A kind of anisotropic heat-conducting material and preparation method thereof

A thermally conductive material and anisotropic technology, applied in the field of anisotropic thermally conductive materials and their preparation, can solve the problem of low practicality and applicability of high thermal conductivity resins, difficulty in ensuring the directionality of thermal conductivity of materials, and easy occurrence of thin carbon fibers Coagulation and other problems, to achieve the effect of heat transfer control, easy control, and good fluidity
CN105038716BActive Publication Date: 2018-11-16TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2018-11-16

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Abstract

The invention discloses an anisotropic heat conduction material. The anisotropic heat conduction material is a composite material of liquid metal materials and a high-molecular polymer, wherein the high-molecular polymer possesses embedded runners, and the runners are filled with the liquid metal materials. According to the preparation method, the anisotropic heat conduction material is obtained via injecting and sealing room temperature liquid metals, including gallium, indium, mercury, sodium, potassium, caesium, or binary alloys and multicomponent alloys thereof, into the high-molecular polymer; anisotropism of heat conductivity of a composite material prepared via adding high thermal conductivity materials into a base material is increased greatly; and heat energy transmission direction can be controlled artificially based on practical requirements. Preparation is convenient; mixing process and mixing results of the high thermal conductivity additives with the high-molecular polymer can be controlled easily; material heat conductivity anisotropy rate range can be adjusted in a relatively range artificially; and the anisotropic heat conduction material possesses significant importance in the fields of micro-fluidic chips, biological medical testing equipment, cryogenic engineering, and electronic integration equipment.
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Description

technical field

[0001] The invention belongs to the field of heat-conducting materials, and in particular relates to an anisotropic heat-conducting material and a preparation method thereof. Background technique

[0002] With the high integration of devices in the field of electronic appliances and the miniaturization and multi-functionalization of products in recent years, the heat generation density has also increased, and the heat release of electronic equipment and electronic components has become a serious problem. Materials with higher thermal conductivity With the rapid development of integrated circuits, it becomes more and more important. In particular, a problem has arisen in rapidly developing mobile information terminals that the heat generated by components is sufficient to cause low-temperature combustion. Therefore, materials are required not only to directly transfer heat to the chassis, but also to control electronic equipment and electronic components. In ...

Claims

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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