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Simple, convenient, efficient and environment-friendly preparation method of flame-retardant office paper

An efficient and environmentally friendly technology, applied in special paper, papermaking, paper and other directions, can solve the problems of non-toxicity, environmental and human health harmless

Pending Publication Date: 2021-08-06
ANHUI POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although halogen-based flame retardants have good flame retardant effects and are used in small amounts, a large amount of hydrogen halide gas will be produced during the combustion process, which is highly toxic and corrosive, and cannot meet the requirements of non-toxicity, harmlessness to the environment and human health. asked questions

Method used

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  • Simple, convenient, efficient and environment-friendly preparation method of flame-retardant office paper
  • Simple, convenient, efficient and environment-friendly preparation method of flame-retardant office paper
  • Simple, convenient, efficient and environment-friendly preparation method of flame-retardant office paper

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Embodiment

[0038] see Figure 1-12 , the present invention provides a technical solution: a method for preparing a simple, efficient and environmentally friendly flame-retardant office paper. The specific steps of the preparation method for the simple, efficient and environmentally friendly flame-retardant office paper are as follows:

[0039] S1: synthetic flame retardant: add 0.05mol phytic acid and 0.05mol citric acid into the reflux flask for condensation;

[0040] Keep stirring the mixture of phytic acid and citric acid at a temperature of 130°C for 2 hours under the magnetic stirring of a constant temperature heating magnetic stirrer;

[0041] After the mixture of phytic acid and citric acid was stirred and mixed, 0.7 mol of dicyandiamide was added, and the temperature was kept at 130° C. for 2 hours to obtain a crude product;

[0042] Afterwards, the crude product was precipitated with absolute ethanol and acetone, and washed 3-5 times to remove unreacted reactants to obtain a pu...

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Abstract

The invention belongs to the technical field of flame-retardant paper preparation, and particularly relates to a simple, convenient, efficient and environment-friendly preparation method of flame-retardant office paper. The preparation method comprises the following specific steps: S1, synthesizing a flame retardant; and S2, carrying out flame retardant treatment on the paper, namely adding the flame retardant powder obtained in the step S1 into deionized water by adopting a dipping container and drying equipment to prepare finishing liquid, putting the finishing liquid into a dipping container, then, guiding raw paper into the dipping container at the room temperature, smoothly impregnating the raw paper with the finishing liquid for 15 seconds, and then, drying the impregnated raw paper in drying equipment to obtain the flame-retardant office paper. The efficient and environment-friendly office paper flame retardant is successfully synthesized by taking phytic acid and citric acid as main raw materials. The flame retardant property of the A4 office paper is improved through dipping and drying processes. The problem of flammability of the paper is effectively inhibited, and the printing effect and the physical properties of the paper are hardly influenced.

Description

technical field [0001] The invention relates to the technical field of flame retardant paper preparation, in particular to a simple, efficient and environmentally friendly preparation method of flame retardant office paper. Background technique [0002] Paper is a multifunctional material with a wide range of applications in everyday life, such as wallpaper, wrapping paper, decorative paper, office paper, etc. According to a report by the Worldwatch Institute, global paper consumption increased more than six-fold in the second half of the 20th century, with one-fifth of the world's wood ultimately being used to make paper products. A4 paper is an international office paper composed of cellulose, hemicellulose and lignin, and its size is regulated by the International Organization for Standardization. For traditional paper made of natural plant fibers, flammability may be its most fatal weakness, which not only increases the difficulty of preserving important and precious do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H21/34D21H23/22D21H25/06
CPCD21H27/00D21H21/34D21H23/22D21H25/06
Inventor 张广知方进张骏霆
Owner ANHUI POLYTECHNIC UNIV
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