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Radiation refrigeration fiber, preparation method thereof and application of fiber

A radiation refrigeration and fiber technology, applied in the textile field, can solve the problems of poor stability of textile cooling function, complicated process, high cost, etc., and achieve the effect of stable radiation refrigeration effect, good effect and low cost

Active Publication Date: 2020-01-14
NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, textiles with a cooling function are often provided with a silver-plated layer on the surface of the fiber body, and then a radiation cooling layer is placed on the surface of the silver-plated layer to obtain fibers with a radiation cooling function, and then through the fiber with the radiation cooling function. To obtain textiles with cooling function, not only the process is complicated and the cost is high, but also the silver-plated layer and radiation cooling layer arranged on the fiber body are easy to fall off after long-term use, and the cooling function of textiles is not stable.

Method used

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  • Radiation refrigeration fiber, preparation method thereof and application of fiber

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preparation example Construction

[0040] In the current fiber preparation method, melt spinning has the advantages of simple process, no solvent, high spinning rate, and high fiber strength. Therefore, the present invention also provides a method for preparing the above-mentioned radiation refrigeration fiber, include:

[0041] S1, mixing the material of the matrix with the functional filler to obtain a mixture, the mass percentage of the functional filler in the mixture is 1%-17%;

[0042] S2, the mixture is melted and spun to obtain radiation cooling fibers, the linear density of the radiation cooling fibers is 0.3dtex-10dtex, the radiation cooling fibers can reflect visible light and near-infrared light, and pass through the atmosphere in the form of infrared radiation Windows emit heat.

[0043] In step S1, the intrinsic viscosity of the material of the matrix is ​​0.5dL / g-1dL / g, so as to ensure that the mixture has an appropriate viscosity when melting, which is convenient for processing.

[0044] Furth...

Embodiment 1

[0059] Provide PVDF with an intrinsic viscosity of 0.5dL / g and CaCO with a particle size of 10μm 3 Functional filler, 98% by mass of PVDF material and 2% by mass of CaCO 3 The functional fillers are mixed to obtain a mixture. Then the mixture was melted and spun to obtain radiant cooling fibers, wherein the spinning temperature was 200° C. and the spinning speed was 800 m / min.

[0060] The radiation cooling fiber obtained in this example has a linear density of 0.3 dtex, a breaking strength of 7 cN / tex, a breaking elongation of 8%, and an initial modulus of 22 GPa. The linear density of the radiation cooling yarn made from the radiation cooling fiber of this embodiment is 1dtex.

Embodiment 2

[0062] Provide PET with intrinsic viscosity of 1dL / g and jade powder functional filler with a particle size of 10μm, disperse 97% by mass of PET material, 2% by mass of jade powder functional filler, and 1% by mass of stearic acid mixture to obtain a mixture. Then the mixture is melted and spun to obtain radiant cooling fibers, wherein the spinning temperature is 300° C. and the spinning speed is 1000 m / min.

[0063] The radiation cooling fiber obtained in this example has a linear density of 0.3 dtex, a breaking strength of 23 cN / tex, a breaking elongation of 28%, and an initial modulus of 15 GPa. The linear density of the radiation cooling yarn made from the radiation cooling fiber of this embodiment is 1dtex.

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Abstract

The invention relates to a radiation refrigeration fiber, a preparation method thereof and an application of the fiber. The radiation refrigeration fiber comprises a base and functional fillers fixedly distributed in the base, the mass percent of the functional fillers in the radiation refrigeration fiber is 1%-17%, the linear density of the radiation refrigeration fiber is 0.3dtex-10dtex, the radiation refrigeration fiber can reflect visible light and near-infrared light, and heat is emitted by an atmospheric window in an infrared radiation mode. The visible light and near-infrared light reflectivity of a radiation refrigeration fabric prepared from the radiation refrigeration fiber is higher than or equal to 60%, and the emissivity of 7-14 micrometers is higher than or equal to 80%. Therefore, the radiation refrigeration fabric can be further used for preparing textile products such as clothes, curtains, tents, sunshades, hats, scarves, car covers and hoods with cooling requirements,comfort and breathability of the textile products are kept, cooling can be realized by the aid of the textile products, comfortable feeling is increased, energy consumption is omitted, energy is saved, and environments are protected.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to radiation cooling fibers and their preparation methods and applications. Background technique [0002] With the improvement of living standards, people's demand for textiles with cooling function is increasing day by day. At present, textiles with a cooling function are often provided with a silver-plated layer on the surface of the fiber body, and then a radiation cooling layer is placed on the surface of the silver-plated layer to obtain fibers with a radiation cooling function, and then through the fiber with the radiation cooling function. To obtain textiles with cooling function, not only the process is complicated and the cost is high, but also the silver-plated layer and radiation cooling layer arranged on the fiber body are easy to fall off after a long time of use, and the cooling function of the textile is not stable. Contents of the invention [0003] Based on this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/10D01F6/48D01F6/92D01F6/46D01F6/90D02G3/44
CPCD01F1/106D01F6/46D01F6/48D01F6/90D01F6/92D02G3/44D10B2401/16D10B2401/22
Inventor 张园园徐静涛杨剑其他发明人请求不公开姓名
Owner NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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