Flame-retardant and drippage-free ceramization silicon rubber and preparation method thereof

Abstract

The invention relates to flame-retardant and drippage-free ceramization silicon rubber and a preparation method thereof. The silicon rubber is prepared from components in parts by weight as follows: 100 parts of organic silicon rubber compounds, 1 part to 10 parts of a vulcanizing agent, 100 parts to 150 parts of ceramization powder and 0 to 100 parts of other filler or auxiliaries, wherein the ceramization powder is prepared from raw materials in parts by weight as follows: 1 part to 120 parts of glass powder, 1 part to 20 parts of muscovite, 1 part to 200 parts of magnesium hydroxide, 1 part to 200 parts of aluminum hydroxide, 0.1 parts to 50 parts of boron compounds and 0.1 parts to 20 parts of phosphono-containing polymer compounds. The ceramization silicon rubber prepared with the method has advantages of good flame retardance and self-extinguishment performance; a ceramic layer formed after firing has good compactness and insulativity, external force resistance and the like. The preparation process is simple, raw materials are cheap, and accordingly the silicon rubber is expected to be applied to fields such as wires and cables, the electronic and electrical technology, aerospace engineering and the like and has quite good economic benefits and popularization value.

Description

technical field [0001] The invention relates to a flame-retardant, non-dripping, ceramizable silicone rubber and a preparation method thereof, belonging to the technical field of silicone rubber composite materials. Background technique [0002] Fire is extremely harmful to society. Especially in key fire prevention units such as hospitals, schools, buildings, coal mines, and chemical enterprises, once a fire occurs, it will bring great losses to people's lives and property. These painful lessons have made people realize the importance of fire resistance and fire resistance of building materials. During a fire, keeping power and communications flowing and undamaged buys valuable time for firefighters and self-help. Therefore, in the wire and cable industry, the development of refractory materials has always been the focus of research. [0003] With the development of industrial activities and the continuous increase of large-scale public buildings, silicone rubber has sho...

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Problems solved by technology

However, the above research has problems such as complex formula, difficult to control the formula ratio, and the hardness of the material after ceramicization needs to be improved.

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