High-activity tricalcium phosphate for high-flame-retardant polystyrene resin and production device thereof

Abstract

The invention discloses high-activity tricalcium phosphate for high-flame-retardant polystyrene resin and a production device thereof. The main formula of the high-activity tricalcium phosphate for the high-flame-retardant polystyrene resin comprises 43 to 61 parts of polystyrene, 5 to 11 parts of polypyrrolone-modified graphene oxide, 8 to 12 parts of fumed silica, 2 to 7 parts of nanometer calcium carbonate, 1.8 to 2.5 parts of a synergistic flame retardant, 3.1 to 4.2 parts of a flame retardant, 2.1 to 2.8 parts of a smoke suppressant and 1.3 to 1.8 parts of a plasticizer. The production device is used for drying and is provided with a filtering device therein; through the filtering device, materials to be dried can be preliminarily filtered, so better drying effect can be obtained; andsince filtering is conducted during drying and filtered impurities can be discharged through a discharging valve in the filtering device, the phenomenon of incomplete filtering in the process is avoided, and filtering efficiency is effectively improved.

Description

Technical field [0001] The invention belongs to the technical field related to the production of tricalcium phosphate, and specifically relates to high activity tricalcium phosphate for high flame retardant polystyrene resin and a production device thereof. Background technique [0002] Tricalcium phosphate is also called calcium phosphate. White crystal or amorphous powder, there are many kinds of crystal transformation, mainly divided into low temperature β phase (β-TCP) and high temperature α phase (α-TCP), the phase transition temperature is 1120℃-1170℃, the melting point is 1670℃, It is acid, insoluble in water and ethanol. It is ubiquitous in human bones and is a good bone repair material. Tricalcium phosphate is a safe nutrient fortifier. It is mainly added to foods to strengthen calcium intake and can also be used to prevent or treat calcium deficiency symptoms. . At the same time, tricalcium phosphate can also be used as an anticaking agent, pH regulator, buffering ag...

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Problems solved by technology

[0004] The purpose of the present invention is to provide highly active tricalcium phosphate for high flame-retardant polystyrene resin and production equipment thereof, to solve the existing high-activity tricalcium phosphate and its high-activity flame-retardant polystyrene resin proposed in the above-mentioned background technology When the production device is drying, there may be a problem of incomplete drying due to the fact that there are many impurities in the material.

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