Degradable polyethylene plastic and preparation method thereof

Abstract

The invention provides a degradable polyethylene plastic. The degradable polyethylene plastic is prepared from the following raw materials in parts by weight: 75-85 parts of polyethylene, 15-25 partsof polyvinyl alcohol, 15-25 parts of modified starch, 5-8 parts of dicumyl peroxide, 7-9 parts of ethylene-vinyl acetate copolymer, 9-11 parts of hydroxypropyl cellulose, 5-7 parts of a silane coupling agent, 4-6 parts of glycerol monostearate and 26-32 parts of ethylene glycol, wherein the modified starch comprises the following raw materials in parts by weight: 90-100 parts of starch, 2-4 partsof carboxymethyl starch, 1-2 parts of urea, 1.5-3 parts of polycaprolactone, 1.2-2 parts of dioctyl phthalate and 1.5-3 parts of a castor oil-ethylene oxide condensation compound. According to the degradable polyethylene plastic disclosed by the invention, the degradability of the polyethylene plastic is improved, so that the obtained polyethylene plastic can be well degraded, and the environment-friendly performance is good. The invention further provides a preparation method of the degradable polyethylene plastic.

Description

technical field [0001] The invention belongs to the technical field of polyethylene materials, in particular to a degradable polyethylene plastic and a preparation method thereof. Background technique [0002] Due to its light weight and non-toxicity, polyethylene has the advantages of excellent dielectric properties, chemical stability and corrosion resistance, and it is cheap and easy to form and process, so it can be widely used in the packaging industry. With the development of social economy and the advancement of science and technology, people's awareness of environmental protection is getting higher and higher, and the problem of white pollution caused by plastic waste is also getting more and more attention. Therefore, materials with biodegradability have become the development of the times. However, although the existing plastics can be well degraded into fragments in the exposed environment, urban garbage tends to be landfilled, and its degradation effect is not ob...

AI Technical Summary

Problems solved by technology

With the development of social economy and the advancement of science and technology, people's awareness of environmental protection is getting higher and higher, and the problem of white pollution caused by plastic waste is also getting more and more attention. Therefore, materials with biodegradability have become the development of the times. However, although the existing plastics can be well degraded into fragments in the exposed environment, urban waste tends to be landfilled, and its degradation effect is not obvious