CN101204823A - Method of utilizing compound enzyme improved straw particle and urea acetal resin glue performance - Google Patents
Method of utilizing compound enzyme improved straw particle and urea acetal resin glue performance Download PDFInfo
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- CN101204823A CN101204823A CNA2007101913479A CN200710191347A CN101204823A CN 101204823 A CN101204823 A CN 101204823A CN A2007101913479 A CNA2007101913479 A CN A2007101913479A CN 200710191347 A CN200710191347 A CN 200710191347A CN 101204823 A CN101204823 A CN 101204823A
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Abstract
The invention relates to a method for using compound enzyme to improve gluing property between straw shavings and urea-formaldehyde resin, of which technique steps are as follows: (1) straws are processed into shaving units of straw units with a length of 20-25mm though a straw cutter before being put into an enzyme processing reactor; (2) 20kg citric acid-sodium dihydrogen phosphate buffer solution with pH5.0 is added into 1kg straws, in which enzyme solution of the compound enzyme is then added, (3) processing time in the enzyme processing reactor is 4 to 8 hours and processing temperature is 40 to 50 DEG C; (4) the straw shavings after being processed is dried and the temperature of 80-100 DEG C causes the moisture content of the straw shavings to reach 3-5 percent; (5) 12-14 percent (percentage between absolute resin and absolute dry straw shavings) of urea-formaldehyde resin adhesive is added into the straw shavings obtained in the step (4); (6) the straw shavings are formed, precompressed, thermocompressed through a mechanical forming machine and conducted post treatment processing steps. The invention has the advantages that the compound enzyme improves the gluing property between the straw shavings and the urea-formaldehyde resin, thus producing qualified products.
Description
Technical field
What the present invention relates to is a kind of method of utilizing glue performance between compound enzyme improved rice (wheat) stalk wood shavings and Lauxite.Belong to the technical field of making stalk-shaving board.
Background technology
At present, the adhesive of producing wooden flake board mainly is the lower Lauxite of price, and the production of rice (wheat) stalk-shaving board can not be adopted urea-formaldehyde resin adhesive, needing to adopt the higher isocyanates of price is that adhesive is produced qualified products, its reason is that more wax and silica are contained in rice (wheat) stalk wood shavings surface, has influenced glue performance between rice (wheat) stalk wood shavings and the Lauxite.
Summary of the invention
The objective of the invention is to improve glue performance between stalk wood shavings and Lauxite, propose a kind of method of utilizing glue performance between compound enzyme improved straw wood shavings and Lauxite.
Technical solution of the present invention: the method for utilizing glue performance between compound enzyme improved straw wood shavings and Lauxite, the processing step that it is characterized in that this method is divided into, (1) adopt chaffcutter that stalk is processed growth 20-25mm stalk unit, be processed into particle shape unit with pulverizer, be positioned in the enzyme treatment reactor; (2) stalk 1kg adds pH5.0 citric acid-phosphate sodium dihydrogen buffer solution 20kg, the enzyme liquid that adds complex enzyme (zytase, cellulase and lipase) simultaneously, wherein the zytase consumption is 100000-150000IU, the cellulase consumption is 50000-60000FPU, and the lipase consumption is 100000-200000IU (press the proportioning zytase: cellulase: lipase=(100-150IU/g stalk): (50-60FPU/g stalk): (100-200IU/g stalk) calculates); (3) in the enzyme treatment reactor processing time 4-8 hour, treatment temperature 40-50 ℃; (4) the stalk wood shavings after the processing are through super-dry, and temperature 80-100 ℃ makes stalk wood shavings moisture content reach 3-5%; (5) apply urea-formaldehyde resin adhesive 12-14% (percentages of over dry resin/over dry stalk wood shavings); (6) again through mechanical forming machine mat formation, precompressed, hot pressing and post-processed processing, wherein, slab pre-pressing process step: precompressed is carried out at normal temperatures, max line pressure 180-200kg/cm; The heat pressing process step: adopt single or multiple lift form press, hot pressing temperature 150-180 ℃, hot pressing time is 0.4-0.6min/mm, and the hot pressing maximum pressure is 2.5-3.0MPa; Post-processed processing technology step: cooling at normal temperatures, cutting edge and sanding, cooling is carried out in the turnover panel cooling device, time 30-60min, it is 1220mm * 2440mm that cutting edge is processed into book size with saw with product, uses abrasive finishing machine abrasive finishing after stacking 48-72 hour.
Advantage of the present invention: utilize complex enzyme can improve glue performance between stalk wood shavings and the Lauxite, the stalk wood shavings of handling by complex enzyme can adopt urea-formaldehyde resin adhesive to produce to reach the countries concerned's standard qualified products.Every index of product is a MOR: 15-18MPa, internal bond strength: 0.35-0.45MPa, thickness swelling rate: 6-8%, moisture content: 5-8%.
The specific embodiment
Embodiment 1, at first adopt chaffcutter that rice wheat straw is processed growth 20mm stalk unit, be processed into particle shape unit with pulverizer then, be positioned in the enzyme treatment reactor, stalk 1kg adds pH5.0 citric acid-phosphate sodium dihydrogen buffer solution 20kg, the enzyme liquid (specifically measuring) that adds an amount of complex enzyme simultaneously in following ratio, this complex enzyme comprises zytase, cellulase and lipase, proportioning zytase between them: cellulase: lipase=(100IU/g raw material): (50FPU/g raw material): (100IU/g raw material), 4 hours processing times in the enzyme treatment reactor, 40 ℃ of treatment temperatures; Rice after the processing (wheat) stalk wood shavings make stalk wood shavings moisture content reach 3% through super-dry (80 ℃ of temperature), apply urea-formaldehyde resin adhesive 12% (over dry resin/over dry stalk wood shavings); Again through mechanical forming machine mat formation, precompressed, hot pressing and post-processed processing.Wherein, slab pre-pressing process step: precompressed is carried out at normal temperatures, max line pressure 180kg/cm; The heat pressing process step: adopt single or multiple lift form press, 150 ℃ of hot pressing temperatures, hot pressing time is 0.4min/mm, the hot pressing maximum pressure is 2.5MPa; Post-processed processing technology step: cooling at normal temperatures, cutting edge and sanding, cooling is carried out in the turnover panel cooling device, time 30min, it is 1220mm * 2440mm that cutting edge is processed into book size with saw with product, stacking was used abrasive finishing machine abrasive finishing after 48 hours.
Embodiment 2, at first adopt chaffcutter that rice wheat straw is processed growth 25mm stalk unit, be processed into particle shape unit with pulverizer then, be positioned in the enzyme treatment reactor, stalk 1kg adds pH5.0 citric acid-phosphate sodium dihydrogen buffer solution 20kg, the enzyme liquid (specifically measuring) that adds an amount of complex enzyme simultaneously in following ratio, this complex enzyme comprises zytase, cellulase and lipase, proportioning zytase between them: cellulase: lipase=(150IU/g raw material): (60FPU/g raw material): (200IU/g raw material), 8 hours processing times in the enzyme treatment reactor, 50 ℃ of treatment temperatures; Rice after the processing (wheat) stalk wood shavings make stalk wood shavings moisture content reach 5% through super-dry (100 ℃ of temperature), apply urea-formaldehyde resin adhesive 14% (over dry resin/over dry stalk wood shavings); Again through mechanical forming machine mat formation, precompressed, hot pressing and post-processed processing.Wherein, slab pre-pressing process step: precompressed is carried out at normal temperatures, max line pressure 200kg/cm; The heat pressing process step: adopt single or multiple lift form press, 180 ℃ of hot pressing temperatures, hot pressing time is 0.6min/mm, the hot pressing maximum pressure is 3.0MPa; Post-processed processing technology step: cooling at normal temperatures, cutting edge and sanding, cooling is carried out in the turnover panel cooling device, time 60min, it is 1220mm * 2440mm that cutting edge is processed into book size with saw with product, stacking was used abrasive finishing machine abrasive finishing after 72 hours.
Claims (1)
1. utilize the method for glue performance between compound enzyme improved straw wood shavings and Lauxite, the processing step that it is characterized in that this method is divided into, (1) adopts chaffcutter that stalk is processed growth 20-25mm stalk unit, be processed into particle shape unit, be positioned in the enzyme treatment reactor with pulverizer; (2) stalk 1kg adds pH5.0 citric acid-phosphate sodium dihydrogen buffer solution 20kg, add complex enzyme simultaneously, complex enzyme comprises the enzyme liquid of zytase, cellulase and lipase, wherein the zytase consumption is 100000-150000IU, the cellulase consumption is 50000-60000FPU, the lipase consumption is 100000-200000IU, zytase: cellulase: lipase=(100-150IU/g stalk): (50-60FPU/g stalk): (100-200IU/g stalk); (3) in the enzyme treatment reactor processing time 4-8 hour, treatment temperature 40-50 ℃; (4) the stalk wood shavings after the processing are through super-dry, and temperature 80-100 ℃ makes stalk wood shavings moisture content reach 3-5%; (5) apply urea-formaldehyde resin adhesive 12-14%, the percentage of over dry resin/over dry stalk wood shavings; (6) again through mechanical forming machine mat formation, precompressed, hot pressing and post-processed processing, wherein, slab pre-pressing process step: precompressed is carried out at normal temperatures, max line pressure 180-200kg/cm; The heat pressing process step: adopt single or multiple lift form press, hot pressing temperature 150-180 ℃, hot pressing time is 0.4-0.6min/mm, and the hot pressing maximum pressure is 2.5-3.0MPa; Post-processed processing technology step: cooling at normal temperatures, cutting edge and sanding, cooling is carried out in the turnover panel cooling device, time 30-60min, it is 1220mm * 2440mm that cutting edge is processed into book size with saw with product, uses abrasive finishing machine abrasive finishing after stacking 48-72 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101913479A CN100558519C (en) | 2007-12-18 | 2007-12-18 | Stalk wood shavings plate-making method after complex enzyme is handled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101913479A CN100558519C (en) | 2007-12-18 | 2007-12-18 | Stalk wood shavings plate-making method after complex enzyme is handled |
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| Publication Number | Publication Date |
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| CN101204823A true CN101204823A (en) | 2008-06-25 |
| CN100558519C CN100558519C (en) | 2009-11-11 |
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| CNB2007101913479A Expired - Fee Related CN100558519C (en) | 2007-12-18 | 2007-12-18 | Stalk wood shavings plate-making method after complex enzyme is handled |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085686A (en) * | 2010-10-28 | 2011-06-08 | 中国科学院广州能源研究所 | Method for plating by utilizing straw and wood shavings subjected to anaerobic fermentation treatment |
| CN102493242A (en) * | 2011-12-30 | 2012-06-13 | 天津商业大学 | Method for manufacturing particleboards by using wheat straws preprocessed through steam explosion |
| CN102517357A (en) * | 2011-12-14 | 2012-06-27 | 重庆理工大学 | Method for hydrolyzing celluloses through cellulase |
| CN102990750A (en) * | 2012-10-25 | 2013-03-27 | 郭荣才 | Preparation method of wood fiber used for towels |
| CN103192441A (en) * | 2013-04-19 | 2013-07-10 | 琚长林 | Plant fiber composite fireproof plate |
| CN103203791A (en) * | 2013-04-24 | 2013-07-17 | 琚长林 | Novel environment-friendly plant fiber home door |
| CN103240785A (en) * | 2012-02-13 | 2013-08-14 | 张双保 | Authigene gluing shaving board preparation method based on bio-enzyme cooperative preprocessing technology |
| CN104804683A (en) * | 2015-04-29 | 2015-07-29 | 湖州汉泰木业有限公司 | Adhesive capable of improving adhesive force of plywood |
| CN107127861A (en) * | 2017-06-04 | 2017-09-05 | 向德超 | A kind of preparation method of moisture retardant particieboard |
| CN113084960A (en) * | 2021-04-26 | 2021-07-09 | 齐鲁工业大学 | Corn straw board and preparation method thereof |
| CN113119266A (en) * | 2021-04-26 | 2021-07-16 | 齐鲁工业大学 | Sorghum straw plate and preparation method thereof |
| CN114686287A (en) * | 2022-04-11 | 2022-07-01 | 齐鲁工业大学 | Method for regulating physical and chemical properties of wheat straw waste residue granular fuel through biological enzyme pretreatment |
| CN115805630A (en) * | 2022-12-14 | 2023-03-17 | 优优新材料股份有限公司 | Treatment process for improving bonding strength of straw fibers for artificial boards |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818467A (en) * | 2010-03-29 | 2010-09-01 | 南京林业大学 | Method for manufacturing cellulose micro-nano-material enhanced adhesive by using enzyme treatment and mechanical method |
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2007
- 2007-12-18 CN CNB2007101913479A patent/CN100558519C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085686B (en) * | 2010-10-28 | 2012-07-04 | 中国科学院广州能源研究所 | Method for plating by utilizing straw and wood shavings subjected to anaerobic fermentation treatment |
| CN102085686A (en) * | 2010-10-28 | 2011-06-08 | 中国科学院广州能源研究所 | Method for plating by utilizing straw and wood shavings subjected to anaerobic fermentation treatment |
| CN102517357A (en) * | 2011-12-14 | 2012-06-27 | 重庆理工大学 | Method for hydrolyzing celluloses through cellulase |
| CN102493242A (en) * | 2011-12-30 | 2012-06-13 | 天津商业大学 | Method for manufacturing particleboards by using wheat straws preprocessed through steam explosion |
| CN103240785A (en) * | 2012-02-13 | 2013-08-14 | 张双保 | Authigene gluing shaving board preparation method based on bio-enzyme cooperative preprocessing technology |
| CN102990750B (en) * | 2012-10-25 | 2015-01-14 | 青岛华辰中小企业创新创业服务有限公司 | Preparation method of wood fiber used for towels |
| CN102990750A (en) * | 2012-10-25 | 2013-03-27 | 郭荣才 | Preparation method of wood fiber used for towels |
| CN103192441A (en) * | 2013-04-19 | 2013-07-10 | 琚长林 | Plant fiber composite fireproof plate |
| CN103203791A (en) * | 2013-04-24 | 2013-07-17 | 琚长林 | Novel environment-friendly plant fiber home door |
| CN103203791B (en) * | 2013-04-24 | 2015-09-09 | 琚长林 | A kind of string house ornamentation door |
| CN104804683A (en) * | 2015-04-29 | 2015-07-29 | 湖州汉泰木业有限公司 | Adhesive capable of improving adhesive force of plywood |
| CN107127861A (en) * | 2017-06-04 | 2017-09-05 | 向德超 | A kind of preparation method of moisture retardant particieboard |
| CN113084960A (en) * | 2021-04-26 | 2021-07-09 | 齐鲁工业大学 | Corn straw board and preparation method thereof |
| CN113119266A (en) * | 2021-04-26 | 2021-07-16 | 齐鲁工业大学 | Sorghum straw plate and preparation method thereof |
| CN114686287A (en) * | 2022-04-11 | 2022-07-01 | 齐鲁工业大学 | Method for regulating physical and chemical properties of wheat straw waste residue granular fuel through biological enzyme pretreatment |
| CN115805630A (en) * | 2022-12-14 | 2023-03-17 | 优优新材料股份有限公司 | Treatment process for improving bonding strength of straw fibers for artificial boards |
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| Publication number | Publication date |
|---|---|
| CN100558519C (en) | 2009-11-11 |
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Granted publication date: 20091111 Termination date: 20161218 |