Halogen-free low-smoke flame-retardant and arc-resistance rubber insulation material and preparation method

Abstract

The invention relates to a halogen-free low-smoke flame-retardant and arc-resistance rubber insulation material which has the properties of being halogen-free, low-smoke and flame-retardant as well as the property of being arc-resistance, and is low in cost, as well as a preparation method of the insulation material. In parts by mass, the insulation material consists of 100 parts of an ethylene-vinyl acetate copolymer, 80-120 parts of aluminum hydroxide, 20-30 parts of antimonous oxide, 30-40 parts of inorganic filler, 2-5 parts of a silane coupling agent, 1-3 parts of a vulcanizing agent, 3-6 parts of an accelerant, 8-15 parts of an activating agent, 2-5 parts of a dispersant and 2-5 parts of an anti-aging agent. The halogen-free low-smoke flame-retardant and arc-resistance rubber insulation material disclosed by the invention has the advantages that I. the insulation material is free from halogen, capable of avoiding harm to environment and human bodies caused by a conventional halogen-series fire retardant material, and is low in smoke amount, non-toxic, green and environment-friendly; II. the insulation material is not only excellent in flame retardance and arc resistance, but also good in mechanical property and processing performance, and the insulation material can completely reach the performance standard of an insulation material for flame-retardant and arc-resistance rubber jacketed cable; and III. compared with similar materials on the market, the halogen-free low-smoke flame-retardant and arc-resistance rubber insulation material has an advantage of being low in cost.

Description

technical field [0001] The invention relates to a halogen-free, low-smoke, flame-retardant and arc-resistant rubber insulating material with low cost and a preparation method thereof, belonging to electrical insulating polymers material manufacturing field. Background technique [0002] CN103923403A, titled "a halogen-free low-smoke flame-retardant rubber for wire and cable and its preparation method", which is made of the following raw materials in parts by weight: 100-150 parts of EPDM rubber, 45-45 parts of methyl vinyl silicone rubber 65 parts, nylon 1010 30-50 parts, EPDM rubber grafted maleic anhydride 15-25 parts, tert-butyl catechol 2-4 parts, terpene resin 5-10 parts, rosin glyceride 4-6 parts , 10-15 parts of tall oil, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2.5 parts of anti-aging agent 4010NA, 1-2 parts of anti-aging agent 1076, 2-3 parts of accelerator DTDM, accelerator 1-2 parts of DZ, 16-22 parts of magnesium hydroxide, 10-15 parts of mica po...

AI Technical Summary

Problems solved by technology

Its disadvantages: the use of magnesium hydroxide single-component flame retardant, the flame retardant effect is not good, and its arc resistance is not as good as aluminum hydroxide; EPDM rubber and methyl vinyl silicone rubber are expensive, adding If the amount is large, the cost of the prepared rubber material is very high