Bodegradable manihot starch based material and product thereof

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...

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 product, it also has the following five problems that restrict the promotion: First, the raw material of paper products is mainly wood. , needs to consume a large amount of wood which is in short supply in our country, causing waste; second, papermaking will produce waste water and air pollution, and the current treatment work in this area cannot keep up with it, causing great losses; third, the manufacturing cost is high, generally a paper cup The manufacturing cost of plastic cups is more than 2.5 times that of plastic cups of the same volume; Fourth, although the paper itself is degradable, it is used for oil-proof and waterproof purposes. Non-degradable; Fifth, such products are generally not suitable for heating in a microwave oven