CN102199410A - Starch-based water-soluble adhesive used for bamboo wood and preparation method thereof - Google Patents
Starch-based water-soluble adhesive used for bamboo wood and preparation method thereof Download PDFInfo
- Publication number
- CN102199410A CN102199410A CN201110094827XA CN201110094827A CN102199410A CN 102199410 A CN102199410 A CN 102199410A CN 201110094827X A CN201110094827X A CN 201110094827XA CN 201110094827 A CN201110094827 A CN 201110094827A CN 102199410 A CN102199410 A CN 102199410A
- Authority
- CN
- China
- Prior art keywords
- water
- starch
- bamboo wood
- soluble
- treated starch
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to the field of an adhesive used for bamboo wood, particularly a starch-based water-soluble adhesive used for bamboo wood and a preparation method thereof. Aiming at the technical defects that the bamboo wood composite floor uses a formaldehyde-type adhesive as the adhesive and brings environmental pollution and human body harm caused by formaldehyde in the prior art, the invention provides the starch-based water-soluble adhesive used for bamboo wood and the preparation method thereof. The starch-based water-soluble adhesive is composed of modified starch, water and an aqueous epoxy resin dispersion, wherein the modified starch contains a carboxyl group and is soluble in water, the weight average molecular weight of the modified starch is smaller than 1200, the weight ratio of the modified starch to water is (1:2)-(2:3), and the mol ratio of the epoxy group in the aqueous epoxy resin dispersion to the carboxyl group in the modified starch is (2:1)-(1:2). In the invention, the aqueous epoxy resin is utilized as a crosslinking monomer to carry out crosslinking on the modified starch, so that the starch-based water-soluble adhesive has strong adhesive strength and water resistance, can be used for the adhesion of bamboo wood, and is a performance-excellent formaldehyde-free water-soluble environmentally-friendly adhesive used for bamboo wood.
Description
Technical field
The present invention relates to bamboo wood and use the sizing agent field, water-soluble bamboo wood sizing agent of particularly a kind of starch base and preparation method thereof.
Background technology
Bind the three-aldehyde glues that adopt between the multi-layered board in the tradition bamboo wood composite floor board as sizing agent, this sizing agent has serious formaldehyde harm, can pollute surrounding environment, harm health more.Though existing have free of contamination amylan to substitute three-aldehyde glue, this sizing agent is no aldehyde sizing agent environmentally safe, bonding strength is lower, the shortcoming of water tolerance extreme difference but the starch sizing agent exists, the multi-layered board that therefore can't be used for the bamboo wood composite floor board binds, and only is used for the stickup of envelope, paper and label at present.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to solve three-aldehyde glue that existing bamboo wood composite floor board uses to do the formaldehyde contaminate environment that sizing agent brings, the technological deficiency of harm health, water-soluble bamboo wood sizing agent of a kind of starch base and preparation method thereof is provided, and described sizing agent has higher bonding strength and excellent water tolerance simultaneously for no aldehyde sizing agent environmentally safe.
The technical scheme that technical solution problem of the present invention adopts: the water-soluble bamboo wood sizing agent of a kind of starch base, it is characterized in that comprising treated starch, water and aqueous epoxy resins dispersion, described treated starch is to have carboxyl and the water-soluble treated starch of energy, described treated starch weight-average molecular weight is less than 1200, the mass ratio of treated starch and water is 1:2～2:3, and the epoxide group in the aqueous epoxy resins dispersion and the mol ratio of the carboxylic group in the treated starch are 2:1～1:2.The present invention utilizes aqueous epoxy resins as cross-linking monomer, the above-mentioned treated starch that has carboxyl is carried out crosslinked, makes it produce stronger bonding strength and water tolerance.It is bonding that sizing agent of the present invention can be applicable to bamboo wood, is a kind of excellent performance, do not contain the water-soluble environment protective bamboo wood sizing agent of formaldehyde.
The preparation method of the water-soluble bamboo wood sizing agent of described starch base is characterized in that earlier that treated starch is water-solublely, is heated to 50～70 ℃, and dropping aqueous epoxy resins dispersion mixes in the aqueous solution.Utilize aqueous epoxy resins as cross-linking monomer, treated starch is carried out crosslinked, thereby make it produce stronger bonding strength and water tolerance.
Described treated starch preparation method is as follows: add earlier starch, trimellitic acid 1,2-anhydride, pyridine and anhydrous dimethyl sulphoxide (DMSO) in the there-necked flask that has stirring, thermometer, after said mixture at room temperature stirred 24 hours, pour in the ethyl acetate, precipitate, filter, collect white paste, carry out repetitive scrubbing with ethyl acetate then, place 60 ℃ dry 12 hours of vacuum drying oven at last, obtain having the treated starch of carboxyl.By with the reaction of the hydroxyl on the starch molecular chain and organic acid anhydride, thereby introduce pendant carboxylic group functional group, make its can with follow-up epoxide group generation chemical reaction.
Heating temperature during the molten water of described treated starch is preferably 50 °～60 ℃.The high dissolving of temperature soon but disadvantageous reaction easily takes place is taken all factors into consideration and is avoided the generation of reacting in dissolution rate and the dissolution process, and this Heating temperature is preferred.
The present invention utilizes aqueous epoxy resins as cross-linking monomer, carry out crosslinked to the treated starch that has carboxyl, make it produce stronger bonding strength and water tolerance, it is bonding that described sizing agent can be applicable to bamboo wood, is a kind of excellent performance, do not contain the water-soluble environment protective bamboo wood sizing agent of formaldehyde.
Embodiment
The present invention is described further below in conjunction with embodiment.
The water-soluble bamboo wood sizing agent of a kind of starch base, it is made up of treated starch, water and aqueous epoxy resins dispersion, described treated starch is to have carboxyl and the water-soluble treated starch of energy, described treated starch weight-average molecular weight is less than 1200, the mass ratio of treated starch and water is 1:2～2:3, and the epoxide group in the aqueous epoxy resins dispersion and the mol ratio of the carboxylic group in the treated starch are 2:1～1:2.
The preparation method is as follows for the water-soluble bamboo wood sizing agent of starch base of the present invention: at first make hydroxyl treated starch, described treated starch is made by common starch, earlier having stirring, add 176 gram starch in the there-necked flask of thermometer, 350 gram trimellitic acid 1,2-anhydrides, 100 gram pyridine and 500 milliliters of anhydrous dimethyl sulphoxides (DMSO), after said mixture at room temperature stirred 24 hours, pour in 1000 milliliters of ethyl acetate, precipitation, filter, collect white paste, carry out repetitive scrubbing with an amount of ethyl acetate then, place 60 ℃ dry 12 hours of vacuum drying oven at last, obtain having the treated starch of carboxyl.By with the reaction of the hydroxyl on the starch molecular chain and organic acid anhydride, thereby introduce pendant carboxylic group functional group, make its can with follow-up epoxide group generation chemical reaction.
Get above-mentioned treated starch 40 grams then and be dissolved in 60 ml waters, be heated to 60 ℃, obtain the transparent clarifying treated starch aqueous solution, and record and contain 0.15 mole of carboxyl in this aqueous solution.In this aqueous solution, drip aqueous epoxy resins dispersion (HD-EP05 commercially available prod, available from the sharp heavy chemicals company limited that uses of Beijing Jin Hui) 200 grams, (add-on is: in this mixed system, the molar ratio of epoxide group and carboxylic group is controlled at 2:1---between the 0.5:1) stir then, mix, get water-soluble no aldehyde bamboo wood sizing agent 300 grams of starch base.
In the use, the water-soluble bamboo wood sizing agent of starch base that the inventive method is prepared is 12% bamboo wood with the brushing mode water ratio that is used to bond, resin added is that 50g/m2(calculates by solid state component in the sizing agent), hot pressing pressure is 1.0MPa, 130 ℃ of hot pressing temperatures, hot pressing time 2 hours, health was tested after 48 hours, the dry state bonding strength of this product is 15MPa, and 65 ℃ of poach are after 3 hours, and recording the hygrometric state bonding strength is 1.5MPa.
Claims (4)
1. water-soluble bamboo wood sizing agent of starch base, it is characterized in that comprising treated starch, water and aqueous epoxy resins dispersion, described treated starch is to have carboxyl and the water-soluble treated starch of energy, described treated starch weight-average molecular weight is less than 1200, the mass ratio of treated starch and water is 1:2～2:3, and the epoxide group in the aqueous epoxy resins dispersion and the mol ratio of the carboxylic group in the treated starch are 2:1～1:2.
2. the preparation method of the water-soluble bamboo wood sizing agent of the described starch base of claim 1 is characterized in that earlier that treated starch is water-solublely, is heated to 50～70 ℃, and dropping aqueous epoxy resins dispersion mixes in the aqueous solution.
3. the preparation method of the water-soluble bamboo wood sizing agent of starch base according to claim 2, it is characterized in that described treated starch preparation method is as follows: in the there-necked flask that has stirring, thermometer, add earlier starch, trimellitic acid 1,2-anhydride, pyridine and anhydrous dimethyl sulphoxide (DMSO), after said mixture at room temperature stirred 24 hours, pour in the ethyl acetate, precipitate, filter, collect white paste, carry out repetitive scrubbing with ethyl acetate then, place 60 ℃ dry 12 hours of vacuum drying oven at last, obtain having the treated starch of carboxyl.
4. according to the preparation method of claim 2 or the water-soluble bamboo wood sizing agent of 3 described starch base, the Heating temperature when it is characterized in that the molten water of described treated starch is 50 °～60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110094827XA CN102199410A (en) | 2011-04-15 | 2011-04-15 | Starch-based water-soluble adhesive used for bamboo wood and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110094827XA CN102199410A (en) | 2011-04-15 | 2011-04-15 | Starch-based water-soluble adhesive used for bamboo wood and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102199410A true CN102199410A (en) | 2011-09-28 |
Family
ID=44660404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110094827XA Pending CN102199410A (en) | 2011-04-15 | 2011-04-15 | Starch-based water-soluble adhesive used for bamboo wood and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102199410A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906727A (en) * | 2016-06-25 | 2016-08-31 | 张莘蔓 | Method for preparing novel environment-friendly adhesive |
| CN106103492A (en) * | 2014-03-25 | 2016-11-09 | 巴斯夫欧洲公司 | The carboxylate of polysaccharide |
| CN111378403A (en) * | 2020-04-03 | 2020-07-07 | 浙江广源印刷包装有限公司 | Adhesive for high-strength quick-drying beer box and preparation method thereof |
| US10876022B2 (en) | 2014-12-23 | 2020-12-29 | Ecosynthetix Inc. | Biopolymer and isocyanate based binder and composite materials |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6454001A (en) * | 1987-08-24 | 1989-03-01 | Sugiyama Sangyo Kagaku Kenk | Production of water-soluble starch fatty acid ester |
| JP2003096101A (en) * | 2001-09-20 | 2003-04-03 | Toppan Printing Co Ltd | Cellulose/starch derivative, process for preparation thereof, and biodegradable laminate |
| CN1840601A (en) * | 2005-03-31 | 2006-10-04 | 朱寿会 | Method for making adhesive made of starch and nontoxic high molecular polymer |
| CN101161684B (en) * | 2007-11-23 | 2010-05-19 | 华南理工大学 | Infra-red synthesis of crosslinked carboxymethyl fecula |
-
2011
- 2011-04-15 CN CN201110094827XA patent/CN102199410A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6454001A (en) * | 1987-08-24 | 1989-03-01 | Sugiyama Sangyo Kagaku Kenk | Production of water-soluble starch fatty acid ester |
| JP2003096101A (en) * | 2001-09-20 | 2003-04-03 | Toppan Printing Co Ltd | Cellulose/starch derivative, process for preparation thereof, and biodegradable laminate |
| CN1840601A (en) * | 2005-03-31 | 2006-10-04 | 朱寿会 | Method for making adhesive made of starch and nontoxic high molecular polymer |
| CN101161684B (en) * | 2007-11-23 | 2010-05-19 | 华南理工大学 | Infra-red synthesis of crosslinked carboxymethyl fecula |
Non-Patent Citations (1)
| Title |
|---|
| 赵仁杰等: "《竹材人造板工艺学》", 30 June 2002, article "《竹材人造板常用粘合剂与涂料》", pages: 20 - 21 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106103492A (en) * | 2014-03-25 | 2016-11-09 | 巴斯夫欧洲公司 | The carboxylate of polysaccharide |
| US10167347B2 (en) | 2014-03-25 | 2019-01-01 | Basf Se | Carboxylate ester of polysaccharide |
| US10876022B2 (en) | 2014-12-23 | 2020-12-29 | Ecosynthetix Inc. | Biopolymer and isocyanate based binder and composite materials |
| US10947429B2 (en) | 2014-12-23 | 2021-03-16 | Ecosynthetix Inc. | Biopolymer and isocyanate based binder and composite materials |
| US11530343B2 (en) | 2014-12-23 | 2022-12-20 | Ecosynthetix Inc. | Biopolymer and isocyanate based binder and composite materials |
| CN105906727A (en) * | 2016-06-25 | 2016-08-31 | 张莘蔓 | Method for preparing novel environment-friendly adhesive |
| CN111378403A (en) * | 2020-04-03 | 2020-07-07 | 浙江广源印刷包装有限公司 | Adhesive for high-strength quick-drying beer box and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101831255B (en) | Method for preparing modified starch adhesive for timber | |
| CN102010678B (en) | Preparation method for biological oil-phenol-starch adhesive | |
| CN104774588A (en) | Protein-based wood adhesive, and preparation method and application and use method thereof | |
| CN102199410A (en) | Starch-based water-soluble adhesive used for bamboo wood and preparation method thereof | |
| CN109181585A (en) | A kind of lignin-base is without aldehyde adhesive and preparation method thereof | |
| CN107641495A (en) | A kind of vegetable protein adhesive and its preparation method and application | |
| CN103421466A (en) | Biomass composite glue and preparation method therefor | |
| CN104194695B (en) | Whisker modified urea-formaldehyde resin adhesive of a kind of engrafted nanometer kenaf and preparation method thereof | |
| CN102533182A (en) | Method for preparing starch-based water-resistant adhesive for corrugated board production | |
| CN101486889B (en) | Monomer copolymerization modified soy protein adhesive and preparation thereof | |
| CN102994022B (en) | Instant adhesive | |
| CN101698786A (en) | Adhesive for orienting shaving board and production method thereof | |
| CN104910840A (en) | Adhesive for plywood | |
| CN102690615B (en) | Polystyrene waterproof wood adhesive | |
| CN104073219A (en) | Formaldehyde-free adhesive for artificial board and preparation method of formaldehyde-free adhesive | |
| CN101979452B (en) | Method for preparing waterproof adhesive for corrugated paper production | |
| CN103102827A (en) | Starch binder | |
| CN104877063A (en) | Polyvinyl acetate emulsion and preparation method thereof | |
| CN111363482B (en) | High-strength water-resistant plant protein adhesive and preparation method thereof | |
| CN103694932B (en) | Modified soybean-based emulsion adhesive and preparation method thereof | |
| CN110305618B (en) | Preparation method of water-resistant label adhesive for processing glass bottled drink | |
| CN106543917A (en) | The preparation method of maleic anhydride dry method esterification starch adhesive | |
| CN113461888A (en) | Highly branched urea-polyamine-formaldehyde copolycondensation resin and preparation method thereof | |
| CN106800913A (en) | A kind of modified timber-used soy protein adhesives and preparation method thereof | |
| CN115651567B (en) | Formaldehyde-free high-water-resistance modified starch-based wood adhesive and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110928 |