Washable self-adaptive temperature-adjusting fabric and preparation method thereof

By using silica shell coated with phase-change paraffin and n-octadecane materials, phase-change microcapsules with high packaging rate and high enthalpy value are formed, and textile them into water-resistant adaptive temperature-regulating fabrics, which solves the problems of low thermal conductivity and poor stability of shell materials in the prior art, and achieves efficient temperature adjustment and water-resistant effects.

CN120119381APending Publication Date: 2025-06-10SHANGHAI ALLTEX TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510277056.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-06-10

AI Technical Summary

Technical Problem

In the prior art, organic shell materials commonly used to coat phase change materials have problems such as low thermal conductivity, poor stability and formaldehyde emission, which are difficult to meet the needs of efficient temperature adjustment and water washing resistance.

Method used

Silica is used as the shell material, and SiO2 shell is formed under water bath ultrasonic treatment through sodium silicate as the precursor, and phase change materials such as phase change paraffin and n-octadecane are coated to form phase change microcapsules with high encapsulation rate and high enthalpy value, and they are woven into water-resistant adaptive temperature-regulating fabrics.

Benefits of technology

The packaging rate and melting enthalpy of phase change microcapsules are improved, the utilization rate and temperature adjustment performance of phase change materials are enhanced, the washing resistance of fabrics is improved, and the thermal stability and protection effect of phase change materials are improved.

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Abstract

The invention discloses a washable self-adaptive temperature-adjusting fabric and a preparation method thereof, relates to the technical field of fabrics, and can effectively improve the encapsulation rate and melting enthalpy of phase-change microcapsules in the self-adaptive temperature-adjusting fabric, thereby effectively improving the utilization rate and temperature-adjusting performance of a phase-change material, and further effectively improving the temperature-adjusting performance of the self-adaptive temperature-adjusting fabric. Meanwhile, the washing resistance of the self-adaptive temperature-adjusting fabric is improved; under the action of cationic cetyltrimethylammonium bromide (CTAB), anchoring the silicon dioxide precursor on the surface of the phase change material micelle through hydrogen bond / ionic bond action; the dehydration condensation of the precursor Si-OH is promoted by increasing the pH value, so that a SiO2 shell is formed, and the phase-change material is successfully coated; along with the increase of the proportion of the phase-change material, more phase-change material micelles and binding sites are formed, and the self-condensation proportion of the silicon dioxide precursor is reduced, so that the encapsulation rate of the phase-change capsule is improved.
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