Freezing-resistant plastic used in extremely cold environment

Abstract

The invention discloses a freezing-resistant plastic used in an extremely cold environment, which belongs to the technical field of plastic products, and the freezing-resistant plastic comprises polyamide, polypropylene, polystyrene resin, diatomite, ultrafine calcium carbonate, silicon nitride, a composite flame retardant, a cold-resistant plasticizer, a weather-resistant agent, an anti-crackingagent, an antioxidant, an antibacterial agent and other components, and the preparation method comprises the following steps: preparing the raw material components according to parts by weight; preparing a resin material blend; fully mixing to obtain a premix; and conveying the premix into an extrusion granulator, and carrying out extrusion granulation, cooling and drying to obtain the freezing-resistant plastic. According to the freezing-resistant plastic disclosed by the invention, the polyamide, the polypropylene and the acrylate are used as main raw materials, the polyamide and the polypropylene have good low-temperature resistance, a compatilizer with specific components is added, so that the defect of poor solvent resistance of resin is overcome, and the low-temperature impact resistance of the modified plastic is greatly improved by introducing the polystyrene resin.

Description

technical field [0001] The invention relates to the technical field of plastic products, in particular to a freeze-resistant plastic used in extremely cold environments. Background technique [0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. It can freely change its composition and shape. , Colorants and other additives. Due to the light weight, good chemical stability, insulation, heat insulation and other characteristics of plastics, the application range of plastic products is becoming more and more extensive. Existing plastic products have poor tolerance to low temperature, and are very easy to become brittle and aging when used at low temperature, which greatly reduces the service life of plastic products. Therefore, it is necessary to improve the existing technology and propose a method for use in extremely cold environments. Freeze-r...

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the object of the present invention is to provide a kind of freeze-resistant plastic used in extremely cold environments. The freeze-resistant plastic of the present invention uses polyamide, polypropylene, and acrylate as main raw materials, and polyamide , polypropylene have good low-temperature resistance performance, added a specific component of compatibilizer, overcome the shortcomings of poor solvent resistance of the resin, through the introduction of polystyrene resin, the low-temperature impact resistance of modified plastics has been greatly improved

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