Ethylene Vinyl Acetate Copolymer
DuPont Packaging & Industrial Polymers
产品说明:
DuPont™ Elvax® 3182-2 is an extrudable ethylene-vinyl acetate copolymer resin available in pellet form for use in conventional extrusion e designed to process polyethylene resins.
Composition
28 % By Weight Vinyl Acetate comonomer content
Thermal Stabilizer: non-BHT antioxidant
Applications
This resin is designed to provide a low temperature heat seal to itself or many other materials commonly used in flexible packaging applications. The melt properties of this resin allow it to be processed on blown or cast and cast coextrusion film e over a wide range of line speeds and film thicknesses. It can also be coextruded with a variety of other polymers. This resin is typically used as a low temperature seal layer in coextruded films.
物性信息:
添加剂 | 抗氧化性 热稳定剂 |
特性 | 低温热封性 共聚物 抗氧化性 良好的热封性 良好的柔韧性 热稳定性 食品接触的合规性 |
用途 | 包装 薄膜 流延薄膜 |
机构评级 | FDA 21 CFR 177.1350(a)(1) |
形式 | 粒子 |
加工方法 | 薄膜挤出 吹塑薄膜 共挤薄膜 共挤出成型 流延薄膜 |
比重 | 0.950 | g/cm³ | ASTM D792, ISO 1183 |
熔流率(熔体流动速率) (190°C/2.16 kg) | 3.0 | g/10 min | ASTM D1238, ISO 1133 |
醋酸乙烯含量 | 28.0 | wt% |
维卡软化温度 | 49.0 | °C | ASTM D1525, ISO 306 |
熔融峰值温度 | 72.0 | °C | ASTM D3418, ISO 3146 |
Freezing Point 1 | |||
-- | 48 | °C | ASTM D3418 |
-- | 48 | °C | ISO 3146 |
熔体温度 | < 230 | °C |
EVA中文名称乙烯醋酸乙烯共聚物,俗称橡皮胶。优点:
1、良好的柔软性、橡胶般的弹性;
2、在-50℃下仍能够具有较好的可挠性;
3、透明性和表面光泽性好、化学稳定性良好、抗老化和耐臭氧强度好、无毒性;
4、与填料的掺混性好,着色和成型加工性好。
用途:1、薄膜、薄片及层合制品:具有密封性粘合性、柔软性、强韧性、紧缩性,适合弹性包装薄膜,热收缩薄膜,农用薄膜,
食品包装薄膜,层合薄膜,可以用于做聚烯烃层压薄膜的中间层等;
2、一般用品:具有柔韧性,抗环境应力开裂性,耐气候性好的优点,适合工业用材料有电力电线绝缘皮包,家用电器配件,窗密封材料等;
3、日用杂货类:运动用品、玩具、坐垫、束带、密封容器盖、EVA橡胶足球等;
4、汽车配件:避震器、挡泥板、车内外装饰配件等;5、发泡制品:加压发泡有泡沫塑料拖鞋、凉鞋、建筑材料等;注塑发泡有各种工业零部件,女用鞋底,热熔粘合剂等。