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Flame retardant environmentally friendly adhesive and producing method of plant fiberboard

A manufacturing method and adhesive technology, applied in the direction of adhesives, adhesive additives, flat products, etc., can solve the problems of high energy consumption, flammability, and high price in the forming stage, and achieve water-resistant adhesive strength, highly stable structure, and production low cost effect

Active Publication Date: 2016-02-17
河南国信联投环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, some of the crop straw resources have been used to produce plant fiber boards. Because the existing plant fiber boards use isocyanate as an adhesive, the price is expensive, resulting in high bonding costs for the boards, and such boards are flammable. , moisture absorption, high energy consumption in the forming stage and other technical problems, which further restrict the development of the plant fiberboard industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The present invention also provides a method for preparing a plant fiber board using the above-mentioned flame-retardant and environmentally friendly adhesive, comprising the following steps:

[0029] (1) Prepare the basic solution by uniformly mixing magnesium sulfate, magnesium chloride and water, and then uniformly mixing the basic solution with magnesium oxide, sodium dihydrogen phosphate, boric acid and methylcellulose to prepare the flame-retardant and environmentally friendly adhesive agent;

[0030] (2) within a period of no more than 2 hours, mix the plant straw particles and the flame-retardant environmental protection adhesive according to the mass ratio of (5-8):(2-4) to form a mixture;

[0031] (3) Pre-pressing and molding the mixture to obtain a plant fiber prefabricated slab; performing cold pressing and shaping treatment on the plant fiber prefabricated slab to obtain a plant fiber prefabricated slab;

[0032] (4) drying the plant fiber shaped slab to f...

Embodiment 1

[0036] Embodiment 1 of the present invention provides a flame-retardant and environmentally friendly adhesive, which is prepared from 50 kg of base solution, 45 kg of magnesium oxide, 15 g of sodium dihydrogen phosphate, 23 g of boric acid and 22 g of methyl cellulose, wherein the base solution is made of sulfuric acid Magnesium 12.5kg; Magnesium chloride 15kg; Water 22.5kg.

[0037] The embodiment of the present invention also provides a method for preparing a straw plant fiberboard using the flame-retardant and environmentally friendly adhesive provided in Embodiment 1, including the following steps:

[0038] Unbundling: dismantle the purchased straw and sort out iron wires, stones, glass and other sundries;

[0039] Crushing: The disassembled straw is further cleaned of impurities through the belt conveyor (use a strong magnet to suck out the fine iron impurities, and let the non-metallic debris such as stones fall by themselves through the gap between the belt conveyor and...

Embodiment 2

[0059] Embodiment 2 of the present invention provides a flame-retardant and environmentally friendly adhesive, which is prepared from 56 kg of base solution, 39 kg of magnesium oxide, 10 g of sodium dihydrogen phosphate, 30 g of boric acid and 30 g of methyl cellulose, wherein the base solution is made of sulfuric acid Magnesium 11.76kg; Magnesium chloride 19.6kg; Water 24.64kg.

[0060] The preparation method of the flame-retardant and environmentally-friendly adhesive provided in this example is basically the same as the preparation method of the flame-retardant and environmentally-friendly adhesive provided in the first example, except that the amount of each raw material used is different.

[0061] The manufacturing method of the wheat straw plant fiberboard using the above-mentioned flame-retardant and environmentally friendly adhesive provided in this example is basically the same as the manufacturing method of the straw plant fiberboard provided in the first example, exc...

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Abstract

The present invention provides a flame retardant environmentally friendly adhesive, and the raw materials comprise magnesium sulfate, magnesium chloride, water, magnesium oxide, sodium dihydrogen phosphate, boric acid, and methyl cellulose. The flame retardant environmentally friendly adhesive is a formaldehyde-free environmentally friendly inorganic adhesive, not only has flame-retardant effect, but also can make a plant fiberboard highly stable in fiber structure and high in mechanical properties, and also allows the plant fiberboard to have waterproof, moistureproof, fireproof, rot-resistant, pest control and other functions; in addition, the flame retardant environmentally friendly adhesive has readily available raw materials, and cheap in price, so that the production cost of the flame retardant environmentally friendly adhesive is relatively low. The present invention also provides a producing method of the plant fiberboard by use of the flame retardant environmentally friendly adhesive.

Description

technical field [0001] The invention relates to an environmentally friendly adhesive and a manufacturing method of an artificial board, in particular to a flame-retardant and environmentally-friendly adhesive and a method for manufacturing a plant fiber board using the flame-retardant and environmentally-friendly adhesive. Background technique [0002] my country's forest coverage rate only accounts for 61.3% of the world's forest coverage rate, ranking 139th in the world. The per capita forest area in China is equivalent to 21.3% of the world's per capita forest area, and the per capita forest stock volume is only 1 / 8 of the world's per capita forest stock volume. The national forest coverage rate is only 16.5%. Obviously, my country is a country with very scarce forest resources. Therefore, it is imminent to comprehensively develop and utilize other biomass resources to replace forest resources. [0003] The annual output of crop straw is about 700 million tons, and onl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J1/00C09J11/04C09J11/08B27N3/10B27N3/12B27N3/18
CPCB27N3/10B27N3/12B27N3/18C09J1/00C09J11/04C09J11/08
Inventor 马国伟徐正明王志强贾志伟张海洋
Owner 河南国信联投环保科技有限公司
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