Is PLA plastic environmentally friendly

Plastic products can be seen everywhere in our lives and have become an indispensable daily item. We may only use disposable plastic products for a few minutes, while an ordinary plastic bag takes 20 years to decompose in the natural environment, a disposable coffee cup lined with plastic film takes 30 years, a plastic straw takes 200 years, a plastic bottle takes 450 years, and some baby diapers take 500 years…..

The harm of plastic products to the environment has been notorious, so more and more “degradable plastics” and “compostable plastics” have entered people’s vision. PLA is one of them, these plastics are indeed a more environmentally friendly choice than traditional plastics, let’s take a look at what these plastics are.

What is PLA?

Polylactic acid is PLA for short,CAS number is 26023-30-3. Polylactic acid (PLA) is a new type of biodegradable material made from starch derived from renewable plant resources such as corn. Starch raw materials through saccharification to obtain glucose, and then from glucose and a certain strain fermentation to produce high purity lactic acid, and then through chemical synthesis method to synthesize a certain molecular weight of polylactic acid. It has good biodegradability, can be completely degraded by microorganisms in nature after use, and eventually generate carbon dioxide and water, which does not pollute the environment, which is very beneficial to the protection of the environment, and is recognized as an environmentally friendly material.

The treatment method of plastic is still incineration and cremation, resulting in a large number of greenhouse gases into the air, while polylactic acid plastic is buried in the soil degradation, the resulting carbon dioxide directly into the soil organic matter or absorbed by plants, will not be discharged into the air, will not cause the greenhouse effect.

Is PLA a type of plastic?

Polylactic acid (PLA) is a biodegradable thermoplastic, PLA is thermoplastic, can be used in many fields, with its preparation of products, such as packaging materials, fibers, etc., mainly used in disposable products such as disposable tableware and packaging materials, etc. Automotive doors, footpads and seats, clothing, electrical appliances and medical health (orthopedic internal fixation materials and non-removal surgical sutures, etc.) and other fields. Compared with traditional petrochemical products, the energy consumption in the production process of polylactic acid is only 20% to 50% of the petrochemical products, and the carbon dioxide generated is only 50% of the petrochemical products. Therefore, the development of polylactic acid degradable materials is very necessary to alleviate global environmental and energy problems.

Is PLA plastic environmentally friendly?

PLA is a non-toxic, non-irritating synthetic polymer material, its raw material is lactic acid, mainly from starch (such as corn, rice) and other fermentation, can also be obtained from cellulose, kitchen waste or fish waste as raw materials. PLA raw materials come from a wide range of sources, and the products made from it can be directly composted or incinerated after use, and ultimately can completely reduce CO2 and H2O, meeting the requirements of sustainable development. The good transparency and certain toughness, biocompatibility and heat resistance of PLA are the main reasons for its wide application. Therefore, the raw material for producing polylactic acid is renewable. As a new biodegradable material, polylactic acid is widely used.

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