Materials Selection Deskbook 2011 Part 13 ppt

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Appendix B: General Properties and Data on Elastomers and Plastics 175 Table B.10 True Stress at Break of Selected Melt-Mixed Rubber-Plastic Blendsa

aThe compositions were 6040 and 5050 rubber-plastic weight ratio The stress at the break is the product of the ultimate extension ratio

Table B.ll Properties of Various Types of Elastomer Compositions

Partially Completely

propylene propylene Neoprene thermoplastic blend" blendb vulcanizate elastome?

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Shore A hardness

Tensile strength (MPa)

Ultimate elongation (%)

Volume swell in ASTM

No 3 Oil (74 hr at

100°C) (%)

Compression set (method

B: 22 hr at l00OC) (%)

Use temperature ("C)

Type of processing"

aTPR-1700 (Uniroyal)

bSantoprene (Monsanto)

'Hytrel (DuPont)

dTP, thermoplastic; CV, conventional vulcanizate

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