CN105061835A - Low-toxicity high-efficiency cable material for high power and preparation method thereof - Google Patents

Abstract

The invention discloses a low-toxicity high-efficiency cable material for high power; the cable material is prepared from the following raw materials in parts by weight: 12-16 parts of an ethylene/vinyl acetate copolymer, 10-14 parts of epoxy resin, 2-3 parts of zinc oxide, 4-6 parts of metallocene polyethylene, 5-6 parts of epoxy soybean oil, 3-4 parts of graphite, 4-7 parts of triallyl triisocyanurate, 4-6 parts of dihydroxy alkyl phosphinate, 3-5 parts of a fluorite powder, 2-4 parts of alpha-pinene, 40-60 parts of butadiene-acrylonitrile rubber, 6-8 parts of aromatic-based rubber oil, 3-4 parts of trioctyl trimellitate, 2-5 parts of zinc borate, and 8-12 parts of a filling agent. The cable material has the advantages of relatively good mechanical properties, low smoke density and better color and luster; and the added halogen-free flame retardant greatly reduces pollution to the environment, and the cable material has quite good application prospects.

Description

A kind of high-power low toxicity high-efficient cable material and preparation method thereof

Technical field

The present invention relates to a kind of technical field of CABLE MATERIALS, particularly one high-power low toxicity high-efficient cable material and preparation method thereof.

Background technology

Along with the develop rapidly of China's expanding economy and communications industry, the usage quantity of powerful device gets more and more, and this just has higher requirement to the use properties of cable.The tolerance power of cable and the difference of inner wire top temperature and envrionment temperature linear, and the maximum operating temperature of inner wire is limited by cable insulation material, the Long-term service temperature of cable insulation material is exactly the highest permission working temperature of inner wire, but most CABLE MATERIALS does not have outstanding resistance to elevated temperatures in the market, the demand of present powerful device cannot be met.Therefore the present inventor is by the new cable material formula of design and technique, creates the novel cable material being suitable for high-power use.

Summary of the invention

The present invention compensate for the deficiencies in the prior art, provides a kind of high-power low toxicity high-efficient cable material and preparation method thereof.

Technical scheme of the present invention is as follows:

CABLE MATERIALS of the present invention is made up of the raw material of following weight part: ethylene-vinyl acetate copolymer 12-16, epoxy resin 10-14, zinc oxide 2-3, metallocene PE 4-6, epoxy soybean oil 5-6, graphite 3-4, cyamelide triallyl 4-7, dihydroxyalkyl phosphinates 4-6, Fluorspar Powder 3-5, α-pinene 2-4, paracril 40-60, aromatic base rubber oil 6-8, trioctyl trimellitate 3-4, zinc borate 2-5, weighting agent 8-12;

Described weighting agent is made up of the raw material of following weight part: tetrafluoraoethylene-hexafluoropropylene copolymer 8-12, nano-ceramic powder 2-4, iron tailings ground-slag 2-3, attapulgite 5-7, hydrotalcite 3-4, sodium alginate 2-4, antimonous oxide 2-3, rice hull ash 3-5, monazite 4-5, polyphenylene thioether 4-5, glass fibre 3-5, flyash 6-8, its preparation method flyash is placed in the aqueous sodium hydroxide solution immersion activation 6-10 hour that pH value is 13.2-13.6, dry after filtering, and with iron tailings ground-slag, hydrotalcite, monazite mixes, be placed in ball mill and carry out mechanical grinding to 50-80 μm, again with tetrafluoraoethylene-hexafluoropropylene copolymer, nano-ceramic powder, sodium alginate, antimonous oxide, rice hull ash, polyphenylene thioether, glass fibre mixing is placed in homogenizer with 400-600 rev/min of process 5-10 minute, for subsequent use, attapulgite is calcined 4-5 hour under 600-800 DEG C of high temperature, add a small amount of water after cooling and stir into slurries, again slurry spraying is sprayed on gained mixture surface above, carry out coated process, finally coatedparticles is placed in vulcanization bed granulation 40-60 minute, discharging.

The concrete steps of the preparation of described CABLE MATERIALS are as follows:

(1) high-speed mixing is carried out dropping in high-speed mixer after ethylene-vinyl acetate copolymer, trioctyl trimellitate, metallocene PE, epoxy soybean oil, α-pinene, paracril, aromatic base rubber oil, epoxy resin mixing with 700-900 rev/min, and make mixture system be warming up to 90-110 DEG C by indirect heating, increase its mobility with softening mixed system;

(2) step 1 gained mixed system mixed with graphite, cyamelide triallyl, dihydroxyalkyl phosphinates, Fluorspar Powder and be placed in Banbury mixer continuous mixing 8-14 minute at 100-110 DEG C;

(3) step 2 gained banburying product is put in mill, then add zinc borate, zinc oxide, weighting agent and leftover materials, at 150-170 DEG C, open refining to material plastify discharging evenly completely;

(4) put in storage after pelletizing after the cooling of step 3 gained material, screening, packaging.

Beneficial effect of the present invention:

Clou of the present invention is that invention one is applicable to powerful CABLE MATERIALS, has the excellent performance such as corrosion-resistant ageing-resistant simultaneously.

CABLE MATERIALS better mechanical property of the present invention, smoke density is low, has preferably color and luster, and the halogen-free flame retardants of interpolation greatly reduces environmental pollution, has good application prospect.

The interpolation of weighting agent can strengthen the heat-resisting ability of CABLE MATERIALS greatly, the tetrafluoraoethylene-hexafluoropropylene copolymer volume specific resistance added is very high, be not subject to the impact of water and moisture, thermotolerance is strong, the interpolation of polyphenylene thioether enhances wear-resisting, the creep-resistant property of CABLE MATERIALS, makes CABLE MATERIALS can use continuously in the temperature range of-70 DEG C to 240 DEG C by the improvement of weighting agent.

Specific embodiments

Below in conjunction with following embodiment, the present invention is described in further detail:

The raw material taking following weight part (kg) is made: ethylene-vinyl acetate copolymer 14, epoxy resin 12, zinc oxide 2, metallocene PE 5, epoxy soybean oil 5, graphite 3, cyamelide triallyl 6, dihydroxyalkyl phosphinates 5, Fluorspar Powder 4, α-pinene 3, paracril 50, aromatic base rubber oil 7, trioctyl trimellitate 3, zinc borate 4, weighting agent 10;

Described weighting agent is made up of the raw material of following weight part (kg): tetrafluoraoethylene-hexafluoropropylene copolymer 10, nano-ceramic powder 3, iron tailings ground-slag 2, attapulgite 6, hydrotalcite 3, sodium alginate 3, antimonous oxide 2, rice hull ash 4, monazite 4, polyphenylene thioether 4, glass fibre 4, flyash 7, its preparation method be flyash is placed in pH value be 13.4 aqueous sodium hydroxide solution soak activation 8 hours, dry after filtering, and with iron tailings ground-slag, hydrotalcite, monazite mixes, be placed in ball mill and carry out mechanical grinding to 70 μm, again with tetrafluoraoethylene-hexafluoropropylene copolymer, nano-ceramic powder, sodium alginate, antimonous oxide, rice hull ash, polyphenylene thioether, glass fibre mixing is placed in homogenizer with 500 revs/min of process 8 minutes, for subsequent use, attapulgite is calcined 4 hours under 700 DEG C of high temperature, add a small amount of water after cooling and stir into slurries, again slurry spraying is sprayed on gained mixture surface above, carry out coated process, finally coatedparticles is placed in vulcanization bed granulation 50 minutes, discharging.

The concrete steps of the preparation of described CABLE MATERIALS are as follows:

(1) high-speed mixing is carried out dropping in high-speed mixer after ethylene-vinyl acetate copolymer, trioctyl trimellitate, metallocene PE, epoxy soybean oil, α-pinene, paracril, aromatic base rubber oil, epoxy resin mixing with 800 revs/min, and make mixture system be warming up to 100 DEG C by indirect heating, increase its mobility with softening mixed system;

(2) step 1 gained mixed system mixed with graphite, cyamelide triallyl, dihydroxyalkyl phosphinates, Fluorspar Powder and be placed in Banbury mixer continuous mixing 11 minutes at 110 DEG C;

(3) step 2 gained banburying product is put in mill, then add zinc borate, zinc oxide, weighting agent and leftover materials, at 160 DEG C, open refining to material plastify discharging evenly completely;

(4) put in storage after pelletizing after the cooling of step 3 gained material, screening, packaging.

CABLE MATERIALS tensile strength of the present invention is 15.7MPa after tested, elongation at break is 385%, oxygen index is 32%, 9.4% is less than at 220 DEG C × 168h hot air aging back draft change rate of strength, extension at break velocity of variation is less than 8.2%, soak 168h in 24 DEG C in 20mol/L hydrochloric acid soln after, elongation at break is 335%, and soak 168h in 24 DEG C in 20mol/L sodium hydroxide solution after, elongation at break is 346%.

Claims (2)

1. a high-power low toxicity high-efficient cable material, it is characterized in that, be made up of the raw material of following weight part: ethylene-vinyl acetate copolymer 12-16, epoxy resin 10-14, zinc oxide 2-3, metallocene PE 4-6, epoxy soybean oil 5-6, graphite 3-4, cyamelide triallyl 4-7, dihydroxyalkyl phosphinates 4-6, Fluorspar Powder 3-5, α-pinene 2-4, paracril 40-60, aromatic base rubber oil 6-8, trioctyl trimellitate 3-4, zinc borate 2-5, weighting agent 8-12;

Described weighting agent is made up of the raw material of following weight part: tetrafluoraoethylene-hexafluoropropylene copolymer 8-12, nano-ceramic powder 2-4, iron tailings ground-slag 2-3, attapulgite 5-7, hydrotalcite 3-4, sodium alginate 2-4, antimonous oxide 2-3, rice hull ash 3-5, monazite 4-5, polyphenylene thioether 4-5, glass fibre 3-5, flyash 6-8, its preparation method flyash is placed in the aqueous sodium hydroxide solution immersion activation 6-10 hour that pH value is 13.2-13.6, dry after filtering, and with iron tailings ground-slag, hydrotalcite, monazite mixes, be placed in ball mill and carry out mechanical grinding to 50-80 μm, again with tetrafluoraoethylene-hexafluoropropylene copolymer, nano-ceramic powder, sodium alginate, antimonous oxide, rice hull ash, polyphenylene thioether, glass fibre mixing is placed in homogenizer with 400-600 rev/min of process 5-10 minute, for subsequent use, attapulgite is calcined 4-5 hour under 600-800 DEG C of high temperature, add a small amount of water after cooling and stir into slurries, again slurry spraying is sprayed on gained mixture surface above, carry out coated process, finally coatedparticles is placed in vulcanization bed granulation 40-60 minute, discharging.

2. the high-power low toxicity high-efficient cable material according to claims 1, it is characterized in that, the concrete steps of preparation method are as follows:

(1) high-speed mixing is carried out dropping in high-speed mixer after ethylene-vinyl acetate copolymer, trioctyl trimellitate, metallocene PE, epoxy soybean oil, α-pinene, paracril, aromatic base rubber oil, epoxy resin mixing with 700-900 rev/min, and make mixture system be warming up to 90-110 DEG C by indirect heating, increase its mobility with softening mixed system;

(2) step 1 gained mixed system mixed with graphite, cyamelide triallyl, dihydroxyalkyl phosphinates, Fluorspar Powder and be placed in Banbury mixer continuous mixing 8-14 minute at 100-110 DEG C;

(3) step 2 gained banburying product is put in mill, then add zinc borate, zinc oxide, weighting agent and leftover materials, at 150-170 DEG C, open refining to material plastify discharging evenly completely;

(4) put in storage after pelletizing after the cooling of step 3 gained material, screening, packaging.