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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  • Abstract
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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

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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