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A kind of low-shrinkage cable material resin and preparation method thereof

A cable material resin and low-shrinkage technology, applied in the field of low-shrinkage cable material resin and its preparation, can solve the problems of low volume shrinkage, poor oil resistance, poor wear resistance, etc., achieve high reactivity, solve poor shrinkage resistance, and wide Market Space Effects

Active Publication Date: 2022-03-15
东莞市聚都盛高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of low-shrinkage cable material resin and its preparation method, which uses 1,3-dioxane-5 ,5-Dimethyl-(9CI) derivative (A), 2-hydroxymethyl-1,3 propanediol (B), epichlorohydrin (C) and diisocyanate (D) were used as raw materials to prepare The new low-shrinkage cable material resin with orthoester structure effectively improves the wear resistance and oil resistance of cable material materials, and at the same time has the advantage of low volume shrinkage. It can be expected that this product will be used in special cables, especially 5G There will be a broad market space in the field of communication cables

Method used

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  • A kind of low-shrinkage cable material resin and preparation method thereof
  • A kind of low-shrinkage cable material resin and preparation method thereof
  • A kind of low-shrinkage cable material resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Step (1) 1mol 1,3-dioxane-2,2-diethoxy-5,5-dimethyl-(9CI)(A), 1mol 2-hydroxymethyl-1,3 propanediol (B), 3wt% potassium carbonate is mixed and dissolved in 20mol toluene, stirred for 3h at 70°C, left to stand, filtered, and distilled under reduced pressure at 40°C to obtain the intermediate product I (IR: 1204cm -1 、1105cm -1 : spiro-C-O-C-existence; 3315cm -1 : -OH exists; 2963cm -1 :-CH 3 exist);

[0053] The dosage of potassium carbonate is 3wt% of the mass of 1,3-dioxane-2,2-diethoxy-5,5-dimethyl-(9CI).

[0054] Step (2) 1mol I is added to the solution containing 3wt% BF 3 In 1.2mol epichlorohydrin (C) in diethyl ether, heat to 80°C, react for 2h; stand still, and distill under reduced pressure at 40°C to obtain intermediate product II (IR: 1204cm -1 、1105cm -1: spiro-C-O-C-existence; 3393cm -1 : -OH exists; 747cm -1 :-C-Cl exists);

[0055] The BF 3 Ether consumption is 3wt% of 1 quality.

[0056] Step (3) Add 1.2 mol of sodium hydroxide to 1 mol of II, ...

specific Embodiment 2-6

[0060] Specific embodiment 2-6, other are with specific embodiment 1, difference is following table:

[0061]

[0062]

[0063] The low-shrinkage cable material resin obtained in Example 1 is used as the base material of the application example, and processed to form a low-shrinkage cable sheath.

[0064] The flame retardant described in the present invention is magnesium hydroxide and aluminum hydroxide in a mass ratio of 3:1; the antioxidant is tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxyphenyl) Propionic acid] pentaerythritol ester; filler: nano-titanium dioxide; curing accelerator: N,N-dihydroxypropyl-p-toluidine.

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Abstract

The invention belongs to the field of new materials, and in particular relates to a low-shrinkage cable material resin and a preparation method thereof. The method uses 1,3-dioxane-5,5-dimethyl-(9CI) derivative (A), 2-hydroxymethyl-1,3 propanediol (B), epichlorohydrin (C) With diisocyanate (D) as a raw material, through multi-step reactions such as transesterification, ring opening, ring formation, and polycondensation, a new type of low-shrinkage cable material resin containing a spiro-ring orthoester structure is prepared, which can effectively improve the wear resistance of cable materials. , Insufficient oil resistance, but also has the advantage of low volume shrinkage, it can be expected that this product will have a broad market space in the field of special cables, especially 5G communication cables.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a low-shrinkage cable material resin and a preparation method thereof. Background technique [0002] As we all know, at the end of the 1980s in China, the development of low-smoke, low-halogen, low-acid, halogen-free flame-retardant cable material formulations and products has begun. Some manufacturers have produced low-smoke, halogen-free flame-retardant cable materials, but most of them have mechanical properties. and poor processing performance. The high-end cable materials currently used still rely on imports to a certain extent. [0003] The current situation of my country's cable industry is that quality problems are becoming more and more serious. The wire and cable manufacturing industry has developed excessively extensively. The overall production capacity of wire and cable is seriously overcapacitated. The utilization rate of ordinary wire and cable production ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/32C08L75/08C08L75/06C08L23/06
CPCC08G18/3218C08L75/08C08L75/06C08L2203/202C08L2207/062C08L23/06
Inventor 刘涛
Owner 东莞市聚都盛高分子科技有限公司
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