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A technology of microcapsule finishing, heat storage and temperature regulation, applied in microcapsule preparations, textiles and papermaking, microsphere preparation, etc., can solve the problems of small volume expansion rate and residual formaldehyde, and achieve slow heating or cooling rate and good effect. Effect
Inactive Publication Date: 2012-10-17
FUJIAN ZHONGHE
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(7) The volume expansion rate is small
At present, polymers such as urea-formaldehyde resin are used as wall materials. Due to the influence of their preparation process and the intrinsic properties of materials, formaldehyde will remain in the capsule wall, thus limiting their application.
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[0047] Paraffin phase change material (A): n-eicosane.
[0048] (1) Preparation of nano-microcapsules of phase change material (A):
[0049] Step 1, according to the mass ratio of phase change material paraffin: the total mass ratio of styrene (ST) and butyl acrylate (BA) is 1:1, the mass ratio of styrene (ST) : the mass of butyl acrylate (BA) The ratio is 10:1, the mass of acrylic acid (AA): the ratio of the total mass of styrene (ST) and butyl acrylate (BA) is 1 / 100, the mass of paraffin: deionized water (H 2 OH) with a mass ratio of 10 / 100;
[0050] Step 2, 0.5% sodium dodecylbenzenesulfonate (SDS) and 1% potassium persulfate (KPS) according to the total mass of styrene (ST) and butyl acrylate (BA) taken in step 1;
[0051] Step 3: Add styrene (ST), butyl acrylate (BA) and acrylic acid (AA) weighed in steps 1 and 2 into deionized water, mix, and stir ...
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Abstract
The invention discloses a finishing technology of nano-grade phase-change microcapsule heat-accumulation temperature-adjustment intelligent textile fabric printed cloth. The nano-grade phase-change microcapsules are prepared according to certain steps and process conditions. The nano-grade phase-change microcapsules and the textile fabric printed cloth are cross-linked and finished, such that a finished product is obtained. The textile fabric is printed cloth of cotton, tencel, modal, blended cotton (viscose cotton, polyester cotton, polyamide cotton), silk, wool cotton, and the like. According to the finished nano-grade phase-change microcapsule heat-accumulation temperature-adjustment intelligent printed cloth, the encapsulation appearance of the nano-grade microcapsules is complete, an average particle size is 150nm, a shell thickness is 15nm, a core-shell volume ratio is approximately 1:1, peak phase-change temperatures are respectively 18-40 DEG C, and phase-change enthalpies are respectively 57-60J / g. The heating or cooling rate of the finished nano-grade phase-change microcapsule printed cloth is substantially retarded, such that the cloth has an intelligent temperature-adjustment function. Therefore, the cloth can be widely applied in outdoor clothes, underwear, sweaters, shirts, hats, gloves, and bedclothes, and provides a good effect.
Description
technical field [0001] The invention relates to the technical field of dyeing and finishing in the textile manufacturing industry, in particular to a finishing process of nano phase change microcapsule heat storage and temperature regulating intelligent textile fabric printing and dyeing. Background technique [0002] The world's energy is becoming increasingly tense, and phase change materials have gradually entered the field of energy conservation and become a research hotspot. The technology of using phase change latent heat of phase change materials (Phase Change Material, PCM) to store thermal energy has the advantages of high energy storage density, approximately constant temperature in the heat storage and release process, and easy control of the process. Textiles are of great importance. Phase change heat storage technology has become one of the most attractive thermal energy utilization technologies. During the application of phase change energy storage materials,...
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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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