CN101497777A - Preparation of water resistance soybean based timber adhesive - Google Patents
Preparation of water resistance soybean based timber adhesive Download PDFInfo
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- CN101497777A CN101497777A CNA2008102387865A CN200810238786A CN101497777A CN 101497777 A CN101497777 A CN 101497777A CN A2008102387865 A CNA2008102387865 A CN A2008102387865A CN 200810238786 A CN200810238786 A CN 200810238786A CN 101497777 A CN101497777 A CN 101497777A
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Abstract
The invention provides a preparation method of water resisting soybean base wood adhesive, which comprises the following steps: mixing 8-12g of sodium hydroxide and hot water with 200-300g of water and 2-3g of glycol and heating the mixture to 70 DEG C, slowly adding 100-200g of degreased soybean flour and heating the mixture added with the degreased soybean flour to 88-92 DEG C for reacting 1h; slowly adding 40-60g of formaldehyde (37-40 percent) for reacting 50-60m at the temperature of 88-92 DEG C; adding 40-50g of phenol and adding 2-4.5g of sodium hydroxide for reacting 15 min at the temperature of 75 DEG C; adding 70-90g of formaldehyde and adding 1-3g of sodium hydroxide for reacting 15 min at the temperature of 75 DEG C; adding 1-3g of sodium hydroxide for reacting 90 min at the temperature of 75 DEG C, and cooling the mixture to 30 DEG C below. The preparation method of the novel wood adhesive has low cost and good water resistance; the novel wood adhesive can be mixed with resins of urea-formaldehyde, metlbond, and the like for use, and the adhering property of the novel wood adhesive is similar to the metlbond.
Description
Technical field:
The present invention relates to a kind of preparation method of wood adhesive, especially a kind of preparation method of water resisting property soybean-based adhesive.
Background technology:
In recent years, environmental sound and reproducible plant albumin glue adhesive are subject to people's attention day by day, and mainly concentrate on the soybean protein aspect.It is wide that soybean protein has raw material sources, characteristics such as strong, the cheap and reactive behavior height of recyclability, and easy handling, can be used for hot pressing and cold pressing, under the relative humidity of 20%-35%, be difficult for coming unstuck, but be used for soy proteinaceous tackiness agent and still have some limitation, the relative relatively poor and antimicrobial degradation capability with water resisting property of its bonding degree hangs down two big bottleneck problems, hinder the popularization of soya-based wood adhesive, improve the water tolerance and the bonding strength of bean gum, satisfy the timber industry demands of applications, become key of the present invention.
Summary of the invention:
The object of the present invention is to provide a kind of adhesive property preparation method of soya-based wood adhesive preferably.
The object of the present invention is achieved like this:
(1) sodium hydroxide with the 8-12 gram mixes with 200-300 gram water, 2-3 gram ethylene glycol with hot water, is heated to 70 ℃, slowly adds 100-200 gram defatted soybean meal powder, is heated to 88-92 ℃, reacts 1 hour;
(2) slowly add formaldehyde (37%-40%) 40-60 grams, 88-92 ℃ were reacted 50-60 minutes down;
(3) add 40-50 gram phenol, add 2-4.5 gram sodium hydroxide again, 75 ℃ were reacted 15 minutes down;
(4) add 70-90 gram formaldehyde, add 1-3 gram sodium hydroxide again, 75 ℃ were reacted 15 minutes down;
(5) add 1-3 gram sodium hydroxide, 75 ℃ were reacted 90 minutes down, are cooled to below 30 ℃ again.
Compared with prior art, advantage of the present invention has: this method has changed traditional soya-based timber sizing agent preparation method, and bean powder is carried out alkaline purification, and carries out polyreaction with formaldehyde and phenol, be that a kind of cost is low, the preparation method of the novel timber sizing agent that water resisting property is good.It can use with mixed with resin such as urea aldehyde, phenolic aldehyde, and adhesive property and phenolic aldehyde are close.
Embodiment:
Be described in detail embodiments of the invention below.
Behind solution to 70 that heating 12.0 gram sodium hydroxide and 285 gram water and 2.25 gram ethylene glycol are formed ℃, under stirring fast, add 120 gram soyflours in 20 minutes, then temperature is raised to 90 ℃ and kept 1 hour.Under 90 ℃, be added dropwise to 37% formaldehyde 49 grams to the solution of quick stirring in 5 minutes, under 90 ℃, kept 55 minutes again.Remove the heating source of reactor, in 10 minutes, add 44 gram phenol, add cold phenol and help bath temperature to cool 75 ℃.In case, add 3.75 gram sodium hydroxide to 75 ℃.After 15 minutes, under keeping 75 ℃, be added dropwise to 37% formaldehyde, 80.4 grams in 15 minutes.Add the formaldehyde that is over, add 1.9 gram sodium hydroxide.After 15 minutes, add 1.9 gram sodium hydroxide again.Whole solution continues 75 ℃ of following stirring reactions 90 minutes again.Cool 30 ℃ then, scalping is filtered.
Its main technique flow process is as follows:
The skimmed soy beans bean cake powder
This property of alkali
With formaldehyde reaction
With phenol reactant
Adjust pH
With formaldehyde reaction
Adjust pH
Copolyreaction
Cooling.
Claims (1)
1, a kind of preparation method of water resistance soybean based timber adhesive, it is characterized in that: the sodium hydroxide of 8-12 gram is mixed with 200-300 gram water, 2-3 gram ethylene glycol with hot water, be heated to 70 ℃, slowly add 100-200 gram defatted soybean meal powder, be heated to 88-92 ℃, reacted 1 hour; Slowly add formaldehyde (37%-40%) 40-60 grams, 88-92 ℃ were reacted 50-60 minutes down; Add 40-50 gram phenol, add 2-4.5 gram sodium hydroxide again, 75 ℃ were reacted 15 minutes down; Add 70-90 gram formaldehyde, add 1-3 gram sodium hydroxide again, 75 ℃ were reacted 15 minutes down; Add 1-3 gram sodium hydroxide, 75 ℃ were reacted 90 minutes down, are cooled to below 30 ℃ again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102387865A CN101497777A (en) | 2008-12-29 | 2008-12-29 | Preparation of water resistance soybean based timber adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102387865A CN101497777A (en) | 2008-12-29 | 2008-12-29 | Preparation of water resistance soybean based timber adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101497777A true CN101497777A (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102387865A Pending CN101497777A (en) | 2008-12-29 | 2008-12-29 | Preparation of water resistance soybean based timber adhesive |
Country Status (1)
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| CN (1) | CN101497777A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739801A (en) * | 2014-01-17 | 2014-04-23 | 深圳市康尔竹木业有限公司 | Raw materials of resin adhesive for sympodial bamboo integrated profile and preparation method of resin adhesive |
| CN104073218A (en) * | 2014-06-26 | 2014-10-01 | 安徽神舟飞船胶业有限公司 | Formula and preparation process of faint-scent and environment-friendly vegetable adhesive |
| CN108189170A (en) * | 2017-12-06 | 2018-06-22 | 常州富思通管道有限公司 | A kind of preparation method of bamboo matter high density fiberboard |
| CN108247804A (en) * | 2017-12-29 | 2018-07-06 | 唐林元 | A kind of preparation method of retardant foam composite board |
| CN108372570A (en) * | 2018-03-28 | 2018-08-07 | 许水仙 | A kind of preparation method of the moisture-proof wheat straw board of fire resisting |
-
2008
- 2008-12-29 CN CNA2008102387865A patent/CN101497777A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739801A (en) * | 2014-01-17 | 2014-04-23 | 深圳市康尔竹木业有限公司 | Raw materials of resin adhesive for sympodial bamboo integrated profile and preparation method of resin adhesive |
| CN103739801B (en) * | 2014-01-17 | 2015-06-17 | 深圳市康尔竹木业有限公司 | Raw materials of resin adhesive for sympodial bamboo integrated profile and preparation method of resin adhesive |
| CN104073218A (en) * | 2014-06-26 | 2014-10-01 | 安徽神舟飞船胶业有限公司 | Formula and preparation process of faint-scent and environment-friendly vegetable adhesive |
| CN108189170A (en) * | 2017-12-06 | 2018-06-22 | 常州富思通管道有限公司 | A kind of preparation method of bamboo matter high density fiberboard |
| CN108189170B (en) * | 2017-12-06 | 2020-11-17 | 义乌市君胜科技有限公司 | Preparation method of bamboo high-density fiberboard |
| CN108247804A (en) * | 2017-12-29 | 2018-07-06 | 唐林元 | A kind of preparation method of retardant foam composite board |
| CN108247804B (en) * | 2017-12-29 | 2020-05-29 | 唐山市丰润区展硕保温建材有限公司 | Preparation method of flame-retardant foam composite board |
| CN108372570A (en) * | 2018-03-28 | 2018-08-07 | 许水仙 | A kind of preparation method of the moisture-proof wheat straw board of fire resisting |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090805 |