1. Improving the water resistance to acrylic emulsion

Water -soluble is a very small particle polymerization dispersal. It also has the characteristics of emulsion and solution system, which can effectively improve water resistance

Although emulsifier plays an important role in the formation of the polymer beam and the stability of the emulsion after the aggregation, it is also an important cause of water resistance and decreased stickiness. The use of special emulsifiers or reduction of emulsifier can help improve the water resistance of the emulsion.

2. Improve acrylic adhesion intensity

(1) Increasing sticky resin

Adding adhesive resin can significantly increase the peeling strength and initial viscosity of the 180 ° peeling of voltage -sensitive adhesives. There are two ways to join. The first is to mix together. 

Use this method to increase the sticky resin must meet three basic requirements:

b. The glassization temperature of the sticky resin must be higher than the glass -based temperature of the polymer;

c. Increasing resin and the compatibility of the adhesive polymer to be added are better.

The second is that before the emulsion aggregation, the increased sticky resin was dissolved in the acrylic monument in advance, and then the emulsion aggregation was performed.

If the nuclear-shell aggregation is used. The nucleus of the polymer uses a harder monomer such as styrene, acrylin, and methyl acrylate, and the shell of the polymer uses a softer acrylate alkyl ester monomer. Internal agglomeration of adhesive. Special monomers, such as an appropriate amount of acrylate (Tg = 82 ° C) with an appropriate amount of co -agglomeration with acrylic mono, can further improve its comprehensive performance. In order to improve the adhesion of chain alkane materials, you can use monopolis such as ethyl acid alcohol, methexyl hydrogenation of methexyl acrylic, and acrylic rings, 2-phenoxyyl acrylate and other monomers. Polymerization, improve the moisture of non -polar adefness, and effectively improve adhesion.