
3. The appearance of the product is milky white, does not contain organic solvents, non-toxic, no odor, non-flammable, non-explosive, non-corrosive, packaging, transportation, storage, easy to use, the product has a long shelf life.
4. This product has stable performance, good film-forming properties, low film-forming temperature, the lowest film-forming temperature of 3 ℃. Water as a medium, when used with water, traditional white latex and other emulsions can be mixed and dissolved, according to the need to adjust the viscosity of the product and bonding strength. There will not be precipitation, delamination, gel, freezing and other undesirable phenomena, no pollution to the production and construction environment.
5. Good water resistance, water immersion for 10 days without glue. The film is soft and elastic, with good initial adhesion and high bonding strength.
6. This product has strong adhesion to wood, paper, fiber, cement, leather and other materials, and is widely used in the printing industry, wood bonding, plywood processing, construction, leather shoes, cigarette industry, paper processing, fiber processing, aluminum foil processing, sandpaper and sandpaper bonding, coating, decoration and other industries. And can be used for paper - plastic, paper - glass bonding, in some areas to replace the special adhesive. The unique water resistance is regarded as an ideal low-cost emulsion by coating manufacturers, and the market prospect is extremely broad.
7. The production cycle of this process is only 4-6 hours, saving time and labor, saving energy, small investment in equipment, high utilization rate. No condenser, reflux device.
Second, white paint: First of all, the statement, white paint nine times in a kind of paint, is white, so called white paint: Hi there are paint time in gray, etc., this time you can mix the ......
1, what is paint
Dope, traditionally known as paint in China. China's paint industry is more authoritative "paint technology" book is defined in this way: "paint is a material, this material can be coated with different construction techniques on the surface of the object, forming a strong adhesion, with a certain strength, continuous solid film. The film so formed is commonly known as coating film, also known as paint film or coating." In the early days, most of the paint was made from vegetable oil, so it was called "paint". Whether it is the traditional natural substances as raw materials for paint products, or the modern development of synthetic chemical products as raw materials for paint products, all belong to the organic chemical polymer materials, the formation of the coating film belongs to the type of polymer compounds. According to the modern general classification of chemical products, coatings belong to fine chemical products. Modern coatings are gradually becoming a class of multifunctional engineering materials, is an important industry in the chemical industry.
2, the difference between coatings and paints
Coating: Alayerofasubstancespreadoverasurfaceforprotectionordecoration (a layer of substances covering the surface of an object for protection or decoration) Paint: Aliquidmixture,usuallyofasolidpigmentinaliquidvehicle,usedasadecorativeorprotectivecoating (paint a liquid mixture used as a decorative or protective outer layer, usually consisting of a liquid color spreader and solid pigments) paint: A substance applied to the surface of an object to make it beautiful or corrosion-resistant. Such as: paint, coal tar, etc. Paint: the old name of the paint; refers to the oil and lacquer paint products in the specific paint varieties commonly used in the naming of the word "paint" that "paint", such as blending paint, primer, topcoat, etc.
3, the function of the paint
2) decorative function: color, gloss, pattern and flatness. Objects of different materials coated with paint, you can get colorful, colorful appearance, play a role in beautifying the human living environment, the material life of mankind and spiritual life to make a contribution that can not be ignored.
3) Other functions: marking, antifouling, insulation, etc.. For modern paints, this role with the first two roles compared to show its importance more and more. Some modern paint varieties can provide a variety of different special features, such as: electrical insulation, conductive, shielding electromagnetic waves, anti-static generation and other roles; mildew, sterilization, insecticidal, anti-marine organisms adherence and other biochemical aspects of the role; high temperature resistance, heat preservation, show temperature and temperature marking, prevention of delayed combustion, ablative insulation and other thermal aspects of the role; reflective light, luminescence, absorbing and reflecting infrared rays, absorbing solar energy, shielding Ray, mark the role of optical properties such as color; non-slip, self-lubricating, anti-splash and other mechanical properties of the role; and anti-noise, vibration, sanitation, disinfection, anti-condensation, anti-icing and other different roles. With the development of the national economy and the progress of science and technology, paint will provide and play a variety of newer special functions in more ways.
4, the composition of the coating
The coating is mainly composed of four parts: film-forming substances, pigments, solvents, additives.
Film-forming substances - is the basis of the coating, which plays a decisive role in the performance of the coating and film, it has the function of bonding the other components in the coating to form a coating film. There are many varieties of substances that can be used as film-forming substances, and resins are mainly used in the contemporary paint industry. Resin is an organic substance that exists in an amorphous state, usually referred to as a polymer. In the past, coatings used natural resins as film-forming substances, but in modern times, synthetic resins are widely used, such as alkyd resins, acrylic resins, chlorinated rubber resins, epoxy resins and so on.
Pigment - is a major component of colorful paint (color paint). Pigments give color to the coating film and give the film the ability to cover the object to be painted in order to play its decorative and protective role. Some pigments can also provide such properties as: improving the mechanical properties of the paint film, improving the durability of the paint film, providing anti-corrosion, electrical conductivity, flame retardant and so on. Pigments can be divided into natural pigments and synthetic pigments according to their sources; inorganic pigments and organic pigments according to their chemical composition; coloring pigments, body pigments and special pigments according to their roles in paints. Inorganic pigments are the most used in paints, synthetic pigments are also widely used, and now the development of organic pigments is very fast.
Solvent--Solvent can dissolve or disperse the film-forming material in the paint into a uniform liquid state, so as to facilitate the construction of the film, when the construction of the film and can be volatilized from the paint film to the atmosphere of the material, in principle, the solvent does not constitute a film, and should not be retained in the coating film. Many chemicals including water, inorganic compounds and organic compounds can be used as solvent components of paints. Some modern coatings have been developed and applied to dissolve or disperse the film-forming material into liquid form, but also in the construction of the film-forming process and the film-forming material to form a chemical reaction to form a new substance and stay in the paint film compounds, known as reactive agents or active diluents. Solvents are added to the paint when it is manufactured, and some are added to the paint when it is constructed.
Auxiliaries--also known as the auxiliary material component of the paint, but it can not independently form a coating film, it can be a component of the coating film after the coating film and exist in the coating film. The role of the additives is to improve the performance of a particular aspect of the coating or film. Different varieties of coatings require the use of different additives; even for the same type of coating, different additives are required due to different purposes, methods or performance requirements; a variety of different additives can be used in a coating to play their different roles. (For example: defoamer, wetting agent, anti-sagging, anti-settling, drying agent, plasticizer, mildew agent, etc.)
5, paint classification
After a long period of development, the paint varieties are particularly varied, and there are many ways to classify them: ① according to the paint form (powder, liquid) ② according to the film-forming mechanism (transformed, non-transformative) ③ according to the method of construction (brushing, rolling, spraying, dipping, pouring.) ④ according to the drying method, By drying mode (drying at room temperature, drying, moisture curing, steam curing, radiation energy curing) ⑤ by the use of the level (primer, paint, top coat, putty, etc.) ⑥ by the appearance of the film (varnish, color paint; no light, flat, matte, high-gloss; hammered paint, embossed paint) ⑦ by the use of object points (automotive paint, marine paint, container paint, aircraft paint, home appliances) ⑧ according to the performance of the paint film points (corrosion-resistant paint, insulating paint, conductive paint, etc.) Anti-corrosion paint, insulating paint, conductive paint, heat-resistant paint) ⑨ according to the film-forming substances (alkyd, epoxy, chlorinated rubber, acrylic, polyurethane, vinyl) above the various classifications have their own characteristics, but no matter which classification method can not be so specific to the paint are included, so the world has not been a unified classification method. China's national standard GB2705-92, the use of coatings in the film-forming substances as the basis for classification.
Edit the film-forming mechanism of paint
Paint finishing construction on the surface of the coated object is only the completion of the first step of the film-forming paint, but also to continue the process of becoming a solid continuous film in order to complete the entire paint film-forming process. This "wet film" into a "dry film" process is usually called "dry" or "curing". This drying and curing process is the core of the coating film-forming process. Coatings of different forms and compositions have their own film-forming mechanisms, which are determined by the nature of the film-forming substances used in the coating. Usually we will paint the film formation occurs into two categories: (1) non-transformative generally refers to the physical film-forming mode, that is, mainly relying on the film in the solvent or other dispersing medium volatilization, the film viscosity gradually increased and the formation of a solid film. For example: acrylic coatings, chlorinated rubber coatings, asphalt paints, vinyl coatings, etc. (2) transformed generally refers to the film-forming process occurs in a chemical reaction, and coatings rely mainly on chemical reactions occurring in the film. This film is the film-forming material in the coating after the construction of polymerization called polymer film process, can be said to be a special polymer synthesis, which fully follow the polymer synthesis reaction mechanism. For example: alkyd coatings, epoxy coatings, polyurethane coatings, phenolic coatings, etc. However, most of the modern coatings are not a single way to form a film, but relies on a variety of ways to finally form a film.
6, wash the paint
1. ride the paint is not dry, the first kerosene repeatedly rubbed, and then coated with some dilute acetic acid (not acetic acid can also be, but the effect is a little worse), and finally washed, can be removed. Dry paint stains are more difficult to remove, there is a simple method: add 2.5 kg of water in the pot, 100 grams of lye and a little lime, put the clothes inside the boil for 20 minutes, take out the soap after washing, the paint will fall off. It should be noted that: colored clothes are best not to use this method, so as to avoid decolorization.
2. clothing accidentally stained with paint, with gasoline, banana water (acetate) to eliminate, will affect the texture of the clothing. The best way is to use cool oil coating: in the paint stains on the front and back of the cool oil coated with a little, every few minutes, with a cotton ball along the grain of the material wipe, will receive the desired effect.
Edit this section of the finished paint
Stencil paint, interior and exterior wall latex paint, fireproof latex paint, etc.
7, the home improvement process on the use of paint common sense
Paint is one of the indispensable materials in the process of home improvement and decoration. In recent years, with the continuous improvement of people's lives, as well as environmental protection calls for the increasingly high demand for decorative paint. Decorative varieties of paint has also been from the past tung oil, regular paint to the direction of the development of synthetic resin paint. To meet the needs of different consumers.
At present, the general varieties of decorative paint phenolic paint, alkyd paint, nitro paint, polyurethane (PU polyester) paint, polyester paint, acrylic paint, etc., of which the polyurethane paint is currently widely used in interior decorating, one of the largest amount of varieties of paints, it's paint film is tough, strong adhesion, abrasion, water, chemical corrosion resistance, light, color and other excellent paint film performance favored by the people.
How to choose polyurethane paint, the main use of the following methods:
1), many varieties of polyurethane paint, according to the type of packaging is divided into a single can (i.e., single-component) urethane resin paint, double cans of cans (i.e., two-component) urethane resin paint, three cans of (i.e., three-component) urethane resin paint and so on, the family usually choose double cans of (i.e., two-component) urethane resin paint.
The two-component paint is divided into component A and component B, a package of 3 barrels (a barrel of top coat, a barrel of hardener, a barrel of thinner).
2), polyurethane paint is generally divided into high-gloss, glossy, semi-sub, matte, the most popular is matte paint, consumers can choose according to the decorative effect of the family as well as their own preferences.
3), to determine the type of paint selected, observe the outer packaging cover and welded seams, there is no leakage. The weight of the paint in the can is consistent with the weight labeled on the outer packaging.
4), for the two-component polyurethane paint, one group is divided into the curing agent, holding the tin can shaking, there should be a feeling of paint shaking, proving that the curing agent is basically intact. Another look at the shelf life of the curing agent, generally 6 to 12 months.
5), the early polyurethane paint products, poor light retention, easy to yellow, furniture after finishing, the color is dark. It is best to buy yellowing-resistant polyurethane paint, tin can packaging is generally uniformly marked.
Sign on the current market polyurethane paint quality gap is very large, mixed eyes, paint market is more chaotic, for the inner quality of paint, in the field is difficult to separate good and bad, it is recommended to buy paint, it is best to choose a high visibility of the large-scale enterprises with a more perfect management mechanism and testing means to ensure that the product's qualification rate.
8, how to use polyurethane paint?
Two-component polyurethane paint, the enterprise will generally be divided into A and B components of the paint, respectively, packaged to supply users. When used, painters according to the ratio of group A and group B to mix their own. Blending use should pay attention to the following points:
1), polyurethane paint manufacturers, group A and group B ratio is not the same, must be strictly in accordance with the "product description" of the proportion of preparation, with the use, with how much with how much. Matching is best completed within four hours, so as not to take too long, self-curing scrap.
2), paint and paint process, avoid contact with water, acid, alkali, alcohols, etc., otherwise it will deteriorate.
3), two-component mixing can be painted by brush, spray, drenching method.
4), the construction of tools and the surface to be coated to ensure that dry and clean, such as moisture will affect the quality of the coating.
5), the construction of the best to avoid rainy days, or high humidity weather, so as to avoid the coating white, affecting the quality of paint film.
6), home decorative walls and wood furniture, it is best not to paint at the same time, such as walls painted latex paint, wait for the coating to dry, and then painted wood furniture, so as to avoid yellowing of the coating.
7), did not use up the paint, especially the container of hardener, must seal the mouth to prevent seepage, leakage.
9, about the amount of paint latex paint two formulas
Wall latex paint amount = 1/10 * total area of the wall * 2 (brush two times)
Furniture primer amount = 1/15 * need to be painted area * 3 (brush three times)
Furniture top coat amount = 1/15 * need to be painted area * 2 (brush two times)
Auto Paint knowledge
Automobile paint is usually baking paint. Inside the garage, after the frame and body are welded and the body is repaired by hand, the next process is painting. Generally, the first step is primer. The white body is dipped into a syrupy paint tank and removed to dry the primer; then it is sent to a dust-free workshop, where it is sprayed with topcoat using the electrostatic spraying process, and then dried at a temperature of about 200 degrees. In some cases, a clear coat is applied. In this way, the painting process is completed. Generally there are several kinds of topcoats: ordinary paint, metallic paint, pearlescent paint. The main components of ordinary paint are resin, pigment and additives; metallic paint has more aluminum powder, so it looks bright after finishing; pearlescent paint is added mica particles. Mica is a very thin piece with reflective properties, which gives it a colorful effect. If it is a metallic paint with a clear coat, the paint will look dazzling. |
What brand of white latex is good?2023 Top 10 White Latex Brands