Bodegradable manihot starch based material and product thereof

A biodegradable, tapioca starch technology is applied in the field of preparation of green and environment-friendly biodegradable starch materials and its products. Excellent performance

Inactive Publication Date: 2008-06-18
吴同刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems are: firstly, the manufacturing cost is high, and the cost of degradable products is more than 15% higher than that of non-degradable products; secondly, the manufacturing process is complicated and there are problems such as sewage discharge in the modification of starch; thirdly, degradable products are generally added to plastics Photosensitizers and starches use both light and biological degradation methods, but so far the technical problem of adding more than 60% starch has not been solved, which largely restricts the popularization and application of degraded products
In addition, although the disposable paper product tableware currently used in the market has replaced some plastic products on the disposable pro

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Embodiment: a kind of actual substance percentage weight formula of biodegradable tapioca-based material of the present invention is:

[0016] Tapioca Starch 80%,

[0017] Polypropylene (powder) 8%,

[0018] LDPE 5%,

[0019] Linear low density high pressure polyethylene 1.5%,

[0020] Ethylene-vinyl acetate copolymer containing 30% to 35% VA 4%,

[0021] Titanium dioxide 1.5%.

[0022] The preparation process of the material in this example is as follows: after mixing and stirring the above six component materials evenly, put them into an SRL-Z type high-speed mixer to heat and knead them into powdery materials, and then mix the kneaded powdery materials Sent to the TE-75 twin-screw extrusion granulator for stretching, then cut the strips into pellets with a pelletizer, and inject the pellets through an injection molding machine or calender the pellets into sheets through a tableting unit. , and then through the high-speed molding machine (SG-650 high-speed moldin...

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PUM

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Abstract

The present invention relates to a preparation of bio-degradative cassava starch group material for producing disposal plastic products, comprising cassava starch, polypropylene or polythylene, low-density high-pressure polythylene, linear low-density high-pressure polythylene, thylene-vinyl acetate copolymer, titanium white powder, etc. The present invention has the advantages of low cost of raw materials, good degradation effect, simple production process and easy promotion and application. The products made of the cassava starch group material include disposal catering container and utensil, packaging container, packaging membrane, medical equipment, agricultural membrane, etc.

Description

Technical field [0001] The content of the invention belongs to the technical field of preparation of chemical materials, and relates to the preparation of a green and environment-friendly biodegradable starch material and its products. Background technique [0002] In recent years, as people's lifestyles have changed from "thrifty" to "consumer", the use of disposable plastic products has increased significantly. On the one hand, the application of a large number of plastic products has brought huge benefits and convenience to industrial and agricultural production and people's lives, and on the other hand, it has also brought serious pollution to the ecological environment, forming a "white" public hazard. To solve white pollution, different measures can be taken according to national conditions. Currently, the commonly used methods are recycling, incineration, and degradable resin / plastic, but they all have some problems and limitations in actual operation. Disposable pla...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08K3/22C08J5/00C08L23/04C08L23/12
Inventor 吴同刚
Owner 吴同刚
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