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Preparation method of alpha-nanometer alumina oxide modified polyester fibers

A nano-alumina and polyester fiber technology, applied in the field of polyester preparation, can solve the problems of high equipment pressure and inconspicuous cooling sensation, and achieve the effects of low pressure, obvious cooling sensation and simple preparation method.

Active Publication Date: 2018-02-23
ZHEJIANG HENGYI PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that traditional ice-cool polyester fiber puts a lot of pressure on the equipment during the spinning process and the cool feeling is not obvious, the present invention provides a method for preparing polyester fiber modified by α-nano-alumina. relatively simple

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Disperse 10 g of α-nano-alumina powder in 90 g of water, stir and heat to 70°C, adjust the pH to 10 with 10% sodium hydroxide solution, slowly add 10% aluminum sulfate solution and 10% dilute sulfuric acid dropwise Solution, control the mass ratio of alumina coating layer to α-nano-alumina powder to be 1%, after the dropwise addition, adjust the pH to 6 with 10% dilute sulfuric acid solution, continue to stir and mature for 3 h, wash until neutral, Dry in a vacuum oven at 70°C for 16 h. Take 8 g of inorganic coated powder, 0.1 g of polyethylene glycol, and 20 mg of sodium hexametaphosphate, disperse in 50 g of water, wet ball mill for 2 h, settle to remove large particles in the system, and dry in a vacuum oven at 70 °C After 16 h, the modified powder 1 was obtained.

[0033] Add 1660 g of purified terephthalic acid, 664 g of ethylene glycol, 15 g of antimony ethylene glycol, 7 g of triethyl phosphate, and 14.65 g of powder into the polymerization kettle for reaction. ...

Embodiment 2

[0035] Disperse 20 g of α-nano-alumina powder in 80 g of water, stir and heat to 80°C, adjust the pH to 11 with 15% sodium hydroxide solution, slowly add 15% aluminum sulfate solution and 15% dilute sulfuric acid dropwise Solution, control the mass ratio of alumina coating layer and α-nanometer alumina powder to 2%, after the dropwise addition, adjust the pH to 6 with 15% dilute sulfuric acid solution, continue to stir and mature for 4 h, wash until neutral, Dry in a vacuum oven at 80°C for 20 h. Take 15 g of inorganic-coated powder, 0.5 g of polyethylene glycol, and 50 mg of sodium hexametaphosphate, disperse them in 85 g of water, wet ball mill for 3 h, settle to remove large particles in the system, and dry in a vacuum oven at 80 °C After 20 h, the modified powder 2 was obtained.

[0036] Add 1660 g of purified terephthalic acid, 830 g of ethylene glycol, 2 g of ethylene glycol antimony, 0.4 g of triethyl phosphate, and 212.45 g of powder into the polymerization kettle for...

Embodiment 3

[0038] Disperse 30 g of α-nano-alumina powder in 70 g of water, stir and heat to 90°C, adjust the pH to 12 with 20% sodium hydroxide solution, slowly add 20% aluminum sulfate solution and 20% dilute sulfuric acid dropwise Solution, control the mass ratio of alumina coating layer and α-nano-alumina powder to 3%, after the dropwise addition, adjust the pH to 7 with 20% dilute sulfuric acid solution, continue to stir and mature for 5 h, wash until neutral, Dry in a vacuum oven at 80°C for 24 h. Take 25 g of inorganic-coated powder, 0.25 g of polyethylene glycol, and 75 mg of sodium hexametaphosphate, disperse in 75 g of water, wet ball mill for 3 h, settle to remove large particles in the system, and dry in a vacuum oven at 80°C After 24 hours, the modified powder 3 was obtained.

[0039] Add 1660 g of purified terephthalic acid, 996 g of ethylene glycol, 10 g of antimony ethylene glycol, 4 g of triethyl phosphate, and 118.59 g of powder into the polymerization kettle for reacti...

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Abstract

The invention relates to the field of polyester preparation, and discloses a preparation method of alpha-nanometer alumina oxide modified polyester fibers. The method comprises the steps of 1, amorphous alumina oxide coating of the alpha-nanometer alumina oxide, wherein alpha-nanometer alumina oxide powder is dispersed in deionized water, stirring, heating and pH adjustment are conducted, an aluminum sulfate solution is added dropwise, and meanwhile dilute sulfuric acid is used for adjusting pH, stirring curing continues to be conducted after dropwise addition, and drying is conducted after washing is conducted till the pH reaches the neutral state; 2, polyethylene glycol coating of the alpha-nanometer alumina oxide, wherein after the powder, water, polyethylene glycol and a dispersant aremixed, ball milling, washing and drying are conducted, and then modified alpha-nanometer alumina oxide is obtained; 3, preparation of the polyester fibers with a cool feeling. According to the preparation method, the modified alpha-nanometer alumina oxide is adopted to replace traditional cool master batches, the dispersity in polyester melt is good, the pressure on equipment in the spinning process is low, and the obtained fibers are obvious in cool feeling and have a certain health-care effect.

Description

technical field [0001] The invention relates to the field of polyester preparation, in particular to a method for preparing polyester fibers modified by alpha-nanometer alumina. Background technique [0002] Polyester fiber fabrics are widely used in the field of clothing due to their good wrinkle resistance, shape retention, high strength, crispness, and low manufacturing costs. Due to the change of consumption concept, people's requirements for summer clothing are not only satisfied with the fashion of its appearance, but also pay more attention to its inner coolness and comfort. Under such a trend, cool fiber came into being. Traditional cooling fibers usually use natural mica, jade powder, etc. as additives, and use their excellent thermal conductivity and anti-ultraviolet properties to modify conventional polyester fibers. [0003] For example, application numbers 201110325475.4, 201110325475.4, 201710074517.9, melt-blended and spun cold masterbatches containing powde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/183
CPCC08G63/183D01F1/10D01F6/92
Inventor 杜玮辰汪绪兰
Owner ZHEJIANG HENGYI PETROCHEM