Novel thermal conductive insulating plastic

Abstract

The invention discloses novel thermal conductive insulating plastic. The novel thermal conductive insulating plastic is prepared from the following raw materials: styrene monomer, dibenzoyl peroxide,deionized water, polyvinyl alcohol, sodium polystyrene sulfonate, aniline, 3,4-ethylene dioxythiophene, a catalyst, actinolite powder, a regulator, a stabilizer, polyphosphazene, a fullerene loading agent, polyphenylene ether resin, acicular alpha-alumina, nano silica, an antioxidant, a lubricant and a flame retardant. The heat conductive plastic is light in weight, good in insulating performance,low in production cost and good in heat dissipation performance, a one-step method is used for preparing heat conductive polystyrene particles, and further blending modification is carried out to improve thermal conductivity, the novel thermal conductive insulating plastic has the characteristics of high mechanical properties, corrosion resistance, high heat transfer coefficient and impact resistance and can be subjected to secondary blending modification processing, and the defects of high filling rate, poor mechanical properties and high cost of existing thermal conductive plastic are overcome.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a novel heat-conducting and insulating plastic. Background technique [0002] With the continuous development of industrial production and science and technology, people have higher and higher requirements for the comprehensive performance of thermal conductive materials, and traditional metal materials can no longer meet the requirements of some special occasions. For example, the rapid accumulation and increase of heat generated by electronic equipment will cause the device to malfunction, so timely heat dissipation has become an important factor affecting its life. Therefore, it is urgent to develop thermally conductive insulating materials with high reliability and high heat dissipation performance to replace traditional materials. In the plastics industry, the largest and most important application of thermally conductive plastics is to replace metals ...

AI Technical Summary

Problems solved by technology

Therefore, only when the amount of heat-conducting particles increases to a certain critical value, rapid heat conduction can be achieved in this direction, not only because of a large amount of heat-conducting particles, the cost is significantly increased, and the mechanical properties of the parts such as impact are also significantly reduced.

The thermal conductivity of high thermal conductivity plastics has been greatly restricted in the fields of transformer inductors, heat dissipation of electronic components, special cables, electronic packaging, and thermal conductivity potting.

Traditional thermally conductive plastics mainly use metal or inorganic filler particles with high thermal conductivity to fill the polymer matrix material uniformly.

Compared with traditional materials, thermally conductive plastics have higher flex resistance and tensile stiffness, but their impact strength is poor, which limits their application range. Only high filling can meet the thermal conductivity requirements of products, but high filling will reduce the performance of products. Mechanical properties, especially impact properties, and high-filling composite materials are also difficult to process, and the product density will not meet the requirements

At present, the thermal conductivity of composite materials prepared from polymers and carbon nanomaterials is not very high. Conduction through the polymer matrix, so it is impossible to obtain materials with excellent thermal conductivity to meet higher use requirements

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