Ethylene Acrylic Copolymer Ethylene Acrylic Acid (EAA) is a thermoplastic and highly adhesive polymer. Due to the presence of carboxyl groups and the effect of hydrogen bonds, the crystallization of the polymer is inhibited, and the linearity of the main chain is suppressed. failure, thus improving the transparency and toughness of EAA, lowering the melting point and softening point. When MI is the same, with the increase of AA content, the transparency, toughness, adhesion, and environmental stress cracking resistance of EAA will increase; on the contrary, its rigidity, moisture vapor transmission, creep resistance, chemical resistance will increase. better. When the AA content is the same, with the increase of MI, the adhesion and processability of EAA will be better; on the contrary, its toughness and environmental stress cracking resistance will increase. Chinese name Ethylene Acrylic Copolymer foreign name EAA Ethylene Acrylic molecular weight 20.5% melting point 77.2℃ water soluble Not water soluble density 0.958 kg/m3 Exterior particle ellipse Application bond
EAA Ethylene Acrylic Ethylene Acrylic 1. Features: 1. Excellent adhesion, the materials that can be bonded to EAA are: aluminum and tin and other metals and their oxides, glass, cellulose, wood, leather, cellophane, protein, nylon, polyurethane, polyethylene, ethylene glycol Propylene rubber, etc. 2. Toughness and flexibility 3. Ease of processing
Application areas: EAA is widely used in packaging, powder coating, adhesives, hot melt adhesives, sealing materials, water-based solvents, etc. The following is a brief introduction: 1. Packaging: Extrusion coating to produce beverage cartons, toothpaste tubes, cable shielding layers, etc. At the same time, EAA also has protective effects such as tear resistance, puncture resistance, and corrosion resistance; 2. Powder coating: EAA powder can be sprayed on the surface of pipes, steel, non-woven fabrics and other materials as anti-corrosion materials; 3. Hot melt adhesive: EAA with high performance and high MI can produce hot melt adhesive for difficult-to-bond materials; 4. Water-based solvent: EAA with high AA content and high MI can be dissolved in hot alkaline solution under appropriate reaction conditions, and can be used to prepare water-based adhesives for clothing and other materials; 5. Degradable environmentally friendly materials: EAA can be blended with starch-based materials to produce degradable plastics.
Notice: EAA has good compatibility with a variety of fillers, pigments, dyes, etc., but with amines, epoxides and metal hydroxides, oxides, Decomposition of these materials during blending or co-extrusion of carbonates, etc., can lead to crosslinking of the polymer and other problems.