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Preparation method of nanometer in situ composite reaction type organic silicone modified cationic water-based polyurethane and product thereof

A technology of water-based polyurethane and in-situ compounding, which is applied in dyeing, textile and papermaking, fiber treatment, etc., can solve the problems of low stability, wide particle size distribution, large emulsion particle size, etc., and achieve narrow particle size distribution, Good application performance, easy emulsification effect

Inactive Publication Date: 2011-09-28
清河羊绒产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] This method uses completely non-hydrophilic polybutadiene diol as polyurethane soft monomer and adopts non-ionic trifunctional small molecular monomer trimethylol propane as chain extender, which causes the product to be difficult to emulsify, and the emulsion particle size is relatively small. Large, wide particle size distribution and low stability; due to the limitation of the hydrophilicity of monomers used in products, and the high density of intramolecular cross-linking of macromolecules, it is necessary to require strong cationic properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Example 1 The preparation method of nanometer in-situ composite reaction type organosilicon modified cationic waterborne polyurethane of the present invention

[0074] The raw material of this preparation method comprises:

[0075] 1. Basic monomer

[0076] Mixed polyether glycol: 0.1 mol (300 g) of polyethylene glycol with a molecular weight of 3000, and 0.15 mol (300 g) of polypropylene glycol with a molecular weight of 2000

[0077] Diisocyanate: Isophorone diisocyanate 1.0 mol (222.3 g)

[0078] Ionic chain extender: N-phenyldiethanolamine 0.5mol (90.6 g)

[0079] Non-ionic chain extender: 1,4-butanediol 0.1 mol (9.0 g)

[0080] 2. Modified monomer

[0081] Inorganic nano powder: nano silicon dioxide 9.2 g

[0082] Hydroxyalkyl polysiloxane: 0.05 mol (50.0 g) of hydroxyl-terminated polydimethylsiloxane with a molecular weight of 1000

[0083] Aminopolysiloxane: 0 mol (0 g)

[0084] Alkoxysilane coupling agent: 3-mercaptopropyltriethoxysilane 0.2 mol (47.7 g) ...

Embodiment 2

[0121] Example 2 The preparation method of nanometer in-situ composite reaction type organosilicon modified cationic waterborne polyurethane of the present invention

[0122] The raw material of this preparation method comprises:

[0123] 1. Basic monomer

[0124] Mixed polyether diol: 0.1 mol (200 g) of polyethylene glycol with a molecular weight of 2000, and 0.1 mol (300 g) of polytetrahydrofuran diol with a molecular weight of 3000

[0125] Diisocyanate: 1,6-hexamethylene diisocyanate 1.0 mol (168.2 g)

[0126] Ionic chain extender: N-butyldiethanolamine 0.4mol (64.5 g)

[0127] Non-ionic chain extender: 1,6-hexanediol 0.15 mol (17.7 g)

[0128] 2. Modified monomer

[0129] Inorganic nano powder: nano titanium dioxide 13.0 g

[0130] Hydroxyalkyl polysiloxane: 0 mol (0 g)

[0131] Aminopolysiloxane: α,ω-diaminopropyl-terminated polydimethylsiloxane with a molecular weight of 2000 0.05 mol (100.0 g)

[0132] Alkoxysilane coupling agent: N-(β-aminoethyl)-γ-aminopropylt...

Embodiment 3

[0169] Example 3 The preparation method of nanometer in-situ composite reaction type organic silicon modified cationic waterborne polyurethane of the present invention

[0170] The raw material of this preparation method comprises:

[0171] 1. Basic monomer

[0172] Mixed polyether diol: 0.05mol (100g) of polyethylene glycol with a molecular weight of 2000 and 0.05mol (100g) of polyoxyethylene-terminated polypropylene glycol with a molecular weight of 2000

[0173] Diisocyanate: toluene diisocyanate 1.0 mol (174.2g)

[0174] Ionic chain extender: triethanolamine 0.3mol (44.8g)

[0175] Non-ionic chain extender: propylene glycol 0.2mol (15.2g)

[0176] 2. Modified monomer

[0177] Inorganic nano powder: nano silicon dioxide 13g

[0178] Hydroxyalkyl polysiloxane: 0.1mol (200g) of hydroxyl-terminated polydimethylsiloxane with a molecular weight of 2000

[0179] Aminohydrocarbyl polysiloxane: 0.1 mol (300g) of α,ω-diaminopropyl-terminated polydimethylsiloxane with a molecular...

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Abstract

The invention relates to a preparation method of nanometer in situ composite reaction type organic silicone modified cationic water-based polyurethane and a product thereof. The preparation method comprises the following steps: preparing raw materials of basic monomers, modified monomers and adjuvants; carrying out dewatering pretreatment on mixed polyether glycol; and carrying out pre-polymerization, chain extension, blocking, quaternization and emulsification. So the nanometer in situ composite reaction type organic silicone modified cationic water-based polyurethane is obtained. The method is easy to implement and control, and the nanometer in situ composite reaction type organic silicone modified cationic water-based polyurethane prepared by the method is in a microemulsion state, has a small and uniform emulsion particle size and a good dispersion, and combines merits of organic silicone, polyurethane and inorganic nanometer materials. So the polyurethane prepared in the invention, which can be used to improve the color fastness and pilling resistance of various dyed textiles, allows the textiles to have certain stain resistance, and soft feel of the textiles not to be damaged. Thereby the polyurethane has the advantages of good application performance, wide range of use, safety and environmental protection, and convenient usage.

Description

technical field [0001] The invention relates to a color fastness improving agent used in the post-fixation process of cotton textiles dyed with reactive dyes, direct dyes, vat dyes and sulfur dyes and synthetic fiber textiles dyed with disperse dyes, and knitted fabrics containing wool, cashmere and synthetic fibers The anti-pilling finishing agent used in the functional finishing of textiles, in particular relates to a preparation method of a chemically active nanometer in-situ composite organosilicon-modified cationic waterborne polyurethane. Background technique [0002] At present, water-based polyurethane is often used in the wet rubbing fastness improvement of various dyed textile products and the anti-pilling finishing process of various knitted textile products. Waterborne polyurethane is generally prepared by bulk or solution polymerization and self-emulsification of raw materials such as diisocyanate and polyether diol. [0003] The above raw materials include bas...

Claims

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Application Information

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IPC IPC(8): C08G18/83C08G18/66C08G18/61C08G18/48C08G18/12C08K3/22C08K3/36D06P5/08D06M15/568
Inventor 权衡孟啸陈建平李庆文吴国华田开武
Owner 清河羊绒产业技术研究院
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