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Anionic polyurethane modified organosilicon emulsion and preparation method thereof

A polyurethane modification, silicone emulsion technology, applied in the direction of fiber type, textile and papermaking, fiber processing, etc., can solve problems such as difficulty in durability, and achieve improved film formation, smoothness and water resistance, and improved durability. sexual effect

Active Publication Date: 2016-04-13
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of blended emulsion is only a simple physical mixing, and it is difficult to play a durable role.

Method used

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  • Anionic polyurethane modified organosilicon emulsion and preparation method thereof
  • Anionic polyurethane modified organosilicon emulsion and preparation method thereof
  • Anionic polyurethane modified organosilicon emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: a kind of anionic polyurethane modified silicone emulsion and preparation method thereof, proceed as follows:

[0027] (1) Put 75.0g of polypropylene glycol 1500 and 6.0g of 2,2-dimethylolpropionic acid into the reaction vessel, start stirring, heat to 110°C, vacuumize at -0.08MPa to remove water for 1h, and cool down to 85°C , add 29.5g of isophorone diisocyanate dropwise, and keep warm at 85°C for 3h after the dropwise addition; cool down to below 50°C and add 4.5g of triethylamine for neutralization for 0.5h to obtain polyurethane prepolymer A;

[0028] (2) Put 865.0g of deionized water, 50.0g of dodecylbenzenesulfonic acid, and 30.0g of AEO-3 into the reaction vessel, start stirring, raise the temperature to 50°C, and start to add 5.0g of γ-aminopropyl dropwise after 1.5h of heat preservation Triethoxysilane and 120.0g octamethylcyclotetrasiloxane, dropwise for 2h, then slowly raise the temperature to 75°C, keep warm for 4h, cool down to 30°C, neutrali...

Embodiment 2

[0030] Embodiment 2: a kind of anionic polyurethane modified silicone emulsion and preparation method thereof, proceed as follows:

[0031] (1) Put 100.5g of polypropylene glycol 1000 and 6.0g of 2,2-dimethylolpropionic acid into the reaction vessel, start stirring, heat to 105°C, vacuumize at -0.09MPa to remove water for 1h, and cool down to 80°C , add isophorone diisocyanate dropwise, and keep warm at 80°C for 3h after the dropwise addition; cool down to below 50°C and add 4.5g of triethylamine for neutralization for 0.5h to obtain polyurethane prepolymer A;

[0032] (2) Put 777.0g of deionized water, 40.0g of dodecylbenzenesulfonic acid, and 25.0g of AEO-7 into the reaction vessel, start stirring, raise the temperature to 55°C, and start adding 4.0g of γ-aminopropyl dropwise after keeping it warm for 1 hour Triethoxysilane and 110.0g octamethylcyclotetrasiloxane, dropwise for 2h, then slowly raise the temperature to 80°C, keep warm for 4h, cool down to 30°C, neutralize the ...

Embodiment 3

[0034] Embodiment 3: a kind of anionic polyurethane modified silicone emulsion and its preparation method are carried out according to the following steps:

[0035](1) Put 75.0g of polypropylene glycol 1500 and 5.0g of 2,2-dimethylolpropionic acid into the reaction vessel, start stirring, heat to 105-110°C, vacuumize at -0.085MPa to remove water for 1h, and cool down to 85°C, add isophorone diisocyanate dropwise, keep warm at 85°C for 3.5h after the dropwise addition; cool down to below 50°C and add 3.8g triethylamine for neutralization for 0.5h to obtain polyurethane prepolymer A;

[0036] (2) Put 820.0g of deionized water, 50.0g of dodecylbenzenesulfonic acid, and 25.0g of AEO-9 into the reaction vessel, start stirring, raise the temperature to 55°C, and start adding 5.0g of γ-aminopropyl dropwise after keeping it warm for 1 hour Triethoxysilane and 115.0g octamethylcyclotetrasiloxane, add dropwise for 2h, then slowly raise the temperature to 75°C, keep warm for 5h, cool dow...

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Abstract

The invention relates to the field of weaving auxiliary agents, and especially relates to an anionic polyurethane modified organosilicon emulsion and a preparation method thereof. dodecylbenzene sulfonic acid is employed as an anionic emulsifier and a catalyst, fatty alcohol polyoxyethylene ether is employed as a nonionic emulsifier, an ammonia-containing alkyl coupling agent and an organosilicon monomer are subjected to emulsion copolymerization, and then a polyurethane prepolymer is added for modification, so that the anionic polyurethane modified organosilicon emulsion is obtained. The prepared anionic polyurethane modified organosilicon emulsion contains polyurethane and an organosilicon chain segment and enables finished fabric to possesses high elasticity, smoothness, waterproofness and other excellent performances, and also can be combined with other anionic emulsions for further increasing functions.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to an anionic polyurethane modified silicone emulsion and a preparation method thereof. Background technique [0002] As a fabric finishing agent, anionic silicone emulsion can improve the hand feel of textiles and endow fabrics with softness and smoothness. Since its ionic type is the same as that of most textile auxiliaries, it can be better used in the same bath with anionic auxiliaries. Through the copolymerization reaction with different silane coupling agents, various functional group modified silicone emulsions can be obtained to meet the finishing requirements of different styles. With the improvement of people's living standards, single coupling agent modification can no longer meet the requirements, and the durability is not good. The products modified by multiple coupling agents have good durability and diversified styles, but the product process control requirements a...

Claims

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Application Information

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IPC IPC(8): C08G18/83C08G18/66C08G18/48C08G18/34C08G18/12D06M15/568D06M101/32D06M101/06
CPCC08G18/12C08G18/348C08G18/4825C08G18/6692C08G18/837C08G2261/93D06M15/568D06M2101/06D06M2101/32
Inventor 高雏燕陈焜
Owner HANGZHOU MEIGAO HUAYI CHEM
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