Blend of fluorubber and silastic, and preparation thereof
A fluororubber and silicone rubber technology, applied in the field of fluororubber and silicone rubber blending materials and their preparation, can solve the problems of insufficiently uniform blending, poor mechanical properties, large phase domains, etc. The method is simple and feasible, and the effect of low compression set
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Example Embodiment
[0035] Example one
[0036] In this embodiment, the percentage of each component in the formula of the fluororubber and silicone rubber blend to the total weight of the formula is as follows:
[0037] Copolymer of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene 46.7%;
[0038] Methyl vinyl silicone rubber 11.7%;
[0039] Fluorine rubber grafted vinyl triethoxysilane 2.9%;
[0040] Magnesium oxide 1.8%;
[0041] Calcium hydroxide 3.5%;
[0042] Fumed white carbon black 17.5%;
[0043] Hydroxy fluorosilicone oil 1.8%;
[0044] Calcium fluoride 11.7%;
[0045]Dicumyl peroxide (DCP) 1.2%;
[0046] Triallyl isocyanurate (TAIC) 1.2%.
[0047] The preparation method of the blend of fluorine rubber and silicone rubber is as follows:
[0048] (1) Mix 100 parts by weight of fluororubber (terpolymer), 10 parts by weight of vinyl triethoxysilane and 1 part by weight of DCP on an open mixer, and add them to an internal mixer for mixing. The rotor speed is 60 revolutions / min, t...
Example Embodiment
[0055] Example two
[0056] In this embodiment, the percentage of each component in the formula of the fluororubber and silicone rubber blend to the total weight of the formula is as follows:
[0057] Vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene copolymer 29.2%;
[0058] Methyl vinyl silicone rubber 29.2%;
[0059] Fluorine rubber grafted with γ-methacryloxypropyltrimethoxysilane 4%;
[0060] Magnesium oxide 3%;
[0061] Calcium hydroxide 2.3%;
[0062] Fumed white carbon black 17.1%;
[0063] Hydroxy silicone oil 1.8%;
[0064] Calcium fluoride 11%;
[0065] Dicumyl peroxide (DCP) 1.2%;
[0066] Triallyl cyanurate (TAC) 1.2%.
[0067] The preparation method of the blend of fluorine rubber and silicone rubber is as follows:
[0068] (1) Put 100 parts by weight of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene copolymer, 8 parts by weight of γ-methacryloxypropyltrimethoxysilane and 1 part by weight of DCP on the open mill Mix evenly, add it to ...
Example Embodiment
[0075] Example three
[0076] In this embodiment, the percentage of each component in the formula of the fluororubber and silicone rubber blend to the total weight of the formula is as follows:
[0077] Copolymer of vinylidene fluoride and hexafluoropropylene 46.7%;
[0078] Methyl phenyl vinyl silicone rubber 11.7%;
[0079] Fluorine rubber grafted vinyl tri-tert-butylperoxysilane 2%;
[0080] Magnesium oxide 1.8%;
[0081] Calcium oxide 3.5%;
[0082] Fumed white carbon black 19.5%;
[0083] Hydroxy fluorosilicone oil 1.8%;
[0084] Diatomite 10%;
[0085] 2,5-Dimethyl-2,5-di-tert-butylperoxide hexane (bis-25) 1.5%;
[0086] Triallyl isocyanurate 1.5%.
[0087] The preparation method of the blend of fluorine rubber and silicone rubber is as follows:
[0088] (1) Mix 100 parts by weight of fluororubber (binary copolymer), 10 parts by weight of vinyl tritertbutylperoxysilane and 1 part by weight of DCP on an open mixer, and add them to the internal mixer for mixing. Mixing, the ro...
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