CN109929488A - Zero aldehyde crystal adhesive of one kind and preparation method thereof - Google Patents
Zero aldehyde crystal adhesive of one kind and preparation method thereof Download PDFInfo
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- CN109929488A CN109929488A CN201910062750.4A CN201910062750A CN109929488A CN 109929488 A CN109929488 A CN 109929488A CN 201910062750 A CN201910062750 A CN 201910062750A CN 109929488 A CN109929488 A CN 109929488A
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Abstract
The present invention provides a kind of zero aldehyde crystal adhesive, each components including following parts by weight: 100~300 parts of polyvinyl alcohol；10~50 parts of cellulose；10~50 parts of starch；Thickener: 5~10；20~40 parts of auxiliary agent；355-750 parts of pure water.A kind of zero aldehyde crystal adhesive, the mixture of the polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 of adhesive gross mass 5-40% are accounted for including polyvinyl alcohol, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 are 1~8:1~24.The zero aldehyde crystal adhesive is used to produce wood-based plate, fundamentally solves the problems, such as wood-based plate formaldehyde emission by the zero aldehyde crystal adhesive without harmful substances such as formaldehyde, benzene,toluene,xylenes.
Description
Technical field
The present invention relates to field of adhesive technology, and in particular, to zero aldehyde crystal adhesive of one kind and preparation method thereof.
Background technique
Without aldehyde, plastic does not form a formula in industry of artificial boards for a long time, i.e., production wood-based plate must use phenolic aldehyde, urine
Aldehyde resin adhesive.Important is urea-formaldehyde resin adhesives for adhesive used by current Wood-based Panel Production, are secondly phenolic aldehyde tree
Rouge adhesive and melamine resin.These types of adhesive is formaldehyde series glue kind, most outstanding using these types of adhesive
Problem is Form aldehyde release, so formaldehyde i.e. our preventing for artificial board toxicity for usually discussing " where.In fact before two thousand years in
Compatriots have used protein adhesive and vegetable adhesive.Until 1970s Chinese Small-sized artificial board enterprise is also using albumen
Adhesive.1970s later period, urine aldehyde, phenolic resin are commonly used at home in the bonding of bamboo and wood wood-based plate.In recent years
Come China have many R&D institutions, universities and colleges and business circles research and develop low formaldehyde emission urea-formaldehyde resin adhesive and
It takes the measures such as masking, absorption and closing to reduce burst size of methanal, makes that its product Form aldehyde release reaches E1 and standard level is wanted
It asks.But again without the hidden danger for eliminating formaldehyde at all, once having the condition of release, the product of low formaldehyde content still can
Emitting formaldehyde and pollute environment and to human body generate harm.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of zero aldehyde crystal adhesive and preparation method thereof, no
Containing harmful substances such as formaldehyde, benzene,toluene,xylenes, which is used to produce wood-based plate, is fundamentally solved
The problem of wood-based plate formaldehyde emission.
Technical scheme is as follows: a kind of zero aldehyde crystal adhesive, including accounting for the poly- of adhesive gross mass 5-40%
The mixture of vinyl alcohol 17-88 and polyvinyl alcohol 17-99, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99
For 1~8:1~24.
The zero aldehyde crystal adhesive, each component including following parts by weight: 100~300 parts of polyvinyl alcohol；Cellulose 10
~50 parts；10~50 parts of starch；Thickener: 5~10；20~40 parts of auxiliary agent；355-750 parts of pure water；Wherein, polyvinyl alcohol
17-99 parts by weight are 12~96 parts, and polyvinyl alcohol 17-88 parts by weight are 12~288 parts.
The auxiliary agent includes 5~10 parts of sodium sulfocyanate, 5~10 parts of calcium thiocyanate, 5~10 parts of butanol, 5~10 parts of boric acid.
The thickener is xanthan gum, gelatin, guar gum, natural rubber, agar, methylcellulose, hydroxy ethyl fiber
Element, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, organobentonite, diatomite, fume colloidal silica, sodium bentonite,
Silica hydrogel etc., polyurethane thickener, Sodium Polyacrylate, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone, polyoxyethylene
One of alkene, carbomer, polyacrylic acid, Polyacrylate Emulsion or several compositions.
The preparation method of the zero aldehyde crystal adhesive, includes the following steps:
(1) it is weighed by formula each component；
(2) polyvinyl alcohol, water and auxiliary agent are added in reaction kettle, stirring is warming up to 80~98 DEG C, is allowed to whole dissolutions；
(3) it is slowly added cellulose and starch at 60~70 DEG C, reacts 1h after adding；
(4) 40 DEG C are cooled to, discharging.
Further include following steps:
(5) it using preceding diphenyl methane -4,4'- diisocyanate that gross mass 1-15% is added, stirs evenly.
In zero aldehyde crystal adhesive of the present invention, major ingredient selects the mixing of polyvinyl alcohol 17-99 and polyvinyl alcohol 17-88
Object.85 DEG C, 3~12mgKOH/g of saponification number of polyvinyl alcohol 17-99 glass transition temperature, it is dissolved in 90~95 DEG C of hot water, it is almost insoluble
In cold water, concentration is greater than the aqueous solution of l0%, at room temperature will gel gelation, and polyvinyl alcohol 17-88 mobility at room temperature
Preferably, it is not easy to form jelly, thus use the two with, increase the viscosity of mixture, adhesive easy to form.In order to
Make the zero aldehyde crystal adhesive viscosity stabilization, suitable sodium sulfocyanate is added in solution, the viscosity such as calcium thiocyanate, butanol are steady
Determine agent.
Gradually change colour in addition, polyvinyl alcohol 17-99 is heated to 100 DEG C or more, 150 DEG C or more whens, change colour quickly, 200 DEG C with
It will be decomposed when upper.For this purpose, being changed colour by the way that suitable boric acid is added and is inhibited under its high temperature.However, polyvinyl alcohol 17-99 water
Solution is added boric acid and easily causes gel, and 0.1% boric acid of solution quality will make 5% polyvinyl alcohol of mass concentration
17-99 aqueous gel, and the borax amount of same density polyethylene alcohol 17-88 aqueous gel is caused then to need 1%.For
This prevents adhesive from occurring under the action of micro borax for polyvinyl alcohol 17-99 and polyvinyl alcohol 17-88 to be used in mixed way
Gelation.
The invention has the benefit that this zero aldehyde crystal adhesive, without nuisances such as formaldehyde, benzene,toluene,xylenes
Matter, bonding strength is up to 1.2~1.98MPa, and has the performances such as water-fast, heat-resisting, solvent resistant.
Specific embodiment
In order to make goal of the invention of the invention, technical solution and technical effect are more clearly understood, below with reference to specific reality
Applying mode, the present invention is described further.It should be understood that specific embodiment described herein, for explaining only the invention,
It is not intended to limit the present invention.
Embodiment 1: a kind of zero aldehyde crystal adhesive, including account for adhesive gross mass 5% polyvinyl alcohol 17-88 and poly- second
The mixture of enol 17-99, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 are 1:1.
The zero aldehyde crystal adhesive, each component including following parts by weight: 100 parts of polyvinyl alcohol；Compound cellulose 10
Part；40 parts of composite starch；Thickener: 8；25 parts of auxiliary agent；750 parts of pure water；Wherein, polyvinyl alcohol 17-99 parts by weight are 50 parts,
Polyvinyl alcohol 17-88 parts by weight are 50 parts.
The auxiliary agent includes 5 parts of sodium sulfocyanate, 5 parts of calcium thiocyanate, 10 parts of butanol, 5 parts of boric acid.
The thickener is the composition of xanthan gum and gelatin.
The preparation method of the zero aldehyde crystal adhesive, includes the following steps:
(1) it is weighed by formula each component；
(2) polyvinyl alcohol, water and auxiliary agent are added in reaction kettle, stirring is warming up to 80~98 DEG C, is allowed to whole dissolutions；
(3) it is slowly added cellulose and starch at 60~70 DEG C, reacts 1h after adding；
(4) 40 DEG C are cooled to, discharging.
Further include following steps:
(5) it using preceding diphenyl methane -4,4'- diisocyanate that gross mass 1% is added, stirs evenly.
Embodiment 2: a kind of zero aldehyde crystal adhesive, including accounting for the polyvinyl alcohol 17-88 of adhesive gross mass 20% and gathering
The mixture of vinyl alcohol 17-99, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 are 3:11.
The zero aldehyde crystal adhesive, each component including following parts by weight: 140 parts of polyvinyl alcohol；Compound cellulose 25
Part；20 parts of composite starch；Thickener: 5；30 parts of auxiliary agent；550 parts of pure water；Wherein, polyvinyl alcohol 17-99 parts by weight are 30 parts,
Polyvinyl alcohol 17-88 parts by weight are 110 parts.
The auxiliary agent includes 7 parts of sodium sulfocyanate, 8 parts of calcium thiocyanate, 8 parts of butanol, 7 parts of boric acid.
The thickener is hydroxypropyl methyl cellulose.
The preparation method of the zero aldehyde crystal adhesive, includes the following steps:
(1) it is weighed by formula each component；
(2) polyvinyl alcohol, water and auxiliary agent are added in reaction kettle, stirring is warming up to 80~98 DEG C, is allowed to whole dissolutions；
(3) it is slowly added cellulose and starch at 60~70 DEG C, reacts 1h after adding；
(4) 40 DEG C are cooled to, discharging.
Further include following steps:
(5) it using preceding diphenyl methane -4,4'- diisocyanate that gross mass 2% is added, stirs evenly.
Embodiment 3: a kind of zero aldehyde crystal adhesive, including accounting for the polyvinyl alcohol 17-88 of adhesive gross mass 30% and gathering
The mixture of vinyl alcohol 17-99, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 are 1:24.
The zero aldehyde crystal adhesive, each component including following parts by weight: 300 parts of polyvinyl alcohol；Compound cellulose 40
Part；40 parts of composite starch；Thickener: 10；30 parts of auxiliary agent；355 parts of pure water；Wherein, polyvinyl alcohol 17-99 parts by weight are 12
Part, polyvinyl alcohol 17-88 parts by weight are 288 parts.
The auxiliary agent includes 9 parts of sodium sulfocyanate, 6 parts of calcium thiocyanate, 6 parts of butanol, 9 parts of boric acid.
The thickener is the composition of polyurethane thickener and carbomer.
The preparation method of the zero aldehyde crystal adhesive, includes the following steps:
(1) it is weighed by formula each component；
(2) polyvinyl alcohol, water and auxiliary agent are added in reaction kettle, defoaming agent is added dropwise, stirring is warming up to 80~98 DEG C, is allowed to
All dissolutions；
(3) it is slowly added cellulose and starch at 60~70 DEG C, reacts 1h after adding；
(4) 40 DEG C are cooled to, discharging.
Further include following steps:
(5) it using preceding diphenyl methane -4,4'- diisocyanate that gross mass 5% is added, stirs evenly.
Embodiment 4: a kind of zero aldehyde crystal adhesive, including accounting for the polyvinyl alcohol 17-88 of adhesive gross mass 40% and gathering
The mixture of vinyl alcohol 17-99, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 are 1:12.
The zero aldehyde crystal adhesive, each component including following parts by weight: 260 parts of polyvinyl alcohol；Compound cellulose 50
Part；10 parts of composite starch；Thickener: 6 parts；20 parts of auxiliary agent；450 parts of pure water；Wherein, polyvinyl alcohol 17-99 parts by weight are 13
Part, polyvinyl alcohol 17-88 parts by weight are 247 parts.
The auxiliary agent includes 5 parts of sodium sulfocyanate, 5 parts of calcium thiocyanate, 5 parts of butanol, 5 parts of boric acid.
The thickener is the composition of natural rubber, diatomite and polyacrylamide.
The preparation method of the zero aldehyde crystal adhesive, includes the following steps:
(1) it is weighed by formula each component；
(2) polyvinyl alcohol, water and auxiliary agent are added in reaction kettle, defoaming agent is added dropwise, stirring is warming up to 80~98 DEG C, is allowed to
All dissolutions；
(3) it is slowly added cellulose and starch at 60~70 DEG C, reacts 1h after adding；
(4) 40 DEG C are cooled to, discharging.
Further include following steps:
(5) it using preceding diphenyl methane -4,4'- diisocyanate that gross mass 10% is added, stirs evenly.
Embodiment 5: a kind of zero aldehyde crystal adhesive, including accounting for the polyvinyl alcohol 17-88 of adhesive gross mass 25% and gathering
The mixture of vinyl alcohol 17-99, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 are 8:1.
The zero aldehyde crystal adhesive, each component including following parts by weight: 180 parts of polyvinyl alcohol；Compound cellulose 38
Part；50 parts of composite starch；Thickener: 9 parts；40 parts of auxiliary agent；400 parts of pure water；Wherein, polyvinyl alcohol 17-99 parts by weight are 160
Part, polyvinyl alcohol 17-88 parts by weight are 20 parts.
The auxiliary agent includes 10 parts of sodium sulfocyanate, 10 parts of calcium thiocyanate, 10 parts of butanol, 10 parts of boric acid.
The thickener is the composition in Sodium Polyacrylate and Polyacrylate Emulsion.
The preparation method of the zero aldehyde crystal adhesive, includes the following steps:
(1) it is weighed by formula each component；
(2) polyvinyl alcohol, water and auxiliary agent are added in reaction kettle, defoaming agent is added dropwise, stirring is warming up to 80~98 DEG C, is allowed to
All dissolutions；
(3) it is slowly added cellulose and starch at 60~70 DEG C, reacts 1h after adding；
(4) 40 DEG C are cooled to, discharging.
Further include following steps:
(5) it using preceding diphenyl methane -4,4'- diisocyanate that gross mass 15% is added, stirs evenly.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, architectural form cans be flexible and changeable, can be with derivative series product.It only makes several
Simple deduction or replace all shall be regarded as belonging to present invention scope of patent protection determined by the appended claims.
Claims (6)
1. a kind of zero aldehyde crystal adhesive, which is characterized in that including account for adhesive gross mass 5-40% polyvinyl alcohol 17-88 and
The mixture of polyvinyl alcohol 17-99, wherein the mass ratio of polyvinyl alcohol 17-88 and polyvinyl alcohol 17-99 are 1~8:1~24.
2. zero aldehyde crystal adhesive as described in claim 1, which is characterized in that each component including following parts by weight: poly- second
100~300 parts of enol；10~50 parts of cellulose；10~50 parts of starch；Thickener: 5~10；20~40 parts of auxiliary agent；Pure water
355-750 parts；Wherein, polyvinyl alcohol 17-99 parts by weight are 12~96 parts, and polyvinyl alcohol 17-88 parts by weight are 12~288 parts.
3. zero aldehyde crystal adhesive as claimed in claim 2, which is characterized in that the auxiliary agent includes 5~10 parts of sodium sulfocyanate,
5~10 parts of calcium thiocyanate, 5~10 parts of butanol, 5~10 parts of boric acid.
4. zero aldehyde crystal adhesive as claimed in claim 2, which is characterized in that the thickener is xanthan gum, gelatin, melon
That glue, agar, methylcellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, has natural rubber
Machine bentonite, diatomite, fume colloidal silica, sodium bentonite, Silica hydrogel etc., polyurethane thickener, Sodium Polyacrylate, poly- second
Enol, polyacrylamide, polyvinylpyrrolidone, polyethylene glycol oxide, carbomer, polyacrylic acid, polyacrylate copolymerization cream
One of liquid or several compositions.
5. the preparation method of zero aldehyde crystal adhesive as described in claim any one of 1-4, which is characterized in that including walking as follows
It is rapid:
(1) it is weighed by formula each component；
(2) polyvinyl alcohol, water and auxiliary agent are added in reaction kettle, stirring is warming up to 80~98 DEG C, is allowed to whole dissolutions；
(3) it is slowly added cellulose and starch at 60~70 DEG C, reacts 1h after adding；
(4) 40 DEG C are cooled to, discharging.
6. the preparation method of zero aldehyde crystal adhesive as claimed in claim 5, which is characterized in that further include following steps:
(5) it using preceding diphenyl methane -4,4'- diisocyanate that gross mass 1-15% is added, stirs evenly.
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| CN201910062750.4A CN109929488A (en) | 2019-01-23 | 2019-01-23 | Zero aldehyde crystal adhesive of one kind and preparation method thereof |
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| CN201910062750.4A CN109929488A (en) | 2019-01-23 | 2019-01-23 | Zero aldehyde crystal adhesive of one kind and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408356A (en) * | 2019-08-27 | 2019-11-05 | 福建泉州三闲家居饰品有限公司 | A kind of epoxy polyurethane crystal glue formula |
| CN110628358A (en) * | 2019-09-19 | 2019-12-31 | 重庆兴渝新材料研究院有限公司 | Preparation method of plant pulp glue solution for building |
| CN113249067A (en) * | 2021-05-31 | 2021-08-13 | 江西亚太化工有限公司 | Environment-friendly adhesive special for bamboo wood and preparation method thereof |
| CN113861891A (en) * | 2021-10-26 | 2021-12-31 | 江苏美标家居科技有限公司 | Water-based low-melting-point zero-formaldehyde adhesive and preparation method thereof |
| CN114989754A (en) * | 2022-05-26 | 2022-09-02 | 安徽光智科技有限公司 | Adhesive for manufacturing scintillation crystal array and manufacturing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408356A (en) * | 2019-08-27 | 2019-11-05 | 福建泉州三闲家居饰品有限公司 | A kind of epoxy polyurethane crystal glue formula |
| CN110628358A (en) * | 2019-09-19 | 2019-12-31 | 重庆兴渝新材料研究院有限公司 | Preparation method of plant pulp glue solution for building |
| CN110628358B (en) * | 2019-09-19 | 2021-05-14 | 重庆兴渝新材料研究院有限公司 | Preparation method of plant pulp glue solution for building |
| CN113249067A (en) * | 2021-05-31 | 2021-08-13 | 江西亚太化工有限公司 | Environment-friendly adhesive special for bamboo wood and preparation method thereof |
| CN113861891A (en) * | 2021-10-26 | 2021-12-31 | 江苏美标家居科技有限公司 | Water-based low-melting-point zero-formaldehyde adhesive and preparation method thereof |
| CN114989754A (en) * | 2022-05-26 | 2022-09-02 | 安徽光智科技有限公司 | Adhesive for manufacturing scintillation crystal array and manufacturing method thereof |
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Application publication date: 20190625 |