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Preparation method of flame retardant paper

A flame-retardant paper and pulp technology, applied in chemical instruments and methods, paper, papermaking, etc., can solve the problems of poor flame-retardant performance of flame-retardant paper, achieve high flame-retardant efficiency, improve water resistance and thermal stability, and improve The effect of paper whiteness

Inactive Publication Date: 2019-08-16
陈莉玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Technical problem to be solved by the present invention: Aiming at the problem of poor flame-retardant performance of existing flame-retardant paper, a preparation method of flame-retardant paper is provided

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0042]Take ammonium polyphosphate, ethanol solution with a mass fraction of 50%, and methyltriethoxysilane, mix ammonium polyphosphate with an ethanol solution with a mass fraction of 50%, and disperse ultrasonically for 5 minutes to obtain a dispersion. The pH value is to obtain the mixed solution A, add methyltriethoxysilane to the mixed solution A, and stir to obtain the mixed solution B, filter to obtain the filter residue, wash and dry the filter residue, cool to room temperature, Get modified ammonium polyphosphate; take modified ammonium polyphosphate, diatomaceous earth, aluminum hydroxide, and antimony pentoxide, mix the modified ammonium polyphosphate and diatomite evenly, and perform heat preservation treatment to obtain the mixture. Add aluminum hydroxide and antimony pentoxide to the mixture, and keep warm for 30 minutes to obtain a semi-finished product. Put the semi-finished product in an oven for solidification treatment, cool to room temperature, and grind to o...

example 2

[0044] Take ammonium polyphosphate, ethanol solution with a mass fraction of 50%, and methyltriethoxysilane, mix ammonium polyphosphate with an ethanol solution with a mass fraction of 50%, and disperse ultrasonically for 6 minutes to obtain a dispersion. The pH value is to obtain the mixed solution A, add methyltriethoxysilane to the mixed solution A, and stir to obtain the mixed solution B, filter to obtain the filter residue, wash and dry the filter residue, cool to room temperature, Get modified ammonium polyphosphate; take modified ammonium polyphosphate, diatomaceous earth, aluminum hydroxide, and antimony pentoxide, mix the modified ammonium polyphosphate and diatomite evenly, and perform heat preservation treatment to obtain the mixture. Add aluminum hydroxide and antimony pentoxide to the mixture, keep warm for 33 minutes to obtain a semi-finished product, put the semi-finished product in an oven for curing, cool to room temperature, and grind to obtain a composite fla...

example 3

[0046] Take ammonium polyphosphate, ethanol solution with a mass fraction of 50%, and methyltriethoxysilane, mix ammonium polyphosphate with an ethanol solution with a mass fraction of 50%, and disperse ultrasonically for 7 minutes to obtain a dispersion. The pH value is to obtain the mixed solution A, add methyltriethoxysilane to the mixed solution A, and stir to obtain the mixed solution B, filter to obtain the filter residue, wash and dry the filter residue, cool to room temperature, Get modified ammonium polyphosphate; take modified ammonium polyphosphate, diatomaceous earth, aluminum hydroxide, and antimony pentoxide, mix the modified ammonium polyphosphate and diatomite evenly, and perform heat preservation treatment to obtain the mixture. Add aluminum hydroxide and antimony pentoxide to the mixture, and keep warm for 36 minutes to obtain a semi-finished product. Put the semi-finished product in an oven for solidification treatment, cool to room temperature, and grind to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a preparation method of flame retardant paper, and belongs to the technical field of paper flame retardant materials. Through a sol-gel method, the surface of ammonium polyphosphate is modified by methyl triethoxysilane to prepare microcapsule wrapped ammonium polyphosphate; the waterproof performance and heat stability of ammonium polyphosphate are improved; the heat stability and char forming amount of flame retardant paper in a high temperature zone are enhanced; the heat release during the combustion process is effectively reduced, the flame retardant performance of flame retardant paper is obviously strengthened; the porosity and strong adsorbing performance of diatomite are utilized, diatomite, modified ammonium polyphosphate, antimony pentoxide, and aluminumhydroxide carry out in-situ polymerization to prepare a composite flame retardant having a good smog absorbing performance; diatomite is taken as the carrier, due to the porosity and strong absorbingperformance of diatomite, in-situ polymerization happens on the surface of diatomite and in the pores of diatomite; the prepared composite flame retardant has a strong flame retardant performance; due to the added composite flame retardant, paper has a good flame retardant effect, at the same time, the physical properties of paper are barely influenced, the paper quality is improved, and the application range is enlarged.

Description

technical field [0001] The invention relates to a method for preparing flame-retardant paper, which belongs to the technical field of paper-based flame-retardant materials. Background technique [0002] Most of paper and paper products are made of plant fibers, and the structure is composed of interwoven fibers. However, due to the flammability of plant fibers, this determines the special significance of the fire and flame retardancy of paper and paper products. Therefore, various paper-based materials, including cardboard, paper packaging, and indoor paper decorations, have always been the focus of fire protection work. At the same time, many special occasions require paper-based materials to have high flame retardancy, such as electrical insulation materials, smoke filter bags, aerospace paper, heatable paper lunch boxes, etc., which also put forward higher requirements for paper-based products. , and its flame retardancy has attracted more and more attention. [0003] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D21H21/34D21H17/66D21H17/68D21H17/67C01B25/40
CPCC01B25/405D21H17/66D21H17/675D21H17/68D21H17/74D21H21/34
Inventor 陈莉玲
Owner 陈莉玲
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