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CN102199877B - Color-photosensitive aqueous polyurethane emulsion for textiles and preparation method thereof - Google Patents

Color-photosensitive aqueous polyurethane emulsion for textiles and preparation method thereof Download PDF

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Publication number
CN102199877B
CN102199877B CN2011100882215A CN201110088221A CN102199877B CN 102199877 B CN102199877 B CN 102199877B CN 2011100882215 A CN2011100882215 A CN 2011100882215A CN 201110088221 A CN201110088221 A CN 201110088221A CN 102199877 B CN102199877 B CN 102199877B
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aqueous polyurethane
polyurethane emulsion
preparation
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CN102199877A (en
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姚督生
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Zhejiang Luoxing Chemical Co.,Ltd.
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JIAXING DONGJING DYEING PRINTING MATERIALS CO Ltd
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Abstract

The invention discloses a color-photosensitive aqueous polyurethane emulsion for textiles and a preparation method thereof; the product comprises the following raw materials in parts by weight: 100 parts of polyatomic alcohol polymer, 70 to 100 parts of polyisocyanates monomer, 5 to 12 parts of micromolecular polyatomic alcohol, 10 to 20 parts of dihydromethyl propionic acid, 7 to 15 parts of dimethylene-butanedioic acid derivative, 9 to 21 parts of neutralizer, 20 to 35 parts of N-methylpyrrolidone or acetone, 490 to 600 parts of deionized water, 2 to 23 parts of diamine chain extender, 2 to 12 parts of tungstic oxide and 1 to 4 parts of assistant. The preparation method of the product comprises the following steps of: reacting the polyisocyanates monomer with the polyatomic alcohol polymer to generate a prepolymer, adding the micromolecular polyatomic alcohol, the dihydromethyl propionic acid and the dimethylene-butanedioic acid derivative for chain extension, adding the N-methylpyrrolidone or acetone and the neutralizer, and reacting so as to disperse to the deionized water, adding the diamine chain extender for chain extension, and finally adding the tungstic oxide and the assistant so as to obtain the product.

Description

A kind of fabric is with sensitization discoloration aqueous polyurethane emulsion and preparation method thereof
Technical field
The invention belongs to the textile printing and dyeing field of materials, relate in particular to a kind of fabric with sensitization discoloration aqueous polyurethane emulsion and preparation method thereof.
Background technology
Along with the appearance of the stricter environmental regulation in various countries and the enhancing of people's environmental consciousness, the aqueous polyurethane emulsion of low content or zero content volatile organic matter (VOC) will obtain fast development.
At present, aspect sensitization discoloration, main method has two kinds: the one, utilize optical principle, carry out film structure design, the material of this method system has the color change interval of broad, but this method because of need adopt computer to carry out the film structure design can not extensive use; The 2nd, add photoactive substance, though this method is simple, because of there is the migration unstable properties in the photoactive substance that adds.
Summary of the invention
The purpose of this invention is to provide that a kind of preparation method is simple, the fabric of stable performance is with sensitization discoloration aqueous polyurethane emulsion and preparation method thereof.
A kind of fabric of the present invention is used the sensitization discoloration aqueous polyurethane emulsion; Raw material by following weight parts is processed: comprise 100 parts of polyhydric alcohol polymers, 70-100 part polyisocynate monomer, 5-12 part micromolecule polyalcohol, 10-20 part dihydromethyl propionic acid, 7-15 part dimethylene butanedioic acid derivative, 9-21 part neutralizer, 20-35 part N-Methyl pyrrolidone or acetone, 490-600 part deionized water, 2-23 part diamine chain extenders, 2-12 part tungsten oxide and 1-4 part auxiliary agent.
Described polyhydric alcohol polymer is a kind of or any several kinds of mixtures in them in PPG, polycaprolactone polyol, polycarbonate polyol, the PolyTHF polyalcohol.
Described polyisocyanic acid monomer is a kind of or any several kinds of mixtures in them in toluene di-isocyanate(TDI) (TDI), methyl diphenylene diisocyanate (MDI), the IPDI (IPDI).
Described micromolecule polyalcohol is 1, a kind of or any several kinds of mixtures in them in 4-butanediol, ethylene glycol, glycerine, the trimethylolpropane.
Described diamine chain extenders is meant ethylenediamine or hydrazine hydrate or IPD.
Described neutralizer is meant triethylamine or diethanol amine or tripropyl amine (TPA).
Described auxiliary agent is levelling agent or antifoaming agent.
Described fabric is with polyisocynate monomer and polyhydric alcohol polymer reaction prepolymer with the preparation method of sensitization discoloration aqueous polyurethane emulsion; Add the micromolecule polyalcohol, dihydromethyl propionic acid and dimethylene butanedioic acid derivative carry out chain extension, add N-Methyl pyrrolidone or acetone, neutralizer; Be distributed in the deionized water after the reaction; Add diamine chain extenders and carry out chain extension, add tungsten oxide and auxiliary agent then, obtain stable fabric sensitization discoloration aqueous polyurethane emulsion.
This fabric is used the sensitization discoloration aqueous polyurethane emulsion, and organic off-color material dimethylene butanedioic acid derivative is received on the big molecule of aqueous polyurethane, the technology that adopts the inorganic off-color material tungsten oxide of organic off-color material dimethylene butanedioic acid derivative and thing to cooperate; Process stable fabric sensitization discoloration aqueous polyurethane emulsion; Its sensitization discoloration effect is excellent, because of dimethylene butanedioic acid derivative and polyurethane molecular are connected together, and the animal migration minimizing; Stable performance, and technology is simple.The textiles that emulsion of the present invention is processed has characteristics such as sensitization discoloration, because product belongs to water-based emulsion, therefore the good feature of environmental protection is arranged.
The specific embodiment
Below describe technical scheme of the present invention in detail through embodiment.
Embodiment 1
Earlier 50g PolyTHF polyalcohol (PTMG-2000), 20g polycaprolactone polyol (PCL-220N), 30g PPG (N220) are added in the reactor of belt stirrer in 120 ℃ of vacuum dehydrations 1 hour; Add the 100g IPDI then; In 85 ℃~90 ℃ reactions 1.5 hours; Add 5g glycerine, 20g dihydromethyl propionic acid and 7g dimethylene butanedioic acid derivative, continue reaction 2 hours, add 35g acetone; Reduce to room temperature then; Add the neutralization of 21g tripropyl amine (TPA), add the emulsification of 600g deionized water after, add 10g hydrazine hydrate, 12g tungsten oxide, 2g antifoaming agent, 2g levelling agent, dispersed with stirring promptly got fabric in 30 minutes and uses the sensitization discoloration aqueous polyurethane emulsion.
Embodiment 2
Earlier 100g PPG (N220) is added in the reactor of belt stirrer in 120 ℃ of vacuum dehydrations 1 hour, add the 72g toluene di-isocyanate(TDI) then, in 85 ℃~90 ℃ reactions 1.5 hours; Add 12g1; 4-butanediol, 12g dihydromethyl propionic acid and 15g dimethylene butanedioic acid derivative continue reaction 2 hours, add the 20gN-methyl pyrrolidone; Reduce to room temperature then; Add the neutralization of 9g triethylamine, add the emulsification of 490g deionized water after, add 8g ethylenediamine, 2g tungsten oxide, 1g antifoaming agent, 2g levelling agent, dispersed with stirring promptly got fabric in 30 minutes and uses the sensitization discoloration aqueous polyurethane emulsion.
Embodiment 3
Earlier 40g PolyTHF polyalcohol (PTMG-2000), 40g PPG (N220), 20g polycarbonate polyol (PCD-980R) are added in the reactor of belt stirrer in 120 ℃ of vacuum dehydrations 1 hour; Add the 100g methyl diphenylene diisocyanate then; In 85 ℃~90 ℃ reactions 1.5 hours; Add 8g trimethylolpropane, 15g dihydromethyl propionic acid and 10g dimethylene butanedioic acid derivative, continue reaction 2 hours, add 30g acetone; Reduce to room temperature then; Add the neutralization of 12g diethanol amine, add the emulsification of 570g deionized water after, add 23g IPD, 8g tungsten oxide, 1g infusion, the flat agent of 3g, dispersed with stirring promptly got fabric in 30 minutes and uses the sensitization discoloration aqueous polyurethane emulsion.
The aqueous polyurethane emulsion that embodiment 1,2 or 3 is made is used for fabric coating, has the sensitization discoloration effect.
In the foregoing description bracket be the kind of corresponding polyalcohol.

Claims (1)

1. a fabric is characterized in that being processed by following steps with the preparation method of sensitization discoloration aqueous polyurethane emulsion:
Earlier 50g PolyTHF polyalcohol, 20g polycaprolactone polyol, 30g PPG are added in the reactor of belt stirrer in 120 ℃ of vacuum dehydrations 1 hour; Add the 100g IPDI then,, add 5g glycerine, 20g dihydromethyl propionic acid and 7g dimethylene butanedioic acid derivative in 85 ℃~90 ℃ reactions 1.5 hours; Continue reaction 2 hours; Add 35g acetone, reduce to room temperature then, add the neutralization of 21g tripropyl amine (TPA); After adding the emulsification of 600g deionized water, add 10g hydrazine hydrate, 12g tungsten oxide, 2g antifoaming agent, 2g levelling agent, dispersed with stirring promptly got fabric in 30 minutes and uses the sensitization discoloration aqueous polyurethane emulsion.
CN2011100882215A 2011-04-07 2011-04-07 Color-photosensitive aqueous polyurethane emulsion for textiles and preparation method thereof Active CN102199877B (en)

Priority Applications (1)

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CN2011100882215A CN102199877B (en) 2011-04-07 2011-04-07 Color-photosensitive aqueous polyurethane emulsion for textiles and preparation method thereof

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CN102199877B true CN102199877B (en) 2012-10-31

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103710960B (en) * 2013-12-24 2015-08-12 东华大学 A kind of preparation method of fabric dedicated optical solidification tungsten-base air purification finishing agent
CN103710959B (en) * 2013-12-24 2015-08-12 东华大学 A kind of preparation method of fabric dedicated optical solidification tungstate-base air purification finishing agent
CN103790025A (en) * 2014-01-20 2014-05-14 南通全技纺织涂层有限公司 Photochromic coated fabric
CN106942990A (en) * 2017-04-06 2017-07-14 合肥欧克斯新型建材有限公司 A kind of Intelligent light-sensitive curtain and preparation method
CN114381196A (en) * 2020-10-16 2022-04-22 广州盛色科技有限公司 Preparation method of photochromic waterborne polyurethane coating
CN113861468B (en) * 2021-10-11 2024-01-23 中国科学技术大学先进技术研究院 Preparation method of photochromic tungsten oxide film and photochromic product
CN114479555B (en) * 2022-01-24 2023-05-23 福州大学 Photochromic wear-resistant aqueous polyurethane ink

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1425726A (en) * 2002-12-30 2003-06-25 华南理工大学 Polyurethane water dispersion and its preparing method
CN1696221A (en) * 2004-05-11 2005-11-16 中科纳米技术工程中心有限公司 Sunlight controlled coating solution in low radiation, preparation method and application
CN1795245A (en) * 2003-07-16 2006-06-28 光学转变公司 Adhesion enhancing coating composition, process for using and coated or laminated articles produced

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1425726A (en) * 2002-12-30 2003-06-25 华南理工大学 Polyurethane water dispersion and its preparing method
CN1795245A (en) * 2003-07-16 2006-06-28 光学转变公司 Adhesion enhancing coating composition, process for using and coated or laminated articles produced
CN1696221A (en) * 2004-05-11 2005-11-16 中科纳米技术工程中心有限公司 Sunlight controlled coating solution in low radiation, preparation method and application

Non-Patent Citations (1)

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Title
沈月庆等.光致变色材料的研究与应用.《材料导报》.2005,第19卷(第10期),31-35. *

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Patentee after: ZHEJIANG LUOXING INDUSTRIAL Co.,Ltd.

Address before: No.66, Yingchun Road, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province

Patentee before: JIAXING DONGJING DYEING PRINTING MATERIALS Co.,Ltd.

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Address after: 314001 west side of bujiao highway, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province

Patentee after: Zhejiang Luoxing Chemical Co.,Ltd.

Address before: 314001 west side of bujiao highway, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province

Patentee before: ZHEJIANG LUOXING INDUSTRIAL Co.,Ltd.

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Denomination of invention: A photochromic waterborne polyurethane lotion for fabric and its preparation method

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