CN1786099A - Adhesive for preparing artificial board by using bark and its manufacturing method - Google Patents
Adhesive for preparing artificial board by using bark and its manufacturing method Download PDFInfo
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- CN1786099A CN1786099A CN 200510010460 CN200510010460A CN1786099A CN 1786099 A CN1786099 A CN 1786099A CN 200510010460 CN200510010460 CN 200510010460 CN 200510010460 A CN200510010460 A CN 200510010460A CN 1786099 A CN1786099 A CN 1786099A
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Abstract
The present invention relates to a bonding adhesive for artificial plate and its preparation method by using tree bark as raw material. Said bonding adhesive is formed from liquefied product A and solution B, in which the liquefied product A is composed of (by weight portion) 90-100 portions of phenol, 35-75 portions of bark powder and 1-15 portions of catalyst, and the solution B is composed of sodium hydroxide, formaldehyde and water, according to weight ratio the contents of sodium hydroxide, formaldehyde and water respectively are 0.26-0.73, 0.8-1.65 and 0.6-2 of liquefied product A weight. Its preparation method includes the following steps: placing phenol, bark powder, sodium hydroxide solution, formaldehyde solution and water into a reaction still, stirring them and heating so as to obtain the invented bonding adhesive for artificial plate.
Description
Technical field
The present invention relates to sizing agent and manufacture method thereof.
Background technology
The kind of sizing agent is a lot, adopts industrial chemicals more, and industrial chemicals price height.Bark has the rich in natural resources reserves as natural macromolecular material.According to estimates, the volume content of bark is 15～20% of a timber, and weight is 10～15% of timber.Yet, as the industrial wood waste of forest product industry, the constituent complexity of bark, its physics-chem characteristic is because kind difference, the not equal reason difference of growth district and variability are very big, so the bark resource is not fully effectively utilized in the world as yet.Be rich in the bark of tannin except minority, as the joyous bark of alloy, bark of dahurian larch etc., be used to make outside tannin glue and the pharmacy by tannin composition or other medicinal ingredients that extracts wherein, perhaps a small amount of bark is developed outside the purposes such as being used to prepare feed, soil modifier, gac, penjing art product, all abandoned or the burnings and be not fully utilized of most barks.At present, be in order to the preparation sizing agent by extracts such as tannin contained in the extracting bark for utilizing bark to prepare sizing agent both at home and abroad.Aforesaid method exists the problem that the main component of most of Mierocrystalline cellulose, lignin and the hemicellulose etc. of bark can not be utilized effectively.
Summary of the invention
The present invention is in order to solve the existing problem that the main component of most of Mierocrystalline cellulose, lignin and the hemicellulose etc. of bark can not be utilized effectively when utilizing bark to make the feedstock production sizing agent, invented a kind of bark that utilizes and prepared wood-based plate sizing agent and manufacture method thereof, the concrete technical scheme that addresses this problem is as follows:
Sizing agent of the present invention is made up of liquefied product A and solution B, liquefied product A is made up of for 1～15 part 90～100 parts of phenol, 35～75 parts of tree bark powder, catalyzer by weight, solution B is made up of sodium hydroxide, formaldehyde, water, accounts for 0.26～0.74,0.8～1.65,0.6～2 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
It is as follows with the procedure of sizing agent to utilize bark to prepare wood-based plate:
Step 1, water ratio is broken into powder in the tree bark powder below 5%, particles of powder is of a size of 10～120 orders;
Step 2, get 90～100 parts of phenol and catalyzer by weight and join in the reactor for 1～8 part, stir and be warmed to 110～140 ℃;
Step 3, in the mixture that obtains through step 2, add tree bark powder 15～50 weight parts that obtain through step 1, in reactor, continue to mix, 110～140 ℃ of insulations 15～45 minutes down;
Step 4, the total addition level that adds catalyzer 0～7 weight part and tree bark powder after step 3 in the mixture that obtains once more are no more than 75 weight parts, the weight ratio of phenol and tree bark powder is 1～2: 1, after being incubated 1～4 hour under 120～150 ℃, be cooled to 60～80 ℃, make bark liquefied product A thus;
Step 5, to add the concentration account for liquefied product A gross weight 8.5%～12.5% in the liquefied product that obtains after step 4 be that 30～60% sodium hydroxide solution and the concentration that accounts for liquefied product A gross weight 80%～165% are 30～40% formaldehyde solution, stirring is also heated to 40 ℃～50 ℃, be incubated after 15～20 minutes, heat again keep 60～90 minutes to 65～70 ℃ after, heat once more to 85～95 ℃, be incubated 30～90 minutes;
Step 6, to add the concentration account for liquefied product A gross weight 15%～35% in the reaction product that obtains after step 5 be 30～60% sodium hydroxide solution and the water that accounts for liquefied product A gross weight 30%～100%, reach 160～200s (being coated with-4 glasss, 25 ℃) in 70～85 ℃ of reactions up to viscosity;
Step 7, the concentration that accounts for liquefied product A gross weight 2.5%～26.5% to the elementary glue interpolation that obtains in step 6 are 30～60% sodium hydroxide solution and the water that accounts for liquefied product A gross weight 30%～100%, be controlled at 40～130s in 70～85 ℃ of reactions up to the terminal point viscosity and (be coated with-4 glasss, 25 ℃), be cooled to below 40 ℃, promptly made bark wood-based plate sizing agent.
Bark of the present invention prepares wood-based plate sizing agent and manufacture method thereof, adopt the fine improvement sizing agent performance of sulfuric acid complex liquid energy, main components such as most of Mierocrystalline cellulose, lignin and the hemicellulose of bark have obtained fully effectively utilizing, reduced the cost of sizing agent, avoided the waste of biological material resource and optimized environment.
Embodiment
Embodiment one: the sizing agent of present embodiment is made up of liquefied product A and solution B, liquefied product A is made up of for 1～15 part 90～100 parts of phenol, 35～75 parts of tree bark powder, catalyzer by weight, solution B is made up of sodium hydroxide, formaldehyde, water, accounts for 0.26～0.74,0.8～1.65,0.6～2 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
Embodiment two: the sizing agent of present embodiment is made up of for 3 parts 90 parts of phenol, 35 parts of tree bark powder, catalyzer by weight liquefied product A, solution B is made up of sodium hydroxide, formaldehyde, water, accounts for 0.26,0.8,0.6 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
Embodiment three: the sizing agent of present embodiment is made up of for 5 parts 95 parts of phenol, 50 parts of tree bark powder, catalyzer by weight liquefied product A, solution B is made up of sodium hydroxide, formaldehyde, water, accounts for 0.5,1.65,2 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
Embodiment four: the sizing agent of present embodiment is made up of for 7 parts 100 parts of phenol, 75 parts of tree bark powder, catalyzer by weight liquefied product A, solution B is made up of sodium hydroxide, formaldehyde, water, accounts for 0.74,1.2,1.3 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
Embodiment five: it is as follows with the step of the method for sizing agent that present embodiment utilizes bark to prepare wood-based plate:
Bark is as a kind of natural macromolecular material, and its main chemical compositions is Mierocrystalline cellulose, lignin, hemicellulose and has a certain amount of extract.But, have substantial connection between the liquefaction degree of bark and kind, catalyst levels and the phenol of bark and the bark weight ratio.When phenol and bark weight ratio greater than 2 the time, can guarantee that the bark more than 85% is liquefied, for the softwood bark, can guarantee that then the bark more than 90% is liquefied, for example softwood such as tamarack, dragon spruce bark can be liquefied more than 95%.When phenol and bark weight ratio are lower than 2, should increase catalyst levels in right amount, be liquefied to guarantee the bark more than 80%.The bark that is higher than more than 75% for the liquefaction degree all can be used for preparing sizing agent.For the tree bark powder that is difficult to be liquefied, can suitably add catalyzer.
Step 1, water ratio is broken into powder in the tree bark powder below 5%, particles of powder is of a size of 10～120 orders;
Step 2, get 90～100 parts of phenol and catalyzer by weight and (adopt sulfuric acid and phosphoric acid, sulfuric acid and toluenesulphonic acids or sulfuric acid and other sour recombiner, weight ratio is the effective of 0.2～2: 1 phosphoric acid and sulfuric acid or toluenesulphonic acids and vitriolic composite catalyst,) 1～8 part add in the reactor that has thermometer, agitator, condensing reflux, stir and be warmed to 110～140 ℃ gradually;
Step 3, to the stirring that obtains through step 2 and the tree bark powder of adding 15～50 weight parts that obtain through step 1 in the phenol after heating, mixture of catalysts, in reactor, continue to stir, make the complete and reaction liquid thorough mixing of tree bark powder, be incubated 15～45 minutes down at 110～140 ℃;
Step 4, to the phenol that after step 3, obtains, catalyzer, add the tree bark powder that 0～7 part catalyzer and total addition level are no more than 75 weight parts in the mixture of tree bark powder once more, the weight ratio of phenol and tree bark powder is that 1～2: 1 (weight ratio of phenol and tree bark powder has determined the addition amount of bark sizing agent formaldehyde in building-up process, phenol and tree bark powder weight ratio are low more, the liquefaction bark can be few more with the amount of formaldehyde interpolation reaction, the bonding effect of the bark sizing agent that makes thus is poor more, sizing agent for the preparation superior performance, the part by weight of phenol and tree bark powder should not be lower than 1, is preferably in more than 1.5.), temperature remains on 120～150 ℃, and the tree bark powder that this stage added should portion-wise addition, will add catalyzer before each adding tree bark powder, additional amount accounts for 1～20% of tree bark powder weight, is incubated after 1～4 hour, be cooled to 60～80 ℃, obtain tree bark powder liquefied product A thus;
Step 5, to add the concentration account for liquefied product A gross weight 8.5%～12.5% in the liquefied product A that obtains after step 4 be that 30～60% sodium hydroxide solution and the concentration that accounts for liquefied product A gross weight 80%～165% are 30～40% formaldehyde solution, stirring is also heated to 40 ℃～50 ℃, be incubated 15～20 minutes, heat again to 65～70 ℃ of insulations 60～90 minutes, heat once more to 85～95 ℃, be incubated 30～90 minutes;
Adding the concentration that accounts for liquefied product A gross weight 15%～35% in the mixture of step 6, the reaction product neutralization solution that obtains after step 5 is 30～60% sodium hydroxide solution and the water that accounts for liquefied product A gross weight 30%～100%, reach 160～200s (being coated with-4 glasss, 25 ℃) in 70～85 ℃ of reactions up to viscosity;
Step 7, (be coated with-4 glasss at 160～200s to the viscosity that after step 6, obtains, 25 ℃) sizing agent in to add the concentration account for liquefied product A gross weight 2.5%～26.5% once more be 30～60% sodium hydroxide solution and the water that accounts for liquefied product A gross weight 30%～100%, react in 70～85 ℃ and to be controlled at 40～130s up to the terminal point viscosity and (to be coated with-4 glasss, 25 ℃), be cooled to below 40 ℃, promptly made the wood-based plate sizing agent.
Above-mentioned wood-based plate by adding alkali number and viscosity in the CONTROL PROCESS process, can prepare the sizing agent of different performance with the preparation of sizing agent.For the glued board sizing agent, viscosity is controlled at 100～130s (being coated with-4 glasss, 25 ℃); Use sizing agent for fibre board use sizing agent, ordinary particle board with sizing agent or oriented wood chipboard (OSB), viscosity should be controlled at 40～60s (being coated with-4 glasss, 25 ℃).No matter make which kind of sizing agent, the solids content of sizing agent should be controlled between 35～50%.
Embodiment six: the difference of present embodiment and embodiment five is that step 2 gets 100 parts of phenol by weight, 6.5 the sulfuric acid and the phosphoric acid of part, sulfuric acid and phosphoric acid weight ratio are 1: 1, step 3 is got 60 parts sugar maple tree bark powder, step 4 obtains 158 parts of bark liquefied product A, it is that 50% sodium hydroxide solution and 196.2 parts of concentration are 36% formaldehyde solution that step 5, six, seven is got 78.1 parts concentration, gets 197.5 parts of water again, and viscosity reaches 50s.Be fit to the used for shaving board sizing agent.Other step is identical with embodiment five.
Embodiment seven: the difference of present embodiment and embodiment six is that step 2 gets 90 parts of phenol by weight, 4 parts sulfuric acid and toluenesulphonic acids, the weight ratio of sulfuric acid and toluenesulphonic acids is 3: 1, step 3 is got 35 parts fallen leaves tree bark powder, step 4 obtains 133 parts of bark liquefied product A, it is that 45% sodium hydroxide solution and 198.4 parts of concentration are 36.5% formaldehyde solution that step 5, six, seven is got 65.9 parts of concentration, gets 166.5 parts water, and viscosity reaches 120s.Be fit to preparation glued board sizing agent.Other step is identical with embodiment five.
In the different sorts bark, relatively be suitable for preparing sizing agent as softwood bark and the liquefied product that is rich in the pourous wood bark of tannin, as bark of dahurian larch, spruce bark, the joyous bark of alloy etc.
Claims (10)
1, sizing agent is made up of liquefied product A and solution B, it is characterized in that liquefied product A is made up of for 1～15 part 90～100 parts of phenol, 35～75 parts of tree bark powder, catalyzer by weight, solution B is made up of sodium hydroxide, formaldehyde and water, accounts for 0.26～0.74,0.8～1.65,0.6～2 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
2, sizing agent according to claim 1 is characterized in that liquefied product A is made up of for 3 parts 90 parts of phenol, 35 parts of tree bark powder, catalyzer by weight, and solution B accounts for 0.26,0.8,0.6 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
3, sizing agent according to claim 1 is characterized in that liquefied product A is made up of for 5 parts 95 parts of phenol, 50 parts of tree bark powder, catalyzer by weight, and solution B accounts for 0.5,1.65,2 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
4, sizing agent according to claim 1 is characterized in that liquefied product A is made up of for 7 parts 100 parts of phenol, 75 parts of tree bark powder, catalyzer by weight, and solution B accounts for 0.74,1.2,1.3 of liquefied product A respectively by weight sodium hydroxide, formaldehyde, water.
5, to prepare wood-based plate as follows with the procedure of sizing agent for bark:
Step 1, water ratio is broken into powder in the tree bark powder below 5%, particles of powder is of a size of 10～120 orders;
Step 2, get 90～100 parts of phenol and catalyzer by weight and join in the reactor for 1～8 part, stir and be warmed to 110～140 ℃;
Step 3, in the mixture that obtains through step 2, add tree bark powder 15～50 weight parts that obtain through step 1, in reactor, continue to mix, 110～140 ℃ of insulations 15～45 minutes down;
Step 4, the total addition level that adds catalyzer 0～7 weight part and tree bark powder after step 3 in the mixture that obtains once more are no more than 75 weight parts, the weight ratio of phenol and tree bark powder is 1～2: 1, after being incubated 1～4 hour under 120～150 ℃, be cooled to 60～80 ℃, make bark liquefied product A thus;
Step 5, to add the concentration account for liquefied product A gross weight 8.5%～12.5% in the liquefied product that obtains after step 4 be that 30～60% sodium hydroxide solution and the concentration that accounts for liquefied product A gross weight 80%～165% are 30～40% formaldehyde solution, stirring is also heated to 40 ℃～50 ℃, be incubated after 15～20 minutes, heat again keep 60～90 minutes to 65～70 ℃ after, heat once more to 85～95 ℃, be incubated 30～90 minutes;
Step 6, to add the concentration account for liquefied product A gross weight 15%～35% in the reaction product that obtains after step 5 be 30～60% sodium hydroxide solution and the water that accounts for liquefied product A gross weight 30%～100%, reaches 160～200s in 70～85 ℃ of reactions up to viscosity;
Step 7, the concentration that accounts for liquefied product A gross weight 2.5%～26.5% to the elementary glue interpolation that obtains in step 6 are 30～60% sodium hydroxide solution and the water that accounts for liquefied product A gross weight 30%～100%, be controlled at 40～130s in 70～85 ℃ of reactions up to the terminal point viscosity, be cooled to below 40 ℃, promptly made bark wood-based plate sizing agent.
6, bark according to claim 5 prepares the method for wood-based plate with sizing agent, it is characterized in that catalyzer adopts sulfuric acid and phosphoric acid or sulfuric acid and toluenesulphonic acids, sulfuric acid and phosphoric acid weight ratio are 0.2～2: 1, and the weight ratio of sulfuric acid and toluenesulphonic acids is 0.2～2: 1.
7, bark according to claim 5 prepares the method for wood-based plate with sizing agent, and the concentration that it is characterized in that sodium hydroxide solution is 30～60%, and the concentration of formaldehyde solution is 30～40%.
8, bark according to claim 5 prepares the method for wood-based plate with sizing agent, it is characterized in that the solids content of sizing agent is controlled at 35～50%.
9, prepare the method for wood-based plate according to claim 5 or 6 or 7 described barks with sizing agent, it is characterized in that step 2 gets 100 parts of phenol by weight, 6.5 the sulfuric acid and the phosphoric acid of part, sulfuric acid and phosphoric acid weight ratio are 1: 1, step 3 is taken out 60 parts sugar maple tree bark powder, and step 4 obtains 158 parts of bark liquefied product A, and it is that 50% sodium hydroxide solution and 196.2 parts of concentration are 36% formaldehyde solution that step 5, six, seven is got 78.1 parts concentration, get 197.5 parts of water again, viscosity reaches 50s.
10, prepare the method for wood-based plate according to claim 5 or 6 or 7 described barks with sizing agent, it is characterized in that step 2 gets 90 parts of phenol by weight, 4 parts sulfuric acid and toluenesulphonic acids, the weight ratio of sulfuric acid and toluenesulphonic acids is 3: 1, step 3 is got 35 parts fallen leaves tree bark powder, step 4 obtains 133 parts of bark liquefied product A, it is that 45% sodium hydroxide solution and 198.4 parts of concentration are 36.5% formaldehyde solution that step 5, six, seven is got 65.9 parts of concentration, get 166.5 parts water, viscosity reaches 120s.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101191038B (en) * | 2006-11-20 | 2010-05-12 | 兰州大学 | Method for preparing paper-making black liquor adhesive |
| CN101812166A (en) * | 2010-05-06 | 2010-08-25 | 宁波工程学院 | Method for preparing wood-plastic composite material |
| CN101693380B (en) * | 2009-09-29 | 2011-08-10 | 北华大学 | Straw particle board employing bark powder modified phenolic resins as adhesives |
| CN102757762A (en) * | 2012-08-02 | 2012-10-31 | 廊坊市泰和通化工有限公司 | Alternative adhesive powder for industrial flour and preparation method |
| CN102757543A (en) * | 2011-09-30 | 2012-10-31 | 江西省林业科学院 | Preparation method of oil-tea camellia shell liquefying resin adhesive |
| CN113004864A (en) * | 2021-01-26 | 2021-06-22 | 福建皓尔宝科技集团有限公司 | Black wattle bark waste residue cellulose adhesive composition, preparation method and application |
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2005
- 2005-10-21 CN CN 200510010460 patent/CN1786099A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191038B (en) * | 2006-11-20 | 2010-05-12 | 兰州大学 | Method for preparing paper-making black liquor adhesive |
| CN101693380B (en) * | 2009-09-29 | 2011-08-10 | 北华大学 | Straw particle board employing bark powder modified phenolic resins as adhesives |
| CN101812166A (en) * | 2010-05-06 | 2010-08-25 | 宁波工程学院 | Method for preparing wood-plastic composite material |
| CN101812166B (en) * | 2010-05-06 | 2011-10-19 | 宁波工程学院 | Method for preparing wood-plastic composite material |
| CN102757543A (en) * | 2011-09-30 | 2012-10-31 | 江西省林业科学院 | Preparation method of oil-tea camellia shell liquefying resin adhesive |
| CN102757543B (en) * | 2011-09-30 | 2014-04-23 | 江西康替龙竹业有限公司 | Preparation method of oil-tea camellia shell liquefying resin adhesive |
| CN102757762A (en) * | 2012-08-02 | 2012-10-31 | 廊坊市泰和通化工有限公司 | Alternative adhesive powder for industrial flour and preparation method |
| CN102757762B (en) * | 2012-08-02 | 2013-05-29 | 廊坊市泰和通化工有限公司 | Alternative adhesive powder for industrial flour and preparation method |
| CN113004864A (en) * | 2021-01-26 | 2021-06-22 | 福建皓尔宝科技集团有限公司 | Black wattle bark waste residue cellulose adhesive composition, preparation method and application |
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