法国阿科玛EVA 28-05 28-25颗粒 EVA 28-05阿科玛EVA 28-05收藏 EVA 28-05阿科玛EVA 28-05 EVA 28-05阿科玛EVA 28-05 EVA 28-05阿科玛EVA 28-05 EVA 28-05阿科玛EVA 28-05 供应 法国进口>阿科玛 EVATANE系列EVA(乙烯-醋酸乙烯共聚物) 部分型号如下: Arkema Evatane® 1090 VN 3 Ethylene Vinyl Acetate Arkema Evatane® 1350 VN 5 Ethylene Vinyl Acetate Arkema EVATANE® 18-150 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 18-500 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 20-20 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 24-03 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 28-03 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 28-05 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 28-150 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 28-25 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 28-40 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 28-420 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 28-800 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 33-15 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 33-25 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 33-400 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 33-45 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 40-55 Copolymer Ethylene - Vinyl Acetate Arkema EVATANE® 42-60 Copolymer Ethylene - Vinyl Acetate 阿科玛EVA 28-05 性能影响参数 EVA的特点是具有良好的柔软性,橡胶般的弹性,在-50℃下仍然具有较好的可挠性,透明性和表面光泽性,化学稳定性良好,抗老化和耐臭氧强度好,无毒性。与填料的掺混性、着色性和成型加工性好。 熔融指数(MI)一定,VA的含量一定,溶指(MI)增加,软化点下降,加工性和表面光泽改善,但强度会下降,否则,随着MI的降低则分子量增大,冲击性能和抗环境应力开裂性能提高。乙酸乙烯(VA)含量越高,其弹性、柔软性、相溶性、透明性等也越高;当VA的含量减少的时候,它的性能接近于聚乙烯(PE),刚性增高,耐磨性、电绝缘性提高。 阿科玛EVA 28-05 应用领域 乙烯-醋酸乙烯共聚物,简称EVA。一般醋酸乙烯(VA)的含量在5%-40%,与聚乙烯(PE)相比,EVA由于在分子链中引入醋酸乙烯单体,从而降低了高结晶度,提高了韧性、抗冲击性、填料相溶性和热密封性能,被广泛用于发泡鞋材、功能性棚膜、包装模、热熔胶、电线电缆及玩具等领域。