Silicone rubber composition and production method for laminate of fluorosilicone rubber and silicone rubber
A silicone rubber composition, fluorosilicone rubber technology, applied in rubber layered products, chemical instruments and methods, layered products, etc., can solve problems such as insufficient adhesion between fluorosilicone rubber and silicone rubber
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[0130] The method for producing the silicone rubber composition and the laminate of the fluorosilicone rubber and the silicone rubber of the present invention will be described in detail using examples and comparative examples. In addition, this invention is not limited to these Examples. In addition, in the examples, unless otherwise specified, properties such as viscosity and plasticity are values at room temperature (25° C.). It should be noted that the viscosity (Pa·s) is a value measured using a rotational viscometer based on JIS K7117-1, and the kinematic viscosity (mm 2 / s) is a value measured by an Ubbelohde viscometer according to JIS Z8803, and the William plasticity is a value measured by a method prescribed in JIS K 6249.
reference example 1
[0132] Put into the kneading mixer: dimethylsiloxane / methylvinylsiloxane with a Williams plasticity of 165, both ends of the molecular chain are substantially terminated with dimethylvinylsiloxy groups, and part of it is terminated with hydroxyl groups. Alkanes copolymer (vinyl content = 0.07% by mass) 30.9 parts by mass; Williams plasticity is 160, both ends of the molecular chain are substantially terminated with dimethylvinylsilyloxy groups, and part of it is terminated with hydroxy groups Polysiloxane (vinyl content = 0.01% by mass) 29.2 parts by mass; Williams plasticity 160, dimethylsiloxane / methylvinylsiloxane copolymer terminated with hydroxyl groups at both ends of the molecular chain (Content of vinyl group=1.4 mass %) 4.2 mass parts; BET specific surface area is 300m 2 26.7 parts by mass of fumed silica / g; and a kinematic viscosity of 10mm 2 / s, 8.9 parts by mass of dimethylsiloxane oligomer terminated with hydroxyl groups at both ends of the molecular chain, mixed...
reference example 2
[0137] Put into the kneading mixer: dimethylsiloxane / methylvinylsiloxane with a Williams plasticity of 165, both ends of the molecular chain are substantially terminated with dimethylvinylsiloxy groups, and part of it is terminated with hydroxyl groups. Alkanes copolymer (vinyl content = 0.07% by mass) 30.9 parts by mass; Williams plasticity is 160, both ends of the molecular chain are substantially terminated with dimethylvinylsilyloxy groups, and part of it is terminated with hydroxy groups Polysiloxane (vinyl content = 0.01% by mass) 29.2 parts by mass; Williams plasticity 160, dimethylsiloxane / methylvinylsiloxane copolymer terminated with hydroxyl groups at both ends of the molecular chain (Content of vinyl group=1.4 mass %) 4.2 mass parts; BET specific surface area is 300m 2 26.7 parts by mass of fumed silica / g; and a kinematic viscosity of 10mm 2 / s, 8.9 parts by mass of dimethylsiloxane oligomer terminated with hydroxyl groups at both ends of the molecular chain, mixed...
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