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CMR grade PVC (Polyvinyl Chloride) cable material as well as preparation method and application thereof

A technology of cable material and PVC resin, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor plasticization efficiency of flame-retardant plasticizers, hard data lines, and difficult data lines, etc., to achieve Effects of reducing hardness, improving softness, and improving flame retardancy

Inactive Publication Date: 2018-01-19
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plasticizers added to traditional CMR-grade PVC cable materials are less common flammable plasticizers, and a large amount of flame-retardant plasticizers are added, and the plasticizing efficiency of flame-retardant plasticizers is very poor, eventually causing The hardness of the product is relatively large (the hardness of CMR products is generally above Shore hardness of 90A), and the data lines made are relatively hard and not easy to bend, so the final installation and laying of such data lines is more difficult than conventional data lines

Method used

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  • CMR grade PVC (Polyvinyl Chloride) cable material as well as preparation method and application thereof
  • CMR grade PVC (Polyvinyl Chloride) cable material as well as preparation method and application thereof
  • CMR grade PVC (Polyvinyl Chloride) cable material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of CMR level PVC cable material of the present embodiment comprises the following components by weight:

[0021]

[0022]

[0023] Among them, the PVC resin is an environmentally friendly SG-3 type PVC resin with a polymerization degree of 1300.

[0024] The mesh number of aluminum hydroxide is 3000 mesh.

[0025] The purity of antimony trioxide is 99.8%.

[0026] A kind of preparation method of above-mentioned CMR grade PVC cable material, comprises the steps:

[0027] S1: PVC resin, dioctyl tetrabromophthalic anhydride, dioctyl terephthalate, diethylene glycol benzoate, magnesium carbonate, aluminum hydroxide, polyethylene wax, stearic acid, calcium zinc composite stabilizer, Antimony trioxide is added to the high mixer for mixing and plasticizing;

[0028] S2: Put the uniformly stirred raw materials directly into the twin-screw extruder for extrusion processing; then extrude and granulate through the single-screw extrusion granulator;

[0029] S3: Th...

Embodiment 2

[0031] A kind of CMR level PVC cable material of the present embodiment of the present embodiment comprises the following components by weight:

[0032]

[0033]

[0034] Among them, the degree of polymerization of PVC resin is 1400.

[0035] The mesh number of aluminum hydroxide is 4000 mesh.

[0036] The purity of antimony trioxide is 99.9%.

[0037] A kind of preparation method of above-mentioned CMR grade PVC cable material, comprises the steps:

[0038] S1: PVC resin, dioctyl tetrabromophthalic anhydride, dioctyl terephthalate, diethylene glycol benzoate, magnesium carbonate, aluminum hydroxide, polyethylene wax, stearic acid, calcium zinc composite stabilizer, Antimony trioxide is added to the high mixer for mixing and plasticizing;

[0039] S2: Put the uniformly stirred raw materials directly into the twin-screw extruder for extrusion processing; then extrude and granulate through the single-screw extrusion granulator;

[0040] S3: The extruded finished produc...

Embodiment 3

[0042] A kind of CMR level PVC cable material of the present embodiment of the present embodiment comprises the following components by weight:

[0043]

[0044]

[0045] Among them, the PVC resin is an environmentally friendly SG-3 type PVC resin with a polymerization degree of 1500.

[0046] The mesh number of aluminum hydroxide is 5000 mesh.

[0047] The purity of antimony trioxide is 99.8%.

[0048] A kind of preparation method of above-mentioned CMR grade PVC cable material, comprises the steps:

[0049] S1: PVC resin, dioctyl tetrabromophthalic anhydride, dioctyl terephthalate, diethylene glycol benzoate, magnesium carbonate, aluminum hydroxide, polyethylene wax, stearic acid, calcium zinc composite stabilizer, Antimony trioxide is added to the high mixer for mixing and plasticizing;

[0050] S2: Put the uniformly stirred raw materials directly into the twin-screw extruder for extrusion processing; then extrude and granulate through the single-screw extrusion gr...

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Abstract

The invention discloses a CMR grade PVC (Polyvinyl Chloride) cable material which comprises the following components in parts by weight: 100 parts of PVC resin, 5-20 parts of dioctyl tetrabromophthalate, 2-30 parts of dioctyl terephthalate, 1-20 parts of diethylene glycol benzoate, 1-30 parts of magnesium carbonate, 10-30 parts of aluminum hydroxide, 0.1-0.5 part of polyethylene wax, 0.1-0.2 partof stearic acid, 1-5 parts of a calcium-zinc composite stabilizer and 3-8 parts of antimonous oxide. According to the CMR grade PVC cable material disclosed by the invention, by utilizing matched useof antimonous oxide and magnesium carbonate, the flame retardant property of the product is greatly improved; by utilizing a synergistic effect achieved by the dioctyl tetrabromophthalate and diethylene glycol benzoate, the product plasticization performance is improved, and the hardness of the CMR grade PVC cable material is reduced while ensuring that the product has the flame retardant propertymeeting the requirements. Compared with the traditional CMR grade PVC cable material, the CMR grade PVC cable material disclosed by the invention has excellent flexibility.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a CMR grade PVC cable material and a preparation method and application thereof. Background technique [0002] As society pays more and more attention to fire hazards, the fire resistance of cables is also required to be higher, and the key factor affecting the flame retardancy of cables is the flame retardancy of wire sheathing materials. In order to ensure the cable flame retardant effect of the building wiring system, UL (U.S. Underwriters Laboratories) has classified the cable flame retardant grades according to CMP, CMR, CM, and CMX. Among them, the CMR-grade cable is the second-ranked flame-retardant cable. It must pass the UL1666 intensive flame test, and the main cable in the cable shaft is laid in the same way. CMR level cables have no smoke density requirements, and are generally used for vertical and horizontal wiring on floors, and have a very wide range of applicatio...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08K13/02C08K3/22C08K3/26C08K5/103C08K5/12H01B3/44
Inventor 于德宝
Owner SUZHOU HENGLI COMM MATERIAL
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