Ethylene Vinyl Acetate Copolymer
DuPont Packaging & Industrial Polymers
产品说明：
DuPont™ Elvax® 3128-1 is an extrudable ethylene-vinyl acetate copolymer resin available in pellet form for use in conventional extrusion equipment designed to process polyethylene resins.
Composition
9.3 % By Weight Vinyl Acetate comonomer content
Thermal Stabilizer: 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 film equipment over a wide range of film thickness and blow-up ratios. It can also be co-extruded with a variety of other polymers. This resin is typically used as low temperature seal layer in co-extruded 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 |
| 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 |
| 比重 | 0.930 | g/cm³ | ASTM D792, ISO 1183 |
| 熔流率（熔体流动速率） (190°C/2.16 kg) | 2.0 | g/10 min | ASTM D1238, ISO 1133 |
| 醋酸乙烯含量 | 9.3 | wt% |
| 维卡软化温度 | 83.0 | °C | ASTM D1525, ISO 306 |
| 熔融峰值温度 | 99.0 | °C | ASTM D3418, ISO 3146 |
| Freezing Point 1 | |||
| -- | 83 | °C | ISO 3146 |
| -- | 83 | °C | ASTM D3418 |
| 料筒1区温度 | 135 | °C | |
| 料筒2区温度 | 160 | °C | |
| 料筒3区温度 | 185 | °C | |
| 料筒4区温度 | 185 到 210 | °C | |
| 料筒5区温度 | 185 到 210 | °C | |
| 接头温度 | 185 到 210 | °C | |
| 熔体温度 | 160 到 235 | °C | |
| 口模温度 | 185 到 210 | °C |
