Acrylic emulsion is a kind of polymer emulsion adhesive, generally made by copolymerization of acrylate and methacrylate or by adding other monomers such as vinyl acetate. Acrylic emulsion has particularly good weather resistance, water resistance and aging resistance, and has excellent oxidation resistance and large elongation at break. It is widely used in packaging, coatings, construction, textile and leather industries.
As people pay more and more attention to environmental protection, businesses have begun to choose environmentally friendly chemicals. Emulsion adhesives have gradually become The development trend of adhesives in the future.
The advantages of acrylic emulsion are:
1. Water is used as the dispersion medium, no organic solvents are used, and it is non-toxic or flammable. It is an environmentally friendly product;
2. There are many types of acrylic monomers, and the functional groups such as ester groups, carboxyl groups, and hydroxyl groups have strong polarity. It is easy to be emulsion copolymerized with other monomers such as vinyl acetate, styrene, vinyl chloride, etc. Various performance emulsion adhesives;
3. Acrylic polymers have excellent color retention, light resistance and weather resistance, are not easy to oxidize, and are not sensitive to the degradation of ultraviolet rays;
4. The adhesive strength and shear strength of acrylic polymer are both high.
Acrylic emulsion adhesives can be classified in two ways. According to the product usage classification, it can be divided into: internal wall emulsion, external wall emulsion, elastic emulsion, waterproof emulsion, closed emulsion and so on. According to the composition of the product, it can be divided into: pure acrylic emulsion, silicone acrylic emulsion, styrene acrylic emulsion, vinegar acrylic emulsion and so on.
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