Assistant for continuously reducing flame retardant property of flame-retardant paper

A technology of flame retardant performance and flame retardant paper, applied in papermaking, paper, textiles and papermaking, etc., can solve the problems of reduced combustion performance, reduced combustion performance, crystallization and other problems of flame retardant paper, and achieve enhanced flame retardant performance and flame retardant efficiency. High, improve the effect of related performance

Pending Publication Date: 2022-07-22
广信新材料科技(长沙)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The B8126 environmentally friendly flame retardant used in the prior art is a powdery white solid, which can be dissolved in water to form a colorless and transparent solution. The flame-retardant paper made at the beginning has excellent flame-retardant performance and can reach UL94 V-0 level combustion Standards, but the finished products often have problems such as crystallization, moisture absorption, and gradual decrease in combustion performance with time under normal storage conditions. The problem of prolongation and gradual reduction of the flame retardant paper is studied, and an additive for the continuous decline of the flame retardant performance of the flame retardant paper is proposed.

Method used

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  • Assistant for continuously reducing flame retardant property of flame-retardant paper

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Experimental program
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Effect test

Embodiment 1

[0034] First, the auxiliary agent for the continuous decrease of the flame retardant performance of the flame retardant paper of the present invention is prepared according to the following steps:

[0035] S1: prepare corn gelatinized starch, accurately weigh corn gelatinized starch and LS-2 type anionic starch according to the proportioning, wherein the proportioning is: corn gelatinized starch: LS-2 type anionic starch=7:1;

[0036] S2. Add the above-measured corn gelatinized starch and LS-2 type anionic starch together into a clean container, fully stir to make the corn gelatinized starch and LS-2 type anionic starch completely mixed, and the stirring speed during mixing is 2300rpm , the stirring time is 2h, and then heated to above 80 °C to make it gelatinized to obtain a gelatinized auxiliary;

[0037] S3. Take another clean container, add deionized water and the above gelatinized adjuvant into it, stir to make it fully mixed, and dilute the gelatinized adjuvant to a conc...

Embodiment 2

[0040] First, the auxiliary agent for the continuous decrease of the flame retardant performance of the flame retardant paper of the present invention is prepared according to the following steps:

[0041] S1: prepare corn gelatinized starch, accurately weigh corn gelatinized starch and LS-2 type anionic starch according to the proportioning, wherein the proportioning is: corn gelatinized starch: LS-2 type anionic starch=7:3;

[0042] S2. Add the above-measured corn gelatinized starch and LS-2 type anionic starch together into a clean container, fully stir to make the corn gelatinized starch and LS-2 type anionic starch completely mixed, and the stirring speed during mixing is 2300rpm , the stirring time is 2h, and then heated to above 80 °C to make it gelatinized to obtain a gelatinized auxiliary;

[0043] S3. Take another clean container, add deionized water and the above gelatinized adjuvant into it, stir to mix well, and dilute the gelatinized adjuvant to a concentration o...

Embodiment 3

[0046]First, the auxiliary agent for the continuous decrease of the flame retardant performance of the flame retardant paper of the present invention is prepared according to the following steps:

[0047] S1: prepare corn gelatinized starch, accurately weigh corn gelatinized starch and LS-2 type anionic starch according to the proportioning, wherein the proportioning is: corn gelatinized starch: LS-2 type anionic starch=8:1;

[0048] S2. Add the above-measured corn gelatinized starch and LS-2 type anionic starch together into a clean container, fully stir so that the corn gelatinized starch and LS-2 type anionic starch are completely mixed, and the stirring speed during mixing is 2300rpm , the stirring time is 2h, and then heated to above 80 °C to make it gelatinized to obtain a gelatinized auxiliary;

[0049] S3. Take another clean container, add deionized water and the above gelatinized adjuvant into it, stir to mix well, and dilute the gelatinized adjuvant to a concentratio...

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Abstract

The invention discloses an auxiliary agent for continuously reducing the flame retardant property of flame-retardant paper, and particularly relates to the field of auxiliary agents for preparing flame-retardant paper, and the auxiliary agent is prepared by mixing corn gelatinized starch, LS-2 type anionic starch and deionized water into a solution with the concentration of 3-6%; the mixing ratio of the corn gelatinized starch to the LS-2 type anionic starch is as follows: the corn gelatinized starch to the LS-2 type anionic starch is (7-9): (1-3). According to the auxiliary agent for continuously reducing the flame-retardant property of the flame-retardant paper, the LS-2 type anionic starch permeates into the paper and is combined with fibers in the paper, a large amount of white flame-retardant gas is released in the paper in a combustion test, the concentration of combustible gas is diluted, and a layer of film is formed under the assistance of the corn gelatinized starch, so that the flame-retardant property of the flame-retardant paper is continuously reduced. Paper surface carbonization is accelerated in the film combustion process, a combustion barrier effect is formed, the flame retardant property of the flame-retardant paper is improved to a great extent, the flame retardant is reserved in paper fibers, finally, the flame retardant property is improved, and the flame-retardant effect retention time of the flame-retardant paper is prolonged.

Description

technical field [0001] The invention relates to the field of auxiliary agents for the preparation of flame retardant paper, in particular to an auxiliary agent for the continuous reduction of flame retardant properties of flame retardant paper. Background technique [0002] Auxiliary chemicals are added to improve the production process, improve product quality and yield, or to give products certain specific application properties, and play an important modification role in industrial production. There are many kinds of additives, and the performance varies greatly. Only when they are used properly can the effect be prominent. [0003] After the flame retardant enters the paper and remains, with the change of time, relevant chemical reactions will occur, or physical transfer through the medium will occur, and after half a month, the flame retardant performance will gradually decline, and it will even be difficult to flame retardant. In order to keep the flame retardant in t...

Claims

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Application Information

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IPC IPC(8): D21H21/34D21H17/28
CPCD21H21/34D21H17/28
Inventor 曾德民魏雅琴唐昌林
Owner 广信新材料科技(长沙)有限责任公司
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