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What are the degradable materials?

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Ask which expert, what are the characteristics of degradable materials? What is the difference between PET /PE /BOPP and these materials? Can they be converted to each other
is there any degradable material suitable for fruit preservation bags and boxes

thermoplastic starch plastics, aliphatic polyester, polylactic acid, starch /polyvinyl alcohol, starch modified (or filled) polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS, etc

classification of degradable materials:
according to the external factors of degradation, it can be divided into:
1 Photodegradable materials: degraded due to the action of sunlight
2. Biodegradable materials: degraded by natural microorganisms such as fungi and bacteria, and finally decomposed into carbon dioxide and water
3. Environmental degradation materials: degraded under natural environmental conditions such as light, heat, water, polluting compounds, microorganisms, insects and mechanical forces.

environmental degradable plastics are generally divided into two categories: photodegradation and biodegradation (another is photodegradation and biodegradation). Among them, photodegradable plastics are the introduction of light sensitizing groups into plastic molecules or the addition of light sensitizing additives to materials; Biodegradable materials are mainly natural macromolecules such as cellulose and other modifiers; Add natural biodegradable substances such as starch to plastics or degradable substances such as polycaprolactone and polycaprolol synthesized by chemical industry
Pet /PE /BOPP is a composite gas barrier material composed of three kinds of plastics, which has nothing to do with it
Pet polyethylene terephthalate; Mineral water bottle
PE polyethylene; Plastic film in greenhouse
BOPP biaxially oriented polypropylene film;

Baidu’s PP forum is full of friends who make degradable films

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