CN1793263A - Non-formol environment protection adhesive adapting for artificial wood board and prepartion process thereof - Google Patents
Non-formol environment protection adhesive adapting for artificial wood board and prepartion process thereof Download PDFInfo
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- CN1793263A CN1793263A CN 200510121177 CN200510121177A CN1793263A CN 1793263 A CN1793263 A CN 1793263A CN 200510121177 CN200510121177 CN 200510121177 CN 200510121177 A CN200510121177 A CN 200510121177A CN 1793263 A CN1793263 A CN 1793263A
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- urea
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- sodium hydroxide
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Abstract
The invention relates to non formaldehyde environmental protection adhesive and its manufacturing technology used in artificial timber board. At present peoples use a lot of adhesive which contains poisonous and harmful substance, such as formaldehyde and polychlorinated biphenyls, and will pollute environment and is harmful to health in artificial timber board production. It is made up of sodium silicate, oxalic acid, sulfuric acid, water, borax, urea, starch, and sodium hydroxide. It includes the following steps: adding oxalic acid into sodium silicate; adding sulfuric acid into water, then adding borax to stirring evenly; adding the solution formed by the second step into the first step; adding urea into the solution formed by the third step; heating the solution formed by the forth step, adding the starch, stirring after closing power supply; cooling the solution formed by the fifth step, adding sodium hydroxide, stirring to natural temperature. The formed product has the advantages of no poisonous and harmful substance, strong adhesive force, environmental protection, simple production, and low cost; and it is good for popularization.
Description
Technical field
The present invention relates to the artificial timber board manufacturing, particularly relate to a kind of artificial timber board environment protective adhesives free of formaldehyde and preparation technology thereof of applying to.
Background technology
At present, people use tackiness agent in a large number in the production of artificial timber board, can't be solved and contain multiple hazardous and noxious substances such as formaldehyde, polychlorobiphenyl in tackiness agent, and contaminate environment, long-term effect the healthy of the mankind.
Summary of the invention
The object of the present invention is to provide a kind of do not contain toxic substances such as formaldehyde, rapidly and efficiently, environmental protection and energy saving, apply to artificial timber board tackiness agent and preparation technology thereof.
The present invention is made up of water glass, oxalic acid, sulfuric acid, water, borax, urea, starch and sodium hydroxide, and its various composition weight ratios are:
Water glass: oxalic acid: sulfuric acid: water: borax: urea: starch: sodium hydroxide=1000-1100: 3-3.5: 2.0-3.5: 300-400: 20-35: 15-30: 120-150: 50-65.
Its preparation technology is:
1., oxalic acid is added in the water glass and to stir 30 minutes;
2., with concentration be 98 the degree sulfuric acid add stir in the entry after, add borax again, continue to be stirred to molten entirely;
3., the 2. resulting solution of step is poured in the step solution 1., continued 30 minutes;
4., pour urea into step 3. in the solution of gained, continue to stir 30 minutes;
5., when 4. the solution of gained slowly is warming up to 40 ℃ with step, add starch, and when continuing slowly to be warming up to 70 ℃, close thermal source, continue stirring;
6., step is when 5. the solution of gained is cooled to 40 ℃, adds sodium hydroxide, continue to be stirred to temperature and reduce to normal temperature and get final product.
The invention has the advantages that hazardous and noxious substances such as not containing formaldehyde, polychlorobiphenyl, bounding force is strong, clean environment firendly, produces simply, easy to use, with low cost, has very high economic benefit and social benefit, and exploitation utilization prospect is boundless, is beneficial to popularization.
Embodiment
With most preferred embodiment the present invention is described in further details below:
The present invention is made up of water glass, oxalic acid, sulfuric acid, water, borax, urea, starch and sodium hydroxide, and its various composition weight ratios are:
Water glass: oxalic acid: sulfuric acid: water: borax: urea: starch: sodium hydroxide=1000-1100: 3-3.5: 2.0-3.5: 300-400: 20-35: 15-30: 120-150: 50-65.
Its preparation technology is:
1. oxalic acid 3g is added among the water glass 1000g and stirred 30 minutes;
2. be after stirring in the 98 sulfuric acid 2.5g adding 300g water of spending, to add borax 25g again with concentration, continue to be stirred to molten entirely;
3. the 2. resulting solution of step is poured in the step solution 1., continued 30 minutes;
4. urea 30g is poured into step 3. in the solution of gained, continue to stir 30 minutes;
When 5. 4. the solution of gained slowly is warming up to 40 ℃ with step, add starch 120g, and when continuing slowly to be warming up to 70 ℃, close thermal source, continue stirring;
6. step adds sodium hydroxide 65g when 5. the solution of gained is cooled to 40 ℃, continues to be stirred to temperature and reduces to normal temperature and get final product.
Claims (2)
1, a kind of artificial timber board environment protective adhesives free of formaldehyde that applies to, it is characterized in that it is made up of water glass, oxalic acid, sulfuric acid, water, borax, urea, starch and sodium hydroxide, its various composition weight ratios are: water glass: oxalic acid: sulfuric acid: water: borax: urea: starch: sodium hydroxide=1000-1100: 3-3.5: 2.0-3.5: 300-400: 20-35: 15-30: 120-150: 50-65.
2, a kind of preparation technology who applies to the artificial timber board environment protective adhesives free of formaldehyde is characterized in that it comprises following steps:
1. oxalic acid is added in the water glass and stirred 30 minutes;
2. with concentration be 98 the degree sulfuric acid add stir in the entry after, add borax again, continue to be stirred to molten entirely;
3. the 2. resulting solution of step is poured in the step solution 1., continued 30 minutes;
4. urea is poured into step 3. in the solution of gained, continued to stir 30 minutes;
When 5. 4. the solution of gained slowly is warming up to 40 ℃ with step, add starch, and when continuing slowly to be warming up to 70 ℃, close thermal source, continue stirring;
6. step adds sodium hydroxide when 5. the solution of gained is cooled to 40 ℃, continues to be stirred to temperature and reduces to normal temperature and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510121177 CN1793263A (en) | 2005-12-29 | 2005-12-29 | Non-formol environment protection adhesive adapting for artificial wood board and prepartion process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510121177 CN1793263A (en) | 2005-12-29 | 2005-12-29 | Non-formol environment protection adhesive adapting for artificial wood board and prepartion process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1793263A true CN1793263A (en) | 2006-06-28 |
Family
ID=36804915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510121177 Pending CN1793263A (en) | 2005-12-29 | 2005-12-29 | Non-formol environment protection adhesive adapting for artificial wood board and prepartion process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1793263A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796141B (en) * | 2007-08-10 | 2013-01-23 | 克罗诺泰克股份公司 | Method for reducing the emission of aldehydes and volatile organic compounds of wood material |
| CN103897611A (en) * | 2013-11-01 | 2014-07-02 | 东南大学 | Preparation raw materials and method of aldehyde-free environmentally-friendly adhesive for artificial boards |
| CN104804695A (en) * | 2015-04-28 | 2015-07-29 | 广西德骏门窗幕墙有限公司 | Building adhesive |
-
2005
- 2005-12-29 CN CN 200510121177 patent/CN1793263A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796141B (en) * | 2007-08-10 | 2013-01-23 | 克罗诺泰克股份公司 | Method for reducing the emission of aldehydes and volatile organic compounds of wood material |
| CN103897611A (en) * | 2013-11-01 | 2014-07-02 | 东南大学 | Preparation raw materials and method of aldehyde-free environmentally-friendly adhesive for artificial boards |
| CN104804695A (en) * | 2015-04-28 | 2015-07-29 | 广西德骏门窗幕墙有限公司 | Building adhesive |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |