公司信息及水印
牌号简介 About |
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最新的制造技术使AEM级聚合具有优化的结构和化学成分,这比现有标准杜邦VAMAC弹性体提供了显著的改进。这些级别被指定并作为vamac-ultra销售,为目标应用程序的可处理性、性能和客户价值提供真正的步骤变更改进。Vamac® Ultra IP(开发名称:VMX-3040)是第一个商业化的超家族产品。在开发阶段,一个目标是确定在注塑过程中性能比Vamac G有所改善的产品,以减少模具清洗的频率。与标准AEM等级相比,Vamac® Ultra IP 27的高粘度能更好地混合化合物,并提高化合物的绿色强度,有助于避免挤压过程中的塌陷。优化的聚合物结构确保了物理性能的提高,从而改善了密封件、阻尼器和挤压软管等橡胶部件的性能。低磨损值允许在动态密封中长期使用Vamac® Ultra IP。Vamac® Ultra IP的最佳物理性能是在硬度范围为50至90邵尔A的橡胶零件中获得的。使用Vamac® Ultra IP比使用适当的配合物的标准AEM更容易实现该硬度范围的扩展。Vamac® Ultra IP结合了1000小时(六周)内175°C的耐干热性和对汽车润滑油的良好耐受性。最高温度200°C的暴露时间可达4天。同时-31°C的热失重提供了很好的低温灵活性。良好的压缩永久变形和压缩应力松弛特性使Vamac® Ultra IP成为密封应用的最佳选择。在汽车曲轴箱通风系统和风道中具有良好的抗窜气性(热空气、酸、油和汽油烟雾),加上增加的动态阻力是Vamac® Ultra IP的附加属性。像其他等级的VAMAC一样,Vamac® Ultra IP是无卤的。 The latest manufacturing technology allows polymerization of AEM grades with optimized structure and chemical composition, which provides significant improvements over the existing standard DuPont ™ Vamac® elastomers. These grades, designated and sold as Vamac® Ultra, provide true step-change improvement in processability, performance and customer value for targeted applications. Vamac® Ultra IP (developmental name VMX-3040) is the first of the Ultra family products to be commercialized. During the development phase, a goal was to identify a product having improved performance in injection molding processes compared to Vamac® G to reduce the frequency of mold cleaning. The high viscosity of Vamac® Ultra IP compared to standard AEM grades results in better mixing as well as increased green strength of compounds, and helps to avoid collapse during extrusion processes. The optimized polymer structure ensures gains in physical properties resulting in improved performance of rubber parts such as seals, dampers and extruded hoses. Low abrasion values may allow extended use of Vamac® Ultra IP in dynamic seals. The best physical properties of Vamac® Ultra IP are obtained in rubber parts having a hardness range between 50 and 90 Shore A. Extensions of this hardness range may be more easily achieved with Vamac® Ultra IP than standard AEM using appropriate compounding. Vamac® Ultra IP combines dry heat resistance of 175 °C over a period of 1000 h (six weeks) with very good resistance to automotive lubricants. Exposure of peak temperatures of 200 °C are possible for up to four days. At the same time, the Tg of -31 °C provides very good low temperature flexibility. Good compression set and compressive stress relaxation properties make Vamac® Ultra IP an excellent choice for sealing applications. Good resistance to Blow-By (hot air, acids, oil and petrol fumes), present in automotive crankcase venting systems and air ducts combined with increased dynamic resistance are additional attributes of Vamac® Ultra IP. Like every other grade of Vamac® , Vamac® Ultra IP is halogen-free. |
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 |
门尼粘度 Mooney viscosity |
|||
ML 1+4,100℃ ML 1+4,100℃ |
25 到 33 67 | MU | ASTM D1646 |
弹性体 elastic body |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
拉伸强度 tensile strength |
ASTM D412 | ||
100% 应变 100% strain |
7.10 | MPa | ASTM D412 |
100% 应变 100% strain 2 |
2.60 | MPa | ASTM D412 |
100% 应变,150℃ 100% strain, 150 ℃ 3 |
2.60 | MPa | ASTM D412 |
100% 应变,160℃ 100% strain, 160 ℃ 4 |
2.20 | MPa | ASTM D412 |
拉伸应变 Tensile strain |
ASTM D412 | ||
断裂 fracture |
% | ASTM D412 | |
断裂 fracture 2 |
% | ASTM D412 | |
撕裂强度 tear strength |
ISO 34-1 | ||
-- -- |
kN/m | ISO 34-1 | |
-- -- 5 , 2 |
kN/m | ISO 34-1 | |
压缩形变 Compression deformation |
|||
23℃,94 hr 23℃,94 hr |
% | VW PV3307 | |
150℃,70 hr 150℃,70 hr 6 |
% | ASTM D395 | |
150℃,94 hr 150℃,94 hr |
% | VW PV3307 | |
150℃,168 hr 150℃,168 hr 6 |
% | ASTM D395 | |
150℃,168 hr 150℃,168 hr 2 |
% | ASTM D395 | |
175℃,70 hr 175℃,70 hr 6 |
% | ASTM D395 | |
175℃,70 hr 175℃,70 hr 2 |
% | ASTM D395 | |
175℃,1008 hr 175℃,1008 hr 6 |
% | ASTM D395 | |
190℃,70 hr 190℃,70 hr 6 |
% | ASTM D395 | |
老化性能 Aging performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
空气中拉伸强度的变化率 The rate of change in tensile strength in air |
ASTM D573 | ||
175℃,504 hr 175℃,504 hr |
% | ASTM D573 | |
100% 应变,175℃,504 hr 100% strain, 175 ℃, 504 hr |
% | ASTM D573 | |
190℃,168 hr 190℃,168 hr |
% | ASTM D573 | |
100% 应变,190℃,168 hr 100% strain, 190 ℃, 168 hr |
% | ASTM D573 | |
空气中极限伸长率的变化率 The rate of change in ultimate elongation in air |
ASTM D573 | ||
175℃,504 hr 175℃,504 hr |
% | ASTM D573 | |
190℃,168 hr 190℃,168 hr |
% | ASTM D573 | |
空气中硬度计硬度的变化率 The rate of change in hardness of a hardness tester in the air |
ASTM D573 | ||
邵氏 A,175℃,504 hr Shaw A, 175 ℃, 504 hr |
ASTM D573 | ||
邵氏 A,190℃,168 hr Shaw A, 190 ℃, 168 hr |
ASTM D573 | ||
拉伸强度的变化率 The rate of change in tensile strength |
ASTM D471 | ||
150℃,168 hr,Dexron® VI 150℃,168 hr,Dexron® VI |
% | ASTM D471 | |
160℃,504 hr,Lubrizol OS 206304,5W40 160℃,504 hr,Lubrizol OS 206304,5W40 |
% | ASTM D471 | |
极限伸长率的变化率 Change rate of ultimate elongation |
ASTM D471 | ||
150℃,168 hr,Dexron® VI 150℃,168 hr,Dexron® VI |
% | ASTM D471 | |
160℃,504 hr,Lubrizol OS 206304,5W40 160℃,504 hr,Lubrizol OS 206304,5W40 |
% | ASTM D471 | |
邵氏硬度的变化率 The rate of change in Shore hardness |
ASTM D471 | ||
支撐 A,150℃,168 hr,在 Dexron® VI 中 Support A, 150 ℃, 168 hr, at Dexron ® In VI |
ASTM D471 | ||
支撐 A,160℃,504 hr,在 Lubrizol OS 206304、5W40 中 Support A, 160 ℃, 504 hr, in Lubrizol OS 206304, 5W40 |
ASTM D471 | ||
质量变化率 Quality change rate |
ASTM D471 | ||
150℃,168 hr,在 Dexron® VI 中 150 ℃, 168 hr, at Dexron ® In VI |
% | ASTM D471 | |
160℃,504 hr,在 Lubrizol OS 206304、5W40 中 160 ℃, 504 hr, in Lubrizol OS 206304, 5W40 |
% | ASTM D471 | |
体积变化 Volume change |
ASTM D471 | ||
150℃,168 hr,Dexron® VI 150℃,168 hr,Dexron® VI |
% | ASTM D471 | |
160℃,504 hr,Lubrizol OS 206304,5W40 160℃,504 hr,Lubrizol OS 206304,5W40 |
% | ASTM D471 | |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
玻璃化转变温度 Glass transition temperature |
℃ | ASTM D7426 | |
补充信息 Supplementary information |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
MDR MDR 7 |
ASTM D5289 | ||
MH:180℃ MH:180℃ |
dNm | ASTM D5289 | |
ML:180℃ ML:180℃ |
dNm | ASTM D5289 | |
Peak Rate:180℃ Peak Rate:180℃ |
dNm/min | ASTM D5289 | |
tc10:180℃ tc10:180℃ |
sec | ASTM D5289 | |
tc50:180℃ tc50:180℃ |
sec | ASTM D5289 | |
tc90:180℃ tc90:180℃ |
sec | ASTM D5289 | |
Ts2:180℃ Ts2:180℃ |
sec | ASTM D5289 | |
Mooney Scorch(T5,121℃) Mooney Scorch(T5,121℃) |
min | ASTM D1646 | |
Resilience Resilience |
% | ISO 4662 | |
挥发性 volatility |
wt% | 内部方法 | |
机械性能 MECHANICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
邵氏硬度 Shore hardness |
ASTM D2240 | ||
邵氏 A Shaw's A |
ASTM D2240 | ||
邵氏 A,1 秒,6.00 mm Shore A, 1 second, 6.00 mm 2 |
ASTM D2240 | ||
抗磨损性 abrasion resistance |
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Sandpaper Sandpaper |
mm³ | ISO 4649 | |
特殊值 Special value |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
屈服 yield |
MPa | ASTM D412 | |
屈服 yield 2 |
MPa | ASTM D412 |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 Results on Heat Ageing of Three 60 Shore A Compounds |
3 168 hrs, Ageing in Petro Canada Dexron® VI |
4 504 hrs, Ageing in Lubrizol® OS 206304 , 5W40 |
5 A方法,裤形试样 |
6 12 mm molded disks |
7 0.5deg / 12 min |
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