CN103467866A

CN103467866A - 125 DEG C high-voltage-resistant insulated cable material and preparation method thereof

Info

Publication number: CN103467866A
Application number: CN201310375717XA
Authority: CN
Inventors: 许义彬
Original assignee: JING FENG GROUP
Current assignee: JING FENG GROUP
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2013-12-25

Abstract

The invention discloses a 125 DEG C high-voltage-resistant insulated cable material and a preparation method thereof. The high-voltage-resistant insulated cable material is prepared by the following raw materials in parts by weight: 50-70 parts of chlorinated polyethylene, 20-30 parts of aflas rubber, 15-20 parts of polypropylene, 3-5 parts of Di (tert-butylperoxyisopropyl) benzene, 4-6 parts of triallyl isocyanurate, 8-12 parts of active magnesium oxide, 15-25 parts of talcum powder, 10-15 parts of roasting argil, 15-20 parts of carbon black N660, 2-3 parts of zinc stearate, 1-2 parts of barium stearate, 0.5-1.5 parts of antioxidant RD, 10-15 parts of trioctyl trimellitate, 1-2 parts of accelerator NOBS (N-(Oxidiethylene)-2-benzothiazolyl sulfenamide), 12-16 parts of zinc borate and 5-8 parts of composite filling. The cable material has excellent flame resistance, physical and mechanical properties, processability and electric properties, resists high voltage, high temperature, acid, alkali and ozone, can be used for a long term at 125 DEG C, and passes a 70000V television set high voltage line experiment.

Description

A kind of 125 ℃ of high pressure resistant insulation CABLE MATERIALS and preparation method thereof

Technical field

The present invention relates to a kind of CABLE MATERIALS and preparation method thereof, be specifically related to a kind of 125 ℃ of high pressure resistant insulation CABLE MATERIALS and preparation method thereof.

Background technology

Chlorinatedpolyethylene is because having excellent weathering resistance, anti-ozone, oil resistant, flame retardant resistance and processing characteristics, and has the physical and mechanical propertiess such as good anti tear, wear-resisting, anti-Qu Rao, is widely used in cable industry.But chlorinated polyethylene long term operation temperature is lower and withstand voltage properties is poor, cause existing chlorinatedpolyethylene CABLE MATERIALS to lose efficacy under High Temperature High Pressure, can't work.

Summary of the invention

The object of the invention is to, for existing technical deficiency, provides a kind of 125 ℃ of high pressure resistant insulation CABLE MATERIALS and preparation method thereof, to meet the severe rugged environment of High Temperature High Pressure.

The technical solution used in the present invention is as follows:

A kind of 125 ℃ of high pressure resistant insulation CABLE MATERIALS, its raw material by following weight part is made: chlorinatedpolyethylene 50-70,4 third viton 20-30, polypropylene 15-20, dual-tert-butyl peroxy isopropyl base benzene 3-5, iso-cyanuric acid triallyl ester 4-6, activated magnesia 8-12, talcum powder 15-25, calcinated argil 10-15, carbon black N66015-20, Zinic stearas 2-3, barium stearate 1-2, anti-aging agent RD 0.5-1.5, trioctyl trimellitate 10-15, accelerant NOBS 1-2, zinc borate 12-16, compounded mix 5-8;

The preparation method of described compounded mix is as follows: a. takes off the raw material of row weight part: fluorite 10-15, rhombspar 5-10, vinylformic acid 10-15, polyvinyl alcohol 8-12, ammonium persulphate 0.1-0.2, jade powder 0.5-1, volcanic ash 3-6, aluminium hydroxide 4-8, barium sulfate crystal whisker 3-5, calcium stearate 2-3, mullite 5-10, ptfe micropowder 4-7, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 2-3; B, fluorite, rhombspar are calcined under 510-540 ℃ to 3-6 hour, mix with mullite, volcanic ash after being cooled to room temperature, pulverized the 400-500 mesh sieve, then add appropriate water making beating to make the slurries that concentration is 45-55%, add again the jade powder, ultrasonic dispersion 20-30 minute, then heating in water bath, to 70-80 ℃, adds vinylformic acid, polyvinyl alcohol and ammonium persulphate under nitrogen protection, stirring reaction 3-4h, filter, washing, dry; C, the powder after drying mix with all the other raw materials, 2000-3000rpm high-speed stirring 5-10 minute and get final product.

The preparation method of 125 ℃ of high pressure resistant insulation CABLE MATERIALS, its concrete steps are as follows: press formula rate chlorinatedpolyethylene, 4 third viton, dual-tert-butyl peroxy isopropyl base benzene, iso-cyanuric acid triallyl ester, activated magnesia, compounded mix, zinc borate, anti-aging agent RD are dropped into to mill, mixing 4-6min under 75-85 ℃; Add again polypropylene, talcum powder, calcinated argil, carbon black N660, Zinic stearas and barium stearate, mixing 5-8min, finally add all the other raw materials, mixing 3-4min, after thin-pass 7-9 time, the twin screw extruder extruding pelletization, each section temperature of forcing machine is as follows: machine barrel: one section 145-155 ℃, two sections 150-160 ℃, three sections 160-170 ℃, head: 155-165 ℃, mouthful mould: 150-160 ℃, melt temperature: 160-170 ℃, finally by extruded stock through electron beam to irradiate crosslinked 15-20Mrad dosage, be cooled to normal temperature, packing is finished product.

Beneficial effect of the present invention:

CABLE MATERIALS of the present invention has good flame retardant properties, physical and mechanical properties, processing characteristics and electrical property, high pressure resistant, high temperature resistant, acid and alkali-resistance, anti-ozone, can be at 125 ℃ of lower life-time service, by 70000 volts of TV set high-voltage line experiments, can be widely used in the fields such as electric wire optical fibre core, the insulation of colour TV high-voltage connection, wire cable for aviation use, there is good application prospect.

Embodiment

A kind of 125 ℃ of high pressure resistant insulation CABLE MATERIALS, its raw material by following weight (kg) is made: chlorinatedpolyethylene (CM135B) 60,4 third viton (TP-2) 25, polypropylene (T30S) 15, dual-tert-butyl peroxy isopropyl base benzene 4, iso-cyanuric acid triallyl ester 5, activated magnesia 10, talcum powder 20, calcinated argil 12, carbon black N66018, Zinic stearas 2, barium stearate 1.5, anti-aging agent RD 0.8, trioctyl trimellitate 10, accelerant NOBS 1.5, zinc borate 15, compounded mix 6;

The preparation method of described compounded mix is as follows: a. takes off the raw material of column weight amount (kg): fluorite 15, rhombspar 8, vinylformic acid 10, polyvinyl alcohol 8, ammonium persulphate 0.12, jade powder 0.7, volcanic ash 4, aluminium hydroxide 6, barium sulfate crystal whisker 4, calcium stearate 2, mullite 8, ptfe micropowder 5, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 2.5; B, fluorite, rhombspar are calcined 5 hours under 520 ℃, mix with mullite, volcanic ash after being cooled to room temperature, pulverized 400 mesh sieves, then add appropriate water making beating to make the slurries that concentration is 55%, add again the jade powder, ultrasonic dispersion 25 minutes, then heating in water bath to 75 ℃, add vinylformic acid, polyvinyl alcohol and ammonium persulphate under nitrogen protection, stirring reaction 3h, filter, washing, dry; C, the powder after drying mix with all the other raw materials, 2000rpm high-speed stirring 8 minutes and get final product.

The preparation method of 125 ℃ of high pressure resistant insulation CABLE MATERIALS, its concrete steps are as follows: press formula rate chlorinatedpolyethylene, 4 third viton, dual-tert-butyl peroxy isopropyl base benzene, iso-cyanuric acid triallyl ester, activated magnesia, compounded mix, zinc borate, anti-aging agent RD are dropped into to mill, mixing 5min under 80 ℃; Add polypropylene, talcum powder, calcinated argil, carbon black N660, Zinic stearas and barium stearate, mixing 7min, finally add all the other raw materials again, mixing 3min, after thin-pass 8 times, the twin screw extruder extruding pelletization, each section temperature of forcing machine is as follows: machine barrel: one section 150 ℃, two sections 155 ℃, three sections 170 ℃, head: 160 ℃, mouthful mould: 155 ℃, melt temperature: 170 ℃, finally by extruded stock through electron beam to irradiate crosslinked 18Mrad dosage, be cooled to normal temperature, packing is finished product.

The performance test results of the CABLE MATERIALS made is as follows:

Claims

1. 125 ℃ of high pressure resistant insulation CABLE MATERIALS, it is characterized in that, made by the raw material of following weight part: chlorinatedpolyethylene 50-70,4 third viton 20-30, polypropylene 15-20, dual-tert-butyl peroxy isopropyl base benzene 3-5, iso-cyanuric acid triallyl ester 4-6, activated magnesia 8-12, talcum powder 15-25, calcinated argil 10-15, carbon black N660 15-20, Zinic stearas 2-3, barium stearate 1-2, anti-aging agent RD 0.5-1.5, trioctyl trimellitate 10-15, accelerant NOBS 1-2, zinc borate 12-16, compounded mix 5-8;

2. the preparation method of 125 ℃ of high pressure resistant insulation CABLE MATERIALS as claimed in claim 1, it is characterized in that, its concrete steps are as follows: press formula rate chlorinatedpolyethylene, 4 third viton, dual-tert-butyl peroxy isopropyl base benzene, iso-cyanuric acid triallyl ester, activated magnesia, compounded mix, zinc borate, anti-aging agent RD are dropped into to mill, mixing 4-6min under 75-85 ℃; Add again polypropylene, talcum powder, calcinated argil, carbon black N660, Zinic stearas and barium stearate, mixing 5-8min, finally add all the other raw materials, mixing 3-4min, after thin-pass 7-9 time, the twin screw extruder extruding pelletization, each section temperature of forcing machine is as follows: machine barrel: one section 145-155 ℃, two sections 150-160 ℃, three sections 160-170 ℃, head: 155-165 ℃, mouthful mould: 150-160 ℃, melt temperature: 160-170 ℃, finally by extruded stock through electron beam to irradiate crosslinked 15-20Mrad dosage, be cooled to normal temperature, packing is finished product.