Environment-friendly imitation ceramic tableware material and preparing method thereof

Abstract

An environment-friendly imitation ceramic tableware material is prepared from polylactic acid, calcium phosphate biological ceramic, hemp cellulose and a processing and modifying assistant. The preparing method comprises the following steps of: drying polylactic acid, calcium phosphate biological ceramic and hemp cellulose respectively; premixing the polylactic acid, calcium phosphate biological ceramic powder, hemp cellulose and the processing and modifying assistant; and feeding the premixed material into a granulating machine for plasticizing and mixing, and carrying out extrusion and granulation to obtain the environment-friendly imitation ceramic tableware material. The environment-friendly imitation ceramic tableware material provided by the invention has the advantages that tripolycyanamide and formaldehyde are not contained, and the problems that the conventional imitation ceramic tableware has residual tripolycyanamide and formaldehyde monomer and the tableware releases toxicity when being heated in a microwave oven can be solved, so that the tableware is safe and reliable, and can be degraded or utilized by thermoplastic processing after being discarded; the calcium phosphate biological ceramic powder and the hemp cellulose are added to the material, so that the strength, toughness and heat-resistant quality of the polylastic acid material are improved. The environment-friendly imitation ceramic tableware material can replace the conventional tripolycyanamide imitation ceramic tableware material, is convenient in raw material source and simple to process, can be produced by the conventional plastic equipment, and is easy for industrial production and application of imitation ceramic tableware.

Description

technical field [0001] The invention relates to an environment-friendly imitation porcelain tableware material and a preparation method thereof, in particular to an environment-friendly imitation porcelain tableware material and a preparation method thereof. Background technique [0002] Imitation porcelain tableware, also known as melamine tableware, is made of amino molding compound. It is made by reacting melamine and formaldehyde into melamine-formaldehyde resin under certain conditions, and then adding auxiliary materials such as curing agent, cellulose and coloring agent. The material is imitation tableware after being molded and pressed. The tableware products made of melamine tableware materials are firm, smooth surface, high temperature resistance, water impact resistance, not fragile, and have the characteristics of ceramic texture. It has become one of the indispensable materials for tableware manufacturing, especially in restaurants, restaurants and student can...

AI Technical Summary

Problems solved by technology

In recent years, with the improvement of environmental protection technology requirements for tableware at home and abroad, the melamine tableware made of this material mainly has the following deficiencies: one is the health and health impact of melamine and formaldehyde monomers left in the tableware; The toxicity of melamine released by heating in a microwave oven; the third is the problem of non-degradable and thermoplastic processing and utilization of tableware after being discarded

However, direct use has poor temperature resistance, and the strength and toughness are not ideal.

Because the heat distortion temperature of general polylactic acid is below 60 ℃, the disadvantages of relatively low density and poor toughness of imitation porcelain limit its application in imitation porcelain tableware.