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Preparation method of polyurethane modified organic silicon moisture-absorption and sweat releasing finishing agent micro-emulsion

A polyurethane modification, moisture absorption and perspiration technology, which is applied in fiber treatment, textiles and papermaking, etc., can solve the problems of difficult repair, easy demulsification, oil floating, etc., and can solve the problems of easy yellowing, excellent hand feeling and yellowing of fabrics small effect

Inactive Publication Date: 2018-10-16
GUANGDONG CHUANHUA FULIAN FINE CHEM CO LTD
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  • Application Information

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Problems solved by technology

[0005] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a method for preparing polyurethane-modified silicone moisture-absorbing and sweat-wicking finishing agent microemulsion, which has excellent washing resistance, acid and alkali resistance, electrolyte resistance, high temperature resistance, shear resistance, etc. performance, completely solves the problems of easy demulsification, oil floating, sticking to rollers, and difficulty in repairing existing in traditional amino silicone oils

Method used

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  • Preparation method of polyurethane modified organic silicon moisture-absorption and sweat releasing finishing agent micro-emulsion

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[0025] A preparation method of a microemulsion of a polyurethane-modified organosilicon moisture-absorbing and sweat-wicking finishing agent, comprising the following steps:

[0026] 1) Synthesis of aminopropyl-terminated amino silicone oil: using octamethylcyclotetrasiloxane, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane, Wherein the mass ratio of octamethylcyclotetrasiloxane to 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 20:1-50:1, Under the action of basic catalyst tetramethylammonium hydroxide or alkali gum, wherein, the consumption of basic catalyst is octamethylcyclotetrasiloxane and 1,3-bis(3-aminopropyl)-1,1 , 0.001-0.01 times the total mass of 3,3-tetramethyldisiloxane, react at 100°C-130°C for 10-20 hours to synthesize aminopropyl-terminated amino silicone oil intermediate;

[0027] 2) Polyurethane prepolymer synthesis: using polyethylene glycol 1000 or polyethylene glycol 2000 (polyethylene glycol) and toluene diisocyanate, tolyl methane diisocya...

Embodiment 1

[0031] A preparation method of a microemulsion of a polyurethane-modified organosilicon moisture-absorbing and sweat-wicking finishing agent, comprising the following steps:

[0032] 1) Synthesis of aminopropyl-terminated amino silicone oil: using octamethylcyclotetrasiloxane, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane, Wherein the mass ratio of octamethylcyclotetrasiloxane and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 20:1, in the basic catalyst Under the effect of tetramethylammonium hydroxide, wherein, the amount of basic catalyst is octamethylcyclotetrasiloxane and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyl 0.001 times the total mass of disiloxane, and reacted at 100°C for 20 hours to synthesize aminopropyl-terminated amino silicone oil intermediate;

[0033] 2) Polyurethane prepolymer synthesis: adopt polyethylene glycol 1000 (polyethylene glycol) and toluene diisocyanate (polyisocyanate) through vacuum dehydration treatment, according to the rati...

Embodiment 2

[0037]A preparation method of a microemulsion of a polyurethane-modified organosilicon moisture-absorbing and sweat-wicking finishing agent, comprising the following steps:

[0038] 1) Synthesis of aminopropyl-terminated amino silicone oil: using octamethylcyclotetrasiloxane, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane, Wherein the mass ratio of octamethylcyclotetrasiloxane and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 30:1, in basic catalyst Under the effect of alkali colloid, wherein, the consumption of basic catalyst is octamethylcyclotetrasiloxane and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane 0.003 times the total mass of alkane, and reacted at 110°C for 18 hours to synthesize an aminopropyl-terminated amino silicone oil intermediate;

[0039] 2) Polyurethane prepolymer synthesis: adopt polyethylene glycol 2000 (polyethylene glycol) and tolyl methane diisocyanate (polyisocyanate) through vacuum dehydration treatment, according to the rati...

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Abstract

The invention discloses a preparation method of polyurethane modified organic silicon moisture-absorption and sweat releasing finishing agent micro-emulsion and belongs to the technical field of preparation of textile finishing agents. The preparation method comprises the following steps: 1) synthesizing aminopropyl end-capped amino silicone oil; 2) synthesizing a polyurethane pre-polymer; 3) synthesizing polyurethane modified organic silicon polymer crude oil; 4) preparing the moisture-absorption and sweat releasing finishing agent micro-emulsion. The polyurethane modified organic silicon moisture-absorption and sweat releasing finishing agent prepared by the invention gives extremely excellent hydrophilic performance for various fiber fabrics and has a prominent hydrophilic persistent effect; a hand feeling can reach the level of common amino silicone oil and is better than that of almost hydrophilic block silicone oil in the market; meanwhile, the problem that amino easily becomes yellow at a high-temperature can be effectively solved; a fabric treated by the finishing agent micro-emulsion becomes yellow and the color change is small, so that the finishing agent micro-emulsion is applicable to finishing of white or light-color fabrics.

Description

technical field [0001] The invention relates to a preparation method of a microemulsion of a polyurethane-modified organosilicon moisture-absorbing and perspiration finishing agent, and belongs to the technical field of preparation of textile finishing agents. Background technique [0002] Moisture wicking finishing agent has become an indispensable processing product in the high-end clothing industry. The common fiber substrates used for moisture wicking finishing are mainly polyester and nylon fibers. Domestic and foreign companies choose pairs similar to polyester in accordance with the principle of similar compatibility. Polyethylene glycol phthalate is used to finish the fabric, and polyamide polyether copolymer is used to finish the nylon fabric, which can obtain excellent hydrophilic effect, but it often has a general hand feeling and poor wearing comfort. [0003] In order to increase the added value of products, some enterprises introduce silicone chain segments int...

Claims

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Application Information

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IPC IPC(8): D06M15/643D06M15/568C08G18/76C08G18/75C08G18/61C08G18/48C08G18/10
CPCC08G18/10C08G18/4833C08G18/755C08G18/7614D06M15/568D06M15/6436C08G18/61
Inventor 黄武欢
Owner GUANGDONG CHUANHUA FULIAN FINE CHEM CO LTD
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