1. The environment-friendly flame-retardant cable sheath rubber is characterized in that: the rubber material comprises 12-16 parts of chlorinated polyethylene A type, 18-24 parts of chlorinated polyethylene B type, 3-4 parts of magnesium oxide, 13-15 parts of magnesium hydroxide, 0.5-1 part of calcium stearate, 0.1-0.3 part of stearic acid, 0.5-1 part of refined paraffin, 3-5 parts of flame retardant, 4-6 parts of white carbon black, 3.5-4.5 parts of nano kaolin, 4-6 parts of N550 carbon black, 0.2-0.6 part of silane coupling agent, 10-14 parts of chlorinated paraffin, 0.5-1 part of vulcanizing machine, 0.5-1 part of cross-linking agent, 0.5-1 part of plasticizer and 0.5-1.5 parts of antimony trioxide.

2. The environment-friendly flame-retardant cable sheath rubber as claimed in claim 1, wherein: the rubber material comprises 14.3 parts of chlorinated polyethylene A type, 21.5 parts of chlorinated polyethylene B type, 3.6 parts of magnesium oxide, 14.3 parts of magnesium hydroxide, 0.72 part of calcium stearate, 0.22 part of stearic acid, 0.72 part of fully-refined paraffin, 4 parts of flame retardant, 5.4 parts of white carbon black, 3.6 parts of nano kaolin, 4.8 parts of N550 carbon black, 0.4 part of silane coupling agent, 12 parts of chlorinated paraffin, 0.85 part of vulcanizing machine, 0.83 part of crosslinking agent, 0.7 part of plasticizer and 1 part of antimony trioxide.

3. The environment-friendly flame-retardant cable sheath rubber as claimed in claim 1, wherein: the flame retardant was CM 80A.

4. The environment-friendly flame-retardant cable sheath rubber as claimed in claim 1, wherein: the silane coupling agent adopts vinyl tri (2-methoxyethoxy) silane, the vulcanizing machine is dicumyl peroxide, the crosslinking agent is triallyl isocyanurate, and the plasticizer is dioctyl phthalate.

Background

The wire and cable industry, although only a complete set of industries, occupies the value of 1/4, which is the chinese electrical industry. The product has various types and wide application range, relates to the industries of electric power, construction, communication, manufacturing and the like, and is closely related to each department of national economy. The cable sheath is mainly used for protecting the cable from being damaged by the outside, generally needs to be applied to various severe environments, particularly flammable environments, and is huge in direct loss or indirect loss once the cable is burnt.

Disclosure of Invention

The invention aims to provide environment-friendly flame-retardant cable sheath rubber, which is prepared by blending chlorinated polyethylene A and chlorinated polyethylene B to improve the mechanical property of rubber, and is added with a flame retardant, chlorinated paraffin and antimony trioxide to effectively improve the flame retardant property of the rubber.

The invention provides an environment-friendly flame-retardant cable sheath rubber which comprises 12-16 parts of chlorinated polyethylene A type, 18-24 parts of chlorinated polyethylene B type, 3-4 parts of magnesium oxide, 13-15 parts of magnesium hydroxide, 0.5-1 part of calcium stearate, 0.1-0.3 part of stearic acid, 0.5-1 part of fully-refined paraffin, 3-5 parts of flame retardant, 4-6 parts of white carbon black, 3.5-4.5 parts of nano kaolin, 4-6 parts of N550 carbon black, 0.2-0.6 part of silane coupling agent, 10-14 parts of chlorinated paraffin, 0.5-1 part of vulcanizing machine, 0.5-1 part of cross-linking agent, 0.5-1 part of plasticizer and 0.5-1.5 part of antimony trioxide.

The further improvement lies in that: the rubber material comprises 14.3 parts of chlorinated polyethylene A type, 21.5 parts of chlorinated polyethylene B type, 3.6 parts of magnesium oxide, 14.3 parts of magnesium hydroxide, 0.72 part of calcium stearate, 0.22 part of stearic acid, 0.72 part of fully-refined paraffin, 4 parts of flame retardant, 5.4 parts of white carbon black, 3.6 parts of nano kaolin, 4.8 parts of N550 carbon black, 0.4 part of silane coupling agent, 12 parts of chlorinated paraffin, 0.85 part of vulcanizing machine, 0.83 part of crosslinking agent, 0.7 part of plasticizer and 1 part of antimony trioxide.

The further improvement lies in that: the flame retardant was CM 80A.

The further improvement lies in that: the silane coupling agent adopts vinyl tri (2-methoxyethoxy) silane, the vulcanizing machine is dicumyl peroxide, the crosslinking agent is triallyl isocyanurate, and the plasticizer is dioctyl phthalate.

The invention has the beneficial effects that: the chlorinated polyethylene A type and the chlorinated polyethylene B type are blended to prepare the rubber with improved mechanical property, oil resistance and ozone resistance, and the flame retardant, the chlorinated paraffin and the antimony trioxide are added to effectively improve the flame retardant property of the rubber; the flame retardant adopts an environment-friendly flame retardant CM80A, so that the heat release rate of chlorinated polyethylene is reduced, the flame retardant property is improved, and the flame retardant is more environment-friendly.

Detailed Description

For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.

Example one

The embodiment provides an environmental protection flame retardant cable sheath rubber, its characterized in that: the rubber material comprises 12 parts of chlorinated polyethylene A type, 18 parts of chlorinated polyethylene B type, 3 parts of magnesium oxide, 13 parts of magnesium hydroxide, 0.5 part of calcium stearate, 0.1 part of stearic acid, 0.5 part of refined paraffin, 3 parts of flame retardant, 4 parts of white carbon black, 3.5 parts of nano kaolin, 4 parts of N550 carbon black, 0.2 part of silane coupling agent, 10 parts of chlorinated paraffin, 0.5 part of vulcanizing machine, 0.5 part of crosslinking agent, 0.5 part of plasticizer and 0.5 part of antimony trioxide.

Example two

The embodiment provides an environment-friendly flame-retardant cable sheath rubber, which comprises 14.3 parts of chlorinated polyethylene A type, 21.5 parts of chlorinated polyethylene B type, 3.6 parts of magnesium oxide, 14.3 parts of magnesium hydroxide, 0.72 part of calcium stearate, 0.22 part of stearic acid, 0.72 part of refined paraffin, 4 parts of flame retardant, 5.4 parts of white carbon black, 3.6 parts of nano kaolin, 4.8 parts of N550 carbon black, 0.4 part of silane coupling agent, 12 parts of chlorinated paraffin, 0.85 part of vulcanizing machine, 0.83 part of crosslinking agent, 0.7 part of plasticizer and 1 part of antimony trioxide.

EXAMPLE III

The embodiment provides an environment-friendly flame-retardant cable sheath rubber, which comprises 16 parts of chlorinated polyethylene A, 24 parts of chlorinated polyethylene B, 4 parts of magnesium oxide, 15 parts of magnesium hydroxide, 1 part of calcium stearate, 0.3 part of stearic acid, 1 part of refined paraffin, 5 parts of a flame retardant, 6 parts of white carbon black, 4.5 parts of nano kaolin, 6 parts of N550 carbon black, 0.6 part of a silane coupling agent, 14 parts of chlorinated paraffin, 1 part of a vulcanizing machine, 1 part of a crosslinking agent, 1 part of a plasticizer and 1.5 parts of antimony trioxide.

The flame retardant adopts CM80A, the silane coupling agent adopts vinyl tri (2-methoxyethoxy) silane, the vulcanizer adopts dicumyl peroxide, the crosslinking agent adopts triallyl isocyanurate, and the plasticizer adopts dioctyl phthalate.

The chlorinated polyethylene A type and the chlorinated polyethylene B type are blended to prepare the rubber with improved mechanical property, oil resistance and ozone resistance, and the flame retardant, the chlorinated paraffin and the antimony trioxide are added to effectively improve the flame retardant property of the rubber; the flame retardant adopts an environment-friendly flame retardant CM80A, so that the heat release rate of chlorinated polyethylene is reduced, the flame retardant performance is improved, the flame retardant is more environment-friendly, the service life is long, the flame retardant effect is good, various performances of rubber can be effectively improved, the formula has higher cost performance, and the normal use of the cable can be effectively ensured.