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Chitin-based flame retardant, flame-retardant paper and preparation method of flame-retardant paper

A technology of chitin and flame retardant, which is applied in the field of flame retardant paper, can solve the problems of cumbersome preparation method of flame retardant paper, and achieve the effects of easy popularization and application, good thermal stability and high carbon-forming property.

Active Publication Date: 2021-05-07
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the cumbersome defect of the flame retardant paper preparation method, the present invention provides the preparation of chitin-based flame retardant and its application in paper flame retardant

Method used

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  • Chitin-based flame retardant, flame-retardant paper and preparation method of flame-retardant paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054]This embodiment provides a matrix-based damping agent, the preparation method of the chin-based resistance fuel is as follows:

[0055](1) Press the chorin and N, N-dimethylformamide to be added to the ball mill in mass ratio of 1:20 to prepare a chorin fiber; the ball mill is 20 h, and the rotational speed is 540 rpm;

[0056](2) The chipper fibers are added to a three-mouth flask in a 250 ml of pentoxide, and methanesulfonic acid is added.2After 16 h at 50 ° C, after the reaction was completed, washed with water, that is, a paced chromaticizing agent;

[0057]Wherein, the weight volume ratio of the chin fiber and the methanesulfonic acid is 1: 1 (g / ml); the mass ratio of the phosphorus oxide and the chin fiber is 4: 1.

[0058]This embodiment also provides a flame-retardant paper, and the preparation method of the flame-retardant paper is as follows: The chip-based damping agent obtained by the present embodiment is mixed with pulp, and the drying paper is obtained.

Embodiment 2

[0060]In this embodiment, a chip-based damping agent is provided, and the difference from Embodiment 1 is that the mass ratio of the pentoxide and the chlorin fibers in step (2) is 1: 1, the reaction time is 12h. .

[0061]This embodiment also provides a flame-retardant paper, and the preparation method of the flame-retardant paper is as follows: The chip-based damping agent obtained by the present embodiment is mixed with pulp, and the drying paper is obtained.

Embodiment 3

[0063]In this embodiment, a chrometric resistant agent is provided, and the difference from the first embodiment is that the mass ratio of the pentoxide and the chlorin fiber in step (2) is 3: 1, the reaction time is 12 h. .

[0064]This embodiment also provides a flame-retardant paper, and the preparation method of the flame-retardant paper is as follows: The chip-based damping agent obtained by the present embodiment is mixed with pulp, and the drying paper is obtained.

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Abstract

The invention relates to flame-retardant paper, in particular to a chitin-based flame retardant, flame-retardant paper and a preparation method of the flame-retardant paper. The preparation method of the chitin-based flame retardant comprises the following steps: mixing chitin and a solvent, carrying out ball milling to obtain chitin fibers, and reacting the chitin fibers with a phosphorus source. The flame-retardant paper comprises the chitin-based flame retardant; preferably, the addition amount of the chitin flame retardant in the flame-retardant paper is 1-50 wt%. According to the invention, chitin is modified with phosphorus element, existence of the phosphorus element can catalyze a material to rapidly form carbon in a combustion process, and a formed carbon layer is equivalent to a physical interlayer and isolates entry of oxygen and heat, so that the combustion degree is delayed, and the paper has flame retardant property.

Description

Technical field[0001]The present invention relates to a flame-retardant paper, and more particularly to a matrix-based damping agent and a flame-retardant paper and a preparation method thereof.Background technique[0002]In recent years, with the increasing depletion of petroleum resources, people gradually turn their attention to the development and utilization of natural polymer materials. It is well known that cellulose is the most natural polymer material existing in nature, and it has good biodegradability and biocompatibility. At present, there are mainly paper, packaging boxes, membrane materials, enhanced materials, etc. Paper is one of the most widely used methods of cellulose. Many of the current information is in the form of paper, and the paper has very easy combustion, so when the fire will cause great economic losses, personal safety, and information cannot be recovered, the preparation of flame-retarded paper is important Significance.[0003]Existing flame retardants ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/34D21H17/24D21H17/07D21H17/65D01F9/00D01F11/00
CPCD21H21/34D21H17/74D21H17/24D21H17/07D21H17/65D01F9/00D01F11/00
Inventor 吴敏黄勇张同玲
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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