CN1884414A - Aldehyde-free cement for wood-based panel - Google Patents
Aldehyde-free cement for wood-based panel Download PDFInfo
- Publication number
- CN1884414A CN1884414A CN 200510050471 CN200510050471A CN1884414A CN 1884414 A CN1884414 A CN 1884414A CN 200510050471 CN200510050471 CN 200510050471 CN 200510050471 A CN200510050471 A CN 200510050471A CN 1884414 A CN1884414 A CN 1884414A
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- Prior art keywords
- wood
- aldehyde
- agent
- bpa
- polyvinyl alcohol
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- Chemical And Physical Treatments For Wood And The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses adhesive agent without aldehyde, comprising polyvinyl alcohol, YH- complex builder, complex builder, and BPA cross linking agent. The method comprises the following steps: feeding, adjusting pH, heating, cooling, discharging, and getting product. The invention uses polyisocyanates as curing agent. When use it, mix the host crystal and curing agent, and stir them. The invention has the advantages of non irritant odor, high strength and non formaldehyde. So the invention modifies the environment.
Description
Technical field
The present invention relates to a kind of resin adhesive, the tackiness agent that the wood-based plate that relates to a kind of formaldehyde that do not contain hazardous substance specifically uses when making.
Background technology
Along with The development in society and economy, living standards of the people improve day by day, and environmental consciousness is also more and more stronger.Environmental quality is all more and more paid attention in countries in the world, China is no exception, at formaldehyde having a strong impact on to environment and HUMAN HEALTH, strict regulation has been made to the burst size of methanal among the artifical plate product by country, issued " formaldehyde discharges and limits the quantity of in indoor decorating material wood-based plate and the goods thereof " GB18580-2001 pressure standard on January 1st, 2002, stopped selling the product that does not meet national standard on the market from July 1st, 2002.The appearance of this standard and compulsory execution, the product that high formaldehyde is discharged will progressively be withdrawn from the market.And at present the formaldehyde among the artifical plate product discharges mainly to come from and contains aldehyde adhesive, and this is owing to used traditional urea-formaldehyde resin adhesive in the wood working industry.This kind tackiness agent has higher advantages such as adhesive strength, thereby is widely used in the wood working industry because it is cheap, easy to use.Yet using urea-formaldehyde resin adhesive to make in the process of wood-based plate, the concentration of formaldehyde that discharges is higher, stimulates people's eyes and respiratory system, and the harm operative employee's is healthy.And the wood-based plate or the woodwork that use this kind tackiness agent to make just become the product that high formaldehyde discharges, make the release scope of formaldehyde be diffused into the various places of people's work, life, study along with the widespread use of wood-based plate or other woodworks, the hazardness of formaldehyde and influence surface are further enlarged.
Summary of the invention
The object of the present invention is to provide a kind of particularly wood-based plate environmental-protection type adhesive that does not contain formaldehyde of wood working industry that is used for, make operator's Working environment and use artifical plate product's broad masses' work, life, academic environment to be further improved.
The present invention is achieved in that it is made up of polyvinyl alcohol, YH-complexing agent, Sumstar 190, BPA linking agent, through reinforced, transfer pH value, intensification, insulation reaction, lower the temperature, go out material process and be prepared from host, be solidifying agent with the polyisocyanates.During concrete the use, host is mixed according to a certain percentage with the solidifying agent isocyanic ester, both stir can.The product that uses the present invention to constitute, Wood-based Panel Production does not have irritating smell in the workshop, and test through national chemical building material quality supervision and test center with its bonding timber products such as wood-based plate, formaldehydeless release, and the bonding strength aspect also increases than common urea-formaldehyde resin.Therefore proposition of the present invention and applying, to make Wood-based Panel Production enterprise take leave of irritating smell, and for building the green health household, creating the healthy living environment, it is healthy to reduce formaldehyde harm people, and improving people's quality of life all has crucial meaning.
Description of drawings
Fig. 1, be production process schema of the present invention.
Embodiment
With reference to accompanying drawing 1, get polyvinyl alcohol 5-15%, YH-complexing agent 8-15%, Sumstar 190 15-20%, BPA linking agent 8-20% and water 45-60% by weight.The water, the polyvinyl alcohol that measure are added reactor, rising temperature for dissolving, insulation is after 1 hour in the time of 85-80 ℃, reduce to 65 ℃, add Sumstar 190, YH-1 complexing agent, transfer pH value to 5.0-6.0, temperature rises to 70-75 ℃ of insulation reaction, is cooled to 50 ℃ to reaction end in about 0.5 hour, add the BPA linking agent, insulation reaction 40 minutes to emulsification fully, is transferred pH value 6.0-7.0, temperature is reduced to 40 ℃ of dischargings, promptly gets wood-based plate aldehyde-free cement of the present invention.Outward appearance of the present invention: faint yellow inclusion-free uniform liquid.PH value is 7.0, and viscosity is 660cp, and free formaldehyde does not have, solid content 36%.
During use, host and solidifying agent isocyanic ester are mixed according to a certain percentage, promptly can be used for producing.The wood-based plate aldehyde-free cement that the present invention proposes is applicable to normal plywood, decoration veneer, and the heating of core-board, multiplying plywood and other woodwork, pressurization are bonding.
Claims (2)
1, a kind of aldehyde-free cement for wood-based panel, it is characterized in that it is made up of polyvinyl alcohol, YH-complexing agent, starch, BPA linking agent, through reinforced, transfer pH value, intensification, insulation reaction, lower the temperature, go out material process and be prepared from host, be solidifying agent with the polyisocyanates.
2, a kind of aldehyde-free cement for wood-based panel according to claim 1, it is characterized in that said host preparation section is to get polyvinyl alcohol 5-15% by weight, YH-complexing agent 8-15%, Sumstar 190 15-20%, BPA linking agent 8-20% and water 45-60%, with the water that measures, polyvinyl alcohol adds reactor, rising temperature for dissolving, insulation is after 1 hour in the time of 85-80 ℃, reduce to 65 ℃, add Sumstar 190, the YH-1 complexing agent, transfer pH value to 5.0-6.0, temperature rises to 70-75 ℃ of insulation reaction, be cooled to 50 ℃ to reaction end in about 0.5 hour, and added the BPA linking agent, insulation reaction 40 minutes, to fully emulsification, transfer pH value 6.0-7.0, temperature is reduced to 40 ℃ of dischargings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510050471 CN1884414A (en) | 2005-06-25 | 2005-06-25 | Aldehyde-free cement for wood-based panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510050471 CN1884414A (en) | 2005-06-25 | 2005-06-25 | Aldehyde-free cement for wood-based panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1884414A true CN1884414A (en) | 2006-12-27 |
Family
ID=37582721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510050471 Pending CN1884414A (en) | 2005-06-25 | 2005-06-25 | Aldehyde-free cement for wood-based panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1884414A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591520B (en) * | 2009-05-21 | 2012-05-23 | 沈阳建筑大学 | Aldehyde-free water-based adhesive for straw board |
| CN103436202A (en) * | 2013-09-06 | 2013-12-11 | 张晓东 | Formaldehyde-free veneering glue applicable to gluing of core veneer and panel of core board and manufacturing method thereof |
| CN106634688A (en) * | 2017-01-03 | 2017-05-10 | 东北林业大学 | Thermosetting oxidation-modified cassava-starch adhesive and preparation method thereof |
| CN109096967A (en) * | 2018-06-28 | 2018-12-28 | 广西丰林木业集团股份有限公司 | A kind of preparation method of composite modified gluing agent and the manufacturing method of anti-wet fiber plate |
-
2005
- 2005-06-25 CN CN 200510050471 patent/CN1884414A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591520B (en) * | 2009-05-21 | 2012-05-23 | 沈阳建筑大学 | Aldehyde-free water-based adhesive for straw board |
| CN103436202A (en) * | 2013-09-06 | 2013-12-11 | 张晓东 | Formaldehyde-free veneering glue applicable to gluing of core veneer and panel of core board and manufacturing method thereof |
| CN106634688A (en) * | 2017-01-03 | 2017-05-10 | 东北林业大学 | Thermosetting oxidation-modified cassava-starch adhesive and preparation method thereof |
| CN109096967A (en) * | 2018-06-28 | 2018-12-28 | 广西丰林木业集团股份有限公司 | A kind of preparation method of composite modified gluing agent and the manufacturing method of anti-wet fiber plate |
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