CN102838956A - Environment-friendly urea resin adhesive and preparation method thereof - Google Patents
Environment-friendly urea resin adhesive and preparation method thereof Download PDFInfo
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- CN102838956A CN102838956A CN2012102296203A CN201210229620A CN102838956A CN 102838956 A CN102838956 A CN 102838956A CN 2012102296203 A CN2012102296203 A CN 2012102296203A CN 201210229620 A CN201210229620 A CN 201210229620A CN 102838956 A CN102838956 A CN 102838956A
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Abstract
The invention discloses an environment-friendly urea resin adhesive, prepared from the following components in parts by weight: 30-38 parts of urea, 58-67 parts of oxalaldehyde, 0.5-2 parts of corn starch, 0.5-1.5 parts of borax, 0.6-2 parts of tripolycyanamide. The invention also discloses a preparation method of the environment-friendly urea resin adhesive. The environment-friendly urea resin adhesive prepared by the invention contains no formaldehyde and no irritant smell, is beneficial to human health and environmental protection and has the characteristics of long stable storage period and simple production process.
Description
Technical field
The present invention relates to urea-formaldehyde resin adhesive, be specifically related to a kind of environmentally friendly urea-formaldehyde resin adhesive and preparation method thereof.
Background technology
Common urea-formaldehyde resin be urea and formaldehyde under catalysis (base catalysis or acid catalysis) condition, a kind of hot setting adhesive that polycondensation forms.Urea-formaldehyde resin has the bonding strength height, solidification rate is fast and can mix, make plurality of advantages such as simple with water, is widely applied in wood-based plate and the wood-processing industry, accounts for 80% of the sector tackiness agent usage quantity, and presents the impetus of sustainable growth.But because urea-formaldehyde resin is because of existing materials such as formaldehyde and methylol and semi-acetal in the balanced reaction, its free formaldehyde can slowly discharge from wood-based plate, causes indoor formaldehyde content to exceed standard for a long time, not only contaminate environment, and serious harm HUMAN HEALTH.
For solving the problem that free formaldehyde discharges in the urea-formaldehyde resin, the method for available technology adopting has: change urea aldehyde ratio, increase amount of urea and reduce free formaldehyde; The way of using urea in batches to add reduces free formaldehyde; Use " formaldehyde-trapping agent " to reduce free formaldehyde or the like.But these methods still can't be eliminated the free formaldehyde in the resin fully, so the urea-formaldehyde resin adhesive of the friendly type of research environment becomes current urgent problem.
Summary of the invention:
The objective of the invention is deficiency, a kind of environmentally friendly urea-formaldehyde resin adhesive and preparation method thereof is provided to prior art.
Above-mentioned purpose realizes through following technical scheme:
A kind of environmentally friendly urea-formaldehyde resin adhesive is that the feedstock production by following mass fraction forms: urea 30-38 part, oxalic dialdehyde 58-67 part, W-Gum 0.5-2 part, borax 0.5-1.5 part, trimeric cyanamide 0.6-2 part.
The preparation method of described environmentally friendly urea-formaldehyde resin adhesive may further comprise the steps:
(1) with said urea, oxalic dialdehyde, trimeric cyanamide and W-Gum join in the reaction kettle successively, stirs, and is heated to 55-80 ℃, insulation reaction 1.5-3.5 hour;
(2) add borax, regulating the pH value is 5-7, cooling discharging.
The invention has the beneficial effects as follows:
(1) the present invention adopts oxalic dialdehyde instead of formaldehyde and urea reaction to prepare urea-formaldehyde resin, has accomplished that really no free formaldehyde discharges, and non-irritating smell helps HUMAN HEALTH and environment protection.
(2) the present invention adopts borax as linking agent, has improved the viscosity and the initial bonding strength of tackiness agent.
(3) the present invention adds the consolidation strength that trimeric cyanamide has improved sheet material.
(4) the environmentally friendly urea-formaldehyde resin adhesive stable storing phase of the present invention long, production technique is simple, is easy to operate and control.
Embodiment:
Embodiment 1
A kind of environmentally friendly urea-formaldehyde resin adhesive is formed by following feedstock production: 30 parts in urea, 67 parts of oxalic dialdehydes, 1 part of trimeric cyanamide, 0.5 part of W-Gum, 1.5 parts of boraxs.
The preparation method is:
(1) get urea 30Kg, oxalic dialdehyde 67Kg. trimeric cyanamide 1Kg, W-Gum 0.5Kg joins in the reaction kettle successively, stirs, and temperature of reaction system is heated to 80 ℃, condensing reflux 1.5h;
(2) in step (1) reaction system, add 1.5 parts of boraxs, using NaOH to regulate this system pH then is 5.0, and cooling discharging obtains the environmentally friendly urea-formaldehyde resin adhesive that thick liquid faint yellow, non-irritating smell is preparation.
Embodiment 2
A kind of environmentally friendly urea-formaldehyde resin adhesive is formed by following feedstock production: 35 parts in urea, 62 parts of oxalic dialdehydes, 0.6 part of trimeric cyanamide, 0.9 part of W-Gum, 1.5 parts of boraxs.
The preparation method is:
(1) urea 35Kg, oxalic dialdehyde 62Kg and trimeric cyanamide 0.6Kg W-Gum 0.9Kg are joined in the reaction kettle successively, stir, temperature of reaction system is heated to 55 ℃, condensing reflux 3.5h;
(2) in step (1) reaction system, add borax 1.5Kg, using KOH to regulate this system pH then is 7.0, and cooling discharging obtains the environmentally friendly urea-formaldehyde resin adhesive that thick liquid faint yellow, non-irritating smell is preparation.
Embodiment 3
A kind of environmentally friendly urea-formaldehyde resin adhesive is formed by following feedstock production: 38 parts in urea, 58 parts of oxalic dialdehydes, 1.5 parts of trimeric cyanamides, 2 parts of W-Gums, 1 part of borax.
The preparation method is:
(1) urea 38Kg, oxalic dialdehyde 58Kg, trimeric cyanamide 1.5Kg, W-Gum 2Kg are joined in the reaction kettle successively, stir, temperature of reaction system is heated to 70 ℃, condensing reflux 3h;
(2) in step (1) reaction system, add borax 1Kg, using ammoniacal liquor to regulate this system pH then is 5.5, and cooling discharging obtains the environmentally friendly urea-formaldehyde resin adhesive that thick liquid faint yellow, non-irritating smell is preparation.
Embodiment 4
A kind of environmentally friendly urea-formaldehyde resin adhesive is formed by following feedstock production: 34 parts in urea, 62 parts of oxalic dialdehydes, 2 parts of trimeric cyanamides, 0.5 part of W-Gum, 0.5 part of borax.
The preparation method is:
(1) urea 34Kg, oxalic dialdehyde 62Kg, trimeric cyanamide 2Kg, W-Gum 0.5Kg are joined in the reaction kettle successively, stir, temperature of reaction system is heated to 70 ℃, condensing reflux 2.5h;
(2) in step (1) reaction system, add borax 0.5Kg, using NaOH to regulate this system pH then is 5.0, and cooling discharging obtains the environmentally friendly urea-formaldehyde resin adhesive that thick liquid faint yellow, non-irritating smell is preparation.
Claims (2)
1. environmentally friendly urea-formaldehyde resin adhesive is characterized in that being that feedstock production by following mass fraction forms: urea 30-38 part, oxalic dialdehyde 58-67 part, W-Gum 0.5-2 part, borax 0.5-1.5 part, trimeric cyanamide 0.6-2 part.
2. the preparation method of environmentally friendly urea-formaldehyde resin adhesive as claimed in claim 1 is characterized in that may further comprise the steps:
(1) with said urea, oxalic dialdehyde, trimeric cyanamide and W-Gum join in the reaction kettle successively, stirs, and is heated to 55-80 ℃, insulation reaction 1.5-3.5 hour;
(2) add borax, regulating the pH value is 5-7, cooling discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102296203A CN102838956A (en) | 2012-07-04 | 2012-07-04 | Environment-friendly urea resin adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102296203A CN102838956A (en) | 2012-07-04 | 2012-07-04 | Environment-friendly urea resin adhesive and preparation method thereof |
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| CN102838956A true CN102838956A (en) | 2012-12-26 |
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| CN2012102296203A Pending CN102838956A (en) | 2012-07-04 | 2012-07-04 | Environment-friendly urea resin adhesive and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333651A (en) * | 2013-07-02 | 2013-10-02 | 西南林业大学 | Hyperbranched resin adhesive with low formaldehyde release rate as well as preparation method and application of hyperbranched resin adhesive |
| CN103484046A (en) * | 2013-08-20 | 2014-01-01 | 湖北省宏源药业有限公司 | Manufacturing method of low-formaldehyde-release-amount plywood |
| CN103509166A (en) * | 2013-09-23 | 2014-01-15 | 山东凯源木业有限公司 | Melamine-modified urea-formaldehyde resin and preparation method thereof |
| CN104311767A (en) * | 2014-10-10 | 2015-01-28 | 湖北省宏源药业科技股份有限公司 | Modified urea-formaldehyde resin adhesive and preparation method thereof |
| CN104987441A (en) * | 2015-07-07 | 2015-10-21 | 西南大学 | Formaldehyde-free lining cloth adhesive and preparation method of formaldehyde-free lining cloth |
| CN105400467A (en) * | 2015-12-18 | 2016-03-16 | 太仓康盛化工有限公司 | High-bonding-strength low-formaldehyde-emission adhesive for glued boards |
| CN105400468A (en) * | 2015-12-18 | 2016-03-16 | 太仓康盛化工有限公司 | Preparation method of high-bonding-strength low-formaldehyde-emission adhesive used for glued boards |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054504A (en) * | 2006-04-16 | 2007-10-17 | 邹静中 | Process for preparing formaldehyde-free phenolic resin adhesive |
| CN101265314A (en) * | 2008-04-30 | 2008-09-17 | 北京化工大学 | Environmental protection urea-formaldehyde resin and preparation method thereof |
| CN102229791A (en) * | 2011-06-14 | 2011-11-02 | 王喆 | Environment-friendly type urea-formaldehyde resin adhesive and production method thereof |
-
2012
- 2012-07-04 CN CN2012102296203A patent/CN102838956A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054504A (en) * | 2006-04-16 | 2007-10-17 | 邹静中 | Process for preparing formaldehyde-free phenolic resin adhesive |
| CN101265314A (en) * | 2008-04-30 | 2008-09-17 | 北京化工大学 | Environmental protection urea-formaldehyde resin and preparation method thereof |
| CN102229791A (en) * | 2011-06-14 | 2011-11-02 | 王喆 | Environment-friendly type urea-formaldehyde resin adhesive and production method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333651A (en) * | 2013-07-02 | 2013-10-02 | 西南林业大学 | Hyperbranched resin adhesive with low formaldehyde release rate as well as preparation method and application of hyperbranched resin adhesive |
| CN103333651B (en) * | 2013-07-02 | 2014-11-05 | 西南林业大学 | Hyperbranched resin adhesive with low formaldehyde release rate as well as preparation method and application of hyperbranched resin adhesive |
| CN103484046A (en) * | 2013-08-20 | 2014-01-01 | 湖北省宏源药业有限公司 | Manufacturing method of low-formaldehyde-release-amount plywood |
| CN103509166A (en) * | 2013-09-23 | 2014-01-15 | 山东凯源木业有限公司 | Melamine-modified urea-formaldehyde resin and preparation method thereof |
| CN104311767A (en) * | 2014-10-10 | 2015-01-28 | 湖北省宏源药业科技股份有限公司 | Modified urea-formaldehyde resin adhesive and preparation method thereof |
| CN104987441A (en) * | 2015-07-07 | 2015-10-21 | 西南大学 | Formaldehyde-free lining cloth adhesive and preparation method of formaldehyde-free lining cloth |
| CN104987441B (en) * | 2015-07-07 | 2019-03-22 | 西南大学 | A kind of preparation method of formaldehydeless lining cloth glue and formaldehydeless lining cloth |
| CN105400467A (en) * | 2015-12-18 | 2016-03-16 | 太仓康盛化工有限公司 | High-bonding-strength low-formaldehyde-emission adhesive for glued boards |
| CN105400468A (en) * | 2015-12-18 | 2016-03-16 | 太仓康盛化工有限公司 | Preparation method of high-bonding-strength low-formaldehyde-emission adhesive used for glued boards |
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| CB03 | Change of inventor or designer information |
Inventor after: Lv Zhiguo Inventor after: Duan Xiaoliu Inventor after: Zhou Yongjun Inventor after: Jiang Zhiping Inventor before: Lv Zhiguo |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LV ZHIGUO TO: LV ZHIGUO DUAN XIAOLIU ZHOU YONGJUN JIANG ZHIPING |
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Application publication date: 20121226 |