The resin has excellent adhesion to metals, especially aluminum, and also has excellent adhesion to PVC products, paper, fiber, glass, ceramic tiles, sand and wood. Polymer of vinyl chloride (VC) and vinyl acetate (VAC) and maleic anhydride (maleic anhydride). The function of VAM is as follows: 1. The gloss is unstable, which is helpful to reduce the surface gloss at low temperature and low humidity. 2。 Accelerate the whitening of paint film. 3。 Increase the dependence on solvents. 4。 Increase the cost (some bad factors caused by the use of chlorine vinegar). Chloroacetic acid resin was first produced by Germany and the United States in 1929, but the earliest patent application was put forward by Bana company in Germany. The production methods of chloroacetate resin mainly include solvent polymerization, emulsion polymerization (such as WACKER's E 15/45M and E22/48A) and suspension polymerization (such as chloroacetate resin in Succar), and chloroacetate resin is mostly produced by suspension polymerization. At present, the main producers of chloroacetic acid resin are the United States, Germany and Japan, with an annual output of more than 200,000 tons. Typical use: 1, aluminum foil adhesive for drug packaging; 2. Indian iron coating; 3, electrical appliances, toys and other plastic shell painting; 4, metal (ship) anticorrosive coating; 5, pneumatic nail glue; 6, making adhesive with nail arranging glue; 7. Hot melt adhesive layer for gilding paper and gold foil. The characteristics of chloroacetate resin are as follows: 1. Completely soluble in organic solvents, such as ketones and esters. Very good solubility, with high toughness and corrosion resistance of vinyl chloride and strong viscosity and plasticity of vinyl acetate. 2. The resin coating is tasteless, odorless and transparent. 3. High chemical stability, not affected by acid and alkali. 4. Excellent moisture-proof performance. It's not easy, and it doesn't help to burn. 6. The thermoplasticity of resin makes the coating easy to heat seal. Hydroxyl modified resin can make the coating have the characteristics of quick drying. 7. Strong compatibility, compatible with alkyd resin, urea-formaldehyde resin, polyurethane, melamine resin and other coating resins. Improve the performance of the coating, such as adhesion, toughness, hardness and chemical resistance. 8. Excellent dispersibility for organic pigments such as magnetic powder and inorganic pigments such as azo dyes. 9. If the resin contains hydroxyl and carboxyl groups, the group characteristics can be improved by interaction with a bridging agent such as isocyanate. The functional group of hydroxyl group enables the resin to be crosslinked with thermosetting resin to obtain excellent chemical resistance (alcohol resistance) and water resistance.
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