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 e 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 e 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;">