Preparation method of sound-absorbing flame-retardant fiber composite material

A fiber composite material, flame retardant technology, applied in fiber raw material processing, synthetic cellulose/non-cellulose material pulp/paper, non-fiber pulp addition, etc. Large, low bulk, etc., to ensure the appearance and performance, improve the bulk and porosity, and increase the effect of absorbency

Pending Publication Date: 2019-10-11
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the late start of domestic research on fiber-type sound-absorbing and flame-retardant materials, although some basic research has been carried out and some progress has been made, there are still many problems in the production practice process, especially compared with foreign products, domestic The sound-absorbing and flame-retardant products have the disadvantages of high t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] 1) Refining: Take the softwood pulp board soaked in water for more than 4h, then use a PFI refiner to refine the beating degree to 18°SR, wring out the slurry, and balance the moisture to obtain softwood pulp for at least 24h;

[0027] 2) Put 60% softwood pulp, 30% glass fiber and 10% hardwood APMP pulp in a decomposer according to the mass percentage, and add water after decomposing for 1w revolutions to obtain glass fiber and plant fiber with a beating degree of 15°SR The fiber length of softwood pulp is 5-6mm, the length of glass fiber is 6-8mm, the width is 9-15μm, and the fiber length of hardwood APMP pulp is 2~3mm;

[0028] 3) Papermaking: Add 0.5% by mass of cationic retention aid to the mixed slurry, and shape it on a paper sample copying device. The basis weight of the paper is 45-50g / m 2 ;

[0029] 4) Drying: Place the wet paper web formed into a hot air circulating drying box at 105°C to obtain a base paper with a dryness of 50%;

[0030] 5) Prepara...

Example Embodiment

[0033] Example 2

[0034] 1) Refining: Take the softwood pulp board soaked in water for more than 4h, then use a PFI refiner to refine the beating degree to 23°SR, wring out the slurry, and balance the moisture to obtain softwood pulp for at least 24h;

[0035] 2) Put 40% softwood pulp, 40% glass fiber and 20% hardwood APMP pulp in a decomposer according to the mass percentage, and add water after decomposing for 1w revolutions to obtain glass fiber and plant fiber with a beating degree of 15°SR The fiber length of softwood pulp is 5-6mm, the length of glass fiber is 6-8mm, the width is 9-15μm, and the fiber length of hardwood APMP pulp is 2~3mm;

[0036] 3) Papermaking: Add 0.5% by mass of cationic retention aid to the mixed slurry, and shape it on a paper sample copying device. The basis weight of the paper is 45-50g / m 2 ;

[0037] 4) Drying: Place the wet paper web formed into a hot air circulating drying box at 105°C to obtain a base paper with a dryness of 50%;

[0038] 5) Prepara...

Example Embodiment

[0041] Example 3

[0042] 1) Refining: Take the softwood pulp board soaked in water for more than 4h, then use a PFI refiner to refine the beating degree to 25°SR, wring out the slurry, and balance the moisture for at least 24h to obtain softwood pulp;

[0043] 2) Put 60% softwood pulp, 20% glass fiber and 20% hardwood APMP pulp in a decomposer according to the mass percentage, and add water after decomposing for 1w revolutions to obtain glass fiber and plant fiber with a beating degree of 28°SR The fiber length of softwood pulp is 5-6mm, the length of glass fiber is 6-8mm, the width is 9-15μm, and the fiber length of hardwood APMP pulp is 2~3mm;

[0044] 3) Papermaking: Add 0.8% of the mass of cationic retention aid to the mixed slurry, and shape it on the paper sample copying device. The basis weight of the paper is 45-50g / m 2 ;

[0045] 4) Drying: Place the wet paper web formed into a hot air circulation drying box at 105°C to obtain a base paper with a dryness of 60%;

[0046] 5) P...

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Abstract

The invention relates to a preparation method of a sound-absorbing flame-retardant fiber composite material. The method comprises the following steps of pulp selection, pulping, pulp preparation, papermaking, drying and impregnation. Pulp of the sound-absorbing flame-retardant fiber composite material comprises 30-70% of bleached softwood pulp, 20-40% of glass fibers and 10-30% of hardwood pulp, wherein the beating degree of the softwood is 18-30 degrees SR, and the beating degree of the hardwood pulp is 13-25 degrees SR. Then, 0.5-2% of a plasticizer, 1-3% of an adhesive and 3-5% of a flame retardant are adopted for impregnation. According to the method, various measures are combined to prepare the fiber composite material which is light in texture, good in air permeability and excellentin sound absorption performance and flame retardance performance, the application field of the glass fibers is widened, and the method has important significance in the development and cost reductionof novel building decoration materials.

Description

technical field [0001] The invention relates to the field of special paper-based functional materials, in particular to a preparation method of a sound-absorbing and flame-retardant fiber composite material that can be used as a building decoration material. Background technique [0002] The mixture of glass fiber and plant fiber can effectively play the respective advantages of glass fiber and plant fiber. Glass fiber is a widely used composite material with excellent characteristics such as light weight, high strength, corrosion resistance, electrical insulation, heat insulation and sound absorption, and high cost performance. . Natural fiber (such as plant fiber) has a wide frequency band of sound absorption and can effectively absorb noise, but its fire resistance and heat insulation performance is poor, it is easy to cause fire, and its application range is limited. Therefore, it is necessary to study composite materials with both sound-absorbing and flame-retardant pr...

Claims

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Application Information

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IPC IPC(8): D21H11/02D21H13/40D21H21/10D21H21/14D21H21/34D21H19/12D21H25/06D21D1/20D21F13/00
CPCD21D1/20D21F13/00D21H11/02D21H13/40D21H17/71D21H19/12D21H21/10D21H21/14D21H21/34D21H25/06
Inventor 徐永建李伟王敏刘燕段叶荣
Owner SHAANXI UNIV OF SCI & TECH
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