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High-molecular plastic particles for cable and preparation method for high-molecular plastic particles

A technology of plastic particles and polymers, applied in the field of polymer plastic particles for cables and their preparation, can solve the problems of low elongation at break, low impact strength, low tensile strength, etc., and achieve high elongation at break, The effect of high impact strength and high tensile strength

Inactive Publication Date: 2015-09-23
SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem to be solved: the purpose of this invention is to disclose a polymer plastic particle for cable and its preparation method, which can effectively solve the problem of low tensile strength, low elongation at break and low impact strength of conventional cable polymer plastic particles. to improve the corresponding performance of polymer plastic particles for cables

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Take 35 parts of low-density polyethylene, 6 parts of silane cross-linked polyethylene, 20 parts of neoprene, 7 parts of polyphthalamide, 9 parts of polyparaben, α-cyanide by weight 4.5 parts of n-butyl acrylate, 5.5 parts of dibutyltin dilaurate, 5 parts of tributyl borate, and 2 parts of dioctyl phthalate. Medium pre-mixing for 40 minutes, the speed of the high-speed mixer is 200r / min, mix well and set aside;

[0040] (2) Extrude the mixed material in step (1) with a twin-screw extruder. The aspect ratio of the twin-screw extruder is 30:1, and the head temperature of the twin-screw extruder is 180°C. The twin-screw extrusion temperature is divided into four zones: the temperature of the first zone is 170°C, the temperature of the second zone is 175°C, the temperature of the third zone is 205°C, and the temperature of the fourth zone is 220°C;

[0041] (3) After granulating the material extruded by twin-screws, polymer plastic particles for cables are prepared.

...

Embodiment 2

[0044] (1) Take 25 parts of low-density polyethylene, 13 parts of silane cross-linked polyethylene, 12 parts of neoprene, 4 parts of polyphthalamide, 3 parts of polyparaben, α-cyanide by weight 1.5 parts of n-butyl acrylate, 2.5 parts of dibutyltin dilaurate, 2 parts of tributyl borate, and 5 parts of dioctyl phthalate. Intermediate pre-mixing for 15 minutes, the speed of the high-speed mixer is 100r / min, mix well and set aside;

[0045] (2) Extrude the mixture after step (1) is uniformly mixed with a twin-screw extruder. The length-to-diameter ratio of the twin-screw extruder is 20:1, and the head temperature of the twin-screw extruder is 160°C. The twin-screw extrusion temperature is divided into four zones: the temperature of the first zone is 155°C, the temperature of the second zone is 185°C, the temperature of the third zone is 190°C, and the temperature of the fourth zone is 215°C;

[0046] (3) After granulating the material extruded by twin-screws, polymer plastic par...

Embodiment 3

[0049] (1) Take 33 parts of low-density polyethylene, 8 parts of silane cross-linked polyethylene, 18 parts of neoprene, 5 parts of polyphthalamide, 4 parts of polyparaben, α-cyanide by weight 2.5 parts of n-butyl acrylate, 4.5 parts of dibutyltin dilaurate, 3 parts of tributyl borate, and 4 parts of dioctyl phthalate. Medium pre-mixing for 40 minutes, the speed of the high-speed mixer is 200r / min, mix well and set aside;

[0050] (2) Extrude the mixed material in step (1) with a twin-screw extruder. The aspect ratio of the twin-screw extruder is 30:1, and the head temperature of the twin-screw extruder is 180°C. The twin-screw extrusion temperature is divided into four zones: the temperature of the first zone is 170°C, the temperature of the second zone is 175°C, the temperature of the third zone is 205°C, and the temperature of the fourth zone is 220°C;

[0051] (3) After granulating the material extruded by twin-screws, polymer plastic particles for cables are prepared.

...

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Abstract

The invention discloses high-molecular plastic particles for a cable and a preparation method for the high-molecular plastic particles. The plastic particles comprise the following components in parts by weight: 25-35 parts of low density polyethylene, 6-13 parts of silane crosslinked polyethylene, 12-20 parts of chloroprene rubber, 4-7 parts of polyphthalamide, 3-9 parts of polyhydroxybenzoate, 1.5-4.5 parts of alpha-n-butyl cyanoacrylate, 2.5-5.5 parts of dibutyltin dilaurate, 2-5 parts of tributyl borate and 2-5 parts of dioctyl phthalate. The preparation method comprises the following steps of: (1) uniformly mixing the materials in a high speed mixer for later use; (2) then extruding the mixed materials which are uniformly mixed by a twin-screw extruder; and (3) granulating the materials which are extruded by the twin-screw extruder to prepare the high-molecular plastic particles for the cable. The prepared high-molecular plastic particles for the cable are suitable for a cable sheath material.

Description

technical field [0001] The invention belongs to the field of cable materials, and relates to a polymer plastic particle for cables and a preparation method thereof. Background technique [0002] With the continuous expansion of China's electric power industry, data communication industry, urban rail transit industry, automobile industry and shipbuilding and other industries, the demand for wire and cable will also grow rapidly, and the wire and cable industry still has huge development potential in the future. [0003] Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables and so on. They are all composed of multiple strands of wires and are used to connect circuits, electrical appliances, etc. [0004] Resin is widely used as insulation and sheath material in the manufacture of wire and cable, all of which are thermoplastics. Commonly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L11/00C08L67/04C08L77/06C08K5/12C08K5/57C08K5/55B29C47/92H01B3/44B29C48/92
CPCC08L23/06B29C48/92B29C2948/92704C08L2203/202C08L2205/025C08L2205/035C08L2207/066C08L2312/08H01B3/441C08L11/00C08L67/04C08L77/06C08K5/12C08K5/57C08K5/55
Inventor 邹黎清
Owner SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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