CN102120811A - Method for preparing waterproof adhesive - Google Patents
Method for preparing waterproof adhesive Download PDFInfo
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- CN102120811A CN102120811A CN2010105938405A CN201010593840A CN102120811A CN 102120811 A CN102120811 A CN 102120811A CN 2010105938405 A CN2010105938405 A CN 2010105938405A CN 201010593840 A CN201010593840 A CN 201010593840A CN 102120811 A CN102120811 A CN 102120811A
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- hydrolysis
- preparation
- reactor
- waterproof adhesive
- plant
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Abstract
The invention relates to a method for preparing a waterproof adhesive. In the method, a high-starch plant serving as a raw material and an aldehyde resin monomer are subjected to hydrolysis and copolymerization reactions in one step in a reactor in the presence of inorganic acid serving as a catalyst. Compared with the common preparation method of the waterproof adhesive, the method has the advantages of a small number of processes, simple equipment and improvement on adhesion stress of the adhesive. The method is applicable to a hot mounting process and a cold mounting process and is also suitable for civil use.
Description
Technical field
The present invention is a kind of preparation method of tackiness agent.
Background technology
The preparation method of general starch water-resistant adhesives is to extract starch earlier from contain high starch plant, again starch is hydrolyzed to dextrin, selects suitable monomers and dextrin copolymerization then for use.Whole process of preparation need be passed through complicated step, uses distinct device, and the production cycle is long, and the cost height must complete hydrolysis when especially starch being made dextrin becomes the hyalosome of small molecular weight, influences cohesive force.
Summary of the invention
Problem to be solved by this invention: provide that a kind of preparation method is simple, operation is few, and the strong water-resistant adhesives of cohesive force.
For solving the problems of the technologies described above, the technical solution used in the present invention is: directly adopt the plant that contains high starch such as corn, wheat, potato, rice to mix in reactor with water and mineral acid, heat up 60 ℃-100 ℃, stirred 8-60 minute, and added the aldehydes comonomer then as Resorcinol, meta-cresol, 3.5 xylenol, Paraformaldehyde 96, acetaldehyde, propionic aldehyde, butyraldehyde, urea, ethylene urine, trimeric cyanamide, acetone, methylethylketone stirred 0.5-3 hour under 50 ℃ of-90 ℃ of temperature.
The invention has the beneficial effects as follows: directly adopting the plant of high starch is raw material, is catalyzer with the mineral acid, and selecting the monomer of phenolic aldehyde or urine aldehydes or ketones urea formaldehyde is comonomer, once finishes operations such as hydrolysis and copolymerization in a reactor.This method not only significantly reduces operation, and needn't complete hydrolysis when hydrolysis reaction.On the contrary, participate in polymerization, strengthened cohesive force as long as form a kind of material of macromolecule.
Embodiment
Raw material is prepared: powder is worn in the corn peeling, and sifting out the above component of 70 orders can be standby.Semen Maydis powder 40 grams of in a there-necked flask that agitator, reflux exchanger and thermometer be housed, packing into, 120 milliliters in water, 1 milliliter of 36% hydrochloric acid stirs, and is warmed up to 70 ℃ of afterreactions 20 minutes, regulate PH to 7 with 0.2N NaOH solution, add the dihydroxyl first urine aqueous solution 20 grams again, reacted 1.5 hours down, restrain 1 then and pour in the there-necked flask after borax is dissolved in 40 ml waters at 90 ℃, regulate PH to 9 with 0.2N NaOH solution, in 70 ℃, react again and got final product discharging in 0.5 hour.With the tackiness agent that present method obtains, should add the set agent before use and carry out set as 1～2% NH
4CL, set can at room temperature also can be heated and carry out.The tackiness agent of set can be with general civilian paste.
It is starting raw material that the present invention directly adopts the plant that contains high starch, do not need through making dextrin, so not only the equipment of Shi Yonging is simple, and processing ease, operation is few, and is with short production cycle, but also strengthened the cohesive force of tackiness agent.Be compared as follows with similar tackiness agent with this adhesives fluting board.
Make the sticking fluting board of tackiness agent Japan fluting board with present method
Bursting strength kg/cm
215.2 17.6
Expose intensity kg/cm
233.6 38
Edge crushing kg 60.5 23
Joint strength kg facial tissue is laterally disconnected, can not draw away seam 9.6
The resulting tackiness agent use range of the present invention is wide, both can be used for hot mounting technology, can be used for cold mounting technology again, also can be civilian.
Claims (4)
1. the preparation method of a water-resistant adhesives, the plant that employing contains high starch is a raw material, with mineral acid is the catalyzer reaction that is hydrolyzed, and the monomer with urine aldehyde, phenolic aldehyde or ketone resin carries out copolymerization then, it is characterized in that hydrolysis and copolyreaction once finish in a reactor.
2. preparation method according to claim 1 is characterized in that: plant, water and the mineral acid that will contain high starch mix in reactor, under 60 ℃ of-100 ℃ of temperature hydrolysis 8-60 minute.
3. preparation method according to claim 1 is characterized in that: add the monomer of air aldehyde resin after the hydrolysis, reaction is 0.5-3 hour under 50 ℃ of-90 ℃ of temperature.
4. according to claim 2,3 described preparation methods is characterized in that: in hydrolysis, constantly stir during copolyreaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105938405A CN102120811A (en) | 2010-12-17 | 2010-12-17 | Method for preparing waterproof adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105938405A CN102120811A (en) | 2010-12-17 | 2010-12-17 | Method for preparing waterproof adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102120811A true CN102120811A (en) | 2011-07-13 |
Family
ID=44249490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105938405A Pending CN102120811A (en) | 2010-12-17 | 2010-12-17 | Method for preparing waterproof adhesive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102120811A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942888A (en) * | 2012-11-01 | 2013-02-27 | 永港伟方（北京）科技股份有限公司 | Super adhesive for artificial boards and preparation method thereof |
| CN104893614A (en) * | 2015-05-21 | 2015-09-09 | 芜湖蒲草电子商务有限公司 | High-strength waterproof binder for corrugated paper case |
| CN104926572A (en) * | 2015-06-10 | 2015-09-23 | 贵州润晋碳元素材料有限公司 | Waterproof bonding agent for ignition powder and preparation method of waterproof bonding agent |
-
2010
- 2010-12-17 CN CN2010105938405A patent/CN102120811A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942888A (en) * | 2012-11-01 | 2013-02-27 | 永港伟方（北京）科技股份有限公司 | Super adhesive for artificial boards and preparation method thereof |
| CN102942888B (en) * | 2012-11-01 | 2014-09-17 | 永港伟方（北京）科技股份有限公司 | Super adhesive for artificial boards and preparation method thereof |
| CN104893614A (en) * | 2015-05-21 | 2015-09-09 | 芜湖蒲草电子商务有限公司 | High-strength waterproof binder for corrugated paper case |
| CN104926572A (en) * | 2015-06-10 | 2015-09-23 | 贵州润晋碳元素材料有限公司 | Waterproof bonding agent for ignition powder and preparation method of waterproof bonding agent |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Chuncai Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhu Chuncai Document name: Notification of Publication of the Application for Invention |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Chuncai Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Chuncai Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110713 |