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

A polyhydroxyalkanoate and animal protein technology, which is applied in the field of thermoplastic animal protein/polyhydroxyalkanoate blend materials and its preparation, can solve the problems of low elongation at break, insufficient toughness and tear resistance, and brittle films and other problems, to achieve good compatibility, excellent comprehensive mechanical properties, and avoid phase separation

Inactive Publication Date: 2011-10-19
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Take 50 parts of thermoplastic animal protein and 50 parts of polyhydroxybutyrate by weight, stir in a high-speed mixer for 5 minutes, dry at a temperature of 30°C for 12 hours, and control the temperature at 100°C. Melting and blending in an extruder for 5 minutes, and granulating at 110° C. and 0.1 MPa to obtain a fully biodegradable thermoplastic animal protein / polyhydroxyalkanoate blend material.

Embodiment 2

[0020] Example 2: Take 60 parts of thermoplastic animal protein, 40 parts of polyhydroxybutyrate-hydroxyvalerate, and 2 parts of maleic anhydride in a high-speed mixer, stir for 7 minutes, and dry at a temperature of 40 ° C for 10 hours. The blend was melt-blended in a twin-screw extruder for 6 minutes under temperature control at 110° C., and pelletized at 120° C. and 0.3 MPa to obtain a fully biodegradable thermoplastic animal protein / polyhydroxyalkanoate blend material.

Embodiment 3

[0021] Example 3: Take 70 parts of thermoplastic animal protein, 30 parts of polybutylene succinate and 5 parts of dibutyl phthalate by weight, stir in a high-speed mixer for 8 minutes, and dry at a temperature of 50 ° C for 8 hours , the temperature was controlled at 120°C, and the molten blend was blended in a twin-screw extruder for 8 minutes, and pelletized at 130°C and 0.5 MPa to obtain a completely biodegradable thermoplastic animal protein / polyhydroxyalkanoate blend material.

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): C08L89/00C08L67/04B29C47/92B29B9/06B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92514B29C2948/92704B29C2948/92895
Inventor 罗学刚徐东
Owner SOUTHWEAT UNIV OF SCI & TECH
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