CN101423596A - Production formula of water resistant thermoplastic urethane resin - Google Patents
Production formula of water resistant thermoplastic urethane resin Download PDFInfo
- Publication number
- CN101423596A CN101423596A CNA2008101948186A CN200810194818A CN101423596A CN 101423596 A CN101423596 A CN 101423596A CN A2008101948186 A CNA2008101948186 A CN A2008101948186A CN 200810194818 A CN200810194818 A CN 200810194818A CN 101423596 A CN101423596 A CN 101423596A
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- CN
- China
- Prior art keywords
- water resistant
- resistant thermoplastic
- urethane resin
- thermoplastic urethane
- production formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a formula for producing water resistant thermoplastic polyurethane resin. The formula is applied to a waterproofing coating process and comprises PTMG with the molecular weight of 1,000, 1, 4 butanediol (BDO) and diphenylmethane diisocyanate (pure MDI) with the mass ratio of 100 to 8.5 to 47.5.
Description
Technical field:
The present invention relates to a kind of production formula of water resistant thermoplastic urethane resin, be under the jurisdiction of the rubber and plastic field.
Background technology:
Water resistant thermoplastic urethane resin (being called for short TPU), excellent hydrolysis resistance is widely used in water-proof coating technology.Water has two to the effect of TPU, the one, plastification, be that water molecules gets in the macromolecular chain, form hydrogen bond with the polar group in the polymer molecule, make the reaction force attenuation between polymer molecule, tensile strength, tear strength and polishing machine descend, and this process is a reversible, the drying dehydration can recover original performance; The 2nd, the Degradation of water, promptly chemical degradation has taken place in TPU, and this process is irreversible, also is that harm is maximum.TPU can be divided into polyester type and polyether-type, and both hydrolytic processes are different.Because the ester group facile hydrolysis, the hydrolytic action of polyester type TPU shows as backbone breaking, molecular weight reduction, tensile strength and elongation and sharply descends; And polyether-type TPU, because ether and carbamate groups hydrolysis, so hydrolytic action shows as crosslinked slowly fracture, tensile strength descends slowly, elongation takes the lead in increasing then and just descends.In sum, polyether-type TPU(Thermoplastic polyurethanes) (TPU) has water tolerance preferably, and this also is a theoretical foundation of the present invention, and oligomer polyol adopts polyether glycol (this project adopts polytetramethylene glycol, also claims PTMG).
Summary of the invention:
The invention provides a kind of production formula of water resistant thermoplastic urethane resin.Performance index:
The production formula of a kind of water resistant thermoplastic urethane resin of the present invention is: molecular weight is 1000 polytetramethylene glycol (PTMG), 1,4 butyleneglycol (BDO), diphenylmethanediisocyanate (pure MDI), and three's mass ratio is pressed 100:8.5:47.5.
Embodiment:
The operations such as metering, conveying, mixing, reaction and fusion TPU granulation of raw material are formed a processing line, and technology comprises four parts: the material storaging tank (change batch can) of maintenance certain temperature, casting molding machine (metering and conveying are with just mixed), double screw rod extruder (mass transport is mixed and and chemical reaction), High-Pressure Water dicing machine (centrifugal drying and sizing screen and automatic packing).
Claims (1)
1, a kind of production formula of water resistant thermoplastic urethane resin: molecular weight is 1000 polytetramethylene glycol (PTMG), 1,4 butyleneglycol (BDO), diphenylmethanediisocyanate (pure MDI), and three's mass ratio is pressed 100:8.5:47.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101948186A CN101423596A (en) | 2008-11-10 | 2008-11-10 | Production formula of water resistant thermoplastic urethane resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101948186A CN101423596A (en) | 2008-11-10 | 2008-11-10 | Production formula of water resistant thermoplastic urethane resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101423596A true CN101423596A (en) | 2009-05-06 |
Family
ID=40614494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101948186A Pending CN101423596A (en) | 2008-11-10 | 2008-11-10 | Production formula of water resistant thermoplastic urethane resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101423596A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532472A (en) * | 2012-01-01 | 2012-07-04 | 于龙洲 | Formulation of dedicated urethane resin for waterproof coating |
| CN105520204A (en) * | 2015-12-25 | 2016-04-27 | 广东宏杰内衣实业有限公司 | Highly-elastic seamless bone attachment brassiere |
| CN109337040A (en) * | 2018-08-16 | 2019-02-15 | 汕头市宏隆实业有限公司 | It is a kind of for thermo-plastic polyurethane's micelle of toothbrush bristle and its preparation |
-
2008
- 2008-11-10 CN CNA2008101948186A patent/CN101423596A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532472A (en) * | 2012-01-01 | 2012-07-04 | 于龙洲 | Formulation of dedicated urethane resin for waterproof coating |
| CN105520204A (en) * | 2015-12-25 | 2016-04-27 | 广东宏杰内衣实业有限公司 | Highly-elastic seamless bone attachment brassiere |
| CN109337040A (en) * | 2018-08-16 | 2019-02-15 | 汕头市宏隆实业有限公司 | It is a kind of for thermo-plastic polyurethane's micelle of toothbrush bristle and its preparation |
| CN109337040B (en) * | 2018-08-16 | 2020-08-21 | 汕头市宏隆实业有限公司 | Thermoplastic polyurethane colloidal particles for toothbrush bristles and preparation thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Open date: 20090506 |