Elvax® resins can be used alone or to improve the flexibility, resilience and toughness of other resins. Depending on the demands of the particular application, they can be pigmented, foamed, filled, and/or crosslinked. In addition to their performance advantages, Elvax® resins are processed easily using conventional thermoplastic processing techniques, i.e., injection molding, extrusion and foaming, as well as rubber processing techniques, i.e., Banbury mixing, foam extrusion and molding.
Test specimens except for tensile impact where prepared by compression molding (ASTM D1928, procedure C). Tensile impact samples were injection molded.
Processing Information:
Molding and Extruding
Modified and unmodified Elvax® resins can be processed in conventional thermoplastic and rubber processing equipment. The temperature profile will vary with machine type, size and screw design as well as with part size, thickness or configuration.
Compounding
Elvax® resins are compatible with a variety of other resins and elastomers including polyethylene, polypropylene and styrene-butadiene rubber. Clays and other inorganic fillers can be added to improve abrasion resistance and lower cost.
Foaming Agents
Elvax® resins are readily foamed using chemical or physical blowing agents.
Crosslinking Agents
Peroxides such as "Di-Cup"† and "Vul-Cup"† dicumyl peroxide can be used to crosslink or vulcanize Elvax® resins.
(†Hercules Inc.)
Information provided by DuPont.
| 物理性能 | 额定值 (公制) | 额定值 (英制) | 测试方法 |
|---|---|---|---|
| 密度 | g/cc | lb/in³ | ASTM D792 |
| Vinyl Acetate Content | TGA | ||
| 化合物熔体指数 | g/10 min | g/10 min | ASTM D1238 |
| 机械性能 | 额定值 (公制) | 额定值 (英制) | 测试方法 |
|---|---|---|---|
| 肖氏硬度 (邵氏 A) | ASTM D2240 | ||
| 肖氏硬度 (邵氏 D) | ASTM D2240 | ||
| 极限抗拉强度 | MPa | psi | Type IV, crosshead speed 2 in/min; ASTM D638 |
| MPa @Temperature 49.0 °C | psi @Temperature 120 °F | Type IV, crosshead speed 2 in/min; ASTM D638 | |
| MPa @Temperature -20.0 °C | psi @Temperature -4.00 °F | Type IV, crosshead speed 2 in/min, at -20°C; ASTM D638 | |
| 伸长率 (断裂) | Type IV, crosshead speed 2 in/min; ASTM D638 | ||
| @Temperature -20.0 °C | @Temperature -4.00 °F | Type IV, crosshead speed 2 in/min, at -20°C; ASTM D638 | |
| @Temperature 49.0 °C | @Temperature 120 °F | Type IV, crosshead speed 2 in/min; ASTM D638 | |
| 弹性模量 | GPa | ksi | |
| GPa @Temperature -20.0 °C | ksi @Temperature -4.00 °F | ||
| 弯曲模量 | GPa | ksi | ASTM D790 |
| GPa @Temperature 49.0 °C | ksi @Temperature 120 °F | ASTM D790 | |
| GPa @Temperature -20.0 °C | ksi @Temperature -4.00 °F | ASTM D790 | |
| Flexural Stiffness | MPa | psi | |
| MPa | psi | ||
| 拉伸冲击强度 | kJ/m² | ft-lb/in² | At -20°C; ASTM D1822 |
| kJ/m² | ft-lb/in² | At 23°C; ASTM D1822 | |
| 永久压缩 | Method B, 10 days at 25°C; ASTM D395 | ||
| @Temperature 70.0 °C | @Temperature 158 °F | Method B, 22 hours; ASTM D395 |
| 热性能 | 额定值 (公制) | 额定值 (英制) | 测试方法 |
|---|---|---|---|
| 维卡软化温度 | °C | °F | ASTM D1525 |
| 脆化温度 | <= °C | <= °F | ASTM D762 |
| 加工性能 | 额定值 (公制) | 额定值 (英制) | 测试方法 |
|---|---|---|---|
| 加工温度 | °C | °F |
| 材料描述 | 测试方法 | |
|---|---|---|
| Cycle time | 0.5-2 minutes | Molding, equipment and part design dependent |
| Vinyl Acetate Content | 28 wt.% |