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Preparation method and product of polyurethane waterproof stiffening agent emulsion

A polyurethane waterproof and stiffening agent technology, applied in the direction of repelling fibers for liquids, textiles and papermaking, anti-coloring pollution/anti-fouling fibers, etc., can solve the problems of lack of toughness and functionality, containing formaldehyde, easy to scratch, etc. , to achieve high hardness, good water repellency, and the effect of improving hardness

Active Publication Date: 2018-10-23
珠海华天印新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fabric stiffener products based on the prior art are usually polyacrylate polymers or melamine fabric stiffeners, which not only contain formaldehyde, are easy to crack, and are easy to scratch, but also lack toughness and functionality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053]Embodiment 1 The preparation method of polyurethane waterproof stiffening agent emulsion of the present invention

[0054] The raw material of this preparation method comprises:

[0055] 1. Polymerized monomer

[0056] Diisocyanate: toluene diisocyanate 11.0mol (1915.7g)

[0057] Polyester diol: polyadipate-1,4-butylene glycol ester diol with a molecular weight of 3000 1.0mol (3000.0g)

[0058] Chain extender: non-ionic chain extender 1,4-butanediol 1.5mol (135.2g), anionic chain extender dimethylol propionic acid 3.1mol (415.8g)

[0059] 2. Modifier

[0060] Fluorocarbon alcohol: perfluoroalkyl chain length is C 4 ~C 12 1.4mol (700.0g) of perfluoroalkyl ethyl alcohol mixture with an average molecular weight of 500

[0061] Functional chain extender: monoglyceride stearate 0.3mol (107.6g)

[0062] 3. Adjuvant

[0063] Polymerization catalyst: stannous octoate (2.5g)

[0064] Neutralizer: Triethylamine (374.2g)

[0065] Diluent: methyl ethyl ketone (2800.0g)

...

Embodiment 2

[0093] Embodiment 2 The preparation method of polyurethane waterproof stiffening agent emulsion of the present invention

[0094] The raw material of this preparation method comprises:

[0095] 1. Polymerized monomer

[0096] Diisocyanate: Isophorone diisocyanate 11.0mol (2445.2g)

[0097] Polyester diol: 0.6mol (2800.0g) of polyadipate-1,4-butylene glycol ester diol with a molecular weight of 3500, and 0.2mol (200.0g) of polycarbonate with a molecular weight of 1000

[0098] Chain extender: non-ionic chain extender neopentyl glycol 1.4mol (145.8g), anionic chain extender dimethylol butyric acid 3.0mol (444.5g)

[0099] 2. Modifier

[0100] Fluorocarbon alcohol: perfluoroalkyl chain length is C 8 Perfluorooctyl ethyl alcohol 1.6mol (696.0g)

[0101] Functional chain extender: monoglyceride stearate 0.2mol (71.7g)

[0102] 3. Adjuvant

[0103] Polymerization catalyst: stannous octoate (3.5g)

[0104] Neutralizer: Triethylamine (400.0g)

[0105] Diluent: methyl ethyl ke...

Embodiment 3

[0133] Embodiment 3 The preparation method of polyurethane waterproof stiffening agent emulsion of the present invention

[0134] The raw material of this preparation method comprises:

[0135] 1. Polymerized monomer

[0136] Diisocyanate: toluene diisocyanate 11.0mol (1915.7g)

[0137] Polyester diol: polyadipate-1,4-butylene glycol ester diol with a molecular weight of 2500 1.1mol (2750.0g)

[0138] Chain extender: non-ionic chain extender 1,4-butanediol 1.6mol (144.2g), anionic chain extender dimethylol butyric acid 3.3mol (488.9g)

[0139] 2. Modifier

[0140] Fluorocarbon alcohol: perfluoroalkyl chain length is C 4 ~C 12 1.2mol (540.0g) of perfluoroalkyl ethyl alcohol mixture with an average molecular weight of 450

[0141] Functional chain extender: with a molecular weight of 472.7 containing C 10 Long-chain alkyl glycol 0.4mol (189.1g)

[0142] 3. Adjuvant

[0143] Polymerization catalyst: dibutyltin dilaurate (2.1g)

[0144] Neutralizer: Triethylamine (450.0g...

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Abstract

The invention relates to a preparation method for a polyurethane waterproof stiffener emulsion and the polyurethane waterproof stiffener emulsion product. The preparation method comprises the following steps: raw material preparation: polymeric monomers, a modifying agent, an auxiliary agent and water; polyester diol dehydration pretreatment; prepolymerization; chain extension; end capping; emulsification to obtain the polyurethane waterproof stiffener emulsion product. A polyurethane stiffener molecule adopts polyester diol with higher molecular weight and higher phase-transition temperature as a polyurethane soft-segment phase region structure, an appropriate amount of side long chain alkyls and end perfluoroalkyls are introduced, the stiffening hand feeling of various flexible textile products can be remarkably improved, meanwhile the flexible textile products are endowed with obvious water repellence and stain repellence, and the polyurethane waterproof stiffener emulsion can be widely applied to stiffening finishing of various textile products, and has good market prospects; the product is safe, environment-friendly, and convenient to use.

Description

technical field [0001] The invention relates to a functional polyurethane stiffening agent emulsion used for stiffening finishing of various textile products, in particular to a preparation method of a polyurethane waterproof stiffening agent emulsion and a product thereof. Background technique [0002] In the field of textiles, functional water-based polyurethane materials are often used in the finishing of textile substrates and the finishing of various textiles with special functions such as waterproof and moisture permeability, anti-pilling, anti-wrinkle and anti-shrinkage, or finishing with soft, stiff, and simulated hand styles. At present, in the field of stiffening and finishing of textiles, there are no related reports on functional modified water-based polyurethane stiffening agents with excellent comprehensive performance. The fabric stiffener products based on the prior art are usually polyacrylate polymer or melamine fabric stiffeners, which not only contain for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/44C08G18/32C08G18/34C08G18/28C08G18/10C08G18/12D06M15/576
CPCC08G18/10C08G18/12C08G18/4238C08G18/44D06M15/576D06M2200/01D06M2200/12C08G18/3203C08G18/348C08G18/2805
Inventor 倪丽杰权衡潘名玉李祥
Owner 珠海华天印新材料有限公司
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