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PEG-SiO2 aerogel phase-change composite material, air-conditioning fiber, air-conditioning fabric and preparation method

A phase change composite material and air-conditioning fiber technology, applied in the field of fiber production, can solve the problems of high production cost, oil-impregnated fabric, low thermal conductivity, etc., and achieve the effects of improving mechanical properties, avoiding leakage problems, and improving dispersibility.

Inactive Publication Date: 2020-08-25
吴江市聚杰微纤无尘洁净纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in order to meet the requirements of "comfort, warmth, health and environmental protection" in clothing, SiO has been developed 2 Airgel fabrics and phase change composite fabrics, but both fabrics have disadvantages; SiO 2 Airgel has the characteristics of light weight and ultra-low thermal conductivity, but the fabric made of its modified fiber will overheat when worn for too long due to its low thermal conductivity, and SiO 2 Airgel has low density, poor mechanical properties, poor dispersion in fibers, and leakage problems
Phase-change composite fabric is a fabric formed by combining organic phase-change materials and fibers, which has a temperature-regulating effect, but when the phase-change material undergoes a phase change, it is easy to cause the appearance of the fabric to appear oily; at present, the preparation of phase-change materials The most common method is the microcapsule method, which uses the prepared microcapsules coated with phase change materials to modify the fibers, and then uses the modified fibers to make fabrics with a temperature-regulating effect; however, the preparation process of the microcapsules is complicated and the production cost is relatively high. high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A PEG-SiO 2 The airgel phase change composite material is prepared by using silica sol, polyethylene glycol and ammonia water as raw materials.

[0033] The PEG-SiO 2 The preparation method of airgel phase change composite material, comprises the steps:

[0034] Step A1, preparation of silica sol:

[0035] Add TEOS, ethanol and water into the beaker at a molar ratio of 1:4:8, stir and mix evenly, then add hydrochloric acid, adjust the pH of the mixture to about 5, and then stir at a constant temperature of 60°C for 90 minutes to obtain a transparent Silica sol;

[0036] Step A2, PEG-SiO 2 Preparation of airgel phase change composites:

[0037] Take by weighing the polyethylene glycol (the molar ratio of PEG800 and PEG1000 is 1:9) that is 10wt% relative to the weight fraction of silica sol, at 50 ℃, after making it melt, add to constant temperature is 60 ℃ In the silica sol, stir and mix evenly to form a silica sol containing organic phase change substances, then a...

Embodiment 2

[0051] A PEG-SiO 2 The airgel phase change composite material is prepared by using silica sol, polyethylene glycol and ammonia water as raw materials.

[0052] The PEG-SiO 2 The preparation method of airgel phase change composite material, comprises the steps:

[0053] Step A1, preparation of silica sol:

[0054] Add TEOS, ethanol and water into the beaker at a molar ratio of 1:4:8, stir and mix evenly, then add hydrochloric acid, adjust the pH of the mixture to about 5, and then stir at a constant temperature of 60°C for 90 minutes to obtain a transparent Silica sol;

[0055] Step A2, PEG-SiO 2 Preparation of airgel phase change composites:

[0056] Take by weighing the polyethylene glycol (the molar ratio of PEG800 and PEG1000 is 1:9) that is 10wt% relative to the weight fraction of silica sol, at 50 ℃, after making it melt, add to constant temperature is 60 ℃ In the silica sol, stir and mix evenly to form a silica sol containing organic phase change substances, then a...

Embodiment 3

[0070] A PEG-SiO 2 The airgel phase change composite material is prepared by using silica sol, polyethylene glycol and ammonia water as raw materials.

[0071] The PEG-SiO 2 The preparation method of airgel phase change composite material, comprises the steps:

[0072] Step A1, preparation of silica sol:

[0073] Add TEOS, ethanol and water into the beaker at a molar ratio of 1:4:8, stir and mix evenly, then add hydrochloric acid, adjust the pH of the mixture to about 5, and then stir at a constant temperature of 60°C for 90 minutes to obtain a transparent Silica sol;

[0074] Step A2, PEG-SiO 2 Preparation of airgel phase change composites:

[0075] Take by weighing the polyethylene glycol (the molar ratio of PEG800 and PEG1000 is 1:9) that is 10wt% relative to the weight fraction of silica sol, at 50 ℃, after making it melt, add to constant temperature is 60 ℃ In the silica sol, stir and mix evenly to form a silica sol containing organic phase change substances, then a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a PEG-SiO2 aerogel phase change composite material and a preparation method thereof. The composite material is prepared from silicon dioxide sol, polyethylene glycol and ammonia water. The invention further discloses an air-conditioning fiber and a preparation method thereof. The air-conditioning fiber is prepared by taking EG, PTA and the PEG-SiO2 aerogel phase change composite material as raw materials through esterification reaction, polymerization reaction and melt spinning. The invention also discloses an air-conditioning fabric prepared from the air-conditioning fiber. The air-conditioning fabric prepared from the air-conditioning fiber prepared from the PEG-SiO2 aerogel phase-change composite material does not have an overheating phenomenon when being worn, not only has the effects of light weight and heat preservation, but also has a temperature adjusting effect, and does not have the problems of powder falling and oil immersion in appearance.

Description

technical field [0001] The invention relates to the technical field of fiber production, in particular to a PEG-SiO 2 Airgel phase-change composite material, air-conditioning fiber, air-conditioning fabric and preparation method. Background technique [0002] At present, in order to meet the requirements of "comfort, warmth, health and environmental protection" in clothing, SiO has been developed 2 Airgel fabrics and phase change composite fabrics, but both fabrics have disadvantages; SiO 2 Airgel has the characteristics of light weight and ultra-low thermal conductivity, but the fabric made of its modified fiber will overheat when worn for too long due to its low thermal conductivity, and SiO 2 Airgel has low density, poor mechanical properties, poor dispersion in fibers, and leakage problems. Phase-change composite fabric is a fabric formed by combining organic phase-change materials and fibers, which has a temperature-regulating effect, but when the phase-change materi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/28C08L71/02C08K3/36D01F6/92D01F1/10C09K5/06D01D5/08C01B33/158C01B33/155C01B33/145
CPCC08J9/28C09K5/063D01D5/08C01B33/1585C01B33/155C01B33/145C08J2371/02C08J2205/026C08K3/36D01F6/92D01F1/10
Inventor 仲鸿天沈松赵禹
Owner 吴江市聚杰微纤无尘洁净纺织品有限公司