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Fire retardant preparation method

A flame retardant and surface treatment agent technology, applied in the field of preparation of new magnesium hydroxide flame retardant, can solve the problems of long process, high cost, high temperature and pressure, etc.

Inactive Publication Date: 2013-06-05
孟宪清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still disadvantages such as long process, high temperature and pressure, small product output, high cost, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0005] Dissolve 100 grams of crystalline magnesium sulfate in 200 milliliters of distilled water and add it to a stainless steel stirred reactor. The reactor is placed in a constant temperature water bath, add 150 milliliters of ammonia water and 30 milliliters of surface treatment agent, and react for 40 minutes at normal pressure and 35 ° C. , raised the temperature to 100°C, treated at a constant temperature for 3 hours, then cooled to 30°C, and kept at this constant temperature for 5 hours to achieve the purpose of aging, then filtered, washed, and dried at 100°C for 3 hours to obtain a magnesium hydroxide flame retardant.

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Abstract

The invention discloses magnesium hydrate fire retardant preparation technology. Magnesium sulfate heptahydrate crystals are dissolved into distilled water, and the magnesium sulfate heptahydrate crystals and the distilled water are added into a stirring reactor which is arranged in constant-temperature water bath. A proper amount of ammonia water and surface treating agents are added. Under regular pressure and a temperature of 35 DEG C, reacting is conducted for a certain period. The temperature is raised to 100 DEG C. After constant-temperature processing for a certain period, magnesium hydrate fire retardant is formed after cooling, aging, filtering, cleaning and drying. The magnesium hydrate fire retardant preparation technology has the advantages of being short in process, simple in equipment, moderate in operational condition, low in cost and the like.

Description

technical field [0001] The invention belongs to the technical field of engineering materials, and more specifically relates to a preparation technology of a novel magnesium hydroxide flame retardant. Background technique [0002] Although the traditional magnesium hydroxide flame retardant preparation process is constantly improving, it has not got rid of the three-step process of normal temperature synthesis, hydrothermal treatment, and surface modification. There are still disadvantages such as long process, high temperature and pressure, low product output and high cost. Contents of the invention [0003] The purpose of the invention is to overcome the defects of the prior art, to provide a new preparation technology for magnesium hydroxide flame retardant, utilize the technical method to use magnesium sulfate as raw material, prepare flame-retardant magnesium hydroxide with one-step method, do not produce harmful Gas, does not affect the electrical insulation of the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F5/20C09K21/02
Inventor 孟宪清
Owner 孟宪清
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