Mathematical Problems in Engineering / 2015 / Article / Tab 1

Research Article

Lifetime Analysis of Rubber Gasket Composed of Methyl Vinyl Silicone Rubber with Low-Temperature Resistance

Table 1

Material properties of VMQ.

Material propertiesExp. valueTest standard

Basic properties
 Hardness (IRHD)70ASTM D412
 Tensile strength (MPa)7.8
 Ultimate elongation (%)150
Heat resistance
 Change in hardness (%)0ASTM D573
 Change in tensile strength (%)−19.9
 Change in elongation (%)−7.6
Compression set (%)9.2ASTM D395, method B; 22 h, 150°C, plied
Compression set (%)33.6ASTM D395, method B; 1000 h, 150°C, plied
Fluid resistance
 Change in hardness (IRHD)−5ASTM D471, ASTM oil number 1; 70 h, 150°C
 Change in tensile strength (%)−10.1
 Change in elongation (%)−3.3
 Change in volume (%)3.4
Fluid resistance
 Change in hardness (IRHD)−10ASTM D471, ASTM oil number 3; 70 h, 150°C
 Change in volume (%)17.5
Low temp. brittlenessNo crackingASTM D2137, method A; −55°C, 3 min

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