苏州海财塑化有限公司
Elvax® 40L-03
乙烯醋酸乙烯共聚物
DuPont Packaging & Industrial Polymers
产品说明:
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.
| 产品说明 |
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| 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. |
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| 总体 |
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已商用：当前有效 |
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| 机构评级 |
FDA 21 CFR 177.1350 (d) |
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| 形式 |
粒子 |
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| 物理性能 |
额定值 |
单位制 |
测试方法 |
| 比重 |
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0.969 |
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ASTM D792 |
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0.967 |
g/cm3 |
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 |
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乙烯-醋酸乙烯共聚物简称EVA，一般醋酸乙烯（VA）含量在5%～40%。与聚乙烯相比，EVA[1]由于在分子链中引入了醋酸乙烯单体，从而降低了高结晶度，提高了柔韧性、抗冲击性、填料相溶性和热密封性能，被广泛应用于发泡鞋料、功能性棚膜、包装膜、热熔胶、电线电缆及玩具等领域。
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