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A kind of preparation method of brucite-based lightweight fire door filler

A brucite-based, fire-resistant door technology, applied in the field of building fire-proof and flame-proof, can solve the problems of poor strength and fire-proof combustion performance, not easy to use, and hinder the development of materials, so as to reduce the speed of heat release, facilitate installation and use, Effects that are easy to promote

Active Publication Date: 2020-10-09
阜南县民安人防工程设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many methods and techniques have been developed over time for the manufacture of fire rated doors and fire rated door cores, but most of these prior art designs are not well suited for fully automated manufacturing processes, fire rated doors currently on the market, including fire rated The core board and the fireproof finish layer covering the fireproof core board, the fireproof core board is made of aluminum silicate wool or expanded perlite wool as the main material, however, the fireproof core board of the fire door is made of aluminum silicate wool as the main material, and its The smoke produced is toxic; the fireproof core board of the fireproof door is mainly made of expanded perlite wool, which has poor strength and fireproof performance; and the metal material is not easy to use because the door is too heavy; therefore, a light weight , easy-to-use fire door core material with strong fire penetration resistance
[0003] Brucite is rich in reserves, has good smoke suppression and environmental protection, and has attracted much attention. However, due to the poor mechanical properties of brucite during use, it cannot meet the requirements of practical applications, which hinders the development of this material. Although there are Many materials have been studied on brucite, but its application in fire protection has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of brucite-based lightweight fire door filling material, comprising the following contents:

[0017] (1) Preparation of raw materials, in parts by weight, including 28 parts of brucite, 20 parts of rock wool or granular cotton, 5 parts of polyphosphoric acid, 10 parts of yew bark fiber, 2.7 parts of dodecyltrimethylsilane 1.5 parts of γ-methacryloxypropyltrimethoxysilane, 17 parts of graphite oxide colloid, 0.6 parts of foaming agent, and 0.2 parts of water reducing agent;

[0018] (2) Prepare γ-methacryloxypropyltrimethoxysilane into a solution with a mass concentration of 10.8%, add yew bark fiber, and treat it for 4 minutes at an ultrasonic frequency of 44kHz, and then use a stirring device to Stir at a speed of 100-120 rpm for 4 minutes, filter out the fibers, and dry at a temperature of 65°C to obtain material A for later use;

[0019] (3) Prepare polyphosphoric acid into a solution with a mass concentration of 16%, add brucite and treat it fo...

Embodiment 2

[0024] A preparation method of brucite-based lightweight fire door filling material, comprising the following contents:

[0025] (1) Preparation of raw materials, in parts by weight, including 25 parts of brucite, 24 parts of rock wool or granular cotton, 4 parts of polyphosphoric acid, 12 parts of yew bark fiber, 1.5 parts of dodecyltrimethylsilane 0.8 parts of γ-methacryloxypropyltrimethoxysilane, 16 parts of graphite oxide colloid, 0.5 parts of foaming agent, and 0.3 parts of water reducing agent;

[0026] (2) Prepare γ-methacryloxypropyltrimethoxysilane into a solution with a mass concentration of 15%, add yew bark fiber, and treat it for 4 minutes at an ultrasonic frequency of 42kHz, and then use a stirring device Stir at a speed of 100-120 rpm for 2 minutes, filter out the fibers, and dry at a temperature of 65°C to obtain material A for later use;

[0027] (3) Prepare polyphosphoric acid into a solution with a mass concentration of 15%, add brucite and treat it for 2 m...

Embodiment 3

[0032] A preparation method of brucite-based lightweight fire door filling material, comprising the following contents:

[0033] (1) Preparation of raw materials, in parts by weight, including 30 parts of brucite, 18 parts of rock wool or granular cotton, 6 parts of polyphosphoric acid, 8 parts of yew bark fiber, 3.4 parts of dodecyltrimethylsilane 2.2 parts of γ-methacryloxypropyltrimethoxysilane, 18 parts of graphite oxide colloid, 0.8 parts of foaming agent, and 0.1 part of water reducer;

[0034] (2) Prepare γ-methacryloxypropyltrimethoxysilane into a solution with a mass concentration of 8%, add yew bark fiber, and treat it for 3 minutes at an ultrasonic frequency of 42kHz, and then use a stirring device Stir at a speed of 100-120 rpm for 5 minutes, filter out the fibers, and dry at a temperature of 65°C to obtain material A for later use;

[0035] (3) Prepare polyphosphoric acid into a solution with a mass concentration of 18%, add brucite and treat it for 1 minute at a...

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Abstract

The invention belongs to the technical field of fire prevention and combustion resistance of buildings and in particular relates to a preparation method of a brucite-based lightweight fireproof door filling material. The preparation method comprises the steps of preparing raw materials, modifying fibers of taxus chinensis barks, modifying brucite and preparing the filling material. Compared with the prior art, the preparation method provided by the invention has the following advantages that the brucite is modified under specific conditions and has relatively good compatibility in a mixed material; a material A and graphite oxide colloid have a synergistic effect, so that the mechanical property of the obtained filling material is improved when compared with that of the brucite and the heat releasing speed is reduced; the whole material has a fine, dense and uniform micro-pore structure, so that the density of the material is reduced and the material has an inner buffering effect whenmeeting strong thermal expansion and cold contraction; the fireproof performance reaches a non-inflammable grade A1 and the performance is stable; meanwhile, application of the brucite to the fireproof field is realized and the dry density is 240kg / m<3> to 280kg / m<3>; the brucite-based lightweight fireproof door filling material is convenient to mount and use and is easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of building fireproofing and flame retardant, and in particular relates to a preparation method of a brucite-based lightweight fireproof door filler. Background technique [0002] Many methods and techniques have been developed over time for the manufacture of fire rated doors and fire rated door cores, but most of these prior art designs are not well suited for fully automated manufacturing processes, fire rated doors currently on the market, including fire rated The core board and the fireproof finish layer covering the fireproof core board, the fireproof core board is made of aluminum silicate wool or expanded perlite wool as the main material, however, the fireproof core board of the fire door is made of aluminum silicate wool as the main material, and its The smoke produced is toxic; the fireproof core board of the fireproof door is mainly made of expanded perlite wool, which has poor strength and firep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/34C03C13/06
CPCC03C13/06C04B28/346C04B2111/28C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B22/066C04B14/40C04B14/024C04B24/42C04B18/248C04B2103/302C04B38/10C04B38/0067
Inventor 陈彬焦兰荣刘雪飞
Owner 阜南县民安人防工程设备有限公司