A kind of preparation method of low discoloration piperazinyl terminated ester amide polyether modified block silicone oil

A modified technology of terminal ester amide and polyether, which is applied in the direction of improved hand feeling fibers, fiber treatment, textiles and papermaking, etc., can solve the problems of reduced wearing performance, stuffy wearing, easy color change of fabrics, etc., to improve softness, Strong adsorption and high molecular weight effect

Active Publication Date: 2021-07-30
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, amino polyether block silicone oil has developed rapidly in the textile industry, but it is mainly synthesized by reacting epoxy-terminated silicone oil with ED series polyetheramine, D series polyetheramine and polyethylene polyamine series amines, which can endow Polyester fabrics, cotton fabrics, and polyester-cotton fabrics have excellent soft feel and retain a certain degree of hydrophilicity of the fabrics, but the nylon fabrics after finishing often have poor hygroscopicity, stuffy wearing, less than ideal hand feeling, greatly reduced wearing performance, and The finished fabric is easy to change color
[0003] Nylon fiber belongs to filament and has high rigidity. The gray fabric weaves is often stiff. The finished fabric needs to be soft and smooth. It often requires multiple silicone softeners to be combined and finished. Transportation, the common use of multiple silicone softeners means that more storage tank equipment is required, which is not conducive to the utilization of space and the management of production formulas, and greatly increases the production cost of the dyeing factory

Method used

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  • A kind of preparation method of low discoloration piperazinyl terminated ester amide polyether modified block silicone oil
  • A kind of preparation method of low discoloration piperazinyl terminated ester amide polyether modified block silicone oil
  • A kind of preparation method of low discoloration piperazinyl terminated ester amide polyether modified block silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) Add 55 grams of N-aminoethylpiperazine into the reaction vessel, pump 70 grams of epoxy capping agent into the high level tank, raise the temperature of the reaction vessel to 65°C, add the epoxy capping agent dropwise, and keep warm after the addition is completed Reacted for 2 hours to obtain a double-ended piperazine cap;

[0023] 2) Add 2,000 grams of epoxy silicone oil with a number average molecular weight of 10,000 terminals, 95 grams of esteramide polyether, and 900 grams of isopropanol into a reaction vessel, heat to 78° C., and keep warm for 8 hours, then add 1 ) obtained in all the double-ended piperazine end caps, at 78 ° C, heat preservation reaction for 5 hours, to prepare the required low color change piperazinyl end-capped esteramide polyether modified block silicone oil of the present invention.

Embodiment 2

[0025] 1) Add 70 grams of N-aminoethylpiperazine into the reaction vessel, pump 80 grams of epoxy capping agent into the high level tank, raise the temperature of the reaction vessel to 70°C, add epoxy capping agent dropwise, and keep warm after the addition is completed Reacted for 3 hours to obtain a double-ended piperazine cap;

[0026] 2) Add 3,000 grams of epoxy silicone oil with a number average molecular weight of 13,000, 105 grams of ester amide polyether, and 1,000 grams of isopropanol into a reaction vessel, heat to 80° C., and keep warm for 9 hours, then add 1 ) obtained in all the double-ended piperazine end caps, at 80 ° C, heat preservation reaction for 6 hours, to prepare the required low color change piperazinyl end-capped esteramide polyether modified block silicone oil of the present invention.

Embodiment 3

[0028] 1) Add 80 grams of N-aminoethylpiperazine to the reaction vessel, pump 90 grams of epoxy capping agent into the high level tank, raise the temperature of the reaction vessel to 85°C, add epoxy capping agent dropwise, and keep warm after the addition is completed Reacted for 4 hours to obtain a double-ended piperazine cap;

[0029] 2) Add 3,500 grams of epoxy silicone oil with a number average molecular weight of 15,000, 115 grams of ester amide polyether, and 1,100 grams of isopropanol into a reaction vessel, heat to 82°C, and keep warm for 10 hours, then add 1 ) obtained in all the double-ended piperazine end caps, at 82 ° C, heat preservation reaction for 8 hours, to prepare the required low color change piperazinyl end-capped esteramide polyether modified block silicone oil of the present invention.

[0030] Low color change piperazinyl terminated ester amide polyether modified block silicone oil application finishing process:

[0031] 1. Preparation of low color ch...

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Abstract

The invention relates to the field of textile auxiliaries, in particular to a method for preparing a low-discoloration piperazinyl-terminated ester amide polyether modified block silicone oil, which consists of N-aminoethyl piperazine, epoxy head-sealing agent, ester amide Polyether, epoxy-terminated silicone oil, and isopropanol are used as raw materials. The silicone oil is emulsified and used for the finishing of nylon fabrics. The treated fabrics not only have good soft and smooth hand feeling, but also have low color change. The invention introduces piperazine, polyether and amide groups into the main chain of the silicone oil to overcome the defects of low adsorption rate, large color change, poor hydrophilicity and unsatisfactory hand feeling of traditional block silicone oil used in nylon fabric finishing.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to a preparation method of a low-foaming silicon-containing degreasing agent. Background technique [0002] In recent years, amino polyether block silicone oil has developed rapidly in the textile industry, but it is mainly synthesized by reacting epoxy-terminated silicone oil with ED series polyetheramine, D series polyetheramine and polyethylene polyamine series amines, which can endow Polyester fabrics, cotton fabrics, and polyester-cotton fabrics have excellent soft feel and retain a certain degree of hydrophilicity of the fabrics, but the nylon fabrics after finishing often have poor hygroscopicity, stuffy wearing, less than ideal hand feeling, greatly reduced wearing performance, and The finished fabric is prone to discoloration. [0003] Nylon fiber belongs to filament and has high rigidity. The gray fabric weaves is often stiff. The finished fabric needs to be soft and sm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/46D06M15/647
CPCC08G77/46D06M15/6436D06M15/647D06M2101/34D06M2200/50
Inventor 伍成凤何齐海
Owner HANGZHOU MEIGAO HUAYI CHEM
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