CN103205034A - Butyronitrile-PVC (polyvinyl chloride) compound elastomer insulation material for wires and cables and preparation method of butyronitrile-PVC compound elastomer insulation material - Google Patents

Abstract

The invention discloses a butyronitrile-PVC (polyvinyl chloride) compound elastomer insulation material for wires and cables and a preparation method of the butyronitrile-PVC compound elastomer insulation material. The butyronitrile-PVC compound elastomer insulation material comprises, by weight, 100-120 parts of butyronitrile rubber, 30-40 parts of PVC resin, 2-3 parts of accelerant TMTD, 1-2 parts of accelerant DM, 1-2 parts of antiager, 2-3 parts of antiager MB, 6-8 parts of paraffin, 8-12 parts of zinc oxides, 1-1.5 parts of stearic acid, 10-15 parts of DOP (dioctyl-phthalate), 2-4 parts of gas-mixed carbon black, 30-40 parts of precipitated white carbon black and 50-60 parts of modified nano calcium carbonate. The insulation material produced has the advantages of good mechanical and physical performance, insulation performance, good high and low temperature resistance, oil resistance, solvent resistance, wear resistance, ozone resistance, ageing resistance and the like, is long-lasting, durable, environment-friendly, pollution-free and capable of meeting the requirements of modern wires and cables completely.

Description

Electric wire butyronitrile-elastic body insulated material of PVC mixture and preparation method thereof

Technical field

The present invention relates to a kind of electric wire Insulation Material, be specifically related to a kind of electric wire butyronitrile-elastic body insulated material of PVC mixture and preparation method thereof.

Background technology

Along with the continuous development of modern industry, various modern electrical equipment facilities (as communications service, elevator, Telephone set with music, locomotive fixture wire etc.) are also more and more higher to the requirement of each side with electric wire.Wherein the quality of Insulation Material performance directly influences quality, working (machining) efficiency, the range of application of electric wire.The common PVC CABLE MATERIALS can give out a large amount of dense smokes and can allow the people suffocate owing to contain a large amount of chlorine elements during burning, influence visibility meter, and produce some carcinogenic substances and HCl gas, and environment is caused serious harm.The common PVC Insulation Material also exists acid and alkali-resistance, heat resistant oils, and damaged and cracking appears in shortcoming such as organic solvent resistance is relatively poor easily in described specific environment.Therefore paracril has superior oil resistant, solvent resistance because having the polarity itrile group in the molecule, is that the butyronitrile-elastic body insulated material of PVC mixture of main properties-correcting agent arises at the historic moment with paracril.

Summary of the invention

The objective of the invention is at the deficiencies in the prior art, provide a kind of electric wire with butyronitrile-elastic body insulated material of PVC mixture and preparation method thereof, reach over-all propertieies such as oil resistant, heat-resisting, soft, anti-solvent, cold-resistant and low cigarette.

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

Electric wire butyronitrile-elastic body insulated material of PVC mixture, wherein each composition and weight part thereof are:

Paracril 100-120

Polyvinyl chloride resin 30-40

TM monex TD 2-3

Altax 1-2

Antioxidant D 1-2

Antioxidant MB 2-3

Paraffin 6-8

Zinc oxide 8-12

Stearic acid 1-1.5

DOP?10-15

Mixed gas carbon black 2-4

Precipitated silica 30-40

Modified nano calcium carbonate 50-60.

Preferably, electric wire butyronitrile-elastic body insulated material of PVC mixture, wherein each composition and weight part thereof are:

Paracril 100

Polyvinyl chloride resin 30

TM monex TD 3

Altax 1

Antioxidant D 2

Antioxidant MB 2

Paraffin 6

Zinc oxide 10

Stearic acid 1.2

DOP?10

Mixed gas carbon black 2

Precipitated silica 30

Modified nano calcium carbonate 53.

Described modified nano calcium carbonate is made by following method: the nano-calcium carbonate powder is added in the high speed kneader, be heated to 110-120 ℃, add the sodium stearate of the titanate coupling agent NDZ-105, the 3-4% that are equivalent to powder weight 2-3% and the Oleum Cocois of 4-6%, under the rotating speed of 300-500r/min, stir 20-30min, 60-70 ℃ of oven dry down, pulverized the 100-150 mesh sieve and got final product then.

The electric wire preparation method of butyronitrile-elastic body insulated material of PVC mixture may further comprise the steps:

(1) paracril is added in the two forcing machines of screw rod, the control of forcing machine melt zone temperature is at 120-150 ℃, when treating that it becomes molten state, add modified nano calcium carbonate, melt blending 10-20min under the rotating speed of 400-600r/min, extruding pelletization namely gets paracril coating modification nano-calcium carbonate particles then;

(2) the above-mentioned paracril coating modification nano-calcium carbonate particles that makes and polyvinyl chloride resin, anti-aging agent are dropped in the Banbury mixer, add mixed gas carbon black, precipitated silica, stearic acid and paraffin behind the mixing 3-4min and continue mixing 5-6min, add the mixing 2-3min of remaining various auxiliary agent at last, Banbury mixer rotating speed 150-200r/min, temperature is controlled at 80-95 ℃;

(3) blended stock that obtains after the banburying is conveyed into screw extrusion press through the bipyramid shearing and extrudes processing, body temperature when extruding is 140 ± 10 ℃, head temperature is 110 ± 10 ℃, extruding the back vulcanizes at vulcanizing press, at 145-165 ℃ of following hot pressing 8-10min, the normal temperature 4-6min that colds pressing, sulfide stress 6-10MPa, going out linear velocity is 12-15m/min.

Beneficial effect of the present invention:

The present invention is by carrying out surface modification to nano-calcium carbonate, can reduce the surface energy of particle, avoid reuniting between particle, and improve the dispersiveness of nano-calcium carbonate in paracril, significantly improve the consistency of nano-calcium carbonate particles and paracril, thereby improve the mechanical property of paracril.The Insulation Material that the present invention produces not only has good mechanical and physical performance, insulating property, and also have good resistant of high or low temperature, oil resistant, anti-solvent, wear resistance, anti-ozone, advantage such as ageing-resistant simultaneously, durable in use, environment friendly and pollution-free, can satisfy the requirement of modern electric wire fully.

Embodiment

Electric wire butyronitrile-elastic body insulated material of PVC mixture, wherein each composition and weight part thereof are: 100 parts of paracrils

30 parts of polyvinyl chloride resins

3 parts of TM monex TD

1 part of altax

2 parts of antioxidant Ds

2 parts of antioxidant MBs

6 parts in paraffin

10 parts in zinc oxide

1.2 parts of stearic acid

10 parts of DOP

2 parts of mixed gas carbon blacks

30 parts of precipitated silicas

53 parts of modified nano calcium carbonates.

Wherein, described modified nano calcium carbonate is made by following method: the nano-calcium carbonate powder is added in the high speed kneader, be heated to 110 ℃, add the titanate coupling agent NDZ-105 be equivalent to powder weight 2%, 3% sodium stearate and 5% Oleum Cocois, under the rotating speed of 400r/min, stir 25min, 65 ℃ of oven dry down, pulverized 100 mesh sieves and got final product then.

The electric wire preparation method of butyronitrile-elastic body insulated material of PVC mixture, may further comprise the steps: (1) adds paracril in the two forcing machines of screw rod, the control of forcing machine melt zone temperature is at 140 ℃, when treating that it becomes molten state, add modified nano calcium carbonate, melt blending 15min under the rotating speed of 500r/min, extruding pelletization namely gets paracril coating modification nano-calcium carbonate particles then;

(2) the above-mentioned paracril coating modification nano-calcium carbonate particles that makes and polyvinyl chloride resin, anti-aging agent are dropped in the Banbury mixer, add mixed gas carbon black, precipitated silica, stearic acid and paraffin behind the mixing 3min and continue mixing 5min, add the mixing 3min of remaining various auxiliary agent at last, Banbury mixer rotating speed 200r/min, temperature is controlled at 95 ℃;

(3) blended stock that obtains after the banburying is conveyed into screw extrusion press through the bipyramid shearing and extrudes processing, body temperature when extruding is 140 ℃, head temperature is 115 ℃, extruding the back vulcanizes at vulcanizing press, at 165 ℃ of following hot pressing 8min, the normal temperature 6min that colds pressing, sulfide stress 10MPa, going out linear velocity is 14m/min.

The main performance index of the Insulation Material that the present invention produces is as follows:

1, insulation resistance is not less than 50M Ω/km 20 ℃ the time.

2, finished cable stands to exchange 50HZ 3.5KV/5min voltage test and does not puncture.

3, physical and mechanical properties sees the following form:

Claims (4)

1. electric wire is characterized in that wherein each composition and weight part thereof are with butyronitrile-elastic body insulated material of PVC mixture:

Paracril 100-120

Polyvinyl chloride resin 30-40

TM monex TD 2-3

Altax 1-2

Antioxidant D 1-2

Antioxidant MB 2-3

Paraffin 6-8

Zinc oxide 8-12

Stearic acid 1-1.5

DOP?10-15

Mixed gas carbon black 2-4

Precipitated silica 30-40

Modified nano calcium carbonate 50-60.

2. electric wire is characterized in that wherein each composition and weight part thereof are with butyronitrile-elastic body insulated material of PVC mixture:

Paracril 100

Polyvinyl chloride resin 30

TM monex TD 3

Altax 1

Antioxidant D 2

Antioxidant MB 2

Paraffin 6

Zinc oxide 10

Stearic acid 1.2

DOP?10

Mixed gas carbon black 2

Precipitated silica 30

Modified nano calcium carbonate 53.

3. electric wire according to claim 1 and 2 is with butyronitrile-elastic body insulated material of PVC mixture, it is characterized in that, described modified nano calcium carbonate is made by following method: the nano-calcium carbonate powder is added in the high speed kneader, be heated to 110-120 ℃, add the sodium stearate of the titanate coupling agent NDZ-105, the 3-4% that are equivalent to powder weight 2-3% and the Oleum Cocois of 4-6%, under the rotating speed of 300-500r/min, stir 20-30min, 60-70 ℃ of oven dry down, pulverized the 100-150 mesh sieve and got final product then.

4. electric wire as claimed in claim 1 or 2 is characterized in that may further comprise the steps with the preparation method of butyronitrile-elastic body insulated material of PVC mixture:

(1) paracril is added in the two forcing machines of screw rod, the control of forcing machine melt zone temperature is at 120-150 ℃, when treating that it becomes molten state, add modified nano calcium carbonate, melt blending 10-20min under the rotating speed of 400-600r/min, extruding pelletization namely gets paracril coating modification nano-calcium carbonate particles then;

(2) the above-mentioned paracril coating modification nano-calcium carbonate particles that makes and polyvinyl chloride resin, anti-aging agent are dropped in the Banbury mixer, add mixed gas carbon black, precipitated silica, stearic acid and paraffin behind the mixing 3-4min and continue mixing 5-6min, add the mixing 2-3min of remaining various auxiliary agent at last, Banbury mixer rotating speed 150-200r/min, temperature is controlled at 80-95 ℃;

(3) blended stock that obtains after the banburying is conveyed into screw extrusion press through the bipyramid shearing and extrudes processing, body temperature when extruding is 140 ± 10 ℃, head temperature is 110 ± 10 ℃, extruding the back vulcanizes at vulcanizing press, at 145-165 ℃ of following hot pressing 8-10min, the normal temperature 4-6min that colds pressing, sulfide stress 6-10MPa, going out linear velocity is 12-15m/min.