A kind of high temperature water vapor high temperature mixing silicone rubber and its preparation method and application
A technology of mixing silicone rubber and water vapor, which is applied in the field of silicone rubber, can solve problems such as poor water vapor resistance, and achieve the effects of improving compatibility, improving dispersibility, and excellent comprehensive performance
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Embodiment 1
[0032] Embodiment 1, a kind of high temperature resistant water vapor high temperature mixing silicone rubber
[0033] The high-temperature steam-resistant high-temperature mixing silicone rubber includes the following components and their mass parts: 70 parts of methyl vinyl silicone rubber raw rubber with vinyl end capping and vinyl molar content of 0.21%, vinyl end capping, 30 parts of methyl vinyl silicone rubber raw rubber with a vinyl molar content of 0.1%, 0.5 parts of silicone resin with a viscosity of 100mPa·s and a vinyl molar content of 3.5%, 25 parts of modified fumed silica, hexamethyl 4 parts of disilazane, 0.5 part of distilled water, 2 parts of heat-resistant agent; Described heat-resistant agent is made up of heat-resistant agent A and heat-resistant agent B by mass ratio 9:1; Described heat-resistant agent A is made up of particle diameter of 50nm nano-cerium oxide and 20nm nano-titanium dioxide have a mass ratio of 2:12, and the heat-resistant agent B is phe...
Embodiment 2
[0041] Embodiment 2, a kind of high temperature water vapor high temperature mixing silicone rubber
[0042]The high-temperature steam-resistant high-temperature mixing silicone rubber includes the following components and their mass parts: 30 parts of methyl vinyl silicone rubber raw rubber with vinyl end capping and vinyl molar content of 0.25%, vinyl end capping, 70 parts of methyl vinyl silicone rubber raw rubber with a vinyl molar content of 0.1%, 10 parts of silicone resin with a viscosity of 100mPa·s and a vinyl molar content of 5.5%, 40 parts of modified fumed silica, hexamethyl 10 parts of disilazane, 3 parts of distilled water, 10 parts of heat-resistant agent; Described heat-resistant agent is made up of heat-resistant agent A and heat-resistant agent B by mass ratio 5:3; Described heat-resistant agent A is made up of particle diameter of Nano cerium oxide with a particle size of 50nm and nano titanium dioxide with a particle size of 20nm are composed at a mass rati...
Embodiment 3
[0050] Embodiment 3, a kind of high temperature water vapor high temperature mixing silicone rubber
[0051] The high-temperature steam-resistant high-temperature mixing silicone rubber includes the following components and their parts by mass:
[0052] 60 parts of vinyl-terminated methyl vinyl silicone rubber raw rubber with vinyl molar content of 0.23%, 40 parts of vinyl-terminated methyl vinyl silicone rubber raw rubber with vinyl molar content of 0.1%, viscosity is 100mPa· s, 3 parts of silicone resin with a vinyl molar content of 4%, 30 parts of modified fumed silica, 6 parts of hexamethyldisilazane, 2 parts of distilled water, and 5 parts of heat-resistant agent; It is composed of heat-resistant agent A and heat-resistant agent B in a mass ratio of 7:2; the heat-resistant agent A is composed of nano-cerium oxide with a particle size of 50nm and nano-titanium dioxide with a particle size of 20nm in a mass ratio of 4:9, so The heat-resistant agent B is phenylvinyl silicon...
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