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Composite flame retardant for pipe

A technology for compounding flame retardants and pipes, applied in the field of flame retardants, can solve problems such as large specific gravity, gas explosion, easy corrosion, etc., and achieve the effects of high flame retardant performance, safe use and improved safety performance.

Inactive Publication Date: 2015-10-28
RONGCHENG PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Steel pipes and cast iron pipes are prone to collisions and sparks in underground mines, which may cause gas explosions and are easy to corrode; the brittleness of glass steel pipes is difficult to solve, and they are easily damaged by impact. Transportation and installation are very inconvenient
Since the end of the 1980s, my country began to develop and apply polyethylene pipes for mining, but the grades of existing polyethylene pipes are relatively low, and generally can only reach MPE80 grades, and there is a large gap between various performance indicators and application requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First, prepare a composite flame retardant, put 13 parts of polyphosphoric acid, 9 parts of magnesium hydroxide, 6 parts of hypophosphorous acid, 8 parts of magnesium phosphate, and 7 parts of sodium fluoride into the reactor and stir and mix them at a temperature of 60 degrees. , the mixing speed is 120r / min, and a composite flame retardant is obtained after mixing.

Embodiment 2

[0022] First, prepare a composite flame retardant, put 9 parts of polyphosphoric acid, 5 parts of magnesium hydroxide, 3 parts of hypophosphorous acid, 4 parts of magnesium phosphate, and 5 parts of sodium fluoride into the reactor and stir and mix them at a temperature of 60 degrees. , the mixing speed is 120r / min, and a composite flame retardant is obtained after mixing.

Embodiment 3

[0024] First, prepare a composite flame retardant, put 22 parts of polyphosphoric acid, 10 parts of magnesium hydroxide, 10 parts of hypophosphorous acid, 12 parts of magnesium phosphate, and 15 parts of sodium fluoride into the reactor and stir and mix them at a temperature of 60 degrees. , the mixing speed is 120r / min, and a composite flame retardant is obtained after mixing.

[0025] Beneficial effects: the invention adopts a new type of formula and unique formula components to achieve effective flame retardancy, and the composite flame retardant prepared by the invention is applied on pipes, has high flame retardancy, is safe to use, and greatly improves safety performance.

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PUM

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Abstract

The invention discloses a composite flame retardant for a pipe. The composite flame retardant comprises, by mass, 9-22 parts of polyphosphoric acid, 5-10 parts of magnesium hydroxide, 3-10 parts of hypophosphorous acid, 4-12 parts of magnesium phosphate and 5-15 parts of sodium fluoride. According to the composite flame retardant, a novel formula is adopted, and effective inflaming retarding is achieved through unique formula components; by applying the composite flame retardant prepared through the method to the pipe, the flame retardant property is high, using is safe, and the safety performance is greatly improved.

Description

technical field [0001] The invention relates to a flame retardant, in particular to a composite flame retardant for pipes. Background technique [0002] Traditional mining pipes mainly include steel pipes, cast iron pipes and glass steel pipes. Steel pipes and cast iron pipes are prone to collisions and sparks in the underground, which may cause gas explosions and are easy to corrode; the brittleness of glass steel pipes is difficult to solve, and they are easily damaged by impact. Transportation and installation are very inconvenient. Since the end of the 1980s, my country has started the development and application of polyethylene pipes for mining, but the grades of existing polyethylene pipes are relatively low, and generally can only reach MPE80 grades, and there is a large gap between various performance indicators and application requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a composite fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/00C08K3/32C08K3/22C08K3/16C08L23/06
Inventor 朱加荣
Owner RONGCHENG PIPE IND