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: 2020-06-23
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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  • Low-shrinkage cable material resin and preparation method thereof
  • Low-shrinkage cable material resin and preparation method thereof
  • 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 was mixed and dissolved in 20mol of toluene, stirred for 3h at 70℃, stood still, filtered, and distilled under reduced pressure at 40℃ to obtain intermediate product I (IR: 1204cm -1 , 1105cm -1 : Spiro-C-O-C- exists; 3315cm -1 : -OH exists; 2963cm -1 : -CH 3 exist);

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

[0054] Step (2) Add 1mol I to the 3wt% BF 3 In 1.2mol epichlorohydrin (C) of ether, heat to 80℃, react for 2h; let stand, and distill under reduced pressure at 40℃ to obtain intermediate product II (IR: 1204cm -1 , 1105cm -1 :Spiro-C-O-C- exists; 3393cm -1 : -OH exists; 747cm -1 : -C-Cl exists);

[0055] The BF 3 The amount of ether is 3wt% of I mass.

[0056] Step (3) Add 1.2 mol of sodium hydroxide to 1 mol of II, stir at 80°C for 0.5 h, and wash with deionized water three t...

specific Embodiment 2-6

[0060] Specific embodiments 2-6, and others are the same as specific embodiment 1, except for the following table:

[0061]

[0062]

[0063] Using the low-shrinkage cable material resin obtained in Example 1 as the basic material of the application example, it was processed into a low-shrinkage cable sheath.

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

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Abstract

The invention belongs to the field of new materials, and particularly relates to low-shrinkage cable material resin and a preparation method thereof. According to the method, a 1, 3-dioxane-5, 5-dimethyl-(9CI) derivative (A), 2-hydroxymethyl-1, 3-propylene glycol (B), epichlorohydrin (C) and diisocyanate (D) are used as raw material, and the novel low-shrinkage cable material resin containing thespiro orthoester structure is prepared through ester exchange, ring opening, ring forming, polycondensation and other reactions. The wear resistance and oil resistance of the cable material are effectively improved, the resin has the advantage of low volume shrinkage, and the product is expected to have wide 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 specifically relates to a low-shrinkage cable material resin and a preparation method thereof. Background technique [0002] As we all know, the domestic low-smoke, low-halogen, low-acid, halogen-free flame-retardant cable material formulations and products have been developed in the late 80s. 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 the quality problem is becoming more and more serious. The wire and cable manufacturing industry has developed excessively and extensively. The overall production capacity of wire and cable is seriously surplus. The utilization rate of ordinary wire and cable production equipment is generally l...

Claims

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Application Information

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Patent Type & Authority Applications(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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