A high-short-circuit-resistant, low-smoke, halogen-free home improvement wire and cable material and its preparation method

A technology for wire and cable materials and home decoration, applied in the field of wire and cable materials, can solve the problems of large investment, harsh operation protection, uneven cross-linking density, etc., and achieve the effect of high short-circuit resistance and improved mechanical properties.

Active Publication Date: 2022-04-15
江苏北化新橡新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the cross-linking technology that people often use is the radiation cross-linking method, but the radiation cross-linking technology is relatively complicated, and the investment is large, the operation protection is also relatively harsh, and the cross-linking density is not uniform.

Method used

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  • A high-short-circuit-resistant, low-smoke, halogen-free home improvement wire and cable material and its preparation method
  • A high-short-circuit-resistant, low-smoke, halogen-free home improvement wire and cable material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Mixing: Stir and mix the peroxide crosslinking agent, flame retardant, lubricant, compatibilizer, antioxidant, and polymerization inhibitor in a mixer. The mass components are as follows: 0.5 parts of peroxide crosslinking agent, flame retardant 55 parts of agent, 1 part of lubricant, 3 parts of compatibilizer, 1 part of antioxidant, 0.3 part of polymerization inhibitor.

[0042] Internal mixing: Mix the above mixed powder with 5 parts of linear low density polyethylene, 35 parts of ethylene-vinyl acetate copolymer, and 20 parts of EPDM rubber.

[0043] Dynamic vulcanization: Cable material is obtained by two-stage extrusion after banburying. The processing temperature of each section of single screw is: 90°C, 110°C, 125°C, 145°C, 150°C, and the temperature of each section of twin screw is: 150°C, 140°C , 130°C, 125°C, 115°C, 110°C, 100°C, the extrusion time is 1-2min.

[0044] The cable material is melted and extruded on the conductive wire core of the cable to form a...

Embodiment 2

[0047] Mixing: Stir and mix the peroxide crosslinking agent, flame retardant, lubricant, compatibilizer, antioxidant, and polymerization inhibitor in a mixer. The mass components are as follows: 0.6 parts of peroxide crosslinking agent, flame retardant 55 parts of agent, 1 part of lubricant, 3 parts of compatibilizer, 1 part of antioxidant, 0.3 part of polymerization inhibitor.

[0048] Internal mixing: Mix the above mixed powder with 5 parts of linear low density polyethylene, 35 parts of ethylene-vinyl acetate copolymer, and 20 parts of EPDM rubber.

[0049] Dynamic vulcanization: Cable material is obtained by two-stage extrusion after banburying. The processing temperature of each section of single screw is: 90°C, 110°C, 125°C, 145°C, 150°C, and the temperature of each section of twin screw is: 150°C, 140°C , 130°C, 125°C, 115°C, 110°C, 100°C, the extrusion time is 1-2min.

[0050] The cable material is melted and extruded on the conductive wire core of the cable to form a...

Embodiment 3

[0053] Mixing: Stir and mix the peroxide crosslinking agent, flame retardant, lubricant, compatibilizer, antioxidant, and polymerization inhibitor in a mixer. The mass components are as follows: 1 part of peroxide crosslinking agent, 1 part of flame retardant 55 parts of agent, 1 part of lubricant, 3 parts of compatibilizer, 1 part of antioxidant, 0.3 part of polymerization inhibitor.

[0054] Internal mixing: Mix the above mixed powder with 5 parts of linear low density polyethylene, 35 parts of ethylene-vinyl acetate copolymer, and 20 parts of EPDM rubber.

[0055] Dynamic vulcanization: Cable material is obtained by two-stage extrusion after banburying. The processing temperature of each section of single screw is: 90°C, 110°C, 125°C, 145°C, 150°C, and the temperature of each section of twin screw is: 150°C, 140°C , 130°C, 125°C, 115°C, 110°C, 100°C, the extrusion time is 1-2min.

[0056] The cable material is melted and extruded on the conductive wire core of the cable to...

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Abstract

The invention relates to a high-short-circuit-resistant, low-smoke, halogen-free home improvement wire and cable material and a preparation method thereof. The prepared home improvement wire has high short-circuit resistance and low cost. The raw materials used in the present invention are linear low density polyethylene, ethylene-vinyl acetate copolymer, EPDM rubber, peroxide crosslinking agent, flame retardant, lubricant, compatibilizer, antioxidant, polymerization inhibitor agent. The specific preparation steps are (1) mixing: mixing the peroxide crosslinking agent with flame retardant, lubricant, compatibilizer, antioxidant, and polymerization inhibitor in a mixer for 5 minutes at a temperature of 50 to 60°C; (2 ) Internal mixing: uniformly mix linear low density polyethylene, ethylene-vinyl acetate copolymer, EPDM rubber and the mixed powder obtained in (1) in an internal mixer; (3) dynamic vulcanization: after double Stage extrusion granulation, the processing temperature is 110℃~150℃, and the extrusion time is 1~2min.

Description

technical field [0001] The invention belongs to the field of wire and cable materials, and relates to a high-short-circuit-resistant, low-smoke, halogen-free home improvement wire and cable material and a preparation method thereof. Background technique [0002] Linear low density polyethylene and ethylene-vinyl acetate copolymer are often used in home improvement wire and cable materials due to their excellent performance. However, home improvement wires will have short-circuit problems in practical applications. When the home improvement wires are short-circuited, the cable insulation layer will fall off, which is prone to electric shock accidents and fires. Therefore, for the safety of household electricity use, it is necessary to be able to improve the short-circuit resistance of home improvement wires. [0003] Cross-linking technology can improve the short-circuit resistance of home improvement wire and cable materials, protect the safety of household electricity, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/16C08L51/06C08K5/14C08K3/22C08K5/098C08K5/134C08K13/02C08J3/24H01B3/44
CPCC08L23/0853C08J3/246H01B3/441C08K2003/2227C08K2003/2224C08L2201/22C08L2201/02C08L2205/035C08L2205/02C08L2203/202C08L2312/00C08J2323/08C08J2423/08C08J2423/16C08L23/0815C08L23/16C08L51/06C08K5/14C08K3/22C08K5/098C08K5/1345C08K13/02
Inventor 刘力梁文利李建平张士丞储俊峰冯予星
Owner 江苏北化新橡新材料科技有限公司
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