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A kind of photochromic TPU film for clothing and preparation method thereof

A photochromic material and color-induced technology, applied in the field of polymer materials, can solve the problems of photochromic materials such as poor anti-aging performance, inability to meet long-term exposure, and difficulty in ensuring stability, and achieve improved UV resistance and enhanced firmness Degree, enhance the effect of adhesion

Active Publication Date: 2022-07-29
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the photochromic materials reported in the literature currently use metal ions as photosensitizers, which have poor discoloration effects, short lifespan, difficulty in ensuring stability, and high cost; moreover, the photochromic materials have poor aging resistance and cannot meet In harsh environments such as long-term exposure
Moreover, such materials are not suitable for clothing. There are higher requirements for materials used in clothing such as clothing that contacts human skin, and the materials are required to be washable, light-resistant, and UV-resistant.

Method used

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  • A kind of photochromic TPU film for clothing and preparation method thereof
  • A kind of photochromic TPU film for clothing and preparation method thereof
  • A kind of photochromic TPU film for clothing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In the present embodiment, a photochromic TPU film for clothing is provided, and the preparation raw materials include the following components in parts by weight:

[0042]

[0043] The diisocyanate is isophorone diisocyanate, the number average molecular weight of polyether polyol (purchased from Guangzhou Wenlong Chemical Industry, the same below) is 5000, and the anthrone-based photochromic material is 1,2-dihydro-9- Hydroxyanthracene-1-one, the chain extender is ethylene glycol, and the catalyst is stannous octoate.

[0044] The preparation method is as follows:

[0045] (1) mixing diisocyanate and polyether polyol, and evacuating at 60 DEG C under the stirring condition of 500r / min, the degree of vacuum is -0.4kPa, to obtain a prepolymer;

[0046] (2) adding a chain extender and a catalyst to the prepolymer obtained in step (1), and continuing the reaction at 80° C. for 4 hours;

[0047] (3) adding N-methyl spirooxazine and anthrone-based photochromic materials ...

Embodiment 2

[0049] In the present embodiment, a photochromic TPU film for clothing is provided, and the preparation raw materials include the following components in parts by weight:

[0050]

[0051]

[0052] The diisocyanate is isophorone diisocyanate, the number average molecular weight of the polyether polyol is 4000, the anthrone photochromic material is 1,2-dihydro-9-hydroxyanthracene-1-one, and the chain extender is Ethylene glycol, and the catalyst is stannous octoate.

[0053] The preparation method is as follows:

[0054] (1) mixing diisocyanate and polyether polyol, and evacuating at 55 DEG C under the stirring condition of 600r / min, the degree of vacuum is-0.4kPa, to obtain a prepolymer;

[0055] (2) adding a chain extender and a catalyst to the prepolymer obtained in step (1), and continuing the reaction at 70° C. for 3h;

[0056] (3) adding N-methyl spirooxazine and anthrone photochromic materials to the reacted material in step (2), stirring at 1000 r / min for 1 hour...

Embodiment 3

[0058] In the present embodiment, a photochromic TPU film for clothing is provided, and the preparation raw materials include the following components in parts by weight:

[0059]

[0060]

[0061] The diisocyanate is isophorone diisocyanate, the number average molecular weight of the polyether polyol is 5000, the anthrone-based photochromic material is 1,2-dihydro-9-hydroxyanthracene-1-one, and the chain extender is 1,3-propanediol, the catalyst is dibutyltin dioctoate.

[0062] The preparation method is as follows:

[0063] (1) mixing diisocyanate and polyether polyol, and evacuating at 60 DEG C under the stirring condition of 800r / min, the degree of vacuum is -0.2kPa, to obtain a prepolymer;

[0064] (2) adding a chain extender and a catalyst to the prepolymer obtained in step (1), and continuing the reaction at 80° C. for 1 h;

[0065] (3) adding N-methyl spirooxazine and anthrone photochromic materials to the reacted material in step (2), stirring at 800 r / min for...

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Abstract

The invention provides a photochromic TPU film for clothing and a preparation method thereof. The preparation raw materials of the photochromic TPU film for clothing include diisocyanate, polyether polyol, N-methyl spirooxazine, anthrone-based light Chromogenic materials, chain extenders and catalysts. In the present invention, N-methyl spirooxazine and anthrone-based photochromic materials are used, and the synergistic effect of the two can enhance the discoloration strength of the material, enhance the adhesion of the discolored material, and enhance its firmness on fabrics such as clothing. The degree of light resistance and UV resistance are improved. The photochromic TPU film for clothing of the present invention has good softness and hand feeling, good discoloration under sunlight, water wetness reaches grade III, dry rubbing and wet rubbing reach grade 4, soaping and washing fastness reaches grade 4-5, and brushing fastness reaches grade 4. Reach level IV.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a photochromic TPU film for clothing and a preparation method thereof. Background technique [0002] At present, the application of various glass or decoration interlayers, films and adhesives is becoming more and more common, and the requirements for energy saving, environmental protection, aesthetics and quality are also getting higher and higher. The combination of color-changing materials and the above materials solves this problem very well. a question. The film made by combining photochromic material and PVB is used to make glass interlayer material, which can make glass have the advantages of good transparency, high impact strength, energy saving, sound insulation, UV protection, etc. (When the sunlight is strong, it becomes colored glass, which blocks the sun, reduces ultraviolet rays, and adjusts the light and temperature in the house; when there is no sunlight,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/08C08K5/357C08K5/07C08K5/132C08J5/18
CPCC08J5/18C08J2375/08C08K5/357C08K5/07C08K5/132
Inventor 何建雄杨博
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD