Degradable plastic film

Abstract

The invention relates to a degradable plastic film which comprises the following components in parts by weight: 40-60 parts of corn starch, 100 parts of low density polyethylene (LEPD), 10-20 parts of polycarbonate, 12-15 parts of ethylene/butene polymer, 5-10 parts of polyethylene wax, 2-4 parts of an antioxidant, 0.5-1 part of a ultraviolet light absorber and 4.5-6.5 parts of cedarwood oil. The oxygen-separating degradable plastic film provided by the invention can be automatically decomposed under the actions of enriched oxygen and microorganisms; the wasted film can be completely degraded and digested by the microorganisms in a natural world and carbon dioxide and water are finally generated; compared with an LDPE film with the same thickness, the degradable plastic film has the advantage that the oxygen insulating performance can be improved by 40 percent. The degradable plastic film disclosed by the invention has the advantages of simple preparation method and process, high production efficiency and easy industrial implementation; the degradable film can be produced by a general plastic film blowing machine.

Description

Technical field [0001] The invention belongs to the field of plastic film materials, in particular a degradable plastic film. Background technique [0002] The degradable film not only has the functions and characteristics of traditional plastics, but also can split and degrade in the natural environment through the action of microorganisms in the soil and water or the action of ultraviolet rays in the sun after its service life, and finally re-enter the ecology in a reduced form In the environment, return to nature. The domestically developed varieties have covered photodegradation, photobiodegradation, photooxidation biodegradation, high starch content biodegradation, high calcium carbonate-filled photooxidation degradation, full biodegradation, etc. At present, there are many materials in the degradable material market, but they are roughly divided into photothermal degradable plastics and pure biodegradable plastics. However, the existing degradable products only take into a...

AI Technical Summary

Problems solved by technology

At present, there are many materials in the degradable material market, but they are roughly divided into photothermal degradable plastics and pure biodegradable plastics. However, the existing degradable products only consider one aspect of the degradation environment, and the physical and mechanical properties of the products are The length, etc. cannot meet the actual physical performance requirements of the final product

Images