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A kind of radiation cross-linked CPE cable material and its preparation method and application

A technology for irradiation and cables, which is applied in the fields of irradiation cross-linked CPE cable materials and their preparation, high-elasticity irradiation cross-linked CPE cable materials and their preparations, and can solve the problems of two-phase interface defects, high surface energy, and difficulty in dispersing, etc. problems, to achieve the effect of good physical properties, high elongation, easy to popularize

Active Publication Date: 2022-05-13
JIANGSU DASHENG POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing related technologies, the composition of kaolin is unstable, which will lead to unstable performance of the cable when used as a filler, which is not conducive to use, and its price is relatively high for relatively pure kaolin, which will lead to higher costs when used to prepare cables , cannot be popularized
Calcium carbonate is a kind of wear-resistant inorganic filler, but due to the hydrophilic and oleophobic surface of calcium carbonate, large specific surface area, high surface energy, and easy agglomeration between particles, it is difficult to disperse evenly when directly or in large quantities filled with organic matrix materials. Moreover, the bonding force with the matrix is ​​very weak, resulting in two-phase interface defects and a decline in the overall performance of the composite material, making it difficult to truly industrially apply

Method used

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  • A kind of radiation cross-linked CPE cable material and its preparation method and application
  • A kind of radiation cross-linked CPE cable material and its preparation method and application
  • A kind of radiation cross-linked CPE cable material and its preparation method and application

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Effect test

Embodiment 1

[0048] Provide a kind of high elastic radiation cross-linked CPE cable material, its preparation raw material comprises by mass percentage:

[0049]

[0050]

[0051] Wherein, the particle size of the modified nano-calcium carbonate is 50nm; the chlorine content in the chlorinated polyethylene is 35%.

[0052] The preparation method is:

[0053] (1) Weigh each component of the formula amount, and the mixed material is melted and blended for 25 minutes at 160°C in an internal mixer, and then made into granules through a single-screw extruder. The single-screw extruder includes the first zone connected in sequence, The second zone, the third zone, the fourth zone, the fifth zone, the sixth zone and the seventh zone, the materials pass through each zone in turn, the working temperature of the first zone is set to 110°C, the working temperature of the second zone is 115°C, The working temperature of the third zone is 115°C, the working temperature of the fourth zone is 120°...

Embodiment 2

[0056] Provide a kind of high elastic radiation cross-linked CPE cable material, its preparation raw material comprises by mass percentage:

[0057]

[0058]

[0059] Wherein, the particle size of the modified nano-calcium carbonate is 50nm; the chlorine content in the chlorinated polyethylene is 35%.

[0060] The preparation method is:

[0061] (1) Weigh each component of the formula amount, use the internal mixer to melt and blend the mixed material for 20 minutes at 170° C., and then pass through a single-screw extruder to make granules, and the single-screw extruder includes sequentially connected first zone, the second zone, the third zone, the fourth zone, the fifth zone, the sixth zone and the seventh zone, the materials pass through each zone in turn, the working temperature of the first zone is set to 112°C, and the working temperature of the second zone is 118°C ℃, the working temperature of the third zone is 118 ℃, the working temperature of the fourth zone i...

Embodiment 3

[0064] Provide a kind of high elastic radiation cross-linked CPE cable material, its preparation raw material comprises by mass percentage:

[0065] Chlorinated polyethylene 50%, modified nano calcium carbonate 40%, polyethylene wax 2%, crosslinking agent 1%, silicone masterbatch 2%, antioxidant 2% and stabilizer 3%;

[0066] Wherein, the particle size of the modified nano-calcium carbonate is 50nm; the chlorine content in the chlorinated polyethylene is 35%.

[0067] The preparation method is:

[0068] (1) Weigh each component of the formula amount, and the mixed material is melted and blended for 15 minutes at 175° C. in an internal mixer, and then made into granules by a single-screw extruder, which includes the first connected in sequence. zone, the second zone, the third zone, the fourth zone, the fifth zone, the sixth zone and the seventh zone, the materials pass through each zone in turn, the working temperature of the first zone is set to 115°C, and the working temper...

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Abstract

The invention provides a radiation cross-linked CPE cable material and its preparation method and application. The raw materials for the preparation of the radiation crosslinked CPE cable material include: 30-50% of chlorinated polyethylene, 40-60% of modified nano-calcium carbonate, 1-5% of polyethylene wax and 0.5-5% of adhesive . The content of modified nano-calcium carbonate in the irradiation cross-linked CPE cable material provided by the present invention is relatively high, and the components are reasonably proportioned and coordinated with each other, so that the obtained material has high elongation and good elasticity. And the rest of the physical properties are excellent, and the flame retardancy and insulation also meet the standards of cable materials.

Description

technical field [0001] The invention belongs to the field of cable insulation materials, and relates to a radiation cross-linked CPE cable material and its preparation method and application, in particular to a highly elastic radiation cross-linked CPE cable material and its preparation method and application. Background technique [0002] Wires and cables have become an indispensable product in people's lives, and they have different requirements in different occasions. The rubber of traditional insulated cables is mainly divided into the following categories according to its formula: natural styrene-butadiene rubber, EPDM rubber, chlorinated polyethylene or chlorosulfonated polyethylene rubber. Among them, chlorinated polyethylene rubber is the most commonly used. Chlorinated polyethylene rubber is made of chlorinated polyethylene (CPE) as the main material, and is prepared by adding other compounding agents through continuous steam vulcanization reaction for vulcanization...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08L23/06C08L83/04C08K13/06C08K9/04C08K3/26C08K5/14C08K5/098C08K5/134H01B3/44
CPCC08L23/286H01B3/441C08L2203/202C08K2201/011C08K2003/265C08L2201/02C08L2201/08C08L2312/06C08K2201/014C08L23/06C08L83/04C08K13/06C08K9/04C08K3/26C08K5/14C08K5/098C08K5/1345
Inventor 潘卫东范魏魏周方方
Owner JIANGSU DASHENG POLYMER