Composite plastic sheet and preparation method thereof

Abstract

The invention discloses a composite plastic sheet and a preparation method thereof. The composite plastic sheet is prepared by mixing the following components: 1-2 parts of glutinous rice flour, 1-2 parts of cassava starch, 2-4 parts of calcium carbonate powder, 7-12 parts of hydrogen peroxide, 1-2 parts of carbon fiber, 1-2 parts of D-cellobiose, 1-2 parts of polyhydroxyalkanoate, 2-3 parts of gelatin, 15-20 parts of synthetic resin, 5-6 parts of a plasticizer and 1-2 parts of additives. The preparation method of the composite plastic sheet comprises the following steps: firstly mixing the glutinous rice flour, the cassava starch and the calcium carbonate powder, then mixing the other raw materials, melting and blending, hot pressing and then cold pressing to obtain the plastic sheet. According to the plastic sheet, the materials such as the glutinous rice flour and the cassava starch are used as the raw materials and have a biodegradation function; the selected other raw materials are non-toxic and environmentally friendly; an ignition test proves that the plastic sheet is uninflammable; the weight of the plastic sheet is reduced by about 89.1% after the plastic sheet is degradedfor 12 months; the preparation method is simple and is easy to operate, and energy consumption is low; the sheet can be directly and rapidly cut to produce finished products such as plastic bags andpackaging bags; the plastic sheet can be widely popularized and used in the industry.

Description

technical field [0001] The invention relates to a composite plastic sheet and a preparation method thereof, belonging to the field of plastic processing. Background technique [0002] Plastic is a very common material, such as disposable lunch boxes, plastic bags, packaging bags, etc. are all made of plastic, which is low in production cost and easy to use. However, most of these plastic products are directly discarded after being used once. , its degradation rate is very slow, and as the degradation progresses, toxins will be released, which will cause great damage to the natural environment and ecology, and most of the plastic products are flammable. The chemical substances produced are carcinogenic and will affect the atmospheric environment. If the fire is too large, it will also cause a fire, which poses a great hazard to people's lives and property safety. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the purpos...

AI Technical Summary

Problems solved by technology

[0002] Plastic is a very common material, such as disposable lunch boxes, plastic bags, packaging bags, etc. are all made of plastic, which is low in production cost and easy to use. However, most of these plastic products are directly discarded after being used once. , its degradation rate is very slow, and as the degradation progresses, toxins will be released, which will cause great damage to the natural environment and ecology, and most of the plastic products are flammable. The chemical substances produced are carcinogenic and will affect the atmospheric environment. If the fire is too large, it will cause a fire, which poses a great hazard to people's lives and property safety.

Images