Environment-friendly flame-retardant fiber board and method for preparing same
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A flame retardant fiber and environmental protection technology, applied in the field of environmentally friendly flame retardant fiberboard and its preparation, can solve the problems of heavy board weight, poor environmental protection, short life and the like, and achieve the effects of simple preparation method, low cost and long service life
Active Publication Date: 2016-08-24
江西中竹生物质科技有限公司
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[0013] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide an environmentally friendly flame-retardant fiberboard and its preparation method, which can effectively solve the problems of heavy weight, high cost, poor quality, short life and poor environmental protection of existing boards. question
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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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Embodiment 1
[0038] In the specific implementation of the present invention, the environmentally friendly flame retardant fiberboard is made of waste fibers and flame retardants, the mass ratio of waste fibers to flame retardants is 100:27, and the flame retardants are measured by mass percentage: Made by mixing 28% aluminum hydroxide, 36% ammonium polyphosphate, 20% melamine and 16% zinc borate;
[0039] The waste fibers are one or a mixture of waste newspapers, waste paper boxes, corn stalks, wheat straws, cotton stalks, rice straw, bagasse and waste textiles.
[0040] Its preparation method is:
[0041] (1) Treatment of waste fibers
[0042] Wash the waste fiber, dry it, crush it, put it into a 2% NaOH solution with a mass concentration for 24 hours, wash it with water, dissociate it with a fiber dissociation device at 5000r / min, and then wash it with water to make NaOH After being completely washed off, the treated wet fiber is obtained, and the content of waste fiber in the wet fibe...
Embodiment 2
[0052] In the specific implementation of the present invention, the environmentally friendly flame retardant fiberboard is made of waste fiber and flame retardant, and the mass ratio of waste fiber to flame retardant is 100:24.
[0053] Production process of environmentally friendly flame retardant fiberboard:
[0054] (1) Treatment of waste fibers
[0055] Crush the collected waste fibers, add 2% NaOH for alkali impregnation, wash with water after 24 hours, then use a fiber dissociation device (5000r) to further dissociate, and wash with water again to completely remove the alkali, and then remove water deal with. Take some to dry and calculate the moisture content.
[0056] (2) Addition amount and preparation of flame retardant
[0057] The amount of flame retardant added accounts for 20%-30% of the total fiber, aluminum hydroxide accounts for 20%-40% of the total flame retardant, ammonium polyphosphate accounts for 30%-50%, and melamine accounts for 10%-25% 1. Zinc bora...
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 an environment-friendly flame-retardant fiber board and a method for preparing the same. By the aid of the environment-friendly flame-retardant fiber board and the method, problems of heavy weight, high cost, poor quality and environmental friendliness and short service life of existing boards can be solved effectively. The method includes cleaning, drying and smashing waste fibers; soaking the waste fibers in NaOH solution with the mass concentration of 2% for 24 h; washing the waste fibers by the aid of clear water; dissociating the waste fibers by the aid of a fiber dissociation device at the speed of 5000 r/min; washing the waste fibers by the aid of clear water until NaOH is thoroughly washed out to obtain treated wet fibers; evenly mixing aluminum hydroxide, ammonium polyphosphate, melamine and zinc borate with one another to obtain flame retardants; mixing the treated wet fibers with the flame retardants under stirring conditions to obtain uniform board slurry; molding the board slurry in a mold and carrying out cold pressing and hot pressing to obtain the environment-friendly flame-retardant fiber board. The environment-friendly flame-retardant fiber board and the method have the advantages that raw materials for the environment-friendly flame-retardant fiber board are abundant, waste can be utilized, accordingly, resources can be saved, environmental pollution is reduced, the method is simple and is low in cost and high in efficiency, the environment-friendly flame-retardant fiber board which is a product is high in quality and long in service life, and the environment-friendly flame-retardant fiber board and the method have huge economic and social benefits.
Description
technical field [0001] The invention relates to board materials, in particular to an environment-friendly flame-retardant fiber board and a preparation method thereof. Background technique [0002] With the improvement of safety awareness, people have higher and higher requirements for flame retardant boards. In the preparation of flame retardant fiberboards, not only the type of boards, but also the method of applying pressure and the type of flame retardants must be considered. Among them, the types of plates currently used: [0003] There are mainly cement boards, fiber cement boards, gypsum boards, etc. They mainly have the following deficiencies: [0004] (1) The board is heavy. [0005] (2) Poor flexural, impact and toughness. [0006] (3) The cost is relatively high. [0007] Method of Application and Type of Flame Retardant: [0008] The most common and extensive application of flame retardant panels in the prior art is the additive method. The types of flame r...
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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