Fire retardant, preparation method thereof and application thereof in polyvinyl chloride (PVC) wire and cable materials

A flame retardant and reaction technology, applied in the field of flame retardant for PVC wire and cable material and its preparation, can solve the problems of large addition amount, deterioration of flame retardant product performance, low flame retardant effect, etc. Excellent flame retardant properties, easy to store

Active Publication Date: 2013-08-28
JIANGSU DEWEI ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chlorinated paraffins used for flame-retardant PVC produced in my country mainly include chlorinated paraffin-42, chlorinated paraffin-52, and chlorinated paraffin-70. Chlorinated paraffins are more economical, but when used for flame-retardant and highly crystalline PVC, The performance of flame retardant products will be significantly deteriorated, resulting in a decrease in crystallinity
Aluminum hydroxide and magnesium hydroxide are additive inorganic flame retardants. Although their raw materials are easy to obtain and the production cost is low, they are good flame retardants for flame-retardant PVC. Disadvantages of low combustion effect

Method used

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  • Fire retardant, preparation method thereof and application thereof in polyvinyl chloride (PVC) wire and cable materials
  • Fire retardant, preparation method thereof and application thereof in polyvinyl chloride (PVC) wire and cable materials
  • Fire retardant, preparation method thereof and application thereof in polyvinyl chloride (PVC) wire and cable materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This example provides a flame retardant, which is prepared through the following steps:

[0031] (1) 3.78g bis-imidazolium ionic liquid monomer ( ) and 1.42gNa 2 HPO 4 Added to 100ml of acetone, stirred and reacted at room temperature for 48 hours, filtered, and rotary evaporated to obtain product a;

[0032] (2) Dissolve 1 g of product a in ethanol, add 0.02 g of azobisisobutyronitrile, and react in an inert gas atmosphere at 60°C for 24 hours, then pour the reaction system into acetone, and the product is precipitated, filtered, washed, The flame retardant is obtained after drying.

[0033] Gained flame retardant number average molecular weight Mn is 4200g / mol, Mw / Mn value is 2.14, and its gel permeation chromatogram curve sees figure 1 .

Embodiment 2

[0035] This example provides a flame retardant, which is prepared through the following steps:

[0036] (1) 3.78g bis-imidazolium ionic liquid monomer ( ) and 2.4gNaH 2 PO 4 Added to 100ml of acetone, stirred and reacted at room temperature for 72 hours, filtered, and rotary evaporated to obtain product a;

[0037] (2) Dissolve 1 g of product a in ethanol, add 0.005 g of azobisisobutyronitrile, and react in an inert gas atmosphere at 75°C for 5 hours, then pour the reaction system into acetone, and the product is precipitated, filtered, washed, Dry to flame retardant.

[0038] Gained flame retardant number average molecular weight Mn is 7100g / mol, and Mw / Mn value is 1.27, and its gel permeation chromatogram curve sees figure 1 .

Embodiment 3

[0040] This example provides a flame retardant, which is prepared through the following steps:

[0041] (1) 3.78g bis-imidazolium ionic liquid monomer ( ) and 2.02gNa 2 B 4 o 7 Added to 100ml of acetone, stirred and reacted at room temperature for 72 hours, filtered, and rotary evaporated to obtain product a;

[0042] (2) Dissolve 1 g of product a in ethanol, add 0.02 g of azobisisobutyronitrile, react in an inert gas atmosphere at 65°C for 10 hours, then pour the reaction system into acetone, and the product is precipitated, filtered, washed, Serve dry.

[0043] Gained flame retardant Mn is 8050g / mol, and Mw / Mn value is 1.31, and its gel permeation chromatogram curve is shown in figure 1 .

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Abstract

The invention relates to a fire retardant, a preparation method thereof and an application thereof in PVC wire and cable materials. The fire retardant has a general structural formula as shown in a formula (I), wherein in the formula (I), m and p are independently an integer from 1 to 5, X is selected from one of HPO4<2->, H2PO4<->, B4O7<2->, SCN<->, N(CN)2< ->, NO3<->, C(CN)3<-> and B(CN)4<->, a number-average molecular weight of the fire retardant is 4000-15000 g / mol, and a polymeric dispersion index is 1.25-2.2. Compared with prior art, the fire retardant designed by the invention is especially suitable for application in the PVC cable materials, gives excellent flame retardation performance to the cable materials, and meanwhile will not cause degradation of other performances of the cable materials. The preparation method of the fire retardant is simple, and the fire retardant is easy to prepare, convenient to preserve and does not pollute the environment.

Description

technical field [0001] The invention relates to a flame retardant, in particular to a flame retardant for polyvinyl chloride wire and cable materials and a preparation method thereof. Background technique [0002] Most polymer materials are flammable and combustible materials. During the combustion process, the flame spreads quickly, generates a lot of heat, smoke and releases hydrogen chloride, hydrogen fluoride, carbon monoxide and other toxic gases. Therefore, flame retardant treatment of polymer materials has attracted more and more attention. As we all know, polyvinyl chloride (PVC) has been developed rapidly due to its good performance and processing performance, but at the same time, its wide application is limited due to the huge loss of people's lives and property caused by a large amount of smoke and poisonous gas when it is burned. . Therefore, the flame retardant and smoke suppression of PVC has always been concerned by people, and it is an urgent problem to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F126/06C08L39/04C08L27/06
CPCY02P20/54
Inventor 邓之俊陈敏戴红兵栾珊珊
Owner JIANGSU DEWEI ADVANCED MATERIALS
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