Anti-cracking silicone rubber cable material and preparation method thereof
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A technology of silicone rubber and cable materials, applied in rubber insulators, organic insulators, etc., can solve problems such as easy cracking of cable materials, and achieve the effect of improving crack resistance and mechanical properties
Inactive Publication Date: 2013-12-25
JING FENG GRP
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[0003] In order to solve the problem that the existing cable materials are easy to crack, the invention provides a silicone rubber cable material with excellent comprehensive performance and excellent crack resistance and a preparation method thereof
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[0012] An anti-cracking silicone rubber cable material, made of the following raw materials by weight (kg): methyl vinyl silicone rubber 70, nylon 6628, isotactic polypropylene 12, magnesium hydroxide 16, sodium molybdate 8, melamine cyanurate Salt 10, magnesium oxide 2, diisononyl phthalate 10, methyl tin mercaptide 2, polyethylene wax 7, antioxidant BHT1, vulcanizing agent DTBP1, accelerator TETD1.5, anti-scorch agent CTP0.8 , carbon black N66018, vermiculite powder 16, nano-alumina 8, composite filler 5;
[0013] The preparation method of the composite filler is as follows: a. Take the raw materials of the following weight (kg): kaolin 10, celestite 10, corundum powder 4, nano-aluminum nitride 6, N-2-(aminoethyl)-3-ammonia Propyltrimethoxysilane 2, triallyl cyanurate 1.5, nano-aluminum hydroxide 10, zinc stearate 2.5, antioxidant ODA 1.5; b, calcining kaolin and lapis lazuli at 520°C for 4 hours , after cooling to room temperature, add an appropriate amount of water togeth...
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Abstract
The invention discloses an anti-cracking silicone rubber cable material and a preparation method of the material. The anti-cracking silicone rubber cable material is prepared by the following raw materials in parts by weight: 65-75 parts of methyl vinyl silicone rubber, 20-30 parts of nylon 66, 10-15 parts of isotactic polypropylene, 15-20 parts of magnesium hydrate, 5-10 parts of sodium molybdate, 8-12 parts of melamine cyanurate, 2-3 parts of magnesium oxide, 10-15 parts of diisononyl phthalate, 1.5-2.5 parts of methyl tin mercaptide, 5-8 parts of polyethene wax, 0.5-1.5 parts of antioxidant BHT (butylated hydroxytoluene), 0.8-1.2 parts of valcanizer DTBP (di-t-butyl peroxide), 1-2 parts of accelerator TETD (tetraethylthiuram disulfide), 0.5-1.5 parts of scorch retarder CTP (cytidine triphosphate), 15-20 parts of carbon black N660, 12-18 parts of vermiculite powder, 5-10 parts of nano aluminum oxide and 4-7 parts of composite packing. The cable material has excellent cracking resistance and mechanical properties, is free from cracking in a low temperature impact test at -30 DEG C, a high temperature impact test at 120 DEG C and a bending test, can be applied to harsh environments such as low temperature, salt mist, wetness, hot and mould, and is durable in use.
Description
technical field [0001] The invention relates to a cable material and a preparation method thereof, in particular to an anti-cracking silicone rubber cable material and a preparation method thereof. Background technique [0002] In recent years, with the vigorous development of my country's network, urban rail transit, railways, building construction and other projects, the demand for radio frequency cables such as mobile communication radio frequency cables, leaky cables, and railway signal cables has risen sharply, prompting low-smoke, halogen-free and flame-retardant The use of cable materials is increasing rapidly. Although the low-smoke, halogen-free and flame-retardant properties of cable materials have been greatly improved, the problem of easy cracking of cable materials has not been solved, especially in low temperature environments. Contents of the invention [0003] In order to solve the problem that existing cable materials are easy to crack, the invention provid...
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