CN101333425A - Polyurethane binder, preparation method and application thereof - Google Patents
Polyurethane binder, preparation method and application thereof Download PDFInfo
- Publication number
- CN101333425A CN101333425A CNA2008100402004A CN200810040200A CN101333425A CN 101333425 A CN101333425 A CN 101333425A CN A2008100402004 A CNA2008100402004 A CN A2008100402004A CN 200810040200 A CN200810040200 A CN 200810040200A CN 101333425 A CN101333425 A CN 101333425A
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- polyurethane binder
- chainextender
- preparation
- polyvalent alcohol
- isocyanic ester
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- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to polymer material field and in particular relates to polyurethane adhesive, the preparation method and application thereof. The polyurethane adhesive contains isocyanate, dehydrated polylol, chain extender, etc. The polyurethane adhesive is characterized in that dosages of the materials in the formula are that: 10-30%of isocyanate, 40-79.9%of dehydrated polylol, 10-30%of chain extender and 0.11.0%of catalyzer. Compared with prior art, the invention overcomes the defects that common polyurethane adhesives will become poor in water tolerance after long time use in external environment, which leads to the decline of cohesive property. The polyurethane adhesive is excellent in water tolerance and weatherability and will not decline in cohesive property after long time use in external environment and is good in bonding firmness. The polyurethane adhesive has double components and is small in viscosity and moderate in curing speed and can be used under room temperature. The polyurethane adhesive is low in cost and high in technical content and is widely applicable.
Description
[technical field]
The invention relates to polymeric material field, specifically a kind of polyurethane binder and its production and use.
[background technology]
To be a class constitute-(AB) n-type segmented copolymer by soft, hard section urethane, because of it has some fundamental characteristics of rubber and plastics simultaneously, the specific physical performance that again other macromolecule polymeric material is arranged and do not had, as stronger viscosifying power, higher physical strength, good heat-resistance, low temperature properties and weathering resistance or the like, so polyurethane binder material is a kind of novel material with fastest developing speed, that purposes is the widest, but water tolerance is relatively poor.
[summary of the invention]
The purpose of the invention is to overcome the deficiencies in the prior art, according to Principles of Chemical Engineering, with isocyanic ester, dehydration polyvalent alcohol, chainextender and little amount of catalyst are reacted, after making isocyanate prepolymer component and polyol component, again two components mixed, use, vulcanize and obtain polyurethane binder.
For achieving the above object, design a kind of polyurethane binder, comprise raw materials such as isocyanic ester, dehydration polyvalent alcohol, chainextender.It is characterized in that its prescription usage percentage is: isocyanic ester is 10%～30%, and the dehydration polyvalent alcohol is 40%～79.9%, and chainextender is 10%～30%, catalyzer 0.1%～1.0%;
Described polyurethane binder prescription usage percentage is: isocyanic ester is 23.5%, and the dehydration polyvalent alcohol is 65%, and chainextender is 11%, catalyzer 0.5%;
Described polyurethane binder prescription usage percentage is: isocyanic ester is 25.5%, and the dehydration polyvalent alcohol is 63%, and chainextender is 11%, catalyzer 0.5%;
Its processing step is made up of following: by isocyanic ester, dehydration polyvalent alcohol, chainextender and little amount of catalyst are reacted (1), and (2) make isocyanate prepolymer component and polyol component, (3) mix, (4) use, (5) sulfuration, (6) make polyurethane binder; By isocyanic ester, dehydration polyvalent alcohol, the processing parameter that chainextender and little amount of catalyst are reacted is: temperature of reaction (T)=65～90 ℃; Chain extension time (t)=5～30 minute; Reaction times (t)=1～3 hour; The blended processing parameter is: temperature of reaction (T)=5～30 ℃; Reaction times (t)=0.5～3 hour.The processing parameter that uses is: temperature of reaction (T)=5～30 ℃; Reaction times (t)=0.5～3 hour; The sulfurized processing parameter is: temperature of reaction (T)=5～30 ℃; Reaction times (t)=16～24 hour; The blended processing condition are: whipped state mixes down.
Polyurethane binder is mainly used in the bonding of architectural pottery wall tile and metal material.
The invention advantage compared with prior art is that it has overcome general polyurethane binder product and can poor water resistance take place and cause adhesive property decline shortcoming in the medium-term and long-term use of external environment, its water tolerance and weather resistance are fine, can adhesive property not take place medium-term and long-term use of external environment descends, and adhesive fastness is very good, the present invention is a two-pack, viscosity is less, can use at normal temperatures, and curing speed is moderate.Cost is low, and is with high content of technology, applied widely.
[description of drawings]
Fig. 1 is the process flow sheet of the invention;
Appointment Fig. 1 is a Figure of abstract;
Referring to Fig. 1: 1 isocyanic ester, dehydration polyvalent alcohol, chainextender and little amount of catalyst
2 isocyanate prepolymer components, polyol component
3 mix
4 use
5 sulfurations
6 polyurethane binder
[specific embodiment]
With isocyanic ester, dehydration polyvalent alcohol, chainextender and little amount of catalyst are reacted, make isocyanate prepolymer component and polyol component after, again two components mixed, use, vulcanize and obtain The PU products polyurethane binder.This manufacturing technology is to implement easily to this professional people.
Table 1 is the prescription of polyurethane binder:
| Title | Isocyanic ester | The dehydration polyvalent alcohol | Chainextender | Catalyzer |
| Usage percentage | 10～30 | 40～79.9 | 10～30 | 0.1～1 |
Table 2 is the better formula of polyurethane binder:
| Title | Isocyanic ester | The dehydration polyvalent alcohol | Chainextender | Catalyzer |
| Usage percentage | 23.5 | 65 | 11 | 0.5 |
Table 3 is the optimum formula of polyurethane binder:
| Title | Isocyanic ester | The dehydration polyvalent alcohol | Chainextender | Catalyzer |
| Usage percentage | 25.5 | 63 | 11 | 0.5 |
Preparation method of the present invention fills a prescription according to the above ratio 25.5g isocyanic ester and 63g dehydration polyvalent alcohol 11g chainextender and 0.5g catalyzer is added in the reactor, under whipped state, be warming up to 75 ℃, chain extension 30 minutes, reacted 1.5 hours, make ratio of component and be 100: 100 isocyanate prepolymer and polyvalent alcohol, and then these two components are mixed, use, vulcanized and obtain 150g polyurethane binder.
Claims (10)
1, a kind of polyurethane binder comprises raw materials such as isocyanic ester, dehydration polyvalent alcohol, chainextender.It is characterized in that its prescription usage percentage is: isocyanic ester is 10%～30%, and the dehydration polyvalent alcohol is 40%～79.9%, and chainextender is 10%～30%, catalyzer 0.1%～1.0%.
2, a kind of polyurethane binder as claimed in claim 1, it is characterized in that its prescription usage percentage is: isocyanic ester is 23.5%, and the dehydration polyvalent alcohol is 65%, and chainextender is 11%, catalyzer 0.5%.
3, a kind of polyurethane binder as claimed in claim 1, it is characterized in that its prescription usage percentage is: isocyanic ester is 25.5%, and the dehydration polyvalent alcohol is 63%, and chainextender is 11%, catalyzer 0.5%.
4, a kind of preparation method of polyurethane binder, it is characterized in that its processing step is made up of following: (1) is by isocyanic ester, dehydration polyvalent alcohol, chainextender and little amount of catalyst are reacted, (2) make isocyanate prepolymer component and polyol component, (3) mix, (4) use, (5) sulfuration, (6) make polyurethane binder.
5, the preparation method of a kind of polyurethane binder as claimed in claim 4 is characterized in that the processing parameter that chainextender and little amount of catalyst are reacted is: temperature of reaction (T)=65～90 ℃ by isocyanic ester, dehydration polyvalent alcohol; Chain extension time (t)=5～30 minute; Reaction times (t)=1～3 hour.
6, the preparation method of a kind of polyurethane binder as claimed in claim 4 is characterized in that the blended processing parameter is: temperature of reaction (T)=5～30 ℃; Reaction times (t)=0.5～3 hour.
7, the preparation method of a kind of polyurethane binder as claimed in claim 4 is characterized in that the processing parameter that uses is: temperature of reaction (T)=5～30 ℃; Reaction times (t)=0.5～3 hour.
8, the preparation method of a kind of polyurethane binder as claimed in claim 4 is characterized in that the sulfurized processing parameter is: temperature of reaction (T)=5～30 ℃; Reaction times (t)=16～24 hour.
9, the preparation method of a kind of polyurethane binder as claimed in claim 4 is characterized in that the blended processing condition are: whipped state mixes down.
10, the application of the described a kind of polyurethane binder of claim 1 is characterized in that polyurethane binder is mainly used in the bonding of architectural pottery wall tile and metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100402004A CN101333425A (en) | 2008-07-04 | 2008-07-04 | Polyurethane binder, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100402004A CN101333425A (en) | 2008-07-04 | 2008-07-04 | Polyurethane binder, preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101333425A true CN101333425A (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100402004A Pending CN101333425A (en) | 2008-07-04 | 2008-07-04 | Polyurethane binder, preparation method and application thereof |
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| CN (1) | CN101333425A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295907A (en) * | 2010-06-24 | 2011-12-28 | 上海海鹰粘接科技有限公司 | Adhesive special for elevator and preparation method and application thereof |
| CN106349996A (en) * | 2016-08-30 | 2017-01-25 | 欧振云 | Polyurethane hot melt adhesive for plastics |
| CN106520053A (en) * | 2016-11-11 | 2017-03-22 | 中国科学院山西煤炭化学研究所 | High-performance adhesive and its preparation method and use |
-
2008
- 2008-07-04 CN CNA2008100402004A patent/CN101333425A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295907A (en) * | 2010-06-24 | 2011-12-28 | 上海海鹰粘接科技有限公司 | Adhesive special for elevator and preparation method and application thereof |
| CN102295907B (en) * | 2010-06-24 | 2013-09-04 | 上海海鹰粘接科技有限公司 | Adhesive special for elevator and preparation method and application thereof |
| CN106349996A (en) * | 2016-08-30 | 2017-01-25 | 欧振云 | Polyurethane hot melt adhesive for plastics |
| CN106520053A (en) * | 2016-11-11 | 2017-03-22 | 中国科学院山西煤炭化学研究所 | High-performance adhesive and its preparation method and use |
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Application publication date: 20081231 |