Flexible hydrophilic polystyrene foam material and preparation method thereof

Abstract

The invention provides a flexible hydrophilic polystyrene foam material and a preparation method thereof. The material comprises the following components in parts by weight: 87-92 parts of polystyrene, 5-8 parts of an SBS thermoplastic elastomer and 3-5 parts of water absorption material. The water absorption material is one or more of montmorillonite, soluble starch and polyvinyl alcohol. The preparation method comprises the following steps: (1) uniformly mixing polystyrene and an SBS thermoplastic elastomer in a high-temperature mixer; and (2) adding a water absorption material, uniformly mixing all the components, taking out the material from the mixer, cooling the material to room temperature, and crushing the material. After the polystyrene foam material is extruded and foamed, the product of the polystyrene foam material has flexibility and hydrophilic performance.

Description

technical field [0001] The invention relates to a flexible and hydrophilic polystyrene foam material and a preparation method thereof, in particular to a polystyrene foam material with flexibility and hydrophilicity obtained by regulating the components of a multiphase system The preparation method belongs to the preparation and performance research of plastic foam materials. Background technique [0002] Foam plastic is a kind of polymer material formed by dispersing a large number of gas micropores in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and its dielectric performance is better than that of matrix resin. It has a wide range of uses. Almost any kind of plastic can be made into foam. The structure of the cells has a significant impact on the performance of foamed plastics. In general, closed-cell foamed plastics have higher mechanical strength and low water absorption; while open-celled foamed ...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that in the current application of polystyrene foam trays, the blood water exuded from the raw meat placed on the tray cannot flow uniformly at the bottom of the tray and penetrate into the interior of the open-cell foam, and the current polystyrene foam trays have insufficient flexibility , prepared a flexible and hydrophilic polystyrene foam material, further developed the product grade of foam plastic tray, and the product has remarkable flexibility and hydrophilicity