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Environment-friendly flame-retardant cable material and preparation method thereof

A flame retardant cable material and cable material technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of large heat release, large smoke generation, and unsatisfactory flame retardant effect, so as to improve strength and increase Flame retardant properties, the effect of improving comprehensive mechanical properties

Inactive Publication Date: 2018-06-01
HEFEI ANLI ELECTRIC POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, EVA, like most polymers, is easy to burn, and has a large heat release, a large amount of smoke, and releases toxic gases, so that the use of halogen-free, low-smoke, and low-toxic environmentally friendly flame retardants to prepare flame-retardant EVA composite materials research has drawn more and more attention
[0006] At present, there are few environmentally friendly flame retardants with low smoke and low toxicity on the market to prepare flame-retardant EVA composite materials, and the flame-retardant effect is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] An environmentally friendly flame-retardant cable material, in parts by weight, the cable material includes the following components and parts by weight:

[0048] 35 parts of ethylene-acrylic acid ethylene copolymer;

[0049] 15 parts of EPDM rubber;

[0050] Modified talcum powder 11 parts

[0051] 26 parts of flame retardant;

[0052] whiskers 6.5 parts;

[0053] Antioxidant 6 parts;

[0054] 3 parts plasticizer.

[0055] Wherein, the preparation method of described modified talcum powder is as follows:

[0056] (1) Dry the talcum powder at 85°C to remove the moisture on the surface of the talc powder;

[0057] (2) Calcinate the talc powder at 350°C for 2 hours, then freeze at -40°C for 50 minutes;

[0058] (3) Calcining at 550°C for 40 minutes, and then ultrasonic treatment with 50MHz ultrasonic wave for 15 minutes;

[0059] (4) Blow the talc powder with nitrogen gas at -20°C for 25 minutes, and cool to room temperature to obtain the modified talc powder.

...

Embodiment 2

[0070] An environmentally friendly flame-retardant cable material, in parts by weight, the cable material includes the following components and parts by weight:

[0071] 30 parts of ethylene-acrylic acid ethylene copolymer;

[0072] 10 parts of EPDM rubber;

[0073] Modified talcum powder 7 parts

[0074] 22 parts of flame retardant;

[0075] whiskers 3 parts;

[0076] Antioxidant 2 parts;

[0077] 0.5 parts of plasticizer.

[0078] Wherein, the preparation method of described modified talcum powder is as follows:

[0079] (1) Dry the talcum powder at 80°C to remove the moisture on the surface of the talc powder;

[0080] (2) Calcinate the talc powder at 300°C for 1 hour, and then freeze at -40°C for 40 minutes;

[0081] (3) Calcined at 500°C for 30 minutes, and then ultrasonicated with 40MHz ultrasonic wave for 10 minutes;

[0082] (4) Blow the talc powder with nitrogen gas at -20°C for 20 minutes, and cool to room temperature to obtain the modified talc powder.

[0...

Embodiment 3

[0093] An environmentally friendly flame-retardant cable material, in parts by weight, the cable material includes the following components and parts by weight:

[0094] 40 parts of ethylene-acrylic acid ethylene copolymer;

[0095] 20 parts of EPDM rubber;

[0096] Modified talcum powder 15 parts

[0097] 30 parts of flame retardant;

[0098] whiskers 10 parts;

[0099] Antioxidant 8 parts;

[0100] 5.5 parts of plasticizer.

[0101] Wherein, the preparation method of described modified talcum powder is as follows:

[0102] (1) Dry the talc powder at 90°C to remove the moisture on the surface of the talc powder;

[0103] (2) Calcinate the talc powder at 400°C for 3 hours, and then freeze at -40°C for 60 minutes;

[0104] (3) Calcining at 600°C for another 50 minutes, and then ultrasonic treatment with 60MHz ultrasonic wave for 20 minutes;

[0105] (4) Blow the talc powder with nitrogen at -20°C for 30 minutes, and cool to room temperature to obtain the modified talc p...

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PUM

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Abstract

The invention discloses an environment-friendly flame-retardant cable material and a preparation method thereof. The cable material comprises, by weight, 30-40 parts of an ethylene-vinyl acrylate copolymer, 10-20 parts of an EPDM rubber, 7-15 parts of modified talcum powder, 22-30 parts of a flame retardant, 3-10 parts of whisker, 2-8 parts of an antioxidant and 0.5-5.5 parts of a plasticizer. Thepreparation method comprises (1) weighing: weighing components according to the specified ratio, (2) mixing, (3) mixing: mixing the raw materials in a kneader at a temperature of 140 to 160 DEG C for25min, and (4) extrusion granulation: adding the raw materials into a twin-screw extruder and carrying out extrusion granulation at a processing temperature of 200-220 DEG C. The environment-friendlyflame-retardant cable material has good flame retardant performances and excellent comprehensive performances. The preparation method has simple processes and high processing efficiency and can meetthe needs of large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of electric wires and cables, in particular, the invention relates to an environment-friendly flame-retardant cable material and a preparation method thereof. Background technique [0002] In order to meet the safety requirements of electrical circuits, the flame retardant of wires and cables has attracted more and more attention. The research on flame retardant of wires and cables has become a comprehensive development direction of the cable industry. The demand for flame retardants in the wire and cable industry is particularly prominent. . There are already a large number of suppliers of wire and cable materials, such as Dupond, Union Carbide, AlphaGary, BASF, Bayer, Borealis, Exxon and Shell Chemicals. Halogen-free flame-retardant wire and cable products for various purposes (construction, communication, transportation, railway, etc.) have appeared on the market. Since the catastrophic fire accident at...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08K13/06C08K9/00C08K3/34H01B3/44
CPCC08L23/0869C08K2201/011C08L2201/02C08L2201/08C08L2203/202H01B3/441C08L23/16C08K13/06C08K9/00C08K3/34
Inventor 殷世尧
Owner HEFEI ANLI ELECTRIC POWER ENG CO LTD
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