CN1760305A - Flocking glue of polyurethane, preparation method and application - Google Patents
Flocking glue of polyurethane, preparation method and application Download PDFInfo
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- CN1760305A CN1760305A CN 200510029406 CN200510029406A CN1760305A CN 1760305 A CN1760305 A CN 1760305A CN 200510029406 CN200510029406 CN 200510029406 CN 200510029406 A CN200510029406 A CN 200510029406A CN 1760305 A CN1760305 A CN 1760305A
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- polyurethane
- mdi
- flocking glue
- flocking
- glue
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Abstract
A flocking polyurethane adhesive is prepared proportionally from MDI, modified MDI, polyester polyol and polyether polyol through proportionally mixing MDI with modified MDI, prepolymerizing, polymerizing and regulating viscosity. Its advantages are high adhesive and high resistance to abrasion, water and high temp.
Description
[technical field]
The present invention relates to polymeric material field, relate in particular to a kind of flocking glue of polyurethane and preparation method and purposes.
[background technology]
The feature of urethane (PU) chemical structure is to contain multiple characteristic group-NH-COO-(carbamate groups), thereby has improved the mechanical property of itself, is widely used in all kinds of rooms articles for use, automotive trim product and the industrial starting material.And in the prior art, the water tolerance of flocking glue of polyurethane, wear resistance are not good, often make troubles to industrial production in actual applications.
[summary of the invention]
The object of the present invention is to provide a kind of above-mentioned shortcoming that overcomes, have wear resistance, water tolerance and stable on heating flocking glue of polyurethane and preparation method preferably.
A kind of flocking glue of polyurethane is reacted by a certain percentage by MDI, modification MDI, polyester polyol, polyether glycol and to make, and its prescription (by weight) is:
MDI 25-35％
Modification MDI 10-25%
Polyester polyol 5-20%
Polyether glycol 30-50%
Described a kind of flocking glue of polyurethane, its preferably fill a prescription (by weight) is:
MDI 35％
Modification MDI 12.5%
Polyester polyol 11.3%
Polyether glycol 41.2%
A kind of flocking glue of polyurethane, its optimization formula (by weight) is:
MDI 32.9％
Modification MDI 14.5%
Polyester polyol 9.5%
Polyether glycol 43%
A kind of flocking glue of polyurethane may further comprise the steps: (1) mixes MDI and modification MDI, (2) pre-polymerization: the polyether polyatomic alcohol component that will make isocyanic ester blending ingredients and dehydration is reacted, (3) polymerization: the component that step 2 is made and the polyester polyol of dehydration react, and (4) transfer sticking: the viscosity of adjusting flocking glue of polyurethane.
Employed modification MDI is by the carbodiimide modification.
Described polyester polyol is that monomer is the diprotic acid and the dibasic alcohol polymeric of 4-6 carbon, the straight chain polyvalent alcohol of molecular weight between 1500-2500.Hexanodioic acid-Diethylene Glycol polyester polyol or benzoic anhydride polyester polyol preferably.
Described polyether glycol is the straight chain polyvalent alcohol about molecular weight 1000-2000.That specifically uses produces " three change " board polyether glycol by Shanghai Gaoqiao petrochemical corporation (complex).
The processing parameter of pre-polymerization is: temperature of reaction (T)=55～75 ℃; Reaction times (t)=0.5～1 hour.
The polymeric processing parameter is: temperature of reaction (T)=60～80 ℃; Reaction times (t)=1～2 hour.
Transfer the processing parameter when sticking to be: temperature of reaction (T)=70～85 ℃, flocking glue of polyurethane is controlled at 10～17%, and viscosity is adjusted to: 4000～8000mpa.s/25 ℃.
Flocking glue of polyurethane of the present invention is widely used in static flocking, as rubber carpet flocking etc.
The present invention compares with prior art, has monomer wear-resisting preferably, water-fast, resistance toheat in prescription, is reacted at a certain temperature a kind of rubber plate to be had better sticking power and the good flocking glue of polyurethane of water resistance.The invention solves rubber plate Flock Adhesive water tolerance, the not good problem of wear resistance.
[embodiment]
Embodiments of the invention are described below, but content of the present invention is not limited to this fully.
The preparation of example 1 flocking glue of polyurethane
Choose following prescription: MDI:28%, modification MDI:10%, hexanodioic acid-Diethylene Glycol polyester polyol; 20%, polyether glycol: 42%.
Take following processing step to be prepared: (1) mixes MDI and modification MDI, and (2) pre-polymerization: the polyether polyatomic alcohol component that will make isocyanic ester blending ingredients and dehydration is reacted, temperature of reaction (T)=60 ℃; Reaction times (t)=0.5 hour.(3) polymerization: the component that step 2 is made and the hexanodioic acid-Diethylene Glycol polyester polyol of dehydration react, temperature of reaction (T)=60 ℃; Reaction times (t)=1 hour (4) transfers sticking: adjust the viscosity of flocking glue of polyurethane, and temperature of reaction (T)=72 ℃, flocking glue of polyurethane is controlled at 12%, and viscosity is adjusted to: 4000mpa.s/25 ℃, get product.
The preparation of example 2 flocking glue of polyurethane
Choose following prescription: MDI:35%, modification MDI:12.5%, benzoic anhydride polyester polyol: 11.3%, polyether glycol: 41.2%.
Take following processing step: (1) mixes MDI and modification MDI, and (2) pre-polymerization: the polyether polyatomic alcohol component that will make isocyanic ester blending ingredients and dehydration is reacted, temperature of reaction (T)=70 ℃; Reaction times (t)=0.7 hour.(3) polymerization: the component that step 2 is made and the benzoic anhydride polyester polyol of dehydration react, temperature of reaction (T)=70 ℃; Reaction times (t)=1.5 hour (4) transfers sticking: adjust the viscosity of flocking glue of polyurethane, and temperature of reaction (T)=72 ℃, flocking glue of polyurethane is controlled at 15%, and viscosity is adjusted to: 6000mpa.s/25 ℃, get product.
The preparation of example 3 flocking glue of polyurethane
Choose following prescription: MDI:32.9%, modification MDI:14.5%, polyester polyol: 9.5%, polyether glycol: 43%.
Take following processing step: (1) mixes MDI and modification MDI, and (2) pre-polymerization: the polyether polyatomic alcohol component that will make isocyanic ester blending ingredients and dehydration is reacted, temperature of reaction (T)=75 ℃; Reaction times (t)=1 hour.(3) polymerization: the component that step 2 is made and the benzoic anhydride polyester polyol of dehydration react, temperature of reaction (T)=80 ℃; Reaction times (t)=2 hour (4) transfers sticking: adjust the viscosity of flocking glue of polyurethane, and temperature of reaction (T)=82 ℃, flocking glue of polyurethane is controlled at 17%, and viscosity is adjusted to: 8000mpa.s/25 ℃, get product.
The application of example 4 flocking glue of polyurethane on static flocking
At first carry out gluing at rubber plate by striated, the glue that is adopted is the mono-component polyurethane static flocking adhesive, and spread is 110g/m
2, carry out craft again and mend glue, also need be when mending glue by striated.The amount of static flocking is 250g/m
2, the roller speed of static flocking machine is 4 meters/minute.Vulcanize the temperature during sulfuration (T)=145 ℃ then; During curing time 30min curing oven, temperature of oven is 150 ℃, and the time that keeps in baking oven is 40 minutes, and fine hair and rubber plate are closely fit together.And then cool off, the refrigerative temperature is that normal temperature gets final product, and packs warehouse-in at last.
After being suitable for the prepared Flock Adhesive flocking of the present invention, wear resistance has a greater degree of improvement, and no matter is under the xerotripsis or the condition of wet rubbing, wear-resisting can both be above 10000 times.
Claims (10)
1, a kind of flocking glue of polyurethane is reacted by a certain percentage by MDI, modification MDI, polyester polyol, polyether glycol and to make, and it is characterized in that its prescription (by weight) is:
MDI 25-35％
Modification MDI 10-25%
Polyester polyol 5-20%
Polyether glycol 30-50%
2, a kind of flocking glue of polyurethane according to claim 1 is characterized in that its prescription (by weight) is:
MDI 35％
Modification MDI 12.5%
Polyester polyol 11.3%
Polyether glycol 41.2%
3, a kind of flocking glue of polyurethane according to claim 1 is characterized in that its prescription (by weight) is:
MDI 32.9％
Modification MDI 14.5%
Polyester polyol 9.5%
Polyether glycol 43%
4, according to the preparation method of the described flocking glue of polyurethane of claim 1-3, it is characterized in that may further comprise the steps: (1) mixes MDI and modification MDI, (2) pre-polymerization: the polyether polyatomic alcohol component that will make isocyanic ester blending ingredients and dehydration is reacted, (3) polymerization: the component that step 2 is made and the polyester polyol of dehydration react, and (4) transfer sticking: the viscosity of adjusting flocking glue of polyurethane.
5,, it is characterized in that described polyester polyol is that monomer is the diprotic acid and the dibasic alcohol polymeric of 4-6 carbon, the straight chain polyvalent alcohol of molecular weight between 1500-2500 according to the described a kind of flocking glue of polyurethane of claim 1-3.
6,, it is characterized in that described polyethers is the straight chain polyvalent alcohol of molecular weight 1000-2000 according to the described a kind of flocking glue of polyurethane of claim 1-3.
7, the preparation method of a kind of flocking glue of polyurethane according to claim 4 is characterized in that the processing parameter of pre-polymerization is: temperature of reaction (T)=55～75 ℃; Reaction times (t)=0.5～1 hour.
8, the preparation method of a kind of flocking glue of polyurethane according to claim 4 is characterized in that the polymeric processing parameter is: temperature of reaction (T)=60～80 ℃; Reaction times (t)=1～2 hour.
9, the preparation method of a kind of flocking glue of polyurethane according to claim 4, it is characterized in that transferring the processing parameter when sticking to be: temperature of reaction (T)=70～85 ℃, flocking glue of polyurethane is controlled at 10～17%, and viscosity is adjusted to: 4000～8000mpa.s/25 ℃.
10, according to the described a kind of flocking glue of polyurethane of claim 1-3, it is characterized in that the application of this flocking glue of polyurethane in static flocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100294063A CN100387670C (en) | 2005-09-05 | 2005-09-05 | Flocking glue of polyurethane, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100294063A CN100387670C (en) | 2005-09-05 | 2005-09-05 | Flocking glue of polyurethane, preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760305A true CN1760305A (en) | 2006-04-19 |
| CN100387670C CN100387670C (en) | 2008-05-14 |
Family
ID=36706533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100294063A Expired - Fee Related CN100387670C (en) | 2005-09-05 | 2005-09-05 | Flocking glue of polyurethane, preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100387670C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408865A (en) * | 2011-09-27 | 2012-04-11 | 英特沃斯(北京)科技有限公司 | Double-component polyurethane adhesive and preparation method thereof |
| CN109593495A (en) * | 2018-11-30 | 2019-04-09 | 东莞市合森纺织品有限公司 | A kind of polyvinyl chloride flocked fabric and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5493192A (en) * | 1977-12-27 | 1979-07-24 | Toyoda Gosei Kk | Electrostatically flocking product |
| US4377645A (en) * | 1980-12-29 | 1983-03-22 | W. R. Grace & Co. | Dimensionally-stable polyurethane sponge and sponge-forming prepolymer |
| CN1048720A (en) * | 1989-07-13 | 1991-01-23 | 烟台市福山区化学工业研究所 | Polyurethane binder |
| JP3620419B2 (en) * | 2000-07-21 | 2005-02-16 | 東亞合成株式会社 | Moisture-curing reactive hot melt adhesive for weatherstrip flocking, weatherstriped weatherstrip and method for producing the same |
-
2005
- 2005-09-05 CN CNB2005100294063A patent/CN100387670C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408865A (en) * | 2011-09-27 | 2012-04-11 | 英特沃斯(北京)科技有限公司 | Double-component polyurethane adhesive and preparation method thereof |
| CN102408865B (en) * | 2011-09-27 | 2013-10-23 | 英特沃斯(北京)科技有限公司 | Double-component polyurethane adhesive and preparation method thereof |
| CN109593495A (en) * | 2018-11-30 | 2019-04-09 | 东莞市合森纺织品有限公司 | A kind of polyvinyl chloride flocked fabric and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100387670C (en) | 2008-05-14 |
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Granted publication date: 20080514 Termination date: 20110905 |