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Modified kaolin flame-retardant composition for cables and preparation method thereof

A flame retardant composition, kaolin technology, applied in rubber insulators, organic insulators and other directions, can solve the problems of high hygroscopicity, great influence on mechanical properties of engineering plastics, etc., achieve good mechanical properties, high promotion and application value, good low smoke The effect of flame retardant properties

Inactive Publication Date: 2018-10-09
WUHU HANGTIAN SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also corresponding disadvantages. Due to the low degree of polymerization of the current process, it has relatively high hygroscopicity and has a great influence on the mechanical properties of engineering plastics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0012] In order to achieve the above object, the present invention provides a method for preparing a modified kaolin flame retardant composition for cables, the preparation method comprising the following steps: (1) mixing kaolin with ethanol, then dipping in a titanium tetrachloride solution, Then adjust the pH to 2-5, then add quaternary phosphorus salt and aluminum chloride, and heat to reflux to obtain a gel-like mixture; (2) Calcinate and pulverize the gel-like mixture to obtain a quaternary phosphorus-aluminum-doped Modified kaolin; (3) mixing modified kaolin, nano active agent, antimony trioxide and ammonium polyphosphate in proportion.

[0013] Through the above technical scheme, the modified kaolin flame retardant composition for cables provided by the present invention uses modified kaolin as the main ingredient, and is combined with flame retardant additives such as nano active agents, antimony trioxide and ammonium polyphosphate, and has high flame retardant propert...

Embodiment 1

[0028] A preparation method for a modified kaolin flame retardant composition for cables, comprising the following steps:

[0029] (1) Mix kaolin with ethanol, then immerse in titanium tetrachloride solution at 50°C for 4h, then adjust the pH to 2 with hydrochloric acid, then add quaternary phosphorus salt and aluminum chloride, and heat to reflux at 90°C to obtain condensate Colloidal mixture; in parts by mass, relative to 10 parts of kaolin, the consumption of ethanol is 100 parts, the consumption of titanium tetrachloride solution is 30 parts, the consumption of quaternary phosphorus salt is 1 part, and the consumption of aluminum chloride is 1 part Parts; wherein, the concentration of titanium tetrachloride in the titanium tetrachloride solution is 3g / mL; wherein, the quaternary phosphorus salt is tetrakis hydroxymethyl phosphorus sulfate;

[0030] (2) calcining the gel-like mixture at 200° C. for 3 h, and pulverizing by ball milling to obtain quaternary phosphorus-aluminu...

Embodiment 2

[0034] A preparation method for a modified kaolin flame retardant composition for cables, comprising the following steps:

[0035](1) Mix kaolin with ethanol, then immerse in titanium tetrachloride solution at 60°C for 2 hours, then adjust the pH to 5 with hydrochloric acid, then add quaternary phosphorus salt and aluminum chloride, and heat to reflux at 120°C to obtain the condensate Colloidal mixture; in parts by mass, relative to 10 parts of kaolin, the consumption of ethanol is 150 parts, the consumption of titanium tetrachloride solution is 50 parts, the consumption of quaternary phosphorus salt is 2 parts, and the consumption of aluminum chloride is 3 parts Parts; wherein, the concentration of titanium tetrachloride in the titanium tetrachloride solution is 5g / mL; wherein, the quaternary phosphorus salt is tetrakis hydroxymethyl phosphorus chloride;

[0036] (2) calcining the gel-like mixture at 280° C. for 1.5 h, and pulverizing by ball milling to obtain quaternary phos...

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Abstract

The invention discloses a modified kaolin flame-retardant composition for cables and a preparation method thereof. The modified kaolin flame-retardant composition for cables is mainly made with modified kaolin in conjunction with a nano activator, antimony trioxide, ammonium polyphosphate and other flame-retardant aids; the modified kaolin flame-retardant composition for cables has the advantagesof good flame retardancy, low cost, and little smoke generated during combustion; the modified kaolin flame-retardant composition for cables can be applied to the preparation of rubber to impart goodlow-smoke and flame-retarding properties to prepared rubber, and good mechanical properties to the same. The preparation method of the composition is simple, allows the raw materials to be easily acquired and has high popularization and application value.

Description

technical field [0001] The invention relates to the field of cable manufacturing, in particular to a modified kaolin flame retardant composition for cables and a preparation method thereof. Background technique [0002] Generally speaking, a cable is made of one or more mutually insulated conductors and an outer insulating layer, which transmits power or information from one place to another. With the rapid development of the economy, more and more places need cables to transmit power or other information, so there are stricter requirements for the manufacture of cables. The sheath of the cable is an indispensable structural part of the cable, which plays the role of protecting the cable, ensuring the safety of the cable, and insulating the cable core from water, air and other media to avoid leakage. Resin is the main material for the preparation of cable sheaths, so the properties of the resin directly determine the properties of the prepared cable sheaths. [0003] The c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/02C08K9/04C08K3/34C08K3/22C08K3/32C08K3/38C08L27/12C08L31/04C08K13/06H01B3/28
Inventor 章新能贾倩倩何想想胡亚飞
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
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