2024-10-31 Pageview:31
What are the characteristics of EAA emulsion? Ethylene acrylic acid (EAA) is a polymer with thermoplasticity and high adhesion. Due to the presence of carboxyl groups and the effect of hydrogen bonds, the crystallization of the polymer is suppressed and the linearity of the main chain is destroyed. Therefore, the transparency and toughness of EAA are improved, and the melting point and softening point are reduced.
What are the characteristics of EAA emulsion?
1. Good adhesion. Materials that can be bonded to EAA include metals such as aluminum and tin and their oxides, glass, cellulose, wood, leather, cellophane, protein, nylon, polyurethane, polyethylene, EPDM, etc.
2. Toughness and flexibility.
3. Easy to process.
What should be paid attention to EAA emulsion? EAA has good compatibility with a variety of fillers, pigments, dyes, etc. But it is compatible with amines, epoxides, metal hydroxides and oxides. When carbonates are blended or co-extruded, if these materials decompose, it will cause problems such as polymer cross-linking.
What is the physicochemical principle of EAA emulsion? Ethylene acrylic acid (EAA) is a polymer with thermoplasticity and high adhesion. Due to the presence of carboxyl groups and the effect of hydrogen bonding, the crystallization of the polymer is suppressed and the linearity of the main chain is destroyed. Therefore, the transparency and toughness of EAA are improved, and the melting point and softening point are reduced.
The low-temperature heat-sealing EAA emulsions developed by Tianshi Materials, LW-290 and Twax-7012 series, show excellent water resistance, adhesion, flexibility and optical purity, thermoplasticity and very high adhesion, as well as excellent tolerance and barrier properties to water and chemicals, and can be used in coatings, adhesives, base layer treatment and other fields.
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