CN102477274A - Polyurethane thermosol adhesive - Google Patents
Polyurethane thermosol adhesive Download PDFInfo
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- CN102477274A CN102477274A CN2010105674801A CN201010567480A CN102477274A CN 102477274 A CN102477274 A CN 102477274A CN 2010105674801 A CN2010105674801 A CN 2010105674801A CN 201010567480 A CN201010567480 A CN 201010567480A CN 102477274 A CN102477274 A CN 102477274A
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Abstract
The invention relates to a polyurethane thermosol adhesive, which comprises the following components by weight percentage: 50-70 % of polymethylenepolyphenyl polyisocyanate, 20-30% of crystalline polyol, 1-2% of terminating agent, 5-15% of viscosity-increasing resin, 5-10% of filler, 0.001-0.01% of acidic stabilizer, and 0.02-0.1% of catalyst for wet-solidifying reaction. The polyurethane thermosol adhesive has the advantages of excellent initial strength, excellent final strength, and low coating temperature and melt viscosity.
Description
Technical field
The present invention relates to a kind of sizing agent, belong to the sizing agent field, particularly a kind of polyurethane thermosol.
Background technology
Thermosol is a kind ofly under melting condition, to be coated with, and produces the sizing agent of intensity through sclerosis or crystallization.The coating of thermosol does not need solvent, and the market demand of thermosol is in continuous increase.
For general purpose thermosol, it is normally thermoplastic, but an one of which subject matter is that its infiltration for water and solvent is also very responsive.In the curing thermosol, the most frequently used reaction is exactly the moisture curing of isocyanic ester.Use chainextender to have following drawback: lower fusion speed; Low initial strength: the open hour are longer: package stability is relatively poor; In 90-100 ℃ use temperature scope, the thermostability of sizing agent is relatively poor.Therefore, still there is certain drawback in the hard segment content that increases urethane by chainextender in wet solidified polyurethane thermosol.Wet solidified polyurethane thermosol by the preparation of this type material not only can harden by rapid crystallization, produce intensity just, and the internal cohesive energy of its cured product is also higher relatively, so the whole intensity after this thermosol completely solidified also is very high.Though some technology has successfully been prepared wet solidified polyurethane thermosol; But mostly the POLYMETHYLENE POLYPHENYLISOCYANATE raw material that it adopted is expensive diphenylmethanediisocyanate; And its use properties is uneven, shows that mainly just intensity is low, the open hour are short, the slow aspect of curing speed.
Summary of the invention
The technical problem that the present invention will solve is: a kind of new green environment protection sizing agent is provided, and said sizing agent has excellent first intensity and whole intensity, lower coating temperature and melting viscosity, and the advantage of good thermotolerance and package stability.
In order to solve the problems of the technologies described above, the present invention provides a kind of polyurethane thermosol, and it comprises following composition by weight percentage:
Poly methylene poly phenyl poly isocyanate: 50-70%
Crystalline polymer polyvalent alcohol: 20-30%
End-capping reagent: 1-2%
Increase glutinous resin: 5-15%
Filler: 5-10%
Acid stabilizer: 0.001-0.01%
Moisture curing catalysts diether: 0.02-0.1%.
Described polyurethane thermosol comprises following composition by weight percentage: described poly methylene poly phenyl poly isocyanate accounts for 55%, the crystalline polymer polyvalent alcohol accounts for 25%, end-capping reagent accounts for 1%, increase that glutinous resin accounts for 5%, filler accounts for 5%, acid stabilizer accounts for 0.001%, moisture curing catalysts diether accounts for 0.02%.
Described polyurethane thermosol comprises following composition by weight percentage: described poly methylene poly phenyl poly isocyanate accounts for 65%, the crystalline polymer polyvalent alcohol accounts for 28%, end-capping reagent accounts for 2%, increase that glutinous resin accounts for 15%, filler accounts for 10%, acid stabilizer accounts for 0.01%, moisture curing catalysts diether accounts for 0.1%.
Embodiment
Below, with embodiment the present invention is made more detailed description.These embodiment only are the descriptions to best mode for carrying out the invention, scope of the present invention are not had any restriction.
Embodiment 1
This embodiment is processed by following composition by weight percentage: poly methylene poly phenyl poly isocyanate: 50-70%, crystalline polymer polyvalent alcohol: 20-30%, end-capping reagent: 1-2%, increase glutinous resin: 5-15%, filler: 5-10%, acid stabilizer: 0.001-0.01%, moisture curing catalysts diether: 0.02-0.1%; Described crystalline polymer polyvalent alcohol is for gathering hexanodioic acid 1; 6-pinakon esterdiol, gather hexanodioic acid 1; 4-butanediol ester glycol, polyethylene glycol adipate glycol, polycaprolactone or gather 2; 3-dimethyl--2; 3-butyleneglycol (40～60 ℃ of Tcs, molecular weight 1500-3000): described end-capping reagent is organoalkoxysilane or vinyltrimethoxy silane; Described increase glutinous resin be not with isocyanic ester radical reaction, and hydrogenated rosin glyceride, terpine resin, t-butyl styrene or the terpenes-phenol copolymer resins that has good consistency with matrix resin; Described filler is precipitated silica, superfine silicon dioxide or the active carbon white that can not have a negative impact to the melt stability and the package stability of constituent; Described acid stabilizer is phosphoric acid or Benzoyl chloride 99min..
Embodiment 2
Compare with embodiment 1, this embodiment is processed by following composition by weight percentage: described poly methylene poly phenyl poly isocyanate accounts for 55%, the crystalline polymer polyvalent alcohol accounts for 25%, end-capping reagent accounts for 1%, increase that glutinous resin accounts for 5%, filler accounts for 5%, acid stabilizer accounts for 0.001%, moisture curing catalysts diether accounts for 0.02%.
Embodiment 3
Compare with embodiment 1; This embodiment is processed by following composition by weight percentage: among the preparation method of described polyurethane thermosol, described poly methylene poly phenyl poly isocyanate accounts for 65%, the crystalline polymer polyvalent alcohol accounts for 28%, end-capping reagent accounts for 2%, increase that glutinous resin accounts for 15%, filler accounts for 10%, acid stabilizer accounts for 0.01%, moisture curing catalysts diether accounts for 0.1%.
Claims (3)
1. polyurethane thermosol, it is characterized in that: it comprises following composition by weight percentage:
Poly methylene poly phenyl poly isocyanate: 50-70%
Crystalline polymer polyvalent alcohol: 20-30%
End-capping reagent: 1-2%
Increase glutinous resin: 5-15%
Filler: 5-10%
Acid stabilizer: 0.001-0.01%
Moisture curing catalysts diether: 0.02-0.1%.
2. polyurethane thermosol according to claim 1 is characterized in that: it comprises following composition by weight percentage: described poly methylene poly phenyl poly isocyanate accounts for 55%, the crystalline polymer polyvalent alcohol accounts for 25%, end-capping reagent accounts for 1%, increase that glutinous resin accounts for 5%, filler accounts for 5%, acid stabilizer accounts for 0.001%, moisture curing catalysts diether accounts for 0.02%.
3. according to the described polyurethane thermosol of claim, it is characterized in that: it comprises following composition by weight percentage: described poly methylene poly phenyl poly isocyanate accounts for 65%, the crystalline polymer polyvalent alcohol accounts for 28%, end-capping reagent accounts for 2%, increase that glutinous resin accounts for 15%, filler accounts for 10%, acid stabilizer accounts for 0.01%, moisture curing catalysts diether accounts for 0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105674801A CN102477274A (en) | 2010-11-26 | 2010-11-26 | Polyurethane thermosol adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105674801A CN102477274A (en) | 2010-11-26 | 2010-11-26 | Polyurethane thermosol adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102477274A true CN102477274A (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105674801A Pending CN102477274A (en) | 2010-11-26 | 2010-11-26 | Polyurethane thermosol adhesive |
Country Status (1)
| Country | Link |
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| CN (1) | CN102477274A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107011853A (en) * | 2017-05-31 | 2017-08-04 | 烟台智本知识产权运营管理有限公司 | A kind of quick-setting polyurethane hot melt and preparation method thereof |
| CN112375533A (en) * | 2020-11-27 | 2021-02-19 | 帅山 | Pressure-maintaining-free reactive polyurethane hot melt adhesive and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752169A (en) * | 2005-09-28 | 2006-03-29 | 东北林业大学 | Wet solidified polyurethane thermosol and preparing process thereof |
-
2010
- 2010-11-26 CN CN2010105674801A patent/CN102477274A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752169A (en) * | 2005-09-28 | 2006-03-29 | 东北林业大学 | Wet solidified polyurethane thermosol and preparing process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107011853A (en) * | 2017-05-31 | 2017-08-04 | 烟台智本知识产权运营管理有限公司 | A kind of quick-setting polyurethane hot melt and preparation method thereof |
| CN112375533A (en) * | 2020-11-27 | 2021-02-19 | 帅山 | Pressure-maintaining-free reactive polyurethane hot melt adhesive and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |