CN103450437B - A kind of organic siloxane modified aqueous polyurethane prepares the method for wool softening agent - Google Patents
A kind of organic siloxane modified aqueous polyurethane prepares the method for wool softening agent Download PDFInfo
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- CN103450437B CN103450437B CN201310380454.1A CN201310380454A CN103450437B CN 103450437 B CN103450437 B CN 103450437B CN 201310380454 A CN201310380454 A CN 201310380454A CN 103450437 B CN103450437 B CN 103450437B
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Abstract
The invention provides a kind of method that organic siloxane modified aqueous polyurethane prepares wool softening agent, preparation process is as follows: tolylene diisocyanate (TDI), polypropylene oxide glycol (PPG-1000), 1,4-butyleneglycol (BDO), butanone and catalyst dibutyltin dilaurylate, 1.5 ~ 2.5h is reacted at 75 ~ 90 DEG C, add after dimethylol propionic acid (DMPA) continues reaction 2.5 ~ 6h, add triethylamine neutralization, then add epoxysilicone stirring reaction 0.5 ~ 1h and obtain organic siloxane modified performed polymer; By this performed polymer at 5 ~ 20 DEG C, add deionized water and can obtain performed polymer dispersion liquid; By mass percentage concentration be 5 ~ 15% ethylenediamine solution be added drop-wise in above-mentioned performed polymer dispersion liquid, stirring reaction 2h, can obtain organic siloxane modified aqueous polyurethane wool softening agent.Use organo-siloxane to the waterborne polyurethane modified softening agent obtained in invention, there is better stability and film-forming properties, the better pliability of fabric and outward appearance can be given.
Description
Technical field
The present invention relates to a kind of preparation method of fabric finishing agent, particularly a kind of preparation method of wool softening agent.
Background technology
Because softening agent can give fabric with soft, comfortable feel, therefore can improve quality and the value added of fabric, become the main auxiliary agent of after-finishing of textile products.Along with the raising of people's living standard, the enhancing of the awareness of environment protection and health, also more and more higher to the requirement of weaving special material, require that fabric has certain softness, the characteristic such as crease-resistant, also more and more higher to the quality requirements of softening agent, this has made the fast development of softening agent kind also shortly.
Silicone softening agent is emulsion or the microemulsion of polysiloxane and derivative thereof, and fabric can be made to have good softness and level and smooth feel.But this kind of softening agent is difficult to grasp due to its emulsion intercalation method, often occurs layering, floating oil and demulsifying phenomenon in storage, transportation, make the defects such as oil mark fabric occurring be difficult to remove.
Summary of the invention
The object of this invention is to provide a kind of method that organic siloxane modified aqueous polyurethane prepares wool softening agent.
The present invention is to solve the defect that the poor stability of existing silicone softening agent existence, the rear appearance of fabrics of arrangement are not good.
The invention provides a kind of method that organic siloxane modified aqueous polyurethane prepares wool softening agent, step is as follows:
(1) preparation of performed polymer dispersion liquid: tolylene diisocyanate (TDI), polypropylene oxide glycol (PPG-1000), 1,4-butyleneglycol (BDO) and solvent butanone, under catalyst dibutyltin dilaurylate existent condition, stirring reaction 1.5 ~ 2.5h at 75 ~ 90 DEG C, add dimethylol propionic acid (DMPA) and continue reaction 2.5 ~ 6h afterwards, add triethylamine neutralization, regulate PH=7 ~ 9, then add epoxysilicone stirring reaction 0.5 ~ 1h and obtain organic siloxane modified performed polymer; By this performed polymer at 5 ~ 20 DEG C, add deionized water and can obtain performed polymer dispersion liquid;
(2) mass percentage concentration is that the ethylenediamine solution of 5 ~ 15% is added drop-wise in above-mentioned performed polymer dispersion liquid as chainextender by the preparation of organic siloxane modified aqueous polyurethane: at 5 ~ 20 DEG C, stirring reaction 2h.
The mol ratio of described raw material TDI, PPG-1000 and BDO is 3 ~ 5:1:0.8 ~ 1, the mol ratio of triethylamine, DMPA and TDI is 0.9 ~ 1.1:1:4 ~ 6, the mol ratio of epoxysilicone and DMPA is 1:5 ~ 10, and the mol ratio of quadrol and PPG-1000 is 0.8 ~ 1.0:1.
The beneficial effect that the present invention produces is: by carrying out waterborne polyurethane modified to organosilicon end group, the organic silicon polyurethane softening agent made has good stability, and its film-forming properties at fabric face improves, and can give the better pliability of fabric and outward appearance.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
The invention provides a kind of method that organic siloxane modified aqueous polyurethane prepares wool softening agent, step is as follows: the preparation of (1) performed polymer dispersion liquid: in a reservoir, add tolylene diisocyanate (TDI), polypropylene oxide glycol (PPG-1000), 1, 4-butyleneglycol (BDO) and solvent butanone, three's mol ratio is 5:1:1, under catalyst dibutyltin dilaurylate existent condition, stirring reaction 1.5 ~ 2.5h at 75 ~ 90 DEG C, add dimethylol propionic acid (DMPA) and continue reaction 2.5 ~ 6h afterwards, add triethylamine neutralization, regulate PH=7 ~ 9, wherein triethylamine, the mol ratio of DMPA and TDI is 1:1:5, then add epoxysilicone stirring reaction 0.5 ~ 1h and obtain organic siloxane modified performed polymer, the mol ratio of epoxysilicone and DMPA is 1:8, by this performed polymer at 5 ~ 20 DEG C, add deionized water and can obtain performed polymer dispersion liquid,
(2) preparation of organic siloxane modified aqueous polyurethane: at 5 ~ 20 DEG C, using mass percentage concentration be 5 ~ 15% ethylenediamine solution be added drop-wise in above-mentioned performed polymer dispersion liquid as chainextender, stirring reaction 2h, wherein the mol ratio of quadrol and PPG-1000 is 1:1.
Claims (1)
1. organic siloxane modified aqueous polyurethane prepares a method for wool softening agent, it is characterized in that preparation process is as follows:
(1) preparation of performed polymer dispersion liquid: tolylene diisocyanate TDI, polypropylene oxide glycol PPG-1000,1,4-butyleneglycol BDO and solvent butanone, under catalyst dibutyltin dilaurylate existent condition, stirring reaction 1.5 ~ 2.5h at 75 ~ 90 DEG C, reaction 2.5 ~ 6h is continued after adding dimethylol propionic acid DMPA, add triethylamine neutralization, regulate PH=7 ~ 9, then add epoxysilicone stirring reaction 0.5 ~ 1h and obtain organic siloxane modified performed polymer; By this performed polymer at 5 ~ 20 DEG C, add deionized water and can obtain performed polymer dispersion liquid;
(2) mass percentage concentration is that the ethylenediamine solution of 5 ~ 15% is added drop-wise in above-mentioned performed polymer dispersion liquid as chainextender by the preparation of organic siloxane modified aqueous polyurethane: at 5 ~ 20 DEG C, stirring reaction 2h;
The mol ratio of raw material TDI, PPG-1000 and BDO is 3 ~ 5:1:0.8 ~ 1, the mol ratio of triethylamine, DMPA and TDI is 0.9 ~ 1.1:1:4 ~ 6, the mol ratio of epoxysilicone and DMPA is 1:5 ~ 10, and the mol ratio of quadrol and PPG-1000 is 0.8 ~ 1.0:1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310380454.1A CN103450437B (en) | 2013-08-28 | 2013-08-28 | A kind of organic siloxane modified aqueous polyurethane prepares the method for wool softening agent |
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| CN201310380454.1A CN103450437B (en) | 2013-08-28 | 2013-08-28 | A kind of organic siloxane modified aqueous polyurethane prepares the method for wool softening agent |
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| CN103450437A CN103450437A (en) | 2013-12-18 |
| CN103450437B true CN103450437B (en) | 2015-10-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951809B (en) * | 2014-04-23 | 2016-03-16 | 西安工程大学 | A kind of preparation method of polyurethane-modified organosilicon multiple copolymer fabric softener |
| CN104448206B (en) * | 2014-12-25 | 2017-10-10 | 广州冠志新材料科技有限公司 | A kind of environment-friendly type strippable water-soluble polyurethane resin and its preparation method and application |
| CN107974837B (en) * | 2017-12-06 | 2020-04-24 | 佛山市顺德区德美瓦克有机硅有限公司 | Polyurethane modified organic silicon copolymer containing quaternary ammonium salt and preparation method thereof |
| CN108823988B (en) * | 2018-07-10 | 2021-02-02 | 江苏阳光股份有限公司 | Method for preparing washable shape-preserving woolen fabric clothes |
| CN115124691B (en) * | 2022-08-02 | 2024-01-23 | 上海华峰新材料研发科技有限公司 | Water-based polyurethane and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914343A (en) * | 2010-08-26 | 2010-12-15 | 合肥工业大学 | Method for preparing organic siloxane modified aqueous polyurethane coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101914343A (en) * | 2010-08-26 | 2010-12-15 | 合肥工业大学 | Method for preparing organic siloxane modified aqueous polyurethane coating |
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