CN103773253A - Flame-retardant waterproof silicate wood adhesive and preparation method thereof - Google Patents

Flame-retardant waterproof silicate wood adhesive and preparation method thereof Download PDF

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CN103773253A
CN103773253A CN201410021560.5A CN201410021560A CN103773253A CN 103773253 A CN103773253 A CN 103773253A CN 201410021560 A CN201410021560 A CN 201410021560A CN 103773253 A CN103773253 A CN 103773253A
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silicate
parts
fire
carbon nano
resistant waterproof
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CN103773253B (en
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张新荔
吴义强
李新功
李贤军
胡云楚
钟文泉
杨光伟
刘壮青
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Central South University of Forestry and Technology
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Central South University of Forestry and Technology
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Abstract

The invention discloses flame-retardant waterproof silicate wood adhesive and a preparation method thereof. The adhesive comprises the following components in parts by weight: 60 to 70 parts of silicate solution, 10 to 15 parts of carbon nanotube dispersion liquid, 1 to 3 parts of silane coupling agent, 3 to 5 parts of organic silicon emulsion, 5 to 10 parts of vermiculite, 4 to 6 parts of white carbon black and 8 to 12 parts of silicon phosphate. The preparation method comprises the steps of modifying the silicate solution collectively through the carbon nanotube dispersion liquid and organic silicon emulsion and preparing silicate adhesive. The flame-retardant waterproof silicate wood adhesive is environmentally friendly, toxic-free, simple and convenient to prepare and excellent in the performance of the adhesive material.

Description

A kind of fire-resistant waterproof silicate based Wood Adhesives and preparation method thereof
Technical field
The present invention relates to based Wood Adhesives field, be specially a kind of fire-resistant waterproof silicate based Wood Adhesives and preparation method thereof.
Background technology
As everyone knows, wood-based panel industry has great demand to sizing agent.Along with safety, environmental consciousness were rooted in the hearts of the people day by day in the last few years, modern society is also more and more higher with the requirement of sizing agent to wood-based plate, be mainly reflected in high-performance, environmental protection and functional aspect, the performance function type sizing agent of exploitation nontoxic pollution-free has become the main flow trend of current based Wood Adhesives development.
The agent of silicate gluing be at present most important, be also the most rising inorganic sizing agent of a class.The plurality of advantages such as it has environment-protecting asepsis, it is easy, with low cost to prepare, adhesiveproperties is good, temperature tolerance is excellent, ambient temperature curable, oil resistant, radiation hardness and good endurance, and be widely used in the bonding of the materials such as metal, pottery, glass, stone material.The agent of silicate gluing is introduced to bonding wood field, be expected to thoroughly solve aldehydes and other toxic compounds release And Spread of Solutes in the wood-based plate causing because of sizing agent, also help simultaneously and reduce Wood-based Panel Production energy consumption, improve wood-based plate flame-retardant performance, significant for promoting wood-based plate industrial upgrading and expanding silicate gluing agent range of application.
But, the stiff molecule structure of silicate cause solidify after sizing agent there is the major defect that fragility is large, water resistance is poor, greatly limited the practical application of silicate gluing agent in wood processing field.
Summary of the invention
Technical problem solved by the invention is to provide a kind of fire-resistant waterproof silicate based Wood Adhesives and preparation method thereof, to solve the problem in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of fire-resistant waterproof silicate based Wood Adhesives, its raw material comprises the component of following weight part:
Silicate solutions: 60-70 part;
Carbon nano tube dispersion liquid: 10-15 part;
Silane coupling agent: 1-3 part;
Organic silicon emulsion: 3-5 part;
Vermiculite power: 5-10 part;
White carbon black: 4-6 part;
Silicon phosphate: 8-12 part.
As the further scheme of the present invention: the component that the raw material of described fire-resistant waterproof silicate based Wood Adhesives is following weight part:
Silicate solutions: 65 parts;
Carbon nano tube dispersion liquid: 12.5 parts;
Silane coupling agent: 2 parts;
Organic silicon emulsion: 4 parts;
Vermiculite power: 7.5 parts;
White carbon black: 5 parts;
Silicon phosphate: 10 parts.
As the further scheme of the present invention: the massfraction of described silicate solutions mesosilicic acid salt is 40-60%, and silicate solutions is one or more combination of sodium silicate aqueous solution, potassium silicate aqueous solution, the lithium silicate aqueous solution.
As the further scheme of the present invention: in described carbon nano tube dispersion liquid, content of carbon nanotubes is 2-5wt%, and carbon nano tube dispersion liquid is one or more combination of Single Walled Carbon Nanotube aqueous dispersions, multi-walled carbon nano-tubes aqueous dispersions, Single Walled Carbon Nanotube polyvinyl alcohol dispersion liquid, multi-walled carbon nano-tubes polyvinyl alcohol dispersion liquid.
As the further scheme of the present invention: described silane coupling agent is one or more the combination of Silane coupling agent KH550, KH560 and KH570.
As the further scheme of the present invention: in described organic silicon emulsion, organosilyl massfraction is 20-50%, and organic silicon emulsion is one or more combination of anionic organic silicon emulsion, complex ionic organic silicon emulsion, self-cross linking type organic silicon emulsion.
The preparation method of described fire-resistant waterproof silicate based Wood Adhesives, comprises the following steps:
1) silane coupling agent is added in silicate solutions, at 60-80 ℃, stir 10-30min, then add carbon nano tube dispersion liquid, stir 10-30min with the rotating speed higher than 20 revolutions per seconds, obtain carbon nano-tube modification silicate solutions;
2) carbon nano-tube modification silicate solutions step 1) being obtained is cooled to after 40-50 ℃, slowly adds organic silicon emulsion, after fully mixing, solution is down to room temperature; Add vermiculite power to stir;
3) add step 2 after white carbon black and silicon phosphate are mixed) in the solution that obtains, stir.
As the further scheme of the present invention: stir 20min in step 1) at 70 ℃, then add carbon nano tube dispersion liquid, stir 20min with the rotating speed higher than 20 revolutions per seconds.
As the further scheme of the present invention: step 2) in carbon nano-tube modification silicate solutions that step 1) is obtained be cooled to 45 ℃.
As the further scheme of the present invention: the ratio that is 1:2 by white carbon black and silicon phosphate according to weight ratio in step 3) mixes.
technical characterstic of the present invention is:carbon nanotube has the mechanical property feature of high strength and modulus, and flexility is outstanding, utilizes carbon nanotube and silicate solutions blend, solidifies the object of glue fragility to realize strong reduction; Organic silicon emulsion can be captured hydrophilic alkali metal cation in silicate solutions by ion sequestration, plays and improves water tolerance and flexible effect; Vermiculite power, as filler, has the viscosity and the dual function of giving sizing agent flame-retardant performance of capable of regulating sizing agent; White carbon black and silicon phosphate are the water-resisting type composite curing agent of silicate solutions, can realize the water resistance of solidifying glue.Thereby above combined system can obtain high performance flame-retardant waterproof silicate based Wood Adhesives.
beneficial effect:abundant, excellent property, nontoxic that the present invention's main ingredient silicate used, carbon nanotube, white carbon black, silicon phosphate, vermiculite power etc. are all originated, has guaranteed high-performance and the environmental protection of sizing agent.The fire-resistant waterproof silicate based Wood Adhesives that the present invention makes can substitute the conventional carpenter such as urea-formaldehyde glue, white glue with vinyl sizing agent completely, and preparation technology is easy, is suitable for industrialization promotion and production application.
Embodiment
In order to make technique means of the present invention, creation characteristic, workflow, using method reach object and effect is easy to understand, below further set forth the present invention.
embodiment 1
1 part of silane coupling agent is added in 60 parts of silicate solutions, at 60 ℃, stir 10min, then add 10 parts of carbon nano tube dispersion liquids, stir 10min with the rotating speed higher than 20 revolutions per seconds, obtain carbon nano-tube modification silicate solutions; Then above-mentioned carbon nano-tube modification silicate solutions is cooled to after 40 ℃, slowly adds 3 parts of organic silicon emulsions, after fully mixing, solution is down to room temperature; Add 5 parts of vermiculite powers to stir; After 4 parts of white carbon blacks and 8 parts of silicon phosphates are mixed, add in above-mentioned solution, stir.
embodiment 2
2 parts of silane coupling agents are added in 65 parts of silicate solutions, at 70 ℃, stir 20min, then add 12 parts of carbon nano tube dispersion liquids, stir 20min with the rotating speed higher than 20 revolutions per seconds, obtain carbon nano-tube modification silicate solutions; Then above-mentioned carbon nano-tube modification silicate solutions is cooled to after 45 ℃, slowly adds 4 parts of organic silicon emulsions, after fully mixing, solution is down to room temperature; Add 7.5 parts of vermiculite powers to stir; After 5 parts of white carbon blacks and 10 parts of silicon phosphates are mixed, add in above-mentioned solution, stir.
embodiment 3
3 parts of silane coupling agents are added in 70 parts of silicate solutions, at 80 ℃, stir 30min, then add 15 parts of carbon nano tube dispersion liquids, stir 30min with the rotating speed higher than 20 revolutions per seconds, obtain carbon nano-tube modification silicate solutions; Then above-mentioned carbon nano-tube modification silicate solutions is cooled to after 50 ℃, slowly adds 5 parts of organic silicon emulsions, after fully mixing, solution is down to room temperature; Add 10 parts of vermiculite powers to stir; After 6 parts of white carbon blacks and 12 parts of silicon phosphates are mixed, add in above-mentioned solution, stir.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (10)

1. a fire-resistant waterproof silicate based Wood Adhesives, is characterized in that: its raw material comprises the component of following weight part:
Silicate solutions: 60-70 part;
Carbon nano tube dispersion liquid: 10-15 part;
Silane coupling agent: 1-3 part;
Organic silicon emulsion: 3-5 part;
Vermiculite power: 5-10 part;
White carbon black: 4-6 part;
Silicon phosphate: 8-12 part.
2. fire-resistant waterproof silicate based Wood Adhesives according to claim 1, is characterized in that: the component that the raw material of described fire-resistant waterproof silicate based Wood Adhesives is following weight part:
Silicate solutions: 65 parts;
Carbon nano tube dispersion liquid: 12.5 parts;
Silane coupling agent: 2 parts;
Organic silicon emulsion: 4 parts;
Vermiculite power: 7.5 parts;
White carbon black: 5 parts;
Silicon phosphate: 10 parts.
3. fire-resistant waterproof silicate based Wood Adhesives according to claim 1, it is characterized in that: the massfraction of described silicate solutions mesosilicic acid salt is 40-60%, and silicate solutions is one or more combination of sodium silicate aqueous solution, potassium silicate aqueous solution, the lithium silicate aqueous solution.
4. fire-resistant waterproof silicate based Wood Adhesives according to claim 1, it is characterized in that: in described carbon nano tube dispersion liquid, content of carbon nanotubes is 2-5wt%, and carbon nano tube dispersion liquid is one or more combination of Single Walled Carbon Nanotube aqueous dispersions, multi-walled carbon nano-tubes aqueous dispersions, Single Walled Carbon Nanotube polyvinyl alcohol dispersion liquid, multi-walled carbon nano-tubes polyvinyl alcohol dispersion liquid.
5. fire-resistant waterproof silicate based Wood Adhesives according to claim 1, is characterized in that: described silane coupling agent is one or more the combination of Silane coupling agent KH550, KH560 and KH570.
6. fire-resistant waterproof silicate based Wood Adhesives according to claim 1, it is characterized in that: in described organic silicon emulsion, organosilyl massfraction is 20-50%, and organic silicon emulsion is one or more combination of anionic organic silicon emulsion, complex ionic organic silicon emulsion, self-cross linking type organic silicon emulsion.
7. a preparation method for the fire-resistant waterproof silicate based Wood Adhesives as described in as arbitrary in claim 1-6, is characterized in that: comprise the following steps:
1) silane coupling agent is added in silicate solutions, at 60-80 ℃, stir 10-30min, then add carbon nano tube dispersion liquid, stir 10-30min with the rotating speed higher than 20 revolutions per seconds, obtain carbon nano-tube modification silicate solutions;
The carbon nano-tube modification silicate solutions that step 1) is obtained is cooled to after 40-50 ℃, slowly adds organic silicon emulsion, after fully mixing, solution is down to room temperature; Add vermiculite power to stir;
After white carbon black and silicon phosphate are mixed, add step 2) in the solution that obtains, stir.
8. fire-resistant waterproof silicate based Wood Adhesives according to claim 7, is characterized in that: in step 1), at 70 ℃, stir 20min, then add carbon nano tube dispersion liquid, stir 20min with the rotating speed higher than 20 revolutions per seconds.
9. fire-resistant waterproof silicate based Wood Adhesives according to claim 7, is characterized in that: step 2) in carbon nano-tube modification silicate solutions that step 1) is obtained be cooled to 45 ℃.
10. fire-resistant waterproof silicate based Wood Adhesives according to claim 7, is characterized in that: the ratio that is 1:2 by white carbon black and silicon phosphate according to weight ratio in step 3) mixes.
CN201410021560.5A 2014-01-17 2014-01-17 A kind of fire-resistant waterproof silicate based Wood Adhesives and preparation method thereof Active CN103773253B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104441127A (en) * 2014-11-18 2015-03-25 中南林业科技大学 Super-hydrophobic wood and preparation method thereof
CN104745102A (en) * 2015-01-19 2015-07-01 北京鑫元永立集成房屋有限公司 Nano heat-insulating tackifier and preparation method thereof
CN106147670A (en) * 2016-08-31 2016-11-23 安徽省阜阳沪千人造板制造有限公司 A kind of waterglass zein composite adhesive of fire-resistant waterproof
CN110330900A (en) * 2019-07-18 2019-10-15 中南林业科技大学 A kind of low cost blending and modifying waterglass wood adhesive and preparation method thereof
CN110948625A (en) * 2019-11-29 2020-04-03 大亚人造板集团有限公司 Waterproof agent for artificial board and application process thereof
CN111744744A (en) * 2020-05-18 2020-10-09 中国国家铁路集团有限公司 Construction process of non-expansion type fireproof coating for steel structure of reinforced train platform
CN114311178A (en) * 2022-01-07 2022-04-12 泗阳富艺木业股份有限公司 Flame-retardant anticorrosive plywood and preparation method thereof
CN115160645A (en) * 2022-07-13 2022-10-11 塔里木大学 Preparation method of vermiculite compound flame retardant material

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WO1998049116A1 (en) * 1997-04-30 1998-11-05 Crosfield Limited Suspensions with high storage stability, comprising an aqueous silicate solution and a filler material
CN1311280A (en) * 2000-03-01 2001-09-05 孙琦茂 Water-proof adhesive and method for mounting mosaic glazed tile onto ceiling
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104441127A (en) * 2014-11-18 2015-03-25 中南林业科技大学 Super-hydrophobic wood and preparation method thereof
CN104441127B (en) * 2014-11-18 2016-08-17 中南林业科技大学 A kind of super-hydrophobic timber and preparation method thereof
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CN106147670A (en) * 2016-08-31 2016-11-23 安徽省阜阳沪千人造板制造有限公司 A kind of waterglass zein composite adhesive of fire-resistant waterproof
CN110330900A (en) * 2019-07-18 2019-10-15 中南林业科技大学 A kind of low cost blending and modifying waterglass wood adhesive and preparation method thereof
CN110330900B (en) * 2019-07-18 2021-07-23 中南林业科技大学 Low-cost blending modified water glass wood adhesive and preparation method thereof
CN110948625A (en) * 2019-11-29 2020-04-03 大亚人造板集团有限公司 Waterproof agent for artificial board and application process thereof
CN111744744A (en) * 2020-05-18 2020-10-09 中国国家铁路集团有限公司 Construction process of non-expansion type fireproof coating for steel structure of reinforced train platform
CN114311178A (en) * 2022-01-07 2022-04-12 泗阳富艺木业股份有限公司 Flame-retardant anticorrosive plywood and preparation method thereof
CN115160645A (en) * 2022-07-13 2022-10-11 塔里木大学 Preparation method of vermiculite compound flame retardant material
CN115160645B (en) * 2022-07-13 2023-10-03 塔里木大学 Preparation method of vermiculite compound flame retardant material

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