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A kind of linear multi-block copolymerized silicone oil and preparation method thereof

A technology of block copolymerization and silicone oil, which is applied in fiber treatment, textiles and papermaking, and improved hand-feeling fibers, etc., to achieve excellent moisture permeability, smooth air permeability, and easy reaction process

Active Publication Date: 2021-04-20
CHANGSHU CHANGJI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to provide a linear multi-block copolymerized silicone oil containing polyester, polyamide, polyether, amino and hydroxyl functional groups and its preparation method, which can solve the above-mentioned defects existing in existing textile softeners

Method used

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  • A kind of linear multi-block copolymerized silicone oil and preparation method thereof
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  • A kind of linear multi-block copolymerized silicone oil and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0054] (1) Put 900g (15mol) of ethylenediamine and 831g (5mol) of terephthalic acid into the reaction bottle, slowly raise the temperature to 120°C and react for 4 hours, then gradually raise the temperature to 180°C, and evaporate excess ethylenediamine and water ;

[0055] (2) Add 1500 g (5 mol) of 12-hydroxystearic acid to the polyamide prepared in the above (1), gradually raise the temperature to 200° C., and react for 15 hours;

[0056] (3) Add double-end epoxy polyether silicone oil (m=0, n=0, z=70) 13.3kg, ethylene glycol monobutyl ether 10.6kg in the polyester polyamide that above-mentioned (2) makes, Raise the temperature to 85°C and react for 16 hours to obtain 26.6 kg of linear multi-block copolymerized silicone oil containing polyester, polyamide, polyether, amino, and hydroxyl functional groups, with a volatile content of 60.2%.

Embodiment 2

[0058] (1) Put 324.42g (3mol) of p-phenylenediamine and 204.18g (2mol) of succinic acid into the reaction bottle, slowly raise the temperature to 180°C, and react for 8 hours to obtain polyamide;

[0059] Put 624.6g (3mol) of β-hydroxybutyric acid into another reaction flask, raise the temperature to 220°C, cool down after receiving about 36g of water, and obtain polyester;

[0060] (2) Mix the polyamide and polyester prepared in the above (1), heat up to 180° C. and react for 10 hours to obtain polyester polyamide;

[0061] (3) Add 3658.2 g of double-ended epoxy polyether silicone oil (m=8, n=0, z=83) and 11 kg of isopropanol to the polyester polyamide prepared in the above (2), and heat up to 80° C. After reacting for 6 hours, 7800 g of isopropanol was evaporated to obtain 7860 g of linear multi-block copolymerized silicone oil containing polyester, polyamide, polyether, amino and hydroxyl functional groups, with a solid content of 58.7%.

Embodiment 3

[0063] (1) Put 581g (5mol) of hexamethylenediamine and 584.56g (4mol) of adipic acid into the reaction bottle, slowly raise the temperature to 180°C, and react for 10h to prepare polyamide;

[0064] Put 450.4g (5mol) of L-lactic acid (5mol) and 300ml of n-hexane into the reaction flask, heat up to reflux for dehydration, and when the amount of water is removed to about 72ml, distill out the n-hexane to obtain lactic acid polyester;

[0065] (2) Mix the polyamide and lactic acid polyester prepared in the above (1), heat up to 180° C., and react for 8 hours to obtain polyester polyamide;

[0066] (3) Add double-end epoxy polyether silicone oil (m=18, n=13, z=200) 8760g, isopropoxyethanol 10.16kg in the polyester polyamide that above-mentioned (2) makes, heat up to React at 120°C for 4 hours to obtain 20.3 kg of linear multi-block copolymer silicone oil containing polyester, polyamide, polyether, amino, and hydroxyl functional groups, with a solid content of 50.2%.

[0067] The ...

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Abstract

The invention discloses a linear multi-block copolymerized silicone oil and a preparation method thereof. The synthesis steps include: reacting a diamine with a dibasic acid to generate a polyamide; esterifying and polycondensing a hydroxy carboxylic acid into a polyester; The polyamide and polyester are reacted to generate polyester polyamide; the obtained polyester polyamide is reacted with double-end epoxy polyether silicone oil in an organic solvent to obtain the linear multi-block copolymer silicone oil. The reaction process of the present invention is easy to control and realize, the reaction raw materials are easy to obtain, the cost is low, and it is easy to industrialize production. Textile newspaper has durable hydrophilicity, excellent moisture permeability, air permeability and smooth hand feeling, and low yellowing, which can effectively improve the wearability of textiles.

Description

technical field [0001] The invention relates to the technical field of synthesis of fabric finishing agents, in particular to a linear multi-block copolymerized silicone oil containing polyester, polyamide, polyether, amino and hydroxyl functional groups and a preparation method thereof. Background technique [0002] With the improvement of living standards, people's requirements for clothing are increasingly developing in the direction of beauty, comfort and functionality. The hand feel of the fiber will change after being processed. For example, after the cotton is scouring, bleaching and dyed, the fiber is damaged, which makes the hand feel very poor. In order to meet the needs of consumers for the softness and comfort of textiles, fabric finishing agents are getting more and more attention. [0003] At present, the most used textile softeners on the market are modified silicone softeners, including amino-modified silicone softeners, epoxy-modified silicone softeners and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/46C08G77/445C08G77/455D06M15/647
CPCC08G77/445C08G77/455C08G77/46D06M15/6436D06M15/647D06M2200/50
Inventor 傅人俊
Owner CHANGSHU CHANGJI CHEM
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