CN102807834A - Single-component polyurethane adhesive and method for preparing same - Google Patents
Single-component polyurethane adhesive and method for preparing same Download PDFInfo
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- CN102807834A CN102807834A CN2012101378865A CN201210137886A CN102807834A CN 102807834 A CN102807834 A CN 102807834A CN 2012101378865 A CN2012101378865 A CN 2012101378865A CN 201210137886 A CN201210137886 A CN 201210137886A CN 102807834 A CN102807834 A CN 102807834A
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- sizing agent
- monocomponent polyurethane
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Abstract
The invention provides a single-component polyurethane adhesive. The single-component polyurethane adhesive comprises the following components by weight: 80 to 100 grams of diisocyanate, 150 to 250 grams of polyester, 0.02 to 0.06 gram of catalyst and 1 to 8 grams of auxiliary agent. The invention also provides a method for preparing the single-component polyurethane adhesive. The single-component polyurethane adhesive is abundant in raw materials, low in production cost and simple in technology; and has high viscosity and performance, so not only the problem of illegal cooking oil is solved, but also the great market demands are met.
Description
Technical field
The present invention relates to field of materials, relate in particular to a kind of monocomponent polyurethane sizing agent and preparation method thereof.
Background technology
Sewer oil, all kinds of poor quality oils that general reference exists in life are like the edible oil that reclaims, the frying oil that uses repeatedly etc.In the process of refining " sewer oil ", a series of chemical transformation such as vegetable and animals oils is become sour through polluting after, oxidation and decomposition, generation has the toxic material of weight to human body; Because of the composition in the sewer oil is triglyceride level flavacin, benzo flower, aldehyde, ketone, lactone; If in a single day sewer oil gets in people's the mouth, will cause symptoms such as maldigestion, headache, dizziness, uncomfortable liver area, objectionable impurities wherein can be destroyed white cell and digestive tube mucous membrane; Cause food poisoning, even canceration.
Adhesive for polyurethane (Polyurethane Adhesive) is meant and in molecular chain, contains carbamate groups (NHCOO-) or NCO (sizing agent NCO).Adhesive for polyurethane is divided into POLYMETHYLENE POLYPHENYLISOCYANATE and urethane two big classes.Contain in the POLYMETHYLENE POLYPHENYLISOCYANATE molecular chain isocyano-(NCO) and carbamate groups (NH-COO-); So adhesive for polyurethane shows the activity and the polarity of height; With the base material that contains reactive hydrogen; Like porous materials such as foam, plastics, timber, leather, fabric, paper, potteries, and the material of any surface finish such as metal, glass, rubber, plastics all has the excellent in chemical bonding force.Adhesive for polyurethane also has easy, splendid resistance to low temperature of toughness adjustable, technique for sticking and advantages of excellent stability or the like characteristic.Just because of this good adhesiveproperties of adhesive for polyurethane with to the bonding flexibility of multiple base material, its Application Areas is constantly enlarged, become sizing agent with fastest developing speed at home and abroad in recent years.
In view of this, how will be harmful to the healthy sewer oil of the masses and become the adhesive for polyurethane that benefits the people, be the problem that the present invention need solve.
Summary of the invention
To the serious hazardness of sewer oil and market very big demand property to adhesive for polyurethane; The object of the present invention is to provide a kind of monocomponent polyurethane sizing agent, comprise vulcabond 80～100 grams, polyester 150～250 grams; Catalyzer 0.02～0.06 gram, auxiliary agent 1～8 gram.
Preferably, the polyester in the monocomponent polyurethane sizing agent is a sewer oil synthetic saturated polyester;
Preferably, the vulcabond in the monocomponent polyurethane sizing agent is a tolylene diisocyanate, 4, and 4`-diphenylmethanediisocyanate, HDI or isophorone diisocyanate, its weight percent are 0%～30%;
Preferably, the weight percent of the vulcabond in the monocomponent polyurethane sizing agent is 13%;
Preferably, the catalyzer in the monocomponent polyurethane sizing agent is dibutyl tin laurate, stannous octoate, tetramethyl butane diamine or triethylenediamine;
Preferably, the auxiliary agent in the monocomponent polyurethane sizing agent is CS-1 or CS-2;
Preferably, the weight of the CS-1 in the monocomponent polyurethane sizing agent is 4～8 grams, and the weight of CS-2 is 1～3 gram.
Another object of the present invention is to provide a kind of preparation method of monocomponent polyurethane sizing agent; Comprise the ester and the acid that provide in the sewer oil composition, produce saturated polyester n (HOOC)-R-COOH+ (n+1) HO-R '-OH → HO-R-(COOR with excessive alcohol reaction ... COOR ')
n-OH+H
2O; Polyester carries out addition reaction with vulcabond again, obtains urethane: R-NCO+R '-OH → RNHCOOR '
Specifically may further comprise the steps: at first the mixture with ester in the sewer oil composition and acid reacts according to the ratio of mol ratio n: n+1 with alcohol, generates saturated polyester, and 110 ℃～120 ℃ vacuumize-0.07～-0.10 MPa; 1～3 hour postcooling dewaters; Again vulcabond is dropped in the reaction kettle, add 150～250 gram dehydration polyester when heating, 0.02～0.06 gram catalyzer to 45～55 ℃; 80 ℃ were reacted 2.5～3.5 hours; Add 4～8 gram CS-1 or 1～3 gram CS-2 after being cooled to room temperature, 26～27 ℃ were stirred 15 minutes, and obtained the monocomponent polyurethane sizing agent.
Preferably, the molecular weight of the saturated polyester that uses in the step is 2000, and functionality is 2;
Preferably, the alcohol that uses in the step is terepthaloyl moietie or pinakon.
Adopt monocomponent polyurethane sizing agent of the present invention and preparation method thereof, raw material is sufficient, and production cost is low, and technology is simple, and the product viscosity that makes is high, and performance is good, not only efficiently solves the problem of sewer oil, has also satisfied the very big demand in market.
Embodiment
Below in conjunction with embodiment embodiment of the present invention is done further to describe in detail.
Isocyano-NCO is present in vulcabond tolylene diisocyanate, 4; 4`-diphenylmethanediisocyanate, HDI, isophorone diisocyanate etc. have-all raw materials of NCO in; The percentage composition of NCO is that the demand according to the client designs, and the percentage composition of general-NCO can be from 0～30%.Following examples all adopt is 13% content.
Embodiment 1
Because the sewer oil complicated component, wherein ester is wider with the value of the measuring scope of acid, adopts 8 moles in the present embodiment.
At first extract 8 moles in the mixture of ester in the sewer oil composition and acid and 9 moles alcohol, reaction generates the saturated polyester of 2000 molecular weight, 2 functionality, and wherein, the molecular weight of ester and acid mixture is 153, and pure molecular weight is 118, and functionality is 2.Because the content of acid has fluctuation, measure its acid number with acidometer, obtain saturated polyester through the content that changes hydroxyl.120 ℃ vacuumize-0.09 MPa, and the 2 hours postcooling that dewater drop into tolylene diisocyanate in the reaction kettle again; Add 208 gram saturated polyesters when heating to 50 ℃; 0.03 the gram dibutyl tin laurate, 80 ℃ of reactions 3 hours are cooled to and add 6 gram CS-1 after the room temperature; 26 ℃ were stirred 15 minutes, and obtained the monocomponent polyurethane sizing agent.
Embodiment 2
Because the sewer oil complicated component, wherein ester is wider with the value of the measuring scope of acid, adopts 9 moles in the present embodiment.
At first extract 8 moles in the mixture of ester in the sewer oil composition and acid and 9 moles alcohol, reaction generates the saturated polyester of 2000 molecular weight, 2 functionality, and wherein, the molecular weight of ester and acid mixture is 127, and pure molecular weight is 118, and functionality is 2.Because the content of acid has fluctuation, measure its acid number with acidometer, obtain saturated polyester through the content that changes hydroxyl.120 ℃ vacuumize-0.09 MPa, and the 2 hours postcooling that dewater drop into tolylene diisocyanate in the reaction kettle again; Add 208 gram saturated polyesters when heating to 50 ℃; 0.03 the gram dibutyl tin laurate, 80 ℃ of reactions 3 hours are cooled to and add 2 gram CS-2 after the room temperature; 27 ℃ were stirred 15 minutes, and obtained the monocomponent polyurethane sizing agent.
Therefore, by monocomponent polyurethane sizing agent of the present invention and preparation method thereof, not only efficiently solve the problem of sewer oil; Also satisfied the very big demand in market, production cost is low simultaneously, and technology is simple; The product viscosity that makes is high, and performance is good, has the very strong market competitiveness.
In the preceding text, embodiment of the present invention has been described.But those of ordinary skill in the art can be understood, and under the situation without departing from the spirit and scope of the present invention, can also specific embodiments of the invention do various changes and replacement.These changes and replacement all drop in claims restricted portion of the present invention.
Claims (10)
1. monocomponent polyurethane sizing agent is characterized in that being calculated by weight by following composition and processes, and comprises vulcabond 80～100 grams, polyester 150～250 grams, catalyzer 0.02～0.06 gram, auxiliary agent 1～8 gram.
2. monocomponent polyurethane sizing agent as claimed in claim 1 is characterized in that, said polyester is a sewer oil synthetic saturated polyester.
3. monocomponent polyurethane sizing agent as claimed in claim 1; It is characterized in that; Said vulcabond is a tolylene diisocyanate, 4, and 4`-diphenylmethanediisocyanate, HDI or isophorone diisocyanate, its weight percent are 0%～30%.
4. monocomponent polyurethane sizing agent as claimed in claim 3 is characterized in that, the weight percent of said vulcabond is 13%.
5. monocomponent polyurethane sizing agent as claimed in claim 1 is characterized in that, said catalyzer is dibutyl tin laurate, stannous octoate, tetramethyl butane diamine or triethylenediamine.
6. monocomponent polyurethane sizing agent as claimed in claim 1 is characterized in that, said auxiliary agent is CS-1 or CS-2.
7. monocomponent polyurethane sizing agent as claimed in claim 6 is characterized in that, the weight of said CS-1 is 4～8 grams, and the weight of said CS-2 is 1～3 gram.
8. the preparation method of a monocomponent polyurethane sizing agent; It is characterized in that may further comprise the steps: at first the mixture with ester in the sewer oil composition and acid reacts according to the ratio of mol ratio n: n+1 with alcohol, generates saturated polyester, and 110 ℃～120 ℃ vacuumize-0.07～-0.10 MPa; 1～3 hour postcooling dewaters; Again said vulcabond is dropped in the reaction kettle, add 150～250 gram dehydration polyester when heating, the said catalyzer of 0.02～0.06 gram to 45～55 ℃; 80 ℃ were reacted 2.5～3.5 hours; Add 4～8 said CS-1 of gram or the said CS-2 of 1～3 gram after being cooled to room temperature, 26～27 ℃ were stirred 15 minutes, and obtained said monocomponent polyurethane sizing agent.
9. the preparation method of monocomponent polyurethane sizing agent as claimed in claim 8 is characterized in that, the molecular weight of said saturated polyester is 2000, and functionality is 2.
10. the preparation method of monocomponent polyurethane sizing agent as claimed in claim 8 is characterized in that, said alcohol is terepthaloyl moietie or pinakon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101378865A CN102807834A (en) | 2012-05-07 | 2012-05-07 | Single-component polyurethane adhesive and method for preparing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101378865A CN102807834A (en) | 2012-05-07 | 2012-05-07 | Single-component polyurethane adhesive and method for preparing same |
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| CN102807834A true CN102807834A (en) | 2012-12-05 |
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| CN2012101378865A Pending CN102807834A (en) | 2012-05-07 | 2012-05-07 | Single-component polyurethane adhesive and method for preparing same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143458A (en) * | 2020-08-11 | 2020-12-29 | 湖南省春龙竹艺有限公司 | Aldehyde-free adhesive for bamboo summer sleeping mat and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5698613A (en) * | 1995-02-21 | 1997-12-16 | Mancuso Chemicals Limited | Chemical binder |
| CN101265401A (en) * | 2008-04-23 | 2008-09-17 | 中国科学院广州化学研究所 | Method for preparing biomass polyurethane adhesive |
| CN101747497A (en) * | 2009-10-28 | 2010-06-23 | 江苏强林生物能源有限公司 | Preparation method of recycled oil polyester polyol and application thereof |
| CN101760164A (en) * | 2009-12-22 | 2010-06-30 | 广州鹿山新材料股份有限公司 | Polyurethane hot melt adhesive for adhesive interlinings and preparation method thereof |
-
2012
- 2012-05-07 CN CN2012101378865A patent/CN102807834A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5698613A (en) * | 1995-02-21 | 1997-12-16 | Mancuso Chemicals Limited | Chemical binder |
| CN101265401A (en) * | 2008-04-23 | 2008-09-17 | 中国科学院广州化学研究所 | Method for preparing biomass polyurethane adhesive |
| CN101747497A (en) * | 2009-10-28 | 2010-06-23 | 江苏强林生物能源有限公司 | Preparation method of recycled oil polyester polyol and application thereof |
| CN101760164A (en) * | 2009-12-22 | 2010-06-30 | 广州鹿山新材料股份有限公司 | Polyurethane hot melt adhesive for adhesive interlinings and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143458A (en) * | 2020-08-11 | 2020-12-29 | 湖南省春龙竹艺有限公司 | Aldehyde-free adhesive for bamboo summer sleeping mat and preparation method thereof |
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Application publication date: 20121205 |