CN104559848A - Production method of pasty modified urea-formaldehyde resin adhesive - Google Patents
Production method of pasty modified urea-formaldehyde resin adhesive Download PDFInfo
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- CN104559848A CN104559848A CN201310489548.2A CN201310489548A CN104559848A CN 104559848 A CN104559848 A CN 104559848A CN 201310489548 A CN201310489548 A CN 201310489548A CN 104559848 A CN104559848 A CN 104559848A
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- urea
- formaldehyde resin
- formaldehyde
- resin adhesive
- adhesive
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Abstract
The invention provides a production method of a pasty modified urea-formaldehyde resin adhesive for artificial boards such as plywood, a blockboard, a concrete moldboard, a bamboo weaving board and a fire-proof board. The production method comprises steps as follows: a urea-formaldehyde resin adhesive and a polyvinyl formal adhesive are blended, or formaldehyde, urea and polyvinyl alcohol can be subjected to ternary polymerization, additives such as water and oxidized starch or flour are added, and the components are subjected to gelatinization to prepare the pasty and semi-solid modified urea-formaldehyde resin adhesive. The artificial board prepared from the adhesive has high strength, water resistance, aging resistance, low cost and low adhesive consumption, and the product quality can meet GB/T9846.3-2004 standard.
Description
technical field
The present invention relates to the production method of wood-based plate (glued board, core-board, cement formwork, bamboo board, PLASTIC LAMINATED) paste modified urea-formaldehyde resin glue.
This glue by urea-formaldehyde resin adhesive and polyvinylformal glue blended, also can formaldehyde, urea, polyvinyl alcohol terpolymer, then add the filler such as Sumstar 190, flour.Make it be thickened to paste (semisolid), be paste modified urea-formaldehyde resin glue.
Background technology
Urea-formaldehyde resin adhesive, bonding strength is high, and hot water resistance is medium, colourless, and quick solidifying is with low cost, and raw material is easy to get, therefore is widely used in wooden boards processing industry.But also have weak point, loss of properties on aging, sheet material release formaldehyde contaminate environment, brings harm to health of people, so the scope of application is limited to.
Summary of the invention
For the deficiency in urea-formaldehyde resin adhesive performance, maximize favourable factors and minimize unfavourable ones, improve as follows.
Urea-formaldehyde resin adhesive, modified polyvinyl formal glue are blended, and glue ageing resistance can promote; Its formaldehyde of urea-formaldehyde resin adhesive and urea mole ratio < 1%, cohesive strength significantly declines, and blended rear intensity is promoted.
Wood-based Panel Production, adds 20-30% flour and increases viscosity in sizing agent, thus reduces sheet material consumption glue amount, reduces wood-based plate cost, is subject to the great attention of domestic and international manufacturer always.
Just right interpolation Sumstar 190, reaches the most desirable viscosity (paste, semisolid), can infiltrate wood internal by anti-sizing agent, can reduce board materials production consumption glue amount.Reach thickening effectiveness with a small amount of Sumstar 190, take gelatinization thickening process.Urea-formaldehyde resin adhesive filler gelatinization thickening, can be used for wood-based plate (glued board, core-board, cement formwork, bamboo board, PLASTIC LAMINATED), still belongs to pioneering both at home and abroad.
Paste modified urea-formaldehyde resin glue can reduce costs about 20%; Consumption glue amount can be reduced in sheet fabrication; Improve ageing-resistant performance.Sheet material can reach GB/T9846.3-2004 standard.
Embodiment 1
Solid content 12% formaldehyde polyvinyl acetal 200kg, Sumstar 190 78kg, water 322kg stir intensification, then add solid content 50% urea-formaldehyde resin 100kg, are warmed up to 65-75 DEG C, i.e. E
0glue.
Embodiment 2
Solid content 8% polyvinyl formal 100kg, solid content 50% urea-formaldehyde resin 100kg, after being uniformly mixed, then add Sumstar 190 33kg, water 67kg, stirs and be warmed up to 65-75 DEG C, blowing and E
1glue.
Claims (7)
1. for wood-based plate (glued board, thin plank, cement formwork, bamboo board, PLASTIC LAMINATED) paste modified urea-formaldehyde resin glue production method, this glue by urea-formaldehyde resin adhesive and modified polyvinyl formal blended, or formaldehyde, urea, polyvinyl alcohol terpolymer, and add Sumstar 190 or flour, be thickened to paste (semisolid).
2. for bonding wood-based plate (glued board, thin plank, cement formwork, bamboo board, PLASTIC LAMINATED) paste urea-formaldehyde resin or paste modified urea-formaldehyde resin.
3. according to claims 1, urea-formaldehyde resin adhesive free formaldehyde content is less than 0.1%, solid content 37 ~ 60%.
4., according to claims 1, its free formaldehyde content of formaldehyde polyvinyl acetal is less than 0.1%, acetal solid content 2 ~ 15%.
5. according to claims 1, urea-formaldehyde resin adhesive is 50:(50-2 with the ratio of formal glue solid content).
6., according to claims 1, filler addition is 8 ~ 15% of Blend rubber.
7., according to claims 1, filler and blended adhesive paste temperature are 65 ~ 75 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489548.2A CN104559848A (en) | 2013-10-11 | 2013-10-11 | Production method of pasty modified urea-formaldehyde resin adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489548.2A CN104559848A (en) | 2013-10-11 | 2013-10-11 | Production method of pasty modified urea-formaldehyde resin adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104559848A true CN104559848A (en) | 2015-04-29 |
Family
ID=53076946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310489548.2A Pending CN104559848A (en) | 2013-10-11 | 2013-10-11 | Production method of pasty modified urea-formaldehyde resin adhesive |
Country Status (1)
| Country | Link |
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| CN (1) | CN104559848A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000841A (en) * | 2015-08-01 | 2015-10-28 | 哈尔滨共阳科技咨询有限公司 | Building material and use method thereof |
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|---|---|---|---|---|
| CN101191042A (en) * | 2006-11-20 | 2008-06-04 | 兰州大学 | Method for preparing urea-formaldehyde resin adhesive |
| CN101575487A (en) * | 2009-05-05 | 2009-11-11 | 浙江林学院 | Alkali lignin oxidized starch modified urea-formaldehyde glue and production method thereof |
| CN102295903A (en) * | 2011-06-24 | 2011-12-28 | 浙江农林大学 | Production method for rapidly-precured white latex |
| CN102391804A (en) * | 2011-09-21 | 2012-03-28 | 福建省南安市森源木业有限公司 | Adhesive used for veneering on wood by hot pressing |
| CN103172971A (en) * | 2013-03-27 | 2013-06-26 | 湖南福湘木业有限责任公司 | Urea formaldehyde resin for prepressing and synthesis technology thereof |
| CN103173170A (en) * | 2011-12-20 | 2013-06-26 | 永港伟方（北京）科技股份有限公司 | Adhesive for artificial board, and preparation method and application thereof |
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2013
- 2013-10-11 CN CN201310489548.2A patent/CN104559848A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191042A (en) * | 2006-11-20 | 2008-06-04 | 兰州大学 | Method for preparing urea-formaldehyde resin adhesive |
| CN101575487A (en) * | 2009-05-05 | 2009-11-11 | 浙江林学院 | Alkali lignin oxidized starch modified urea-formaldehyde glue and production method thereof |
| CN102295903A (en) * | 2011-06-24 | 2011-12-28 | 浙江农林大学 | Production method for rapidly-precured white latex |
| CN102391804A (en) * | 2011-09-21 | 2012-03-28 | 福建省南安市森源木业有限公司 | Adhesive used for veneering on wood by hot pressing |
| CN103173170A (en) * | 2011-12-20 | 2013-06-26 | 永港伟方（北京）科技股份有限公司 | Adhesive for artificial board, and preparation method and application thereof |
| CN103172971A (en) * | 2013-03-27 | 2013-06-26 | 湖南福湘木业有限责任公司 | Urea formaldehyde resin for prepressing and synthesis technology thereof |
Non-Patent Citations (2)
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|---|
| 李和平: "《木材胶黏剂》", 31 January 2009, 化学工业出版社 * |
| 来胜利: "《常用精细化工产品研制与生产》", 31 October 2006, 陕西科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000841A (en) * | 2015-08-01 | 2015-10-28 | 哈尔滨共阳科技咨询有限公司 | Building material and use method thereof |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yan Bozhou Inventor before: Yan Junjie |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YAN JUNJIE TO: YAN BOZHOU |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |