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A kind of cationic polyester polyether block copolymer and its preparation method and application

A technology of block copolymer and polyester polyether, applied in the field of daily chemicals, can solve the problems of insufficient washing resistance, easy to be stained, easy to generate static electricity, etc. Hydrophilic and antistatic ability, the effect of increasing detergency

Active Publication Date: 2018-07-27
广州增城潮徽生物技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester is a typical hydrophobic fiber. It has only one hydroxyl group at both ends of its molecule and no other hydrophilic groups, resulting in high molecular arrangement density, high crystallinity, poor hygroscopicity under normal conditions, and easy to generate static electricity. , easy to be stained, the moisture absorption rate in the standard state is only 0.4%
At present, there are many kinds of finishing agents for polyester fibers on the market, which are mainly used in fabric dyeing and finishing before leaving the factory, but almost none are used in household laundry detergent. At the same time, the current polyester fabric finishing agents are usually only for fabrics. To improve a certain aspect, such as improving only one or two aspects of water absorption, antistatic property, and soft hand feeling, and the general washability is not enough, so a kind of anti-aging agent that can be applied to laundry detergent is developed It is necessary to have a multifunctional detergency synergist for cleaning and care of polyester fabrics

Method used

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  • A kind of cationic polyester polyether block copolymer and its preparation method and application
  • A kind of cationic polyester polyether block copolymer and its preparation method and application
  • A kind of cationic polyester polyether block copolymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Take by weighing 100 grams of dimethyl terephthalate, 70 grams of ethylene glycol, and 0.25 grams of manganese acetate; add the above-mentioned materials in the reaction kettle, heat up to 150° C., keep for 3.5 hours, and remove the low boilers by distillation. The transparent viscous liquid obtained is terephthalate;

[0042] (2) In the reaction system of step (1), add polyethylene glycol (molecular weight is 1000Da) 750 grams, triphenyl phosphate 5.00 grams, polycondensation catalyst (manganese acetate and antimony oxide mixture, mass ratio is 1:1) 1.25 gram, heated up to 230°C in a nitrogen atmosphere, kept at a constant temperature for 30 minutes, then carried out polycondensation reaction at a vacuum degree of -0.05MPa and a temperature of 240°C for 45 minutes, and cooled to 60°C to obtain a polyester polyether block copolymer;

[0043] (3) Add 23 grams of epichlorohydrin to the polyester polyether block copolymer that step (2) obtains, heat preservation reacti...

Embodiment 2

[0046] (1) Take by weighing 110 grams of dimethyl terephthalate, 80 grams of ethylene glycol, and 0.20 grams of magnesium acetate; add the above-mentioned materials in the reaction kettle, heat up to 160 ° C, keep for 3.0 hours, and distill off the low boilers, The transparent viscous liquid obtained is terephthalate;

[0047] (2) In the reaction system of step (1), add polyethylene glycol (molecular weight is 2000Da) 1000 grams, triphenyl phosphate 5.50 grams, polycondensation catalyst (zinc acetate and antimony oxide mixture, mass ratio is 1:1) 2.25 gram, heated up to 210°C in a nitrogen atmosphere, kept at a constant temperature for 40 minutes, then carried out polycondensation reaction at a vacuum degree of -0.05MPa and a temperature of 240°C for 60 minutes, and cooled to 65°C to obtain a polyester polyether block copolymer;

[0048](3) Add 45 grams of epichlorohydrin to the polyester polyether block copolymer that step (2) obtains, heat preservation reaction 1 hour, add 9...

Embodiment 3

[0051] (1) Take by weighing 100 grams of dimethyl terephthalate, 50 grams of ethylene glycol, and 0.25 grams of zinc acetate; add the above-mentioned materials in the reaction kettle, heat up to 180° C., keep for 3.5 hours, and distill to remove low boilers. The transparent viscous liquid obtained is terephthalate;

[0052] (2) In the reaction system of step (1), add polyethylene glycol (polyethylene glycol molecular weight is 2000Da) 640 grams, triphenyl phosphate 3.40 grams, polycondensation catalyst (zinc acetate and antimony oxide mixture, mass ratio 1: 2) 1.30 grams, heated up to 220°C in a nitrogen atmosphere, kept at a constant temperature for 60 minutes, then carried out polycondensation reaction at a vacuum degree of -0.08MPa and a temperature of 240°C for 60 minutes, and cooled to 70°C to obtain a polyester polyether block copolymer thing;

[0053] (3) Add 52 grams of epichlorohydrin to the polyester polyether block copolymer that step (2) obtains, heat preservation...

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Abstract

The invention discloses a cationic polyester polyether segmented copolymer, and a preparation method and applications thereof. The structure of the cationic polyester polyether segmented copolymer is shown by the formula (I). The molecular weight of the segmented copolymer is in a range of 5000 to 15000 Da. The segmented copolymer can be mixed with alcohol and water to prepare a decontamination synergist, and can be applied to daily chemical products such as detergents to increase the decontamination performance on polyester fabrics. At the same time, the segmented copolymer can enhance the hydrophilic property and antistatic performance of polyester fabrics, and moreover, polyester fabrics processed by the segmented copolymer become washing resistant and soft.

Description

technical field [0001] The invention belongs to the field of daily chemicals, and in particular relates to a cationic polyester polyether block copolymer and its preparation method and application. Background technique [0002] The fibers used in daily life include natural fibers and synthetic fibers. Natural fibers include animal and plant fibers such as cotton, hemp, and wool. Synthetic fibers include spandex, cotton fiber, polyester, etc., among which polyester (polyethylene terephthalate) ) is used most in synthetic fibers. Compared with natural fibers such as cotton fabrics, polyester fibers have the advantages of high strength, high elasticity, no wrinkling after repeated rubbing, good heat resistance, and good wear resistance. So far, polyester has become a high-yield, fastest-growing synthetic fiber. As of 2013, the global polyester production capacity was 57.64 million tons. my country's polyester production capacity in 2013 was 40.31 million yuan, accounting for 6...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/26C08G65/332C08G65/333C11D7/60C11D7/26
CPCC08G65/2615C08G65/3326C08G65/33306C11D3/3707C11D3/3715C11D7/261
Inventor 谢明容何衍建黄桂州陈杰烽郑华生谢培镇张鹏
Owner 广州增城潮徽生物技术有限公司
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