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Low-yellowing hydrophilic finishing agent and preparation method thereof

A hydrophilic finishing agent, low-yellowing technology, applied in the direction of fiber treatment, improved hand fiber, textiles and papermaking, etc., can solve the problem of increasing the flow viscosity of aminohydrocarbyl polyorganosiloxane and affecting the softness of aminohydrocarbyl polyorganosiloxane. It can improve the chemical stability, strengthen the flexibility and reduce the viscosity.

Inactive Publication Date: 2016-08-10
GUANGDONG ZHAN FENG FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned methods are only aimed at the amino group itself, and its reaction mechanism is to reduce the reactivity of the amino group itself by reducing the amount of active hydrogen on the amino group, so as to reduce the yellowing phenomenon and improve its hydrophilicity after textile finishing.
The above method will directly affect the softness of the aminoalkyl polyorganosiloxane itself, and will greatly increase the flow viscosity of the aminoalkyl polyorganosiloxane, making it very difficult to emulsify, thereby increasing the processing cost of the finishing process

Method used

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  • Low-yellowing hydrophilic finishing agent and preparation method thereof
  • Low-yellowing hydrophilic finishing agent and preparation method thereof
  • Low-yellowing hydrophilic finishing agent and preparation method thereof

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preparation example Construction

[0046] The preparation method of low-yellowing hydrophilic finishing agent of the present invention comprises the following steps:

[0047] 1) Take corresponding raw materials according to the above proportioning ratio for subsequent use;

[0048] 2) Preparation of aminohydrocarbyl polyorganosilane:

[0049] a: Under normal pressure, add polysiloxane monomer and aminoethyl-aminopropyl-methyldialkoxysilane to a flask equipped with a stirrer and a thermometer, heat to 80-110°C while stirring, and react Time 50-130 minutes;

[0050] b: Add an alkalizing agent to the flask after the reaction in step a is completed, and keep the temperature at 80-110°C for 3-5 hours;

[0051] c: naturally cool the mixture obtained in step b to room temperature, add 0.05-0.1 part of acidifying agent to neutralize, and obtain aminohydrocarbyl polyorganosilane;

[0052] 3) Preparation of modified aminohydrocarbyl polyorganosiloxane:

[0053] d: Add 100 parts of aminoalkyl polyorganosilane and orga...

Embodiment 1

[0063] The low-yellowing hydrophilic finishing agent of the present invention includes polysiloxane monomer, aminoethyl-aminopropyl-methyldialkoxysilane, isopropanol, acrylic acid, isomeric C13 alcohol ether 5EO, potassium hydroxide and acetic acid, the above components are calculated in parts by mass: 100 parts of polysiloxane monomer; 2 parts of aminoethyl-aminopropyl-methyldialkoxysilane; 5 parts of isopropanol; 1 part of acrylic acid ; 5 parts of isomeric C13 alcohol ether 5EO; 0.05 parts of potassium hydroxide; 0.15 parts of acetic acid.

[0064] The molecular structural formula of aminoethyl-aminopropyl-methyldialkoxysilane is:

[0065]

[0066] The preparation method of low-yellowing hydrophilic finishing agent of the present invention comprises the following steps:

[0067] 1) Take corresponding raw materials according to the above proportioning ratio for subsequent use;

[0068] 2) Preparation of aminohydrocarbyl polyorganosilane:

[0069] a: Under normal pressu...

Embodiment 2

[0082]The low-yellowing hydrophilic finishing agent of the present invention includes polysiloxane monomer, aminoethyl-aminopropyl-methyldialkoxysilane, isopropanol, ethanol, ethylene glycol monobutyl ether, dipropylene glycol, Acrylic acid, ethylene carbonate, isomeric C13 alcohol ether 5EO, isomeric C13 alcohol ether 7EO, branched fatty alcohol polyoxyethylene ether 7EO, branched fatty alcohol polyoxyethylene ether 9EO, potassium hydroxide, hydroxide Sodium, acetic acid and propionic acid, the above components are calculated in parts by mass: 100 parts of polysiloxane monomer; 13 parts of aminoethyl-aminopropyl-methyldialkoxysilane; 10 parts of isopropanol ; 10 parts of ethanol; 10 parts of ethylene glycol monobutyl ether; 10 parts of dipropylene glycol; 3 parts of acrylic acid; 2 parts of ethylene carbonate; 4 parts of isomeric C13 alcohol ether 5EO; 4 parts of fatty alcohol polyoxyethylene ether 7EO; 4 parts of branched fatty alcohol polyoxyethylene ether 9EO; 0.1 part of ...

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Abstract

The invention discloses a low-yellowing hydrophilic finishing agent which is characterized by comprising the following components in parts by mass: 100 parts of polysiloxane monomer, 2-13 parts of aminoethyl-aminopropyl-methyldialkoxy silane, 5-40 parts of organic solvent, 1-5 parts of modifier and 5-15 parts of emulsifier. The low-yellowing hydrophilic finishing agent disclosed by the invention has low yellowing, good hydrophilic property and low flow viscosity.

Description

technical field [0001] The invention relates to a processing aid for textiles, in particular to a low-yellowing hydrophilic finishing agent and a preparation method thereof. Background technique [0002] Finishing agent is currently a very widely used textile processing aid, which is mainly added to the surface of textiles and achieves the purpose of endowing textiles with special functions through mutual reactions. Aminoalkyl polyorganosiloxane is the most commonly used textile finishing agent, and its chemical structure is to contain amino functional groups at both ends of linear polydimethylsiloxane. Because the end group is a reactive group with high activity, aminoalkyl polyorganosiloxane has the advantages of good flexibility, high smoothness and strong friction resistance. When it is added to the surface of textile as a finishing agent, it can endow the textile with excellent softness and good smoothness. However, since the terminal group of aminohydrocarbyl polyorg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643C08J3/03C08L83/08C08G77/388
CPCD06M15/643C08G77/388C08J3/03C08J2383/08C08L83/08D06M15/6436D06M2200/25D06M2200/50
Inventor 胡丽君张敏珊何爱君
Owner GUANGDONG ZHAN FENG FINE CHEM CO LTD
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