牌号简介 About |
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杜邦Elvax® 40L-03是一种工业用乙烯-醋酸乙烯共聚物树脂。熔融指数是一致的,因为树脂的分子量分布被控制在一个相对狭窄的范围内。这类共聚物的分子量很高,因此成品相对来说能够抵抗机械损伤和高温。与其他乙烯/醋酸乙烯酯共聚物相比,Elvax® 40L-03含有极低量的凝胶或高分子量聚合物,这会导致成品的不良特性。因为Elvax® 40L-03有点结晶,所以它是自由流动的,在搬运过程中不会发生质量问题。使用工业应用Z电线和电缆应用电线护套组成40重量%醋酸乙烯共聚单体含量热稳定剂:BHT抗氧化剂具有高分子量、高粘度应用ELVAX树脂可用于各种应用,包括成型、复合、挤压、粘合剂、密封剂和蜡共混物。有关特定应用的更多信息和属性,请参阅ELVAX工业应用网站上的等级选择器指南:http://ww2.dupont.com/elvax/en_us/tech_info/index.html ELVAX40L-03特别适合用于汽车点火和低烟电缆的护套化合物。以及可剥离的电力电缆半导体屏蔽。在这些应用中,相对窄的分子量分布和较低的凝胶特性有助于确保化合物将是一致的,并且最终产品将平滑地浮出表面。光滑光滑的表面是可取的,因为它们可以暗示质量,而均匀性可以提高长期性能。用ELVAX40-03制造的电力电缆半导电屏蔽也得益于它们的化合物的一致性和低凝胶含量。屏蔽层中的任何不一致都可能导致电缆故障。 DuPont™ Elvax® 40L-03 is an ethylene-vinyl acetate copolymer resin for use in industrial applications. The melt index is consistent because resin molecular weight distribution is controlled to within a relatively narrow range. The molecular weight is high for this family of copolymers, so finished products will be relatively resistant to mechanical damage and elevated temperatures. Compared with other ethylene/vinyl acetate copolymers, Elvax® 40L-03 contains extremely low amounts of gel, or high-molecular-weight polymer, that can cause undesirable characteristics in finished products. Because Elvax® 40L-03 is somewhat crystalline, it is free flowing and does not mass during handling. Uses Industrial Applications z Wire & Cable Applications Wire Jacketing Composition 40 % By Weight Vinyl Acetate comonomer content Thermal Stabilizer: BHT antioxidant Features High Molecular Weight, High Viscosity Applications Elvax® resins can be used in a variety of applications involving molding, compounding, extrusion, adhesives, sealants, and wax blends. For additional information and properties associated with specific applications, please refer to the Grade Selector Guides found on the Elvax® website for industrial applications: http://www2.dupont.com/Elvax/en_US/tech_info/index.html Elvax®40L-03 is especially well suited for use in jacketing compounds for automotive ignition and low-smoke cables, and as strippable semiconductive shields for power cables. In these applications, the relatively narrow molecular weight distribution and the low gel properties help ensure that compounds will be consistent and finished products will be smooth-surfaced. Smooth, glossy surfaces are desirable because they can imply quality, while uniformity can enhance long-term performance. Power cable semiconductive shields made with Elvax®40L-03 also benefit from the consistency of their compounds and low gel content. Any inconsistency in shields can lead to cable failure. |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
0.967 | g/cm³ | ASTM D792 |
密度 Density |
0.967 | g/cm³ | ISO 1183 |
熔体质量流动速率 Melt Flow Rate |
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190℃,2.16kg 190℃,2.16kg |
3.0 | g/10min | ISO 1133 |
190℃,2.16kg 190℃,2.16kg |
3.0 | g/10min | ASTM D1238 |
醋酸乙烯含量 Vinyl acetate content |
40.0 | wt% | |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
熔融峰值温度 Melting peak temperature |
℃ | ASTM D3418 | |
熔融温度 Melting temperature |
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DSC DSC |
℃ | ISO 3146 | |
冰点 freezing point 2 |
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℃ | ISO 3146 | |
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℃ | ASTM D3418 |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 DSC |
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