Preparation method and application of insulating high-thermal-conductivity plastic prepared through one-step bidirectional drawing

Abstract

The invention discloses a preparation method and application of insulating high-thermal-conductivity plastic prepared through one-step bidirectional drawing. The method comprises the following steps:(1) preparing nanometer color paste with good dispersibility from inorganic nanometer powder with an insulating function and high thermal conductivity; (2) uniformly mixing the nanometer color paste with good dispersibility, an insulating function and high thermal conductivity and plastic master batch at the melting temperature of plastic under twin-screw stirring and then carrying out extrusion granulation so as to obtain organic-inorganic plastic master batch with high thermal conductivity; and (3) adding a small amount of the plastic master batch with high thermal conductivity during film preparation so as to prepare a film with high thermal conductivity. According to the invention, the inorganic nanometer powder with the insulating function and high thermal conductivity is blended withthe organic polymer plastic master batch, so multi-functional inorganic nanoparticles are directly polymerized in an organic polymer material; so the functionality and stability of the inorganic material can be retained, and the optical performance, mechanical properties, chemical stability and the like of the organic polymer material are modified.

Description

technical field [0001] The invention relates to a preparation method and application of a one-step biaxially stretched insulating high-thermal-conduction film, especially refers to directly adding organic-inorganic composite particles with high thermal conductivity in the process of preparing the heat-conducting film, and then stretching it in one step without An additional coating process is required. Background technique [0002] The uniform compounding of functional inorganic nanomaterials and organic polymer materials has always been a research hotspot in the field of composite materials. Because general organic polymer materials have the advantages of simple production, easy processing and molding, high transparency, and low cost, but also have disadvantages such as poor weather resistance and weak functionality; while inorganic materials have good temperature resistance and multi-function (anti-static, anti-ultraviolet) , Anti-fouling, anti-static, good thermal conduc...

AI Technical Summary

Problems solved by technology

Because general organic polymer materials have the advantages of simple production, easy processing and molding, high transparency, and low cost, but also have disadvantages such as poor weather resistance and weak functionality; while inorganic materials have good temperature resistance and multi-function (anti-static, anti-ultraviolet) , anti-fouling, anti-static, good thermal conductivity) and other advantages, but the disadvantage is that it is not easy to process and shape, especially the shortcomings of non-geometric rules that are difficult to process restrict its large-scale use in daily life

Therefore, a single material restricts the application of organic and inorganic materials in real life processes