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Study On Resin Modification Of Waterborne Alkyd Resin Coatings
Alkyd resin coating has become one of the most studied and produced coatings in the coating industry because of its easy availability of raw materials, low price and excellent gloss, flexibility and adhesion. However, the traditional alkyd resin coating has some disadvantages such as low coating hardness, water resistance and heat resistance, and its application can not meet the requirements of industrial development for high performance. It is imperative to modify and expand the application field of alkyd resin coating.
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Synthesis Of UV Curable Waterborne Polyurethane Acrylate Coatings
Uv-wpua coating is composed of oligomer, photoinitiator, active diluent, etc. Oligomer is the most important component in uv-wpua coating. Its structure determines the basic properties of UV curing film, such as hardness, flexibility, wear resistance, water resistance and corrosion resistance. Photoinitiator is an important component of UV curing system, which plays an important role in the sensitivity of UV curing process and also affects the final performance of cured film. Uv-wpua coating uses water as active diluent, which greatly reduces the use of organic solvents.
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Waterborne Polyurethane Matting Resin
Aqueous polyurethane is an aqueous solution, dispersion or aqueous lotion formed by polyurethane resin in water. It is widely used in building, home, automobile, leather clothing, household appliances and other decorative coatings. Waterborne polyurethane can be used to prepare matting coating. At present, the matting effect of coating resin is mainly obtained by adding matting agent and self matting modification of resin.
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Study On Modification Of Waterborne Polyurethane Leather Finishing
In the process of leather production, finishing is a very important process, which has a very important impact on the use value of leather. With the development of economy and the continuous improvement of people’s living standards, people have higher and higher requirements for leather finishing agents, and in recent years, they have gradually moved closer to the environment-friendly type. The waterborne polyurethane leather finishing agent can effectively avoid the pollution and toxicity of traditional finishing agents, and has the characteristics of easy storage, transportation and non combustion. It has excellent performance, but it still has some shortcomings in wear resistance and water resistance. It needs relevant staff to actively explore and modify the waterborne polyurethane leather finishing agent.
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Application Of Water-Based Environmental Protection Ink In Food Packaging
As a new type of packaging and printing material, the biggest advantage of water-based ink is that it does not contain volatile organic solvents. Its use reduces the amount of volatile organic compounds (VOCs), does not damage the health of ink manufacturers and printing operators, and improves the environmental quality. Therefore, it can be called an environmental friendly ink. The biggest characteristics of water-based ink are no pollution to the environment, no impact on human health, no combustion, and good safety. It can not only reduce the residual toxicity on the surface of printed products, make it convenient to clean printing equipment, but also reduce the fire risk caused by static electricity and flammable solvents. In addition to environmental protection, the printing characteristics of water-based ink are also good. The water-based ink has stable performance, does not corrode the plate, simple operation, low price, good adhesion after printing, strong water resistance and rapid drying. Water based inks are not only used in flexographic printing and screen printing with great development potential.
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Pure Problems Of Water-Based Ink In PVC Color Film Intaglio Printing
As an alternative to traditional paint, PVC color film is a widely used decorative material for modern household cabinets, wardrobes, blister wood doors, integrated walls, plastic floors and other building materials due to its high efficiency and realistic color. The traditional PVC plastic color film is printed by solvent based ink intaglio printing. Because there are a large number of volatile organic compounds (VOCs) in the solvent based system, the volatilization of VOCs in the printing process brings bad production and operation environment, odor residue and solvent volatilization, which brings about gas pollution and waste of petrochemical resources.
