Preparation method for polyester fiber with efficient performance of light absorption and heat emission

A light-absorbing and heat-generating polyester fiber technology, which is applied in the fields of fiber chemical characteristics, single-component polyester rayon, melt spinning, etc., can solve the problems of poor light-absorbing and heat-generating properties of heat-retaining fibers, and achieve enhanced heat-retaining effect and radiation intensity Enhanced, synergistic effect

Inactive Publication Date: 2020-07-31
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention effectively solves the problem of poor light-absorbing and heat-generating properties of thermal fibers prepared by adding inorganic functional powders in the current market, and the mechanism is as follows:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] a CuFe 2 o 4 @SiO 2 The preparation method of powder, at first under agitation condition, Cu(NO 3 ) 2 ·3H 2 O solution (concentration is 10wt%) and Fe(NO 3 ) 3 9H 2 After the mixed solution of O solution (concentration is 10wt%) is added dropwise in the citric acid monohydrate solution (concentration is 10wt%) in 1h, adopts ammonia water to adjust the pH value of the system to 7.0 to obtain precursor solution, the mole of citric acid monohydrate The amount is Fe(NO 3 ) 3 9H 2 O and Cu(NO 3 ) 2 ·3H 2 O 10% of the sum of the molar weights, then after adding dropwise the mixed solution of tetraethyl orthosilicate and absolute ethanol in the precursor solution, adjust the pH value of the system to 7.0 with ammonia water, and vacuum-dry under the temperature condition of 80 ℃ 12h to obtain xerogel, Fe(NO 3 ) 3 9H 2 O, Cu(NO 3 ) 2 ·3H 2 The molar ratio of O and ethyl orthosilicate is 2:1:1, and the quality of ethyl orthosilicate is 20% of the mass of the mi...

Embodiment 2

[0050] a CuFe 2 o 4 @SiO 2 The preparation method of powder, at first under agitation condition, Cu(NO 3 ) 2 ·3H 2 O solution (concentration is 25wt%) and Fe(NO 3 ) 3 9H 2 After the mixed solution of O solution (concentration is 25wt%) is added dropwise in the monohydrate citric acid solution (concentration is 25wt%) in 2h, adopts ammonia water to adjust the system pH value to 8.0 to obtain precursor solution, the mole of monohydrate citric acid The amount is Fe(NO 3 ) 3 9H 2 O and Cu(NO 3 ) 2 ·3H 2 O 25% of the sum of the molar weights, then dropwise add a mixed solution of tetraethyl orthosilicate and absolute ethanol to the precursor solution, adjust the pH value of the system to 8.0 with ammonia water, and vacuum dry at a temperature of 100°C 30h to obtain xerogel, Fe(NO 3 ) 3 9H 2 O, Cu(NO 3 ) 2 ·3H 2 The molar ratio of O and ethyl orthosilicate is 2:1:2, and the quality of ethyl orthosilicate is 35% of the mass of the mixed solution of ethyl orthosilic...

Embodiment 3

[0052] a CuFe 2 o 4 @SiO 2 The preparation method of powder, at first under agitation condition, Cu(NO 3 ) 2 ·3H 2 O solution (concentration is 40wt%) and Fe(NO 3 ) 3 9H 2 After the mixed solution of O solution (concentration is 40wt%) is added dropwise in the citric acid monohydrate solution (concentration is 40wt%) in 3h, adopts ammonia water to adjust the pH value of the system to 9.0 to obtain precursor solution, the mole of citric acid monohydrate The amount is Fe(NO 3 ) 3 9H 2 O and Cu(NO 3 ) 2 ·3H 2 O 40% of the sum of the molar weights, then dropwise add a mixed solution of tetraethyl orthosilicate and absolute ethanol to the precursor solution, adjust the pH value of the system to 9.0 with ammonia water, and vacuum-dry at 120°C 48h to obtain xerogel, Fe(NO 3 ) 3 9H 2 O, Cu(NO 3 ) 2 ·3H 2 The molar ratio of O and ethyl orthosilicate is 2:1:3, and the quality of ethyl orthosilicate is 50% of the mass of the mixed solution of ethyl orthosilicate and ab...

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Abstract

The invention relates to a preparation method for a polyester fiber with efficient performance of light absorption and heat emission. CuFe2O4@SiO2 powder, polyether and polyester reaction materials are mixed and treated successively by an esterification reaction, condensation polymerization and melt spinning, so that the polyester fiber with the efficient performance of light absorption and heat emission is obtained; the CuFe2O4@SiO2 powder is of a core-shell structure, wherein a nuclear layer is CuFe2O4, and a shell layer is SiO2; and an abnormal-shaped hollow spinneret plate is used in meltspinning. The preparation method provided by the invention has the beneficial effects that a technology is simple, modified production can be conducted on an existing device, cost increase is less, and the method is applicable to large-scale production; and compared with a conventional polyester fiber, the fiber prepared finally is good in the performance of light absorption and heat emission, good in mechanical performance and good in electric conduction performance, and a fabric obtained through further processing is good in thermal insulation performance.

Description

technical field [0001] The invention belongs to the technical field of functional polyester fibers, and relates to a method for preparing polyester fibers with high-efficiency light-absorbing and heat-generating properties, in particular to a method for forming light-absorbing and heat-generating functional polyesters by using organic-inorganic hybridization, and then passing through a special-shaped hollow spinneret A method for preparing polyester fibers with high-efficiency light-absorbing and heat-generating properties by melt spinning. Background technique [0002] Fiber materials are basic raw materials such as textile fabrics and clothing. With the continuous upgrading of consumption levels, on the basis of existing fiber products, the further development of fibers with warmth and light texture can not only meet the needs of contemporary people in the fast-paced life of the office. , Warm needs, but also fit with the young people's concept of "traveling lightly", has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01D5/08D01D5/16D01D10/02D01F1/10
CPCD01D5/08D01D5/16D01D10/02D01F1/10D01F6/92
Inventor 吉鹏王朝生王华平曾超徐朝晨李睿言
Owner DONGHUA UNIV
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