Flame-retardant plant fiber and flame-retardant paper

A technology of plant fiber and flame retardant paper, applied in the field of flame retardant materials, can solve problems such as poor flame retardant effect and loss of flame retardants

Inactive Publication Date: 2016-06-15
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardants of these flame retardant methods all remain on the surface of the fiber or in the gaps between fibers, or the loss of the flame retardant is serious during the production process, or the flame retardant effect is mainly on the surface of the paper, and the internal flame retardant effect Poor etc.

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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  • Flame-retardant plant fiber and flame-retardant paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: A kind of flame-retardant plant fiber, is prepared by the following method:

[0021] ①Add 100mL of magnesium chloride solution with a concentration of 0.8mol / L to a three-necked flask, heat and stir, control the temperature at 50°C, add 3g of hardwood fiber and 0.04g of ultrafine silica, and stir rapidly for 20min;

[0022] ② Add 200mL of ammonia water with a concentration of 2%, and continue to stir rapidly for 10min;

[0023] ③ After filtering the broad-leaved wood fibers, wash them with clean water to obtain flame-retardant plant fibers;

[0024] ④Copy the flame-retardant plant fiber with a copying machine and make it quantitatively 45g. m -2 flame retardant paper.

Embodiment 2

[0025] Embodiment 2: A kind of flame-retardant plant fiber, is prepared by the following method:

[0026] ①Add 100mL of magnesium chloride solution with a concentration of 1.0mol / L into a three-neck flask, heat and stir, control the temperature at 60°C, add 3g of hardwood fiber and 0.06g of ultrafine silica, and stir rapidly for 30min;

[0027] ② Add 200mL of ammonia water with a concentration of 2%, and continue to stir rapidly for 15min;

[0028] ③ After filtering the broad-leaved wood fibers, wash them with clean water to obtain flame-retardant plant fibers;

[0029] ④Copy the flame-retardant plant fiber with a copying machine and make it quantitatively 50g. m -2 flame retardant paper.

Embodiment 3

[0030] Embodiment 3: A kind of flame-retardant plant fiber, is prepared by the following method:

[0031] ①Add 100mL of magnesium chloride solution with a concentration of 1.2mol / L to a three-neck flask, heat and stir, control the temperature at 70°C, add 3g of hardwood fiber and 0.04g of ultrafine silica, and stir rapidly for 30min;

[0032] ② Add 200mL of ammonia water with a concentration of 2.5%, and continue to stir rapidly for 20min;

[0033] ③ After filtering the broad-leaved wood fibers, wash them with clean water to obtain flame-retardant plant fibers;

[0034] ④Copy the flame-retardant plant fiber with a sheeter to make a quantitative 60g. m -2 flame retardant paper.

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 the field of a flame-retardant material, and especially relates to flame-retardant plant fiber and a piece of flame-retardant paper. The flame-retardant plant fiber comprises plant fiber slurry and a fire retardant; a preparation method of the flame-retardant plant fiber comprises the following steps: a magnesium chloride solution whose concentration is 0.8-1.4mol/L is added into a reactor with heating and stirring, the temperature is controlled at 50-70 DEG C, the plant fiber pulp and an ultrafine filling material are added, stirring is carried out for 20-40 minutes, ammoniacal liquor whose mass fraction is 2.0-2.5% is added, stirring is carried out for 10-30 minutes, the plant fiber pulp is filtered and washed with clear water, and the flame-retardant plant fiber is obtained. The flame-retardant paper which is made from the flame-retardant plant fiber has the advantages of good flame retardation effects, low influence on physical strength of paper, low production cost, and environment protection.

Description

technical field [0001] The invention relates to the field of flame retardant materials, in particular to a flame retardant plant fiber and a flame retardant paper. Background technique [0002] Plant fiber is a flammable substance. With the development of society, flame-retardant paper with plant fiber as the main raw material is used in more and more fields, such as flame-retardant packaging paper and cardboard, flame-retardant decorative paper, flame-retardant Therefore, the flame retardant research on plant fiber paper has become a research hotspot in the field of special paper. Existing flame retardant methods for plant fiber paper are often prepared by adding flame retardants, such as adding water-insoluble flame retardants to pulp to make flame retardant paper, or using surface sizing, coating or impregnation methods. And other methods, let the paper absorb the water-soluble flame retardant, so that it has flame retardancy. However, the flame retardants of these flam...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/68D21H21/34D21H21/18
CPCD21H17/68D21H11/02D21H17/64D21H17/66D21H21/18D21H21/34
Inventor 赵会芳沙力争
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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