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Cellulose enhanced starch plastic, preparation method and application thereof

A technology of starch-based plastics and cellulose, applied in the field of polymer materials, can solve the problems of poor mechanical properties of bio-based plastics, and achieve the effects of improved mechanical properties, excellent performance and wide application.

Inactive Publication Date: 2017-06-13
WUHAN HUALI ENVIRONMENT PROTECTION SCI & TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a cellulose-reinforced starch-based plastic to overcome the poor mechanical properties of existing bio-based plastics

Method used

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  • Cellulose enhanced starch plastic, preparation method and application thereof
  • Cellulose enhanced starch plastic, preparation method and application thereof
  • Cellulose enhanced starch plastic, preparation method and application thereof

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Embodiment Construction

[0018] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] (1) Mix polyolefin, cellulose or lignin modified starch, plasticizer, heat stabilizer and internal lubricant, special extrusion additives and fillers evenly, add them to a high-speed mixer, and heat at 60-150°C Stir for 5-30 minutes and mix well.

[0020] (2) Reaction in a twin-screw extruder: Add the material obtained in step (1) into a twin-screw extruder, knead at 130-220° C., and granulate to obtain cellulose-reinforced starch-based plastics.

[0021] (3) The pellets obtained in the step (2) are subjected to secondary pr...

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Abstract

The invention provides a cellulose enhanced starch plastic which comprises the following raw materials by weight percent: 20-60% of polyolefin, 25-70% of cellulose or lignin modified starch, 5-10% of additive, 0-5% of extruding auxiliaries and 0-15% of padding, wherein the additive is one or more of a plasticizer, a heat stabilizer and an internal lubricant; the extruding auxiliaries are one or more of organic tin sulfate and ethylene stearamide; the padding is one or more of talcum powder, calcium carbonate and silicon dioxide. The invention also provides a preparation method of the cellulose enhanced starch plastic and a hollow extruding panel prepared from the cellulose enhanced starch-base plastic. According to the invention, the reproducible raw materials, such as cellulose or lignin modified starch, are mixed with polyolefin; the modified starch can be uniformly dispersed in a polyolefin matrix; compared with the plastic adopting single starch or cellulose, the acquired plastic product has an obviously increased mechanical property.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a cellulose-reinforced starch-based plastic, a preparation method thereof, and a hollow extruded plate prepared by using the cellulose-reinforced starch-based plastic. Background technique [0002] As people pay more and more attention to environmental issues, bio-based plastics, as a multi-disciplinary frontier field such as polymer materials, life sciences and mechanical engineering, are becoming a research hotspot that is generally valued by countries all over the world. The U.S. Department of Energy (DOE) expects the use of polymer materials from plant-based renewable resources to increase to 10% by 2020, and more likely to 50% by 2050. [0003] Bio-based plastics refer to plastics made of natural substances such as starch and fiber as part of their raw materials. They are renewable and can reduce or even zero greenhouse gas carbon dioxide emissions. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L23/12C08L1/02C08L97/00C08L63/00C08L23/06C08K5/12C08K5/053
CPCC08L23/06C08K2201/014C08L3/02C08L23/12C08L2201/06C08L2205/035C08L1/02C08L97/005C08L63/00C08K5/12C08K5/053
Inventor 王继鑫任超汤运章张先炳曾勤
Owner WUHAN HUALI ENVIRONMENT PROTECTION SCI & TECH
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