A flame retardant for paper with good film-forming performance and preparation method thereof

A technology of film-forming properties and flame retardants, which is applied in the field of flame retardants, can solve the problems of uneven distribution of flame retardants, poor film-forming properties, and easy aging, so as to achieve enhanced mechanical properties, enhanced coating effects, The effect of not easy to break

Active Publication Date: 2020-12-01
NEIJIANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide a flame retardant for paper with good film-forming performance, which solves the problems of uneven distribution of flame retardants, poor film-forming performance, and easy aging and fracture in the prior art

Method used

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  • A flame retardant for paper with good film-forming performance and preparation method thereof
  • A flame retardant for paper with good film-forming performance and preparation method thereof
  • A flame retardant for paper with good film-forming performance and preparation method thereof

Examples

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Embodiment 1

[0037] The present embodiment provides the preparation of the modified vinyl acetate copolymer emulsion of the present invention, specifically:

[0038] Step A. Prepare the components by weight: 200 parts of vinyl acetate, 60 parts of butyl acrylate, 2 parts of polyvinyl alcohol, 3 parts of nano silicon dioxide, 0.5 part of hydroxypropyl methylcellulose, 400 parts of water , OP-10 and sodium lauryl sulfate (mass ratio 1:2) 2 parts, potassium persulfate 2 parts.

[0039] Step B. adding water to potassium persulfate to make a concentration of 5wt% initiator solution;

[0040] Step C. Add 10 times the amount of water to hydroxypropyl methylcellulose and ultrasonically disperse evenly, then add nano-silica to continue ultrasonically dispersing to obtain liquid A;

[0041] Step D. Take polyvinyl alcohol, add the remaining water, raise the temperature, after the polyvinyl alcohol is completely dissolved, cool down to 50-60°C, add emulsifier, vinyl acetate and butyl acrylate, emulsi...

Embodiment 2

[0043] This example provides the preparation of the modified vinyl acetate copolymer emulsion of the present invention. Compared with Example 1, only the raw material composition is different, and the rest of the conditions are the same.

[0044] The raw material composition of this embodiment is: 300 parts of vinyl acetate, 50 parts of butyl acrylate, 3 parts of polyvinyl alcohol, 1 part of nano silicon dioxide, 1 part of hydroxypropyl methylcellulose, 400 parts of water, dodecane 3 parts of sodium base sulfate, 1 part of potassium persulfate.

Embodiment 3

[0046] This example provides the preparation of the modified vinyl acetate copolymer emulsion of the present invention. Compared with Example 1, only the raw material composition is different, and the rest of the conditions are the same.

[0047] The raw material composition of this embodiment is: 100 parts of vinyl acetate, 80 parts of butyl acrylate, 1 part of polyvinyl alcohol, 5 parts of nano silicon dioxide, 0.1 part of hydroxypropyl methylcellulose, 1000 parts of water, OP-10 1 part, potassium persulfate 3 parts.

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Abstract

The invention discloses a paper flame retardant with high film-forming property and a preparation method thereof, and aims to solve the problems of non-uniform distribution, poor film-forming propertyand susceptibility to aging and fracturing of a flame retardant in the prior art. The paper flame retardant with high film-forming property is prepared from the following raw materials in parts by weight: 10 to 30 parts of ammonium polyphosphate, 40 to 100 parts of decabromodiphenyl ethane and 200 to 500 parts of modified vinyl acetate copolymer emulsion. The preparation method comprises the following steps: adding other raw materials into the modified vinyl acetate copolymer emulsion served as a dispersion liquid; mixing uniformly; discharging. The paper flame retardant has the advantages ofhigh film-forming property, uniform distribution of the flame retardant is realized, high mechanical performance is achieved, and the aging and fracturing are not easy to occur.

Description

technical field [0001] The invention belongs to the technical field of flame retardants, and in particular relates to a flame retardant for paper with good film-forming performance and a preparation method thereof. Background technique [0002] Paper is made of interwoven fibers, which makes it flammable and burns fast, creating a fast-growing fire. In some special industries, the flame retardancy of paper is required. To prepare paper with flame-retardant effect, the following aspects are generally considered: first, if the raw material is made of flame-retardant fiber, the burning of paper can be stopped from the source, but the cost of the paper prepared by this method is very high; secondly, to isolate the paper from the flame, Or reduce the oxygen content and combustion temperature, this method generally uses the addition of flame retardants. [0003] There are three methods of using flame retardants to prepare flame retardant paper plates: one is the coating method, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/34D21H19/14D21H19/20D21H19/34C08F218/08C08F220/18C08F2/26C08F2/30
CPCC08F2/26C08F2/30C08F218/08D21H19/14D21H19/20D21H19/34D21H21/34C08F220/1804
Inventor 孙绪兵古秋月王鹏程由耀辉
Owner NEIJIANG NORMAL UNIV
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