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A blocked isocyanate self-crosslinking type unidirectional moisture guide and its preparation method

A technology of blocked isocyanate and unidirectional moisture guide, which is applied in fiber types, textiles and papermaking, fiber treatment, etc., and can solve problems such as non-compliance with environmental protection regulations, human hazards, accumulation, etc.

Active Publication Date: 2020-10-23
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used one-way moisture guide agent is a fluorine-containing water-repellent finishing agent. This finishing agent has excellent hydrophobic performance, but it is easy to accumulate in nature and organisms, eventually causing harm to humans, and does not meet the requirements of environmental protection regulations.

Method used

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  • A blocked isocyanate self-crosslinking type unidirectional moisture guide and its preparation method
  • A blocked isocyanate self-crosslinking type unidirectional moisture guide and its preparation method
  • A blocked isocyanate self-crosslinking type unidirectional moisture guide and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 100 parts of octamethylcyclotetrasiloxane, 2 parts of 3-isocyanatopropyltriethoxysilane, 6 parts of 1,3-di(3-glycidylpropyl)-1,1,3,3- Tetramethyldisiloxane, 12 parts of long-chain alkyl polydimethylsiloxane and 0.8 parts of potassium hydroxide were added to the reaction vessel, heated to 120°C, kept for 3 hours, cooled to 80°C, and 1 1 part of methyl ethyl ketone oxime, after the dropwise addition, keep warm for 0.5h, then add 3 parts of diethylenetriamine, keep warm at 70°C for 1h, then cool down and discharge to obtain a blocked isocyanate self-crosslinking type unidirectional moisture guide.

[0018] See attached figure 1 , which is the infrared spectrogram of the present embodiment. It can be seen from the figure that at 1259.16cm -1 、1013.05cm -1 、797.35cm -1 The three characteristic absorption peaks of organic silicon are at 3384.25cm -1 The characteristic absorption peak of amino group is at 1698.94cm -1 and 1530cm -1 The place is the characteristic absorp...

Embodiment 2

[0020] 100 parts of octamethylcyclotetrasiloxane, 4 parts of 3-isocyanatopropyltriethoxysilane, 4 parts of 1,3-bis(3-glycidylpropyl)-1,1,3,3- Tetramethyldisiloxane, 15 parts of long-chain alkyl polydimethylsiloxane and 1 part of potassium hydroxide were added to the reaction vessel, heated to 120°C, kept for 3 hours, cooled to 80°C, and 2 1 part of methyl ethyl ketone oxime, after the dropwise addition, keep warm for 1 hour, then add 2 parts of diethylenetriamine, keep warm at 70°C for 1 hour, then cool down and discharge, to obtain a blocked isocyanate self-crosslinking type unidirectional moisture guide;

[0021] See attached figure 2 , which is the infrared spectrogram of the present embodiment. It can be seen from the figure that at 1259.24cm -1 、1016.60cm -1 、785.95cm -1 There are three characteristic absorption peaks of organic silicon, 3374.31cm -1 The characteristic absorption peak of amino group is at 1696.54cm -1 and 1535.07cm -1 The place is the characterist...

Embodiment 3

[0023] 100 parts of octamethylcyclotetrasiloxane, 3 parts of 3-isocyanatopropyltriethoxysilane, 5 parts of 1,3-di(3-glycidylpropyl)-1,1,3,3- Tetramethyldisiloxane, 15 parts of long-chain alkyl polydimethylsiloxane and 1 part of potassium hydroxide were added to the reaction vessel, heated to 110°C, kept for 4 hours, cooled to 80°C, and 1.5 1 part of methyl ethyl ketone oxime, after the dropwise addition, keep warm for 1 hour, then add 2 parts of diethylenetriamine, keep warm at 80°C for 1 hour, then cool down and discharge, to obtain a blocked isocyanate self-crosslinking type unidirectional moisture guide;

[0024] See attached image 3 , which is the infrared spectrogram of the present embodiment. It can be seen from the figure that at 1259.25cm -1 、1016.60cm -1 、800.78cm -1 The three characteristic absorption peaks of organic silicon are at 3374.16cm -1 The characteristic absorption peak of amino group is at 1696.40cm -1 and 1535.00cm -1 The place is the characterist...

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Abstract

The invention relates to the field of textile auxiliary agents, in particular to a terminated isocyanate self-crosslinking one-way moisture transfer agent and a preparation method thereof. The terminated isocyanate self-crosslinking one-way moisture transfer agent is prepared from, by weight, 100 parts of octamethylcyclotetrasiloxane, 2-4 parts of 3-isocyanatopropyltriethoxysilane, 4-6 parts of 1,3-bis(3-glycidoxypropyl)-1,1,3,3-tetramethyldisiloxane, 10-15 parts of long-chain aikyl dimethiconol, 0.5-1 part of potassium hydroxide, 0.6-2 parts of methyl ethyl ketoxime and 1.5-3 parts of diethylenetriamine. The terminated isocyanate self-crosslinking one-way moisture transfer agent is high in environmental friendliness, and the environment is further protected.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to a blocked isocyanate self-crosslinking type unidirectional moisture guide and a preparation method thereof. Background technique [0002] The moisture permeability of fabric is an important index to measure the comfort of clothing. The fabric with good moisture-conducting properties can transfer the sweat produced by the human body from the inner surface of the fabric to the outer surface of the fabric in one direction and spread it quickly, so as to keep the human skin dry and adjust the comfort of the human body's microclimate zone. In recent years, most of the researchers at home and abroad have realized the unidirectional moisture transfer of fabrics by changing the fiber structure and fabric structure. Although this fabric structure can achieve rapid moisture absorption, it is not conducive to the rapid evaporation of moisture. At present, fabrics are finished with a uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/653D06M101/34
CPCD06M15/653D06M2101/34D06M2200/50
Inventor 何齐海陈焜
Owner HANGZHOU MEIGAO HUAYI CHEM
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