portant;">在包装应用领域,它可以与本身或其杜邦EVA树脂的低温热封,也可用于复合瓶盖衬垫;还可以制成吹塑、挤出、流延及共挤薄膜,或与其它树脂混合使用。 EVA用途***,与阻燃剂配合,可以做成低烟无卤或含卤的阻燃料;选择VA含量高的EVA做基料还可以做成耐油料;选择熔融指数适中的EVA,加入2~3倍于EVA的填充阻燃剂可以制得挤出工艺性能和价格较均衡的隔氧层
Elvax® 3130
Ethylene Vinyl Acetate Copolymer
DuPont Packaging & Industrial Polymers
产品说明:
DuPont™ Elvax® 3130 is an extrudable ethylene-vinyl acetate copolymer resin available in pellet form for use in conventional extrusion equipment designed to process polyethylene resins.
Composition
12 % 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:
基本信息 | |
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添加剂 |
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特性 |
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用途 |
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机构评级 |
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形式 |
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加工方法 |
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物理性能 | 额定值 | 单位制 | 测试方法 |
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比重 | 0.930 | g/cm³ | ASTM D792, ISO 1183 |
熔流率(熔体流动速率) (190°C/2.16 kg) | 2.5 | g/10 min | ASTM D1238, ISO 1133 |
醋酸乙烯含量 | 12.0 | wt% |
热性能 | 额定值 | 单位制 | 测试方法 |
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维卡软化温度 | 76.0 | °C | ASTM D1525, ISO 306 |
熔融峰值温度 | 95.0 | °C | ASTM D3418, ISO 3146 |
Freezing Point 1 | |||
-- | 75 | °C | ISO 3146 |
-- | 75 | °C | ASTM D3418 |
portant;">Elvax EVA树脂***应用于机械化包装、家具
portant;">制作、制鞋、无线装订、电子元件及日常用品粘
portant;">接,迅速成为热熔胶粘剂中应用广、用量大的一
portant;">种。 EVA 热熔胶凝聚力大,熔融表面张力小,对几乎
portant;">所有的物质均有热胶接力,且具有优良的耐药品性、
portant;">热稳定性、耐候性和电气性能,粘接迅速、应用面广、
portant;">无害、***等特点而被“绿色胶粘”,引起越来越多
portant;">