CN109227866A - A kind of reed plate of high intensity - Google Patents
A kind of reed plate of high intensity Download PDFInfo
- Publication number
- CN109227866A CN109227866A CN201811036150.2A CN201811036150A CN109227866A CN 109227866 A CN109227866 A CN 109227866A CN 201811036150 A CN201811036150 A CN 201811036150A CN 109227866 A CN109227866 A CN 109227866A
- Authority
- CN
- China
- Prior art keywords
- starch
- reed
- high intensity
- reed plate
- adhesive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
- B27N3/183—Forming the mat-edges, e.g. by cutting
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/003—Crosslinking of starch
- C08B31/006—Crosslinking of derivatives of starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/18—Oxidised starch
- C08B31/185—Derivatives of oxidised starch, e.g. crosslinked oxidised starch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/04—Starch derivatives
Abstract
A kind of reed plate of high intensity provided by the invention, including reed and mongolicum Turcz. with Modified Starch Adhesive, its production technology is that reed and mongolicum Turcz. with Modified Starch Adhesive are carried out to mixing to mat formation, roll and the forming of saw side, wherein the production procedure of mongolicum Turcz. with Modified Starch Adhesive is simple, cohesive force is strong, and the adhesive being prepared belongs to bion adhesive, environmental-friendly, and have very strong compatibility for reed clast, it is easy to produce high strength bonding effect.Compared with the reed plate that Lauxite is prepared, internal bond strength increases 27%, has biggish popularization and application foreground.
Description
Technical field
The present invention relates to artificial board production field, in particular to a kind of reed plate of high intensity.
Background technique
2014 the 8th time national forest assessment be as the result is shown: area of woods is only world's per capita share per capita in China
1/4, be ranked first 34 in the world；Management volume only has the 1/7 of world's per capita share per capita, and world rankings occupy the 122nd,
Forest reserves total amount relative deficiency, it is of low quality, be unevenly distributed.State Council in 2015 conserves forests related regulations and new gloomy
Woods method tucker finds timber alternative materials so that China faces huge pressure and challenge with the enterprise of wood producing wood-based plate
Receive more and more extensive attention.
Madison forestry products laboratory of the U.S. and the researcher of University of Illinois cooperate to agricultural wastes such as wheat straws
Resource situation, the chemical component of raw material, the performance of stalk board and the application prospect in market are studied in detail and analyze,
Show that it is absolutely feasible for making full use of them to manufacture stalk board.The dosage of timber has not only been saved in the use of artificial board of straw,
And the added value of stalk is greatly increased, be conducive to environmental protection, meanwhile, made using this renewable resource of agricultural crop straw
The protection that the forest reserves are also helped for timber substitute products, for alleviating resource constraint, mitigating environmental pressure, maintenance agricultural life
State balance is also all significant, more meets the requirement of China's sustainable economic development.
As a large agricultural country, annual crop stalk yield is at 700,000,000 tons or so.Research has shown that reed can generation
The production of wood-based plate is used for for timber.There is more sufficient reed sediment substrate in China, and 2,000,000 tons of annual output accounts for about global reed total yield
The 6% of amount, and distributional region is very wide, reed main producing region up to 14.As raw material of artifical plate, the advantages of reed is fine
Dimension cellulose content is suitable with timber, and major defect is that there are wax coats for reed stem epidermis, and epidermal tissue and leaf portion silicon content are higher, influences
Conventional wood carries out gluing to reed raw material with adhesive, becomes one of the main bugbear in reed Wood-based Panel Production.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of reed plate of high intensity.
To achieve the goals above, the reed plate of a kind of high intensity provided by the invention, including reed and modified starch adhesive
Glutinous agent, production technology is that reed and mongolicum Turcz. with Modified Starch Adhesive are carried out to mixing to mat formation, roll and saw side forming, wherein changing
The preparation flow of property starch adhesive are as follows:
A. starch oxidation is modified: preparing sodium sulfite or 50 mL of l ferrous ammonium sulfate solution, is packed into 250 mL three hole flasks, adds
Enter cornstarch, after being vigorously stirred 20 ~ 30 min, oxidizing agent solution is added dropwise thereto, continue to be stirred to react 45 ~ 60 min, makes
Obtain oxidized starch solution.In above-mentioned starch oxidation modifying process, the l ferrous ammonium sulfate solution is 10 ~ 15 g/L, sulfurous acid
Sodium is 30 ~ 50 g/L.Starch dosage is 12 ~ 18 times of sodium sulphate ferrous ammonium, is 4 ~ 7 times of ammonium sulfite.Oxidizing agent solution is
30% H2O2, volume is 0.4 ~ 0.6 mL, or the liquor natrii hypochloritis of 0.2 mol/L, volume are 1 ~ 3 mL.Sulfurous
The effect of sour sodium or iron ammonium sulfate is reacted with starch end group, to improve the modified effect of starch molecule.In contrast, secondary
The performance of sodium chlorate oxidant is better than H2O2, but the former is easy to produce chlorine pollution, it is therefore proposed that using the latter.
B. cross-linking modified: epoxychloropropane to be added into above-mentioned oxygen jade starch rice starch under stiring, with 6 ~ 12% hydrogen-oxygens
Change the pH value control of sodium adjusting starch solution 9.5 ~ 11.5,3 ~ 5 h are reacted in heating.It is above-mentioned it is cross-linking modified during, epoxy
Chloropropane additive amount is the 2 ~ 5% of starch quality.Reaction temperature is 50 DEG C, and 10 or so, the reaction time is 4 h for pH control.Epoxy
Chloropropane can greatly improve the interaction between starch molecule, to improve coupling degree.
C. it is gelatinized: product being transferred in 100 mL beakers after the reaction was completed, 8 mL lye are added while hot, stirring is equal
It is even to get the cross-linking modified starch adhesive of epoxychloropropane.Lye therein is one in sodium hydroxide solution or urea liquid
Kind, wherein 2 ~ 3 g containing 1 ~ 1.5 g of sodium hydrate solid or urea.Gelatinization process ensure that the stability of adhesive, avoid
The reactivity of active site in use.
A kind of high-affinity mongolicum Turcz. with Modified Starch Adhesive for the production of reed plate provided by the invention, production procedure is simple,
The adhesive being prepared belongs to bion adhesive, environmental-friendly, and has very strong compatibility for reed clast, is easy to produce
Raw high strength bonding effect, has biggish popularization and application foreground.
Specific embodiment
Embodiment 1
To achieve the goals above, the reed plate of a kind of high intensity provided by the invention, including reed and mongolicum Turcz. with Modified Starch Adhesive,
Its production technology is that reed and mongolicum Turcz. with Modified Starch Adhesive are carried out to mixing to mat formation, roll and saw side forming, wherein modified form sediment
The preparation flow of powder adhesive are as follows:
A. starch oxidation is modified: preparing sodium sulfite or 50 mL of l ferrous ammonium sulfate solution, is packed into 250 mL three hole flasks, adds
Enter cornstarch, after being vigorously stirred 20 ~ 30 min, oxidizing agent solution is added dropwise thereto, continue to be stirred to react 45 ~ 60 min, makes
Obtain oxidized starch solution.In above-mentioned starch oxidation modifying process, the l ferrous ammonium sulfate solution is 10 ~ 15 g/L, sulfurous acid
Sodium is 30 ~ 50 g/L.Starch dosage is 12 ~ 18 times of sodium sulphate ferrous ammonium, is 4 ~ 7 times of ammonium sulfite.Oxidizing agent solution is
30% H2O2, volume is 0.4 ~ 0.6 mL, or the liquor natrii hypochloritis of 0.2 mol/L, volume are 1 ~ 3 mL.Sulfurous
The effect of sour sodium or iron ammonium sulfate is reacted with starch end group, to improve the modified effect of starch molecule.In contrast, secondary
The performance of sodium chlorate oxidant is better than H2O2, but the former is easy to produce chlorine pollution, it is therefore proposed that using the latter.
B. cross-linking modified: epoxychloropropane to be added into above-mentioned oxygen jade starch rice starch under stiring, with 6 ~ 12% hydrogen-oxygens
Change the pH value control of sodium adjusting starch solution 9.5 ~ 11.5,3 ~ 5 h are reacted in heating.It is above-mentioned it is cross-linking modified during, epoxy
Chloropropane additive amount is the 2 ~ 5% of starch quality.Reaction temperature is 50 DEG C, and 10 or so, the reaction time is 4 h for pH control.Epoxy
Chloropropane can greatly improve the interaction between starch molecule, to improve coupling degree.
C. it is gelatinized: product being transferred in 100 mL beakers after the reaction was completed, 8 mL lye are added while hot, stirring is equal
It is even to get the cross-linking modified starch adhesive of epoxychloropropane.Lye therein is one in sodium hydroxide solution or urea liquid
Kind, wherein 2 ~ 3 g containing 1 ~ 1.5 g of sodium hydrate solid or urea.Gelatinization process ensure that the stability of adhesive, avoid
The reactivity of active site in use.
In order to achieve the purpose that test adhesive property, we are prepared for adhesive according to parameters described below parameter, and by its
Trial-manufacturing process applied to reed plate.In starch oxidation modifying process, using the l ferrous ammonium sulfate solution of 12 g/L, starch dosage
It is 15 times of sodium sulphate ferrous ammonium.Oxidizing agent solution is the liquor natrii hypochloritis of 0.2 mol/L, and volume is 2 mL.Cross-linking process
The pH of starch solution, heating reaction are adjusted using 8% sodium hydroxide.Chloropropane additive amount is the 4% of starch quality.Reaction temperature
It is 50 DEG C, 10 or so, the reaction time is 4 h for pH control.Lye used in gelatinization process is urea liquid, contains urea
2 g, volume are 6 mL.According to adhesive prepared by this process, using processing item identical with Lauxite preparation reed plate
Part and identical resin added, the internal bond strength for the reed plate manufactured experimently reach the 127% of Lauxite glued board.
Embodiment 2
In starch oxidation modifying process, using the sodium sulfite solution of 40 g/L, starch dosage is 6 times of sodium sulfite.Oxidation
Agent solution is the liquor natrii hypochloritis of 0.2 mol/L, and volume is 2 mL.Cross-linking process adjusts starch solution using 8% sodium hydroxide
PH, heating reaction.Chloropropane additive amount is the 4% of starch quality.Reaction temperature is 50 DEG C, and pH control is reacted 10 or so
Time is 4 h.Lye used in gelatinization process is urea liquid, and containing 2 g of urea, volume is 6 mL.According to this one stream
The adhesive of journey preparation is obtained using processing conditions identical with Lauxite preparation reed plate and identical resin added, trial-production
The internal bond strength of reed plate reach the 113% of Lauxite glued board.
Embodiment 3
In starch oxidation modifying process, using the l ferrous ammonium sulfate solution of 12 g/L, starch dosage is the 15 of sodium sulphate ferrous ammonium
Times.Oxidizing agent solution is the liquor natrii hypochloritis of 0.2 mol/L, and volume is 2 mL.Cross-linking process is adjusted using 8% sodium hydroxide
The pH of starch solution, heating reaction.Chloropropane additive amount is the 4% of starch quality.Reaction temperature is 50 DEG C, and pH is controlled 10
Left and right, reaction time are 4 h.Lye used in gelatinization process is NaOH solution, contains 1.3 g of NaOH, volume 6
mL.According to adhesive prepared by this process, using with the Lauxite identical processing conditions of preparation reed plate and identical apply
Glue amount, the internal bond strength for the reed plate manufactured experimently reach the 122% of Lauxite glued board.
Embodiment 4
In starch oxidation modifying process, using the l ferrous ammonium sulfate solution of 15 g/L, starch dosage is the 15 of sodium sulphate ferrous ammonium
Times.Oxidizing agent solution is the liquor natrii hypochloritis of 0.2 mol/L, and volume is 2 mL.Cross-linking process is adjusted using 8% sodium hydroxide
The pH of starch solution, heating reaction.Chloropropane additive amount is the 4% of starch quality.Reaction temperature is 50 DEG C, and pH is controlled 10
Left and right, reaction time are 4 h.Lye used in gelatinization process is urea liquid, and containing 2 g of urea, volume is 6 mL.It presses
According to the adhesive of this process preparation, the identical processing conditions of reed plate and identical resin added are prepared using with Lauxite,
The internal bond strength for manufacturing experimently obtained reed plate reaches the 121% of Lauxite glued board.
Embodiment 5
In starch oxidation modifying process, using the l ferrous ammonium sulfate solution of 12 g/L, starch dosage is the 18 of sodium sulphate ferrous ammonium
Times.Oxidizing agent solution is the liquor natrii hypochloritis of 0.2 mol/L, and volume is 2 mL.Cross-linking process is adjusted using 8% sodium hydroxide
The pH of starch solution, heating reaction.Chloropropane additive amount is the 4% of starch quality.Reaction temperature is 50 DEG C, and pH is controlled 10
Left and right, reaction time are 4 h.Lye used in gelatinization process is urea liquid, and containing 2 g of urea, volume is 6 mL.It presses
According to the adhesive of this process preparation, the identical processing conditions of reed plate and identical resin added are prepared using with Lauxite,
The internal bond strength for manufacturing experimently obtained reed plate reaches the 118% of Lauxite glued board.
Embodiment 6
In starch oxidation modifying process, using the l ferrous ammonium sulfate solution of 12 g/L, starch dosage is the 15 of sodium sulphate ferrous ammonium
Times.Oxidizing agent solution is the liquor natrii hypochloritis of 0.2 mol/L, and volume is 2 mL.Cross-linking process is adjusted using 8% sodium hydroxide
The pH of starch solution, heating reaction.Chloropropane additive amount is the 2% of starch quality.Reaction temperature is 50 DEG C, and pH is controlled 10
Left and right, reaction time are 4 h.Lye used in gelatinization process is urea liquid, and containing 2 g of urea, volume is 6 mL.It presses
According to the adhesive of this process preparation, the identical processing conditions of reed plate and identical resin added are prepared using with Lauxite,
The internal bond strength for manufacturing experimently obtained reed plate is the 93% of Lauxite glued board.
Claims (7)
1. a kind of reed plate of high intensity, which is characterized in that including reed and mongolicum Turcz. with Modified Starch Adhesive, production technology is by reed
Reed and mongolicum Turcz. with Modified Starch Adhesive carry out mixing and mat formation, roll and saw side forming, wherein the preparation stream of mongolicum Turcz. with Modified Starch Adhesive
Journey are as follows:
A. starch oxidation is modified: preparing sodium sulfite or 50 mL of l ferrous ammonium sulfate solution, is packed into 250 mL three hole flasks, adds
Enter cornstarch, after being vigorously stirred 20 ~ 30 min, oxidizing agent solution is added dropwise thereto, continue to be stirred to react 45 ~ 60 min, makes
Obtain oxidized starch solution；
B. cross-linking modified: epoxychloropropane to be added into above-mentioned oxygen jade starch rice starch under stiring, with 6 ~ 12% sodium hydroxides
The pH value control of starch solution is adjusted 9.5 ~ 11.5,3 ~ 5 h are reacted in heating；
C. it is gelatinized: product being transferred in 100 mL beakers after the reaction was completed, 8 mL lye are added while hot, stir evenly, i.e.,
Obtain the cross-linking modified starch adhesive of epoxychloropropane.
2. a kind of reed plate of high intensity according to claim 1, which is characterized in that the starch oxidation modifying process
In, the l ferrous ammonium sulfate solution is 10 ~ 15 g/L, and sodium sulfite is 30 ~ 50 g/L.
3. a kind of reed plate of high intensity according to claim 1, which is characterized in that the starch oxidation modifying process
In, starch dosage is 12 ~ 18 times of sodium sulphate ferrous ammonium, is 4 ~ 7 times of ammonium sulfite.
4. a kind of reed plate of high intensity according to claim 1, which is characterized in that the starch oxidation modifying process
In, the oxidizing agent solution be 30% H2O2, volume is 0.4 ~ 0.6 mL, or the sodium hypochlorite of 0.2 mol/L is molten
Liquid, volume are 1 ~ 3 mL.
5. a kind of reed plate of high intensity according to claim 1, which is characterized in that it is described it is cross-linking modified during,
Epoxychloropropane additive amount is the 2 ~ 5% of starch quality.
6. a kind of reed plate of high intensity according to claim 1, which is characterized in that it is described it is cross-linking modified during,
Reaction temperature is 50 DEG C, and 10 or so, the reaction time is 4 h for pH control.
7. a kind of reed plate of high intensity according to claim 1, which is characterized in that described in the gelatinization process
Lye be one of sodium hydroxide solution or urea liquid, wherein contain 1 ~ 1.5 g of sodium hydrate solid or urea 2 ~ 3
g。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036150.2A CN109227866A (en) | 2018-09-06 | 2018-09-06 | A kind of reed plate of high intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036150.2A CN109227866A (en) | 2018-09-06 | 2018-09-06 | A kind of reed plate of high intensity |
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| Publication Number | Publication Date |
|---|---|
| CN109227866A true CN109227866A (en) | 2019-01-18 |
Family
ID=65060378
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| CN201811036150.2A Pending CN109227866A (en) | 2018-09-06 | 2018-09-06 | A kind of reed plate of high intensity |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775885A (en) * | 2005-12-12 | 2006-05-24 | 莫元烈 | Cationic branched-chain starch wood adhesive and its preparing method |
| CN1899783A (en) * | 2006-07-13 | 2007-01-24 | 北京科聚化工新材料有限公司 | Method for producing plate using crop straw |
| CN102676098A (en) * | 2012-06-11 | 2012-09-19 | 合肥工业大学 | Modified-starch-based wood adhesive and preparation method thereof |
| CN104861892A (en) * | 2015-04-21 | 2015-08-26 | 河南城建学院 | Oxidized starch adhesive and preparation method thereof |
| CN104960066A (en) * | 2015-06-15 | 2015-10-07 | 湖北益嘉林业发展有限公司 | Grass tree structural board and production technology thereof |
| CN106065195A (en) * | 2016-08-21 | 2016-11-02 | 冯可发 | A kind of novel environment friendly flame-retardant wood-plastic material |
| CN107868627A (en) * | 2017-11-15 | 2018-04-03 | 上海鎏彩建材科技股份有限公司 | Timber industry vegetable adhesive and preparation method thereof |
| CN108314975A (en) * | 2018-02-08 | 2018-07-24 | 成都科创城科技有限公司 | A kind of preparation method of environment-friendly adhesive |
-
2018
- 2018-09-06 CN CN201811036150.2A patent/CN109227866A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775885A (en) * | 2005-12-12 | 2006-05-24 | 莫元烈 | Cationic branched-chain starch wood adhesive and its preparing method |
| CN1899783A (en) * | 2006-07-13 | 2007-01-24 | 北京科聚化工新材料有限公司 | Method for producing plate using crop straw |
| CN102676098A (en) * | 2012-06-11 | 2012-09-19 | 合肥工业大学 | Modified-starch-based wood adhesive and preparation method thereof |
| CN104861892A (en) * | 2015-04-21 | 2015-08-26 | 河南城建学院 | Oxidized starch adhesive and preparation method thereof |
| CN104960066A (en) * | 2015-06-15 | 2015-10-07 | 湖北益嘉林业发展有限公司 | Grass tree structural board and production technology thereof |
| CN106065195A (en) * | 2016-08-21 | 2016-11-02 | 冯可发 | A kind of novel environment friendly flame-retardant wood-plastic material |
| CN107868627A (en) * | 2017-11-15 | 2018-04-03 | 上海鎏彩建材科技股份有限公司 | Timber industry vegetable adhesive and preparation method thereof |
| CN108314975A (en) * | 2018-02-08 | 2018-07-24 | 成都科创城科技有限公司 | A kind of preparation method of environment-friendly adhesive |
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Application publication date: 20190118 |
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