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Polyurethane of super network structure and application thereof in textile functional finishing agent

A technology of fabric finishing agent and network structure, which is applied in fiber treatment, textile and papermaking, wear-resistant fiber, etc., and can solve single problems

Inactive Publication Date: 2018-03-30
SHANGHAI ARGUS NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, what the existing fabric functional finishing agents have is a single effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Polyurethane of super network structure and application thereof in textile functional finishing agent
  • Polyurethane of super network structure and application thereof in textile functional finishing agent
  • Polyurethane of super network structure and application thereof in textile functional finishing agent

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Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The preparation method of the vesicle unit is as follows:

[0034] (1) After mixing the isocyanate and pure solvent evenly, keep a constant temperature of 20°C under stirring;

[0035] (2) After mixing the polyol and the mixed solvent evenly, disperse and stir at a speed of 1000-1500r / min for 20-40 minutes to obtain a mixed emulsion;

[0036] (3) Add the mixed isocyanate in step (1) drop by drop into the mixed emulsion in step (2) under stirring, after the drop is completed, disperse and stir at 500-1000r / min for 1-5 minutes Finally, after suction filtration and washing, three groups were alternately washed with distilled water and absolute ethanol, and dried naturally to obtain vesicle units.

[0037] In step (1)

[0038] As an embodiment of the present invention, the pure solvent is an organic solvent that does not react with isocyanate, for example: silane and cyclohexane.

[0039] From the standpoint of reaction with polyols, the pure solvent is cyclohexane.

[...

Embodiment approach

[0065] As an embodiment of the present invention, the polyol is a mixture of polyester polyol and 3,3'-dithio-1,2-propanediol.

[0066] Wherein, the molar ratio of the polyester polyol to 3,3'-dithio-1,2-propanediol is 1:1.

[0067] The structural formula of the 3,3'-dithio-1,2-propanediol is as follows, and the CAS number is: 4807-52-7.

[0068]

[0069] The molar ratio of the isocyanate to the polyol is 1:1-2, more specifically, the molar ratio of the isocyanate to the polyol is 1:2.

[0070] The mixed solvent is a mixture of cyclohexane and acetone.

[0071] Polyurethane with super network structure

[0072] Among the present invention, the preparation method of the polyurethane of described supernetwork structure is as follows:

[0073] (1) Add 1 part by weight of vesicle unit and 5 parts by weight of coupling agent into the reactor, adjust the pH to 7, react at a constant temperature at 80°C for 1 hour, cool and suction filter, and use absolute ethanol to Wash thre...

Embodiment approach 1

[0091] Embodiment 1. This embodiment provides a polyurethane with a hypernetwork structure, and the structure of the polyurethane is a hyperbranched network structure containing vesicle units.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention provides polyurethane of a super network structure. The structure of the polyurethane is a hyperbranched network structure containing vesicle units. Each vesicle unit is composed of a capsule wall and a capsule core, wherein the capsule wall is prepared from small-molecule polyurethane. The polyurethane of the super network structure disclosed by the invention has superstrong wear resistance, resilience and hydrophility, can repair micro damage on textile and meanwhile has a dual self-repairing function.

Description

technical field [0001] The invention relates to a functional finishing agent for polyurethane fabrics, and more particularly to a polyurethane with a supernetwork structure and its application in the functional finishing agent for fabrics. Background technique [0002] Nowadays, the comfort of fabrics is no longer the only indicator for consumers to choose clothes. Textiles) are also gaining more and more attention. And some laundry products with strong cleaning performance and no damage to clothes are gradually appearing in the eyes of the public. [0003] In recent years, people have developed many functional finishing agents for textiles, such as: durable and easy-to-stain-removing finishing agents, durable hydrophilic finishing agents, durable moisture-absorbing and sweat-wicking agents, durable non-ionic antistatic agents, and anti-wrinkle agents in the bath , Hydrophilic leveling agent, fleece agent, durable hydrophilic softener, etc. [0004] Existing fabric finish...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/77C08G18/76C08G18/66C08G18/42C08G18/32D06M15/572
CPCC08G18/3855C08G18/3893C08G18/6633C08G18/7671C08G18/771D06M15/572D06M2200/35
Inventor 郑国国李正雄
Owner SHANGHAI ARGUS NEW MATERIAL CO LTD