tailieunhanh - Materials Selection Deskbook 2011 Part 14

Tham khảo tài liệu 'materials selection deskbook 2011 part 14', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Appendix B General Properties and Data on Elastomers and Plastics 183 Table B17 Chemical and Oil Resistance of Silicone Rubber Chemical or medium Percent volume change Fluorosilicone rubber FVMQ Silicone rubber VMQ Acid 7 days 24 C 10 Hydrochloric 1 2 Hydrochloride 8 15 10 Sulfuric Nil 5 10 Nitric 1 8 Alkali 7 days 24 C 10 Sodium hydroxide Nil Nil 50 Sodium hydroxide 1 9 Solvent 24 hr 24 C Acetone 180 15 Ethyl alcohol 5 9 Xylene 20 Over 150 JP4 fuel 10 Over 150 Butyl acetate Over 150 Over 150 Oils ASTM No. 3 7 days 149 C 6 20 50 Turbo oil 15 Mil L07808 1 day 177 C 8 30 Dimethyl siloxane 500 cS 14 days 205 C Nil Swells deteriorates Table Summary of Solid EP and EPDM Worldwide Products Mooney Molecular Oil viscosity weight Trade Type Grade content 1 8 Ethylene Diene Diene distribution Manufacturer name elastomer designation phr at 127 c content type content classification Exxon Chemical Vistaion Copolymers V-504 25 Low Medium V-404 33 Very low Very broad MD-78-5 26 Very low Narrow MD-80-6 29 High Narrow V-808 40 Very high Narrow V-606 - 57 Low Medium MD805-1 33 Very high Narrow Terpolymers MD-7504-1 30 Low ENB Medium Narrow V-2504 24 Low ENB Medium Very broad V-2200 30 Low ENB Low Broad V-4507 45 Low ENB Medium Medium V-7507 50 Low ENB Medium Narrow V-2555 50 Medium ENB Low Broad V-3708 50 High ENB Medium Broad V-7000 55 High ENB Medium Narrow V-4608 60 Low ENB Medium Broad V-7509 68 Low ENB Medium Narrow V-5600 70 Medium ENB Medium Broad V-5630 30 35 Medium ENB Medium Broad V-3666 75 52 Medium ENB Medium Medium N-3TT1 75 45 High ENB Medium Medium V-6505 46 Low ENB High Narrow V-6630 30 33 Medium ENB High Broad 184 Materials Selection Deskbook Appendix B General Properties and Data on Elastomers and Plastics 185 - 4- C5 05 05 cd 05 cd cd cd cd cd cd cd cd .cd s .d3 cd .cd cd .cd cd zzzzzzzzzzzzzz z z zzzz I I I . . . s s s s e 5 s s 5 s 5 s 5 s s s e s s s s g g g g w M M w M w M M M M M w w w M w w I I I ế .3 .gp Q s J a . e íậậl ỉiiỉ OipWlim s K K s I .05