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Production of inorganic-phase variable composite material of membrane-coated porous adsorptive

A phase-change composite material and inorganic phase-change technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of undiscovered inorganic phase-change materials and unseen materials.

Inactive Publication Date: 2007-01-17
浙江华特实业集团华特化工有限公司
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AI Technical Summary

Problems solved by technology

[0005] After searching, no inorganic phase change materials have been found, and there are no related reports on the production of inorganic phase change composite materials by the dual technology of porous adsorption and outsourcing capsules, and no corresponding materials have been published.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 (comparison table 1, 2 in embodiment row sequence, component, proportioning number in parts by weight):

[0015] Mix 73 parts of CaCl2 6H2O and 0.3 part of HEC (hydroxyethyl cellulose), add 0.5 parts of BaCO3 and 1 part of FeCl2, add to the reaction kettle, and heat to 1-3 parts higher than the melting point of CaCl2 6H2O (29.7°C). The temperature of ℃, that is, 31-33 ℃, makes it melt to the transparent liquid phase, and adds 0.1-1 times (note that it is a multiple) of the total weight of the above three components of porous mineral materials, specifically 15 parts by weight of diatomaceous earth, Fully stir evenly, heat-preserve and absorb for 4 hours, cool to a solid phase, discharge, and pulverize to a material with a particle size of 0.1mm-20μm for later use. Then carry out film coating, which can be compared with sequence 1 in Table 2, use 10 parts of paraffin, 80 parts of No. 200 solvent oil, heat to melt the paraffin, then add 10 parts by weight of p...

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PUM

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Abstract

Production of porous adsorptive inorganic phase-variable composite material with film-coated is efficient. The composite material consists of inorganic hydrous salt 73-98 proportion, agent for preventing phase separation 0.3-3 proportion, and sub-cool resisting agent 0.5-2 proportion. The process is carried out by combing agent for preventing phase separation, mixed absorbing it with mineral porous material in proportion of 1:0.1-1, breaking it into grain with granular diameter=0.1mm-20um, and coating granular phase-variable material by film-forming agent to obtain the final product. It is non-volatile, has stable performance, better heat conductivity and mechanical strength.

Description

technical field [0001] The invention relates to an inorganic phase-change composite material and a method for producing the material by using an inorganic phase-change composition (core material) through dual technologies of porous adsorption and outer layer coating. Background technique [0002] Energy issues have always been the leading and strategic issues that countries around the world pay attention to. The emergence of phase change energy storage materials has become a new flower in the field of energy-saving materials. Its development, application, discussion and practice closely follow the theme of energy conservation. US Patent No. 4,504,402 discloses a microcapsule-coated phase-change material technology. The particle size of the material is 0.3-2.5 cm, and the volume of the outer microcapsule is 5-30% of the total capacity. The proportion of organic outsourcing capsules is large, the wall thickness and thermal conductivity are greatly reduced, and the application ...

Claims

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Application Information

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IPC IPC(8): C09K5/02
Inventor 王春伟王伟东
Owner 浙江华特实业集团华特化工有限公司
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