CN104592920A - Urea-formaldehyde adhesive and preparation method thereof - Google Patents
Urea-formaldehyde adhesive and preparation method thereof Download PDFInfo
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- CN104592920A CN104592920A CN201510067198.XA CN201510067198A CN104592920A CN 104592920 A CN104592920 A CN 104592920A CN 201510067198 A CN201510067198 A CN 201510067198A CN 104592920 A CN104592920 A CN 104592920A
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Abstract
The invention relates to the technical field of urea-formaldehyde adhesives, and particularly relates to a urea-formaldehyde adhesive additive for artificial boards and a preparation method thereof. The urea-formaldehyde adhesive is composed of the following components in parts by mass: 420-480 parts of 36% formaldehyde, 240-280 parts of urea, 25-30 parts of melamine, 50-80 parts of degreased bean albumen powder, 0.5-0.9 part of polyvinyl alcohol, 2-6 parts of 26 wt% ammonia water, 0.6-0.8 part of sodium dodecylsulfate, 0.5-0.7 part of aldehyde reducing agent, 8-15 parts of complexing agent, 50-80 parts of softened water and 2-8 parts of calcium hydroxide powder. The urea-formaldehyde adhesive additive lowers the amount of free formaldehyde in the urea-formaldehyde glue adhesive, enhances the quality performance of the urea-formaldehyde adhesive, increases the viscosity to some extent, and greatly improves the stability and water resistance. The urea-formaldehyde adhesive has the advantages of low cost and simple preparation process, and is convenient for popularization and use.
Description
Technical field
The present invention relates to urea-formaldehyde glue technical field of adhesive, especially a kind ofly relate to additive of the urea-formaldehyde glue tackiness agent of wood-based plate and preparation method thereof.
Background technology
Wood-based plate be with timber or other culled wood plants for raw material, be separated into after various unit material through certain mechanical workout, apply or do not apply sheet material that sizing agent and other additives check or pressing.Mainly comprise the three major types products such as glued board, shaving board and fiberboard, its extension product and deep processed product reach hundreds of.The generation of wood-based plate improves the comprehensive utilization ratio of timber, and 1 cubic metre of wood-based plate can replace 3 ~ 5 cubic metres of logs to use.
Formaldehyde is the raw material manufacturing synthetic resins, paint, plastics and regenerated fiber, is the important source material that wood-based panel industry manufactures urea-formaldehyde resin adhesive and Phenol aldehyde resin.The places such as the new home of people and office all will be carried out upholstery and be bought furniture, because finishing and Furniture manufacture will use a large amount of artificial board, and produce a large amount of sizing agent using the high formaldehyde of toxicity to manufacture for raw material of wood-based plate needs, because the Form aldehyde release phase in tackiness agent is very long, generally reach 15 years, cause formaldehyde to become principal pollutant in room air.Formaldehyde becomes more highly toxic material, and on China's noxious chemical priority acccess control list, formaldehyde is in second.Formaldehyde has been defined as carcinogenic and cause deformed material by the World Health Organization, be generally acknowledged allergen, is also one of potential pressure sudden change material.Long Term Contact low dosage formaldehyde can cause chronic respiratory tract disease, causes nasopharyngeal carcinoma, brain tumor, nuclear transgenation, commissure and DNA and protein commissure and suppress the reparation of DNA damage in DNA single love.
The method reducing burst size of methanal in wood-based plate mainly contains: (1) adopts low mole prop0rtion modified urea-formaldehyde resin adhesive; (2) in wood-based plate urea-formaldehyde glue tackiness agent, formaldehyde-trapping agent is added; (3) aftertreatment is carried out to wood-based plate.But these technical schemes all also exist defect, (1), although adopt low mole prop0rtion modified urea-formaldehyde viscose binder effectively can reduce the burst size of methanal of wood-based panel product, the check intensity of product often also reduces; (2) in wood-based plate urea-formaldehyde glue tackiness agent, add formaldehyde-trapping agent, although effectively reduce the burst size of free formaldehyde, reduce the bonding strength of wood-based plate simultaneously, and substantially increase the cost of tackiness agent; (3) aftertreatment is carried out to wood-based plate, but the equipment cost of aftertreatment is larger often.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides additive of a kind of urea-formaldehyde glue tackiness agent and preparation method thereof.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of urea-formaldehyde glue tackiness agent, the mass parts of described urea-formaldehyde glue tackiness agent consists of: 420 ~ 480 parts, the formaldehyde of 36%, 240 ~ 280 parts, urea, trimeric cyanamide 25 ~ 30 parts, degreasing soybean protein powder 50-80 part, polyvinyl alcohol 0.5 ~ 0.9 part, massfraction is the ammoniacal liquor 2 ~ 6 parts of 26%, sodium laurylsulfonate 0.6 ~ 0.8 part, formaldehyde reducing agent 0.5 ~ 0.7 part, complexing agent 8-15 part, softening water 50-80 part, calcium hydroxide powder 2-8 part.
Further, the mass parts of described formaldehyde reducing agent is composed as follows: trimeric cyanamide 1.5-3.5 part, sodium-chlor 1.75-3.8 part, sodium laurylsulfonate 0.08-0.12 part.
Further, the mass parts of described formaldehyde reducing agent is composed as follows: trimeric cyanamide 2.5 parts, 2.5 parts, sodium-chlor, sodium laurylsulfonate 0.1 part.
Further, described complexing agent is made up of Tai-Ace S 150 and zirconium carbonate, and the mass ratio of described Tai-Ace S 150 and zirconium carbonate is 1.2-1.8:1.
Further, described complexing agent is made up of Tai-Ace S 150 and zirconium carbonate, and the mass ratio of described Tai-Ace S 150 and zirconium carbonate is 1.5:1.
Further, the mass parts of described urea-formaldehyde glue tackiness agent consists of: 450 parts, the formaldehyde of 36%, 260 parts, urea, trimeric cyanamide 28 parts, 65 parts, degreasing soybean protein powder, polyvinyl alcohol 0.7 part, massfraction is the ammoniacal liquor 4 parts of 26%, sodium laurylsulfonate 0.7 part, formaldehyde reducing agent 0.6 part, complexing agent 12 parts, softening water 65 parts, 4 parts, calcium hydroxide.
Prepare a kind of method of urea-formaldehyde glue tackiness agent, described method is as follows:
(1) 420 ~ 480 parts, the formaldehyde of 36% is taken by ratio of weight and the number of copies, 240 ~ 280 parts, urea, trimeric cyanamide 25 ~ 30 parts, degreasing soybean protein powder 50-80 part, polyvinyl alcohol 0.5 ~ 0.9 part, massfraction is the ammoniacal liquor 2 ~ 6 parts of 26%, sodium laurylsulfonate 0.6 ~ 0.8 part, formaldehyde reducing agent 0.5 ~ 0.7 part, complexing agent 8-15 part, softening water 50-80 part, calcium hydroxide 2-8 part.
(2) formaldehyde of take in step (1) 36% is added in reactor, be warming up to 32 ~ 35 DEG C, sodium hydroxide solution adjust ph with 35 ~ 40% is 8.0, first add half urea, mix, be 6.3 ~ 6.5 by the sodium hydroxide solution adjust ph of 35 ~ 40%, be warming up to 90-95 DEG C, insulation 35 ~ 45min, obtains mixed solution;
(3) be 4.5 ~ 4.7 by the pH value of mixed solution in acetic acid regulating step (2), mixed solution is added drop-wise in the water of 12 ~ 15 DEG C, after reaction terminates, be adjust ph be 6.8 by the sodium hydroxide solution adjust ph of 35 ~ 40% again, add remaining urea again, the trimeric cyanamide taken in step one, polyvinyl alcohol, degreasing soybean protein powder, massfraction is the ammoniacal liquor of 26%, sodium laurylsulfonate, complexing agent, formaldehyde reducing agent, softening water and calcium hydroxide, after stirring, be 7.6 ~ 8.3 by the sodium hydroxide solution adjust ph of 32 ~ 40% again when mixed solution being cooled to 35 DEG C, obtain urea-formaldehyde glue.
The beneficial effect of technical scheme of the present invention is adopted to be: urea-formaldehyde glue bonding agent additive of the present invention, reduce the amount of urea-formaldehyde glue tackiness agent Free-formaldehyde, improve the capability and performance of urea-formaldehyde glue, viscosity increases to some extent, and stability and water tolerance are also greatly improved; And urea-formaldehyde glue tackiness agent cost of the present invention is low, preparation is simple, is convenient to promote the use of.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
A kind of urea-formaldehyde glue tackiness agent, the mass parts of described urea-formaldehyde glue tackiness agent consists of: 420 ~ 480 parts, the formaldehyde of 36%, 240 ~ 280 parts, urea, trimeric cyanamide 25 ~ 30 parts, degreasing soybean protein powder 50-80 part, polyvinyl alcohol 0.5 ~ 0.9 part, massfraction is the ammoniacal liquor 2 ~ 6 parts of 26%, sodium laurylsulfonate 0.6 ~ 0.8 part, formaldehyde reducing agent 0.5 ~ 0.7 part, complexing agent 8-15 part, softening water 50-80 part, calcium hydroxide powder 2-8 part.
The mass parts of described formaldehyde reducing agent is composed as follows: trimeric cyanamide 1.5-3.5 part, sodium-chlor 1.75-3.8 part, sodium laurylsulfonate 0.08-0.12 part.
Described complexing agent is made up of Tai-Ace S 150 and zirconium carbonate, and the mass ratio of described Tai-Ace S 150 and zirconium carbonate is 1.2-1.8:1.
the mass parts composition of embodiment 1-5 is in table 1.
in embodiment 1-5, the mass parts composition of formaldehyde reducing agent is in table 2.
Prepare a kind of method of urea-formaldehyde glue tackiness agent, described method is as follows:
(1) 420 ~ 480 parts, the formaldehyde of 36% is taken by ratio of weight and the number of copies, 240 ~ 280 parts, urea, trimeric cyanamide 25 ~ 30 parts, degreasing soybean protein powder 50-80 part, polyvinyl alcohol 0.5 ~ 0.9 part, massfraction is the ammoniacal liquor 2 ~ 6 parts of 26%, sodium laurylsulfonate 0.6 ~ 0.8 part, formaldehyde reducing agent 0.5 ~ 0.7 part, complexing agent 8-15 part, softening water 50-80 part, calcium hydroxide 2-8 part.
(2) formaldehyde of take in step (1) 36% is added in reactor, be warming up to 32 ~ 35 DEG C, sodium hydroxide solution adjust ph with 35 ~ 40% is 8.0, first add half urea, mix, be 6.3 ~ 6.5 by the sodium hydroxide solution adjust ph of 35 ~ 40%, be warming up to 90-95 DEG C, insulation 35 ~ 45min, obtains mixed solution;
(3) be 4.5 ~ 4.7 by the pH value of mixed solution in acetic acid regulating step (2), mixed solution is added drop-wise in the water of 12 ~ 15 DEG C, after reaction terminates, be adjust ph be 6.8 by the sodium hydroxide solution adjust ph of 35 ~ 40% again, add remaining urea again, the trimeric cyanamide taken in step one, polyvinyl alcohol, degreasing soybean protein powder, massfraction is the ammoniacal liquor of 26%, sodium laurylsulfonate, complexing agent, formaldehyde reducing agent, softening water and calcium hydroxide, after stirring, be 7.6 ~ 8.3 by the sodium hydroxide solution adjust ph of 32 ~ 40% again when mixed solution being cooled to 35 DEG C, obtain urea-formaldehyde glue.
Embodiment 3 is preferred forms.
performance test:
Urea-formaldehyde glue tackiness agent obtained in embodiment 1-5 is used in glued board, then measures burst size and the bonding strength of formaldehyde in glued board.
Control group adopts common commercially available urea-formaldehyde glue tackiness agent.
Although above-described embodiment describes in detail technical scheme of the present invention, but technical scheme of the present invention is not limited to above embodiment, when not departing from thought of the present invention and aim, claims limited range of the present invention all will be fallen into any change that technical scheme of the present invention is done.
Claims (7)
1. a urea-formaldehyde glue tackiness agent, is characterized in that, the mass parts of described urea-formaldehyde glue tackiness agent consists of: 420 ~ 480 parts, the formaldehyde of 36%, 240 ~ 280 parts, urea, trimeric cyanamide 25 ~ 30 parts, degreasing soybean protein powder 50-80 part, polyvinyl alcohol 0.5 ~ 0.9 part, massfraction is the ammoniacal liquor 2 ~ 6 parts of 26%, sodium laurylsulfonate 0.6 ~ 0.8 part, formaldehyde reducing agent 0.5 ~ 0.7 part, complexing agent 8-15 part, softening water 50-80 part, calcium hydroxide powder 2-8 part.
2. a kind of urea-formaldehyde glue tackiness agent according to claim 1, it is characterized in that, the mass parts of described formaldehyde reducing agent is composed as follows: trimeric cyanamide 1.5-3.5 part, sodium-chlor 1.75-3.8 part, sodium laurylsulfonate 0.08-0.12 part.
3. a kind of urea-formaldehyde glue tackiness agent according to claim 2, it is characterized in that, the mass parts of described formaldehyde reducing agent is composed as follows: trimeric cyanamide 2.5 parts, 2.5 parts, sodium-chlor, sodium laurylsulfonate 0.1 part.
4. a kind of urea-formaldehyde glue tackiness agent according to claim 1, it is characterized in that, described complexing agent is made up of Tai-Ace S 150 and zirconium carbonate, and the mass ratio of described Tai-Ace S 150 and zirconium carbonate is 1.2-1.8:1.
5. a kind of urea-formaldehyde glue tackiness agent according to claim 4, it is characterized in that, described complexing agent is made up of Tai-Ace S 150 and zirconium carbonate, and the mass ratio of described Tai-Ace S 150 and zirconium carbonate is 1.5:1.
6. a kind of urea-formaldehyde glue tackiness agent according to claim 1, is characterized in that, the mass parts of described urea-formaldehyde glue tackiness agent consists of: 450 parts, the formaldehyde of 36%, 260 parts, urea, trimeric cyanamide 28 parts, 65 parts, degreasing soybean protein powder, polyvinyl alcohol 0.7 part, massfraction is the ammoniacal liquor 4 parts of 26%, sodium laurylsulfonate 0.7 part, formaldehyde reducing agent 0.6 part, complexing agent 12 parts, softening water 65 parts, 4 parts, calcium hydroxide.
7. the method for a kind of urea-formaldehyde glue tackiness agent of preparation according to any one of claim 1-6, it is characterized in that, described method is as follows:
(1) 420 ~ 480 parts, the formaldehyde of 36% is taken by ratio of weight and the number of copies, 240 ~ 280 parts, urea, trimeric cyanamide 25 ~ 30 parts, degreasing soybean protein powder 50-80 part, polyvinyl alcohol 0.5 ~ 0.9 part, massfraction is the ammoniacal liquor 2 ~ 6 parts of 26%, sodium laurylsulfonate 0.6 ~ 0.8 part, formaldehyde reducing agent 0.5 ~ 0.7 part, complexing agent 8-15 part, softening water 50-80 part, calcium hydroxide 2-8 part;
(2) formaldehyde of take in step (1) 36% is added in reactor, be warming up to 32 ~ 35 DEG C, sodium hydroxide solution adjust ph with 35 ~ 40% is 8.0, first add half urea, mix, be 6.3 ~ 6.5 by the sodium hydroxide solution adjust ph of 35 ~ 40%, be warming up to 90-95 DEG C, insulation 35 ~ 45min, obtains mixed solution;
(3) be 4.5 ~ 4.7 by the pH value of mixed solution in acetic acid regulating step (2), mixed solution is added drop-wise in the water of 12 ~ 15 DEG C, after reaction terminates, be adjust ph be 6.8 by the sodium hydroxide solution adjust ph of 35 ~ 40% again, add remaining urea again, the trimeric cyanamide taken in step one, polyvinyl alcohol, degreasing soybean protein powder, massfraction is the ammoniacal liquor of 26%, sodium laurylsulfonate, complexing agent, formaldehyde reducing agent, softening water and calcium hydroxide, after stirring, be 7.6 ~ 8.3 by the sodium hydroxide solution adjust ph of 32 ~ 40% again when mixed solution being cooled to 35 DEG C, obtain urea-formaldehyde glue.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295791A (en) * | 2015-12-07 | 2016-02-03 | 广西南宁德源胶粘剂有限公司 | Urea-formaldehyde resin for artificial board veneer and preparation method of urea-formaldehyde resin |
| CN105348463A (en) * | 2015-12-07 | 2016-02-24 | 广西南宁德源胶粘剂有限公司 | Preparation method for E2-grade building template glue |
| CN106349987A (en) * | 2016-08-31 | 2017-01-25 | 浙江杭摩合成材料股份有限公司 | Special modified phenolic resin adhesive for bamboo floor and preparation method of special modified phenolic resin adhesive |
| CN109762495A (en) * | 2017-11-09 | 2019-05-17 | 丹阳市博元安全生产服务有限公司 | A kind of ureaformaldehyde viscose binder and preparation method thereof |
| CN110509387A (en) * | 2019-08-26 | 2019-11-29 | 泰安市森鑫工贸有限公司 | Artificial lumps of wood and preparation method thereof |
| CN113249069A (en) * | 2021-03-25 | 2021-08-13 | 广西贺州恒达板业股份有限公司 | Anti-corrosion adhesive for finger-jointed board wood and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205348A (en) * | 2007-12-11 | 2008-06-25 | 北京林业大学 | Urea-formaldehyde resin additive, urea-formaldehyde resin containing the same and preparation method thereof |
| CN103087661A (en) * | 2012-12-21 | 2013-05-08 | 淮南市金海达树脂有限责任公司 | Adhesive for bamboo and wood products and preparation method thereof |
| WO2014008947A1 (en) * | 2012-07-13 | 2014-01-16 | Akzo Nobel Coatings International B.V. | Adhesive system |
-
2015
- 2015-02-09 CN CN201510067198.XA patent/CN104592920A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205348A (en) * | 2007-12-11 | 2008-06-25 | 北京林业大学 | Urea-formaldehyde resin additive, urea-formaldehyde resin containing the same and preparation method thereof |
| WO2014008947A1 (en) * | 2012-07-13 | 2014-01-16 | Akzo Nobel Coatings International B.V. | Adhesive system |
| CN103087661A (en) * | 2012-12-21 | 2013-05-08 | 淮南市金海达树脂有限责任公司 | Adhesive for bamboo and wood products and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295791A (en) * | 2015-12-07 | 2016-02-03 | 广西南宁德源胶粘剂有限公司 | Urea-formaldehyde resin for artificial board veneer and preparation method of urea-formaldehyde resin |
| CN105348463A (en) * | 2015-12-07 | 2016-02-24 | 广西南宁德源胶粘剂有限公司 | Preparation method for E2-grade building template glue |
| CN105295791B (en) * | 2015-12-07 | 2017-12-26 | 广西南宁德源胶粘剂有限公司 | A kind of Lauxite of wood-based plate veneer and preparation method thereof |
| CN106349987A (en) * | 2016-08-31 | 2017-01-25 | 浙江杭摩合成材料股份有限公司 | Special modified phenolic resin adhesive for bamboo floor and preparation method of special modified phenolic resin adhesive |
| CN109762495A (en) * | 2017-11-09 | 2019-05-17 | 丹阳市博元安全生产服务有限公司 | A kind of ureaformaldehyde viscose binder and preparation method thereof |
| CN110509387A (en) * | 2019-08-26 | 2019-11-29 | 泰安市森鑫工贸有限公司 | Artificial lumps of wood and preparation method thereof |
| CN113249069A (en) * | 2021-03-25 | 2021-08-13 | 广西贺州恒达板业股份有限公司 | Anti-corrosion adhesive for finger-jointed board wood and preparation method thereof |
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