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Preparation method of novel quaternization modified block silicone oil

A technology of quaternization modification and block silicone oil, which is applied in the direction of fiber type, plant fiber, fiber treatment, etc., can solve the problem of affecting the hydrophilic performance of softeners, hydrophilicity, hand feeling, antistatic performance decline, and lack of active groups And other issues

Active Publication Date: 2022-07-22
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the design of these two structures can bring better hydrophilicity and hand feeling to the fabric, and has little effect on the whiteness of the fabric, their synthesis methods are all through tertiary amine modified silicone, and the tertiary amine structure used The groups attached to the nitrogen atom of the fiber are all methyl groups, and the methyl group is a hydrophobic group and has no reactivity, which will affect the hydrophilic performance of the softener when the fabric is finished, and it is recorded in the literature that the main fabric used is cotton or polyester cotton
When this kind of finishing agent is applied to the fabric, it is mainly combined with the fabric through ionic bonds. Although the ideal effect can be achieved, after repeated washings, there will often be serious problems such as hydrophilicity, hand feeling, and antistatic performance. Due to the lack of effective active groups in the structure of this type of silicone oil, it is impossible to cross-link with the active groups such as hydroxyl, carboxyl, amido, and amino groups on the fiber, and it cannot cross-link itself. Softeners greatly reduce the choice of fabric types used, thus limiting their further application directions

Method used

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  • Preparation method of novel quaternization modified block silicone oil
  • Preparation method of novel quaternization modified block silicone oil
  • Preparation method of novel quaternization modified block silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Step 1) 215 kilograms of diethanolamine were added to a reaction vessel equipped with a condensing reflux device, and 168 kilograms of hexamethylene diisocyanate (HDI) were pumped into the high-level dropping tank. Hexamethylene diisocyanate (HDI) was added dropwise to the reaction vessel, and the temperature of the material in the reaction vessel was controlled at 20° C. during the dropwise addition. aggregates.

[0019] Step 2) 1000 kilograms of double-ended epoxy silicone oil with a number-average molecular weight of 15,000, 28 kilograms of self-made aqueous urea-based prepolymers, 550 kilograms of isopropanol, and 7 kilograms of glacial acetic acid in step 1) were added to a condensing reflux device. In the reaction vessel of , the temperature of the reaction vessel was raised to 81° C., and the reaction was kept for 7 hours to obtain a new type of quaternized modified block silicone oil.

Embodiment 2

[0021] Step 1) 220 kilograms of diethanolamine are added to the reaction vessel equipped with the condensation reflux device, 168 kilograms of hexamethylene diisocyanate (HDI) are pumped into the high-level dropping tank, and after stirring, start to drip into the reaction vessel. Hexamethylene diisocyanate (HDI) was added, and the temperature of the material in the reaction vessel was controlled at 25° C. during the dropwise addition. After the dropwise addition was completed in 2.5 hours, the reaction was continued at 25° C. for 2.5 hours to obtain an aqueous urea-based prepolymer.

[0022] Step 2) Add 1000 kilograms of double-ended epoxy silicone oil with a number-average molecular weight of 13000, 31 kilograms of self-made water-based urea-based prepolymers, 500 kilograms of isopropanol, and 8 kilograms of glacial acetic acid in step 1) to a condensed reflux device. In the reaction vessel, the temperature of the reaction vessel was raised to 82°C, and the reaction was kept ...

Embodiment 3

[0024] Step 1) 225 kilograms of diethanolamine are added to the reaction vessel equipped with the condensation reflux device, 168 kilograms of hexamethylene diisocyanate (HDI) are pumped into the high-level dropping tank, and after stirring, start to drip into the reaction vessel. Hexamethylene diisocyanate (HDI) was added, and the temperature of the material in the reaction vessel was controlled at 30° C. during the dropwise addition. After the dropwise addition was completed in 2 hours, the reaction was continued at 30° C. for 2 hours to obtain an aqueous urea-based prepolymer.

[0025] Step 2) 1000 kilograms of number-average molecular weight of 10,000 double-ended epoxy silicone oil, 40 kilograms of self-made water-based urea-based prepolymers, 450 kilograms of isopropanol, and 10 kilograms of glacial acetic acid in step 1) were added to a condensing reflux device. In the reaction vessel, the temperature of the reaction vessel was raised to 83 ° C, and the reaction was kept...

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Abstract

The invention relates to the field of textile auxiliaries, in particular to a preparation method of novel quaternization modified block silicone oil. The epoxy silicone oil is prepared from the following raw materials: double-end epoxy silicone oil, diethanol amine, hexamethylene diisocyanate (HDI), isopropanol, glacial acetic acid and the like. A polyether chain segment, a ureido chain segment and a polysiloxane chain segment are introduced into a silicone oil molecular structure at the same time, a finishing agent prepared from the novel quaternization modified block silicone oil can endow a finished fabric with excellent functions of smoothness, elasticity, hydrophilicity, static resistance, low yellowing, low color change and the like and washing resistance, and the novel quaternization modified block silicone oil is suitable for various fiber fabrics.

Description

technical field [0001] The invention relates to a block silicone oil, in particular to a preparation method of a novel quaternized modified block silicone oil, which is used in the field of textile auxiliaries. Background technique [0002] In recent years, hydrophilic block silicone oils have developed rapidly, mainly including side-chain polyether-modified silicone oils and side-chain polyether-modified amino silicone oils. Although they have good hydrophilic properties, the finished fabrics often suffer from poor hand feel. Very ideal, poor water resistance and other issues. [0003] The paper "Synthesis and Properties of Hydrophilic Block Silicone Oil" (Organosilicon Materials, 2020, 34(2) 51-54) introduces the use of epoxy-terminated silicone oil and four alkyl tertiary amines (tetramethylethylenediamine, tetramethylethylenediamine, Tetramethyl propylene diamine, tetramethyl hexamethylene diamine, bis(dimethylaminoethyl) ether) reaction to obtain quaternized hydrophili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/647C08G77/46D06M101/06D06M101/32D06M101/34
CPCD06M15/647C08G77/46D06M2101/06D06M2101/34D06M2101/32D06M2200/50
Inventor 鲁国锋伍成凤宁琳沈聪高凯洋刘钰青徐鸿丹
Owner HANGZHOU MEIGAO HUAYI CHEM