Environment-friendly flame-retardant silicate adhesive for bamboo woods and preparation method thereof

A silicate and adhesive technology, applied in the direction of adhesives, adhesive additives, inorganic adhesives, etc., can solve the problems of glued state damage, single plate rupture, increased loss rate, etc., to ensure environmental protection and water resistance. Excellent, dimensionally stable results

Active Publication Date: 2015-04-22
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this treatment technology often leads to important problems such as cracking, warping and deformation of the veneer, increased loss rate, and influence on gluing, and it is easy to cause serious moisture absorption and frost return to the finished material, and even the gluing state is destroyed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of an environmentally friendly flame-retardant silicate adhesive for bamboo and wood, comprising the following steps:

[0035] 1) Add 60 parts by weight of water glass into a 200ml beaker, stir it with an electric stirring device for about 5 minutes at room temperature, then add 5 parts by weight of HPP-101 hyperbranched polyphosphate resin into the water glass, at a speed higher than 20 rpm The rotating speed of / second stirs 20-25min, makes resin and water glass mix rapidly, obtains pale yellow hyperbranched polyphosphate-water glass mixture;

[0036] 2) Add 6 parts by weight of cooked glutinous rice flour to the mixture obtained in step 1), stir at a speed lower than 8 rpm for 10 minutes, and then stir at a speed higher than 20 rpm for 15 minutes to obtain glutinous rice flour thickened Hyperbranched polyphosphate-water glass mixture;

[0037] 3) Add 5 parts by weight of nano-attapulgite to 10 parts by weight of nano-SiO with a mass fraction of...

Embodiment 2

[0040] A preparation method of an environmentally friendly flame-retardant silicate adhesive for bamboo and wood, comprising the following steps:

[0041] 1) Add 65 parts by weight of water glass into a 200ml beaker, stir with an electric stirring device for about 5 minutes at room temperature, and then add 6.5 parts by weight of HPP-102 hyperbranched polyphosphate resin into the water glass, at a speed higher than 20 rpm The rotating speed of / second stirs 20-25min, makes resin and water glass mix rapidly, obtains pale yellow hyperbranched polyphosphate-water glass mixture;

[0042] 2) Add 4.5 parts by weight of cooked glutinous rice flour to the mixture obtained in step 1), stir at a speed lower than 8 rpm for 10 minutes, and then stir at a speed higher than 20 rpm for 15 minutes to obtain glutinous rice flour thickened Hyperbranched polyphosphate-water glass mixture;

[0043] 3) Add 7.5 parts by weight of nano-attapulgite to 15 parts by weight of nano-SiO with a mass frac...

Embodiment 3

[0046] A preparation method of an environmentally friendly flame-retardant silicate adhesive for bamboo and wood, comprising the following steps:

[0047]1) Add 70 parts by weight of water glass into a 200ml beaker, stir with an electric stirring device for about 5 minutes at room temperature, and then add 8 parts by weight of HPP-103 hyperbranched polyphosphate resin into the water glass, at a speed higher than 20 rpm The rotating speed of / second stirs 20-25min, makes resin and water glass mix rapidly, obtains pale yellow hyperbranched polyphosphate-water glass mixture;

[0048] 2) Add 3 parts by weight of cooked glutinous rice flour to the mixture obtained in step 1), stir at a speed lower than 8 rpm for 10 minutes, and then stir at a speed higher than 20 rpm for 15 minutes to obtain glutinous rice flour thickened Hyperbranched polyphosphate-water glass mixture;

[0049] 3) Add 10 parts by weight of nano-attapulgite to 20 parts by weight of nano-SiO with a mass fraction o...

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Abstract

The invention discloses an environment-friendly flame-retardant silicate adhesive for bamboo woods and a preparation method thereof. The adhesive comprises the following components in parts by weight: 60-70 parts of water glass, 5-8 parts of hyperbranched polyphosphoester resin, 3-6 parts of cooked glutinous rice flour, 10-20 parts of nano SiO2 dispersion liquid and 5-10 parts of nano attapulgite. The nano attapulgite is mixed into the nano SiO2 dispersion liquid, the nano mixed dispersion liquid with high stability is obtained and can be fully dispersed in an adhesive system without directly adding and stirring, and the adhesive containing nano curing components is easily obtained. The adhesive has the advantages of environment friendliness, flame retardant property and high adhesive performance and can be used for adhering various bamboo and wood materials. The preparation method is simple and convenient in operation, stable in process and easy to control.

Description

technical field [0001] The invention relates to the field of wood adhesives, in particular to an environmentally friendly flame-retardant silicate adhesive for bamboo wood and a preparation method thereof. Background technique [0002] Wooden materials and bamboo and wood products are widely used in household and public places. In recent years, as people pay more and more attention to fire safety and product flame retardancy in household and public places, the development of bamboo and wood products with flame retardant and fireproof functions has become a popular trend. the goal that is pursued. [0003] At present, in the prior art at home and abroad, the method of impregnating veneers or finished materials with flame retardants is mainly used to realize the flame retardancy of bamboo and wood materials. However, this treatment technology often leads to important problems such as cracking, warping and deformation of the veneer, increased loss rate, and impact on gluing, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J1/02C09J11/04C09J11/08
Inventor 张新荔吴义强胡云楚夏燎原卿彦刘壮青杨光伟钟文泉
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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