CN104449540B - For PVC film surface polyurethane adhesive compositions - Google Patents
For PVC film surface polyurethane adhesive compositions Download PDFInfo
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- CN104449540B CN104449540B CN201410784122.4A CN201410784122A CN104449540B CN 104449540 B CN104449540 B CN 104449540B CN 201410784122 A CN201410784122 A CN 201410784122A CN 104449540 B CN104449540 B CN 104449540B
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Abstract
The present invention relates to a kind of for PVC film surface polyurethane adhesive compositions, be made up of two kinds of components: component A: a kind of polymkeric substance, polymkeric substance obtains according to following preparation method, wherein, raw material is all by weight percentage: polyether glycol 98%-99%, catalyzer 0.5%-1%, antiaging agent 0.5-1%, dewater below 100-110 DEG C ,-0.095MPa to moisture and be less than 0.05%, obtain polymkeric substance; B component: a kind of prepolymer, prepolymer obtains according to following preparation method, a kind of two-component polyurethane adhesive provided by the invention, there is great viscosity, can be used for the bonding on the surfaces such as PVC, do not add any solvent and softening agent, there is toughness adjustable, the advantages such as bonding process is simple.
Description
Technical field
The invention belongs to polyurethane elastomer field, particularly one is used for PVC film surface polyurethane adhesive compositions.
Background technology
Polyurethane adhesive refers to the tackiness agent containing carbamate groups (-NHCOO-) or isocyanate group (-NCO) in molecular chain.Polyurethane adhesive is divided into polyisocyanates and the large class of urethane two.Containing isocyano-(-NCO) and carbamate groups (-NH-COO-) in polyisocyanate molecule chain, therefore polyurethane adhesive shows activity and the polarity of height.This technology utilizes in polyurethane chemistry reaction process, and in molecular chain, hydroxyl is excessive in a large number, does not produce reaction completely, and form super-low-hardness gelinite, this jello has good viscosity.
Summary of the invention
The object of this invention is to provide a kind of for PVC film surface polyurethane adhesive compositions, there is great viscosity, can be used for the bonding on the surfaces such as PVC, do not add any solvent and softening agent, there is toughness adjustable, the advantages such as bonding process is simple.
Of the present invention for PVC film surface polyurethane adhesive compositions, be made up of two kinds of components:
Component A: a kind of polymkeric substance, polymkeric substance obtains according to following preparation method, wherein, raw material all by weight percentage:
Polyether glycol 98%-99%, catalyzer 0.5%-1%, antiaging agent 0.5-1%, dewater to moisture and be less than 0.05%, obtain polymkeric substance below 100-110 DEG C ,-0.095MPa;
B component: a kind of prepolymer, prepolymer obtains according to following preparation method, wherein, raw material all by weight percentage:
By vulcabond 30.5% ?42.0% with polyether glycol 58.0% ?69.5% 70 DEG C ?90 DEG C react 2-3 hour, obtain isocyano-content be 7.5 ?11.5% prepolymer.
During use, component A and B component mixing quality proportioning 100:20 ?30.
Polyether glycol described in component A is functionality 3 or 4, molecular weight be 300 ?6000 polyether glycol.
Massfraction at least containing ethylene oxide-capped polyether glycol in polyether glycol described in component A is 80%.
Catalyzer is dibutyl tin laurate, organo-bismuth or organic zinc wherein one or more.
Antiaging agent be UV ?531, UV ?328, UV ?329,1010 or BHT wherein one or more.
Described vulcabond be MDI ?100, liquefied mdi or containing massfraction be 50%2,4 ’ ?MDI MDI ?50.MDI ?100, liquefied mdi and 2,4 ’ ?MDI be Yantai Wanhua Polyurethane Co., Ltd.
In described B component, polyether glycol adopt functionality be 2, number-average molecular weight be 1000 ?4000 polyether glycol.
Polyether glycol in component A and B component be preferably PPG1000, PPG2000, PPG3000, PPG4000, NT ?403A, SA ?380, one or more in PPG330N or PPG3600.PPG1000, PPG2000, PPG3000, PPG4000, NT ?403A, SA ?380, PPG330N or PPG3600 manufacturer is Shandong Lanxing Dongda Chemical Co., Ltd.
Described vulcabond is the diphenylmethanediisocyanate of diphenylmethanediisocyanate and modification thereof.
Isocyanate index R=NCO/OH 0.3 ?0.6 scope in.Namely the mol ratio of isocyano and hydroxyl be 0.3 ?0.6.
This tackiness agent is formed by terminal hydroxy group end-blocking, and this tackiness agent is the prepolymer be made up of isocyanic ester and polyether glycol of a component wherein, and another component is polymeric constituent.
Component A and B component are packed separately, when covering with paint, lacquer, colour wash, etc. PVC film, prepolymer and polymeric constituent with 100:20 ?part by weight between 30 mix, mixing temperature be 25 DEG C ?40 DEG C, it is surperficial then to cover with paint, lacquer, colour wash, etc. PVC film, makes it together with substrate adhesive.
Diphenylmethanediisocyanate described in B component prepolymer can be the diphenylmethanediisocyanate (liquefied mdi) of pure diphenylmethanediisocyanate (MDI ?100), Carbodiimide-Modified, containing 50%2,4 ?MDI MDI ?50.
Compared with prior art, the present invention has following beneficial effect:
One provided by the invention is used for PVC film surface polyurethane adhesive compositions, has great viscosity, can be used for the bonding on the surfaces such as PVC, do not add any solvent and softening agent, have toughness adjustable, the advantages such as bonding process is simple.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Embodiment material therefor:
PPG1000 number-average molecular weight 1000, degree of unsaturation 0.005mmol/g polyoxypropylene dibasic alcohol;
PPG2000 number-average molecular weight 2000, degree of unsaturation 0.005mmol/g polyoxypropylene dibasic alcohol;
PPG3000 number-average molecular weight 3000, degree of unsaturation 0.005mmol/g polyoxypropylene dibasic alcohol;
PPG4000 number-average molecular weight 4000, degree of unsaturation 0.005mmol/g polyoxypropylene dibasic alcohol;
PPG330N number-average molecular weight 5000, proportion of primary OH groups 75%, polyoxypropylene trivalent alcohol;
PPG3600 number-average molecular weight 6000, proportion of primary OH groups 75%, polyoxypropylene trivalent alcohol;
NT ?403A number-average molecular weight 300, polyoxypropylene tetravalent alcohol;
SA ?380 number-average molecular weights 600, polyoxypropylene tetravalent alcohol;
MDI ?1004,4 ’ ?diphenylmethanediisocyanate;
The MDI of liquefied mdi Carbodiimide-Modified;
MDI ?504,4 ’ ?diphenylmethanediisocyanate 50%, 2,4 ’ ?diphenylmethanediisocyanate 50%.
The percentage ratio of following examples is mass percent.
Embodiment 1
Component A: polymeric constituent, obtain according to following preparation method: the polyether glycol of functionality 4, molecular weight 600 (SA ?380) 5%, the polyether glycol (PPG3600) 93% of functionality 3, molecular weight 6000, organic bismuth catalyst 1%, UV ?3290.5%, 10100.5% to prepare according to the method for the invention.
B component: prepolymer, obtain according to following preparation method: be the polyether glycol (PPG1000) 9.5% with 2 functionality, molecular weight 1000, with the polyether glycol 53.7% of 2 functionality, molecular weight 4000 (PPG4000), liquefied mdi 22.1%, 4,4 ’ ?diphenylmethanediisocyanate (MDI ?100) 14.7%, 70 DEG C of reactions 2 hours, obtain the prepolymer that isocyano-content is 9.5%.
Polymkeric substance mixes with the ratio of 100:20 with pre-polymer component, and mixing temperature is 25 DEG C, brushes on PVC film surface.
Embodiment 2
Component A: polymeric constituent: the polyether glycol of the polyether glycol of functionality 4, molecular weight 300 (NT ?403A) 6%, functionality 4, molecular weight 600 (SA ?380) 6%, the polyether glycol (PPG330N) 86% of functionality 3, molecular weight 5000, bismuth catalyst 0.5%, zinc catalyst 0.5%, UV ?3280.5%, 10100.5% to prepare according to the method for the invention.
B component: prepolymer: be with the polyether glycol (PPG3000) 49.3% of 2 functionality, molecular weight 3000, with the polyether glycol (PPG2000) 8.7% of 2 functionality, molecular weight 2000,4,4 ’ ?diphenylmethanediisocyanate (MDI ?100) 21%, MDI ?5021%, 80 DEG C of reactions 2.5 hours, obtain the prepolymer that isocyano-content is 11.5%.
Prepolymer mixes with the ratio of 100:25 with polymeric constituent, and mixing temperature is that 30 DEG C of brushings are on PVC film surface.
Embodiment 3
Component A: polymeric constituent: the polyether glycol of the polyether glycol of functionality 4, molecular weight 300 (NT ?403A) 4%, functionality 4, molecular weight 600 (SA ?380) 11%, the polyether glycol (PPG330N) 83% of functionality 3, molecular weight 5000, zinc catalyst 1%, UV ?5310.5%, 10100.5% to prepare according to the method for the invention.
B component: prepolymer: be the polyether glycol (PPG3000) 69.5% with 2 functionality, molecular weight 3000, liquefied mdi 18.2%, 4,4 ’ ?diphenylmethanediisocyanate (MDI ?100) 12.3%, 90 DEG C of reactions 3 hours, obtain the prepolymer that isocyano-content is 7.5%.
Prepolymer mixes with the ratio of 100:30 with polymeric constituent, and mixing temperature is 40 DEG C, brushes on PVC film surface.
Claims (9)
1., for a PVC film surface polyurethane adhesive compositions, it is characterized in that, be made up of two kinds of components:
Component A: a kind of polymkeric substance, polymkeric substance obtains according to following preparation method, wherein, raw material all by weight percentage:
Polyether glycol 98% ~ 99%, catalyzer 0.5% ~ 1%, antiaging agent 0.5 ~ 1%, at 100 ~ 110 DEG C, below-0.095MPa dewaters to moisture and is less than 0.05%, obtains polymkeric substance;
B component: a kind of prepolymer, prepolymer obtains according to following preparation method, wherein, raw material all by weight percentage:
React 2 ~ 3 hours by vulcabond 30.5% ~ 42.0% and polyether glycol 58.0% ~ 69.5% at 70 DEG C ~ 90 DEG C, obtain the prepolymer that isocyano-content is 7.5 ~ 11.5%;
During use, the quality proportioning of component A and B component mixing is at 100:20-30;
Massfraction at least containing ethylene oxide-capped polyether glycol in polyether glycol described in component A is 80%.
2. polyurethane adhesive compositions according to claim 1, is characterized in that, polyether glycol described in component A is functionality 3 or 4, and molecular weight is the polyether glycol of 300 ~ 6000.
3. polyurethane adhesive compositions according to claim 1, is characterized in that, catalyzer is dibutyl tin laurate, organo-bismuth or organic zinc wherein one or more.
4. polyurethane adhesive compositions according to claim 1, is characterized in that, antiaging agent is UV-531, UV-328, UV-329,1010 or BHT wherein one or more.
5. polyurethane adhesive compositions according to claim 1, is characterized in that, the polyether glycol in component A is one or more in NT-403A, SA-380, PPG330N or PPG3600.
6. polyurethane adhesive compositions according to claim 1, is characterized in that, described vulcabond is MDI-100, liquefied mdi or containing massfraction be 50%2,4 '-MDI MDI-50.
7. polyurethane adhesive compositions according to claim 1, is characterized in that, in described B component, polyether glycol adopts functionality to be 2, and number-average molecular weight is the polyether glycol of 1000 ~ 4000.
8. polyurethane adhesive compositions according to claim 1, is characterized in that, described vulcabond is the diphenylmethanediisocyanate of diphenylmethanediisocyanate and modification thereof.
9. polyurethane adhesive compositions according to claim 1, is characterized in that, isocyanate index R=NCO/OH is in the scope of 0.3-0.6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410784122.4A CN104449540B (en) | 2014-12-16 | 2014-12-16 | For PVC film surface polyurethane adhesive compositions |
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| CN201410784122.4A CN104449540B (en) | 2014-12-16 | 2014-12-16 | For PVC film surface polyurethane adhesive compositions |
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| CN104449540A CN104449540A (en) | 2015-03-25 |
| CN104449540B true CN104449540B (en) | 2016-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11180685B2 (en) | 2016-09-29 | 2021-11-23 | Dic Corporation | Adhesive, laminated film using thereof and polyol composition for adhesive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106381119A (en) * | 2016-09-22 | 2017-02-08 | 佛山慧创正元新材料科技有限公司 | Adhesive for PVC (polyvinyl chloride) thin film and preparation method thereof |
| WO2023216173A1 (en) * | 2022-05-12 | 2023-11-16 | Rohm and Haas Electronic Materials (Shanghai) Ltd. | Two-component polyurethane adhesive composition |
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| JP3964648B2 (en) * | 2001-10-30 | 2007-08-22 | オート化学工業株式会社 | One-part moisture-curing polyurethane adhesive and flooring adhesive method using the same |
| CN103724592B (en) * | 2013-12-09 | 2015-09-30 | 山东一诺威聚氨酯股份有限公司 | For the preparation method of the polyurethane elastomeric compositions of electronics embedding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11180685B2 (en) | 2016-09-29 | 2021-11-23 | Dic Corporation | Adhesive, laminated film using thereof and polyol composition for adhesive |
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