Thermoplastic animal protein/biodegradable polyhydroxybutyrate blended material, and preparation method thereof

Abstract

The invention discloses a thermoplastic animal protein / biodegradable polyhydroxybutyrate (PHB) blended material, and a preparation method thereof. According to the present invention, 1 to 99 parts by weight of thermoplastic animal protein, 1 to 99 parts by weight of PHB, 0 to 10 parts by weight of a cross-linking agent and 0 to 10 parts by weight of a plasticizer are stirred for 5 to 20 minutes in a high-speed mixer; the resulting mixture is dried for 8 to 12 hours at a temperature of 30 to 60 DEG C; the material is then blended for 5 to 10 minutes in a double-screw extruder, with the temperature controlled at 100 to 140 DEG C; the blended material is then granulized under a temperature of 110 to 150 DEG C and a pressure of 0.1 to 1Mpa, such that the finish product is obtained. The product has good processing property, and has excellent thermoplastic processing properties and mechanical properties during procedures of extruding, blow molding, injection molding and foaming. Items produced from the product can be completely degraded after being used, and is environment-friendly. The product can be widely applied in the processing fields of chemicals, mulch films, dynamo-electrics, building materials, packaging, and environmental protection.

Description

technical field [0001] The invention relates to a thermoplastic animal protein / polyhydroxyalkanoate blend material and a preparation method thereof. Background technique [0002] Every year, 150 million tons of limited petrochemical resources such as oil and natural gas are used to chemically synthesize "synthetic polymers". In order to reduce the impact of waste synthetic polymer materials on the environment and the use of limited resources, rebuild a sustainable human Society has become the consensus of countries all over the world. To achieve the sustainable development of the world economy, one of the frontiers of related research at home and abroad is to use clean production technology to modify and synthesize renewable biomass resources into environmentally friendly polymer materials that meet the requirements of use, reducing the impact on limited resources. Consumption, to reduce the pollution of the environment after the use of materials, for this reason, related r...

AI Technical Summary

Problems solved by technology

The blending of thermoplastic animal protein / polyhydroxyalkanoate can improve the processing performance of thermoplastic animal protein, and at the same time, it can have a good plasticizing effect on polyhydroxyalkanoate, and solve the processing performance, toughness and tear resistance of polyhydroxyalkanoate Insufficient cracking performance, low elongation at break, brittle film, etc., provide a new method of producing environmentally friendly animal protein / polyhydroxyalkanoate thermoplastic materials using natural animal protein as raw material, which is a renewable Large-scale development and utilization services of resource animal protein