Rubber sheath material used by self-regulating electric tracing band
A technology of electric heating cable and rubber sheath, applied in the field of rubber, can solve the problems of not meeting the demand, heat transfer, hardness and wear resistance can not meet the demand, etc., to increase the density, enhance the mechanical and thermal conductivity, resist Good grinding effect
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[0014] Example 1
[0015] A kind of rubber sheath material for self-regulating temperature electric heating cable. Its raw materials by weight include: 70 parts of EPDM rubber, 50 parts of carboxyl nitrile rubber, 25 parts of neoprene, and 3 parts of dicumyl peroxide , 2,5-Dimethyl-2,5-bis(tert-butylperoxy)-3-hexyne 2 parts, triallyl isocyanurate 2 parts, sodium dichromate 0.5 parts, modified 70 parts of glass fiber, 20 parts of graphite powder, 15 parts of high wear-resistant carbon black, 10 parts of silicon carbide, 16 parts of kaolin, 20 parts of copper powder, antioxidant AT-2152 parts, 2 parts of sodium lignosulfonate, o-benzene 2 parts of diisodecyl dicarboxylate, 1 part of polyvinyl butyral, 2 parts of liquid coumarone resin, 0.8 parts of tributyl citrate.
Example Embodiment
[0016] Example 2
[0017] A kind of rubber sheath material for self-regulating temperature electric heating cable. Its raw materials by weight include: 100 parts of EPDM rubber, 20 parts of carboxylated nitrile rubber, 30 parts of neoprene, and 1 part of dicumyl peroxide , 2,5-Dimethyl-2,5-bis(tert-butylperoxy)-3-hexyne 6 parts, triallyl isocyanurate 1 part, sodium dichromate 2 parts, modified 50 parts of glass fiber, 40 parts of graphite powder, 5 parts of high wear-resistant carbon black, 20 parts of silicon carbide, 8 parts of kaolin, 35 parts of copper powder, antioxidant AT-2151 parts, 6 parts of sodium lignosulfonate, o-benzene 1 part of diisodecyl dicarboxylate, 2 parts of polyvinyl butyral, 1 part of liquid coumarone resin, 1.5 parts of tributyl citrate.
Example Embodiment
[0018] Example 3
[0019] A kind of rubber sheath material for self-regulating temperature electric heating cable. Its raw materials include, by weight, 86 parts of EPDM, 30 parts of carboxylated nitrile rubber, 28 parts of neoprene, and 2 parts of dicumyl peroxide. , 2,5-Dimethyl-2,5-bis(tert-butylperoxy)-3-hexyne 4.5 parts, triallyl isocyanurate 1.2 parts, sodium dichromate 1.6 parts, modified 60 parts of glass fiber, 34 parts of graphite powder, 8 parts of high wear-resistant carbon black, 17 parts of silicon carbide, 10 parts of kaolin, 30 parts of copper powder, antioxidant AT-2151.2 parts, 5 parts of sodium lignosulfonate, o-benzene 1.2 parts of diisodecyl dicarboxylate, 1.6 parts of polyvinyl butyral, 1.5 parts of liquid coumarone resin, 1.3 parts of tributyl citrate.
[0020] The modified glass fiber is prepared by the following process: under the protection of nitrogen, mix 10 parts of silane coupling agent KH550, 80 parts of deionized water, and 5 parts of glass fiber by...
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