The early biodegradable materials were mainly filled with starch-degradable PLA stics, which can save some fossil resources and reduce carbon dioxide emissions. In terms of degradation performance, the biodegradable bag made of this kind of material can be degraded, but the polyolefin polymerized with it cannot be degraded, and can only exist in nature as tiny particles, which cannot completely solve the white pollution. Will harm the ecological environment.Many people will mistakenly think that it is a biodegradable material of the above material. One of the promising materials in the future is bio-based degradable materials, which are completely biodegradable materials,It does not pollute the environment, which is very beneficial to the protection of the environment, and is recognized as an environmentally friendly material.The leading products of bio-based biodegradable materials are PLA Bio-based degradable materials are biodegradable materials based on natural polymers or polymers synthesized from natural monomers.polylactic acid ( PLA ):Degradation is divided into two stages:1, first by pure chemical hydrolysis into lactic acid monomers.2, the lactic acid monomer is degraded into carbon dioxide and water under the action of microorganisms. Biodegradable bags under natural soil or industrial compost conditions180The sky can be decomposed into carbon dioxide and water without polluting the environment.
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