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High-strength low-smoke flame-retardant composite rubber and preparation method thereof

A low-smoke flame-retardant, compound rubber technology, applied in the field of cable manufacturing, can solve the problems of high hygroscopicity and great influence on the mechanical properties of engineering plastics, and achieve the effects of good mechanical properties, high promotion and application value, and easy availability of raw materials

Inactive Publication Date: 2018-10-23
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 flame retardant composition, the preparation method comprising the following steps: (1) mixing montmorillonite with ethanol, then impregnating it in a titanium tetrachloride solution, and 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 (3) The modified montmorillonite, nano active agent, antimony trioxide and ammonium polyphosphate are mixed in proportion.

[0013] Through the above technical scheme, the flame retardant composition for cables provided by the present invention uses modified montmorillonite 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 retardancy, The advan...

preparation example 1

[0044] The preparation method of flame retardant composition, comprises the following steps:

[0045] (1) Mix montmorillonite 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, heat to reflux at 90°C, Obtain gel-like mixture; In terms of mass parts, relative to 10 parts of montmorillonite, 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, aluminum chloride The dosage is 1 part; wherein, the concentration of titanium tetrachloride in the titanium tetrachloride solution is 3g / mL; wherein, the quaternary phosphorus salt is tetrakis hydroxymethyl phosphorus sulfate;

[0046] (2) calcining the gel-like mixture at 200° C. for 3 h, and pulverizing by ball milling to obtain quaternary phosphorus-aluminum-doped modified montmorillonite;

[004...

preparation example 2

[0050] The preparation method of flame retardant composition, comprises the following steps:

[0051] (1) Mix montmorillonite with ethanol, then immerse in titanium tetrachloride solution at 60°C for 2h, then adjust the pH to 5 with hydrochloric acid, then add quaternary phosphorus salt and aluminum chloride, heat and reflux at 120°C, Obtain gel-like mixture; In parts by mass, relative to 10 parts of montmorillonite, 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, aluminum chloride The consumption is 3 parts; Wherein, the concentration of titanium tetrachloride in the titanium tetrachloride solution is 5g / mL; Wherein, quaternary phosphorus salt is tetrakis hydroxymethyl phosphorus chloride;

[0052] (2) calcining the gel mixture at 280° C. for 1.5 h, and pulverizing by ball milling to obtain quaternary phosphorus-aluminum-doped modified montmorillonite;

[0053] ...

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Abstract

High-strength low-smoke flame-retardant composite rubber is disclosed. By using modified montmorillonite as the main material and with the cooperation of a nanometer activator, antimony oxide, ammonium polyphosphate and other flame-retardant additives, a flame-retardant composition used for the high-strength low-smoke flame-retardant composite rubber has advantages of high flame retardation, low price and low smoke in the combustion process. By banburying of fluororubber, the flame-retardant composition, a molybdenum-based catalyst, an anti-aging agent, polyvinyl acetate, diethyl ethylphosphonate and a vulcanizing agent, rubber with good low-smoke flame retardant property can be prepared, and the prepared rubber has good mechanical properties. In addition, the preparation method of the high-strength low-smoke flame-retardant composite rubber is simple, raw materials are easily available, and the product has high promotion and application value.

Description

technical field [0001] The invention relates to the field of cable manufacturing, in particular to a high-strength low-smoke flame-retardant composite rubber 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L31/04C08K13/06C08K9/04C08K9/02C08K3/34C08K3/22C08K3/32
CPCC08L27/12C08K2003/222C08K2003/2227C08K2003/2296C08K2003/323C08K2201/011C08L2201/02C08L31/04C08K13/06C08K9/04C08K9/02C08K3/346C08K3/22C08K3/2279C08K3/32
Inventor 章新能佘晨徐慧李遥
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
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