Food and beverage giants have promised to cancel plastic straws, and biodegradable PLA straws have b

Many large companies in the food and beverage industry have pledged to eliminate the use of plastic straws in the past year because they have to adapt to consumer expectations and changes in legislation.

In March 2020, the European Union stated that it was considering banning member states from using plastic straws in the future, and companies such as McDonald's, Diageo and Paul Rica have pledged to phase out the use of plastic straws.

Earlier, Starbucks announced that its stores will completely phase out disposable plastic straws by 2020 and replace them with paper, or compostable plastic, etc., or use straws made of recyclable materials, or use straws that do not require straws. Suction cup lid. The elimination of plastic straws is the general trend, so the future development of the PLA industry deserves continuous attention.

4. The difference between "degradable" and "compostable"

In typical parlance, the meaning of the word biodegradable is different from compost. Although biodegradable refers to the natural disintegration of an object into its basic components, the specific requirements for "composting" these basic components are organic compounds. Many plastic companies have begun to release plastics that claim to use "compostable" forms, usually listed as an ingredient in products made from corn starch. However, these claims are debatable.

The self-defined compost incorporates the operation of the biodegradable plastic industry. This is a material that can be biodegraded in a composting field and other visually indistinguishable, and it is decomposed into carbon dioxide, water, inorganic compounds and biomass in the same way The rate is comparable to known compostable materials.

It must be pointed out that "carbon dioxide, water, inorganic compounds, and biomass" includes every substance in the known universe, releasing plastic companies to make compostable plastic bags, utensils, etc. to provide them with any substance. "Inorganic materials" are included to exclude compost, or humus, which are purely organic materials and are regarded as high-end products. In fact, according to the ASTM definition, the only criterion required for plastic to be called compostable is that it has to appear to go at the same rate as anything else, what people already know is composting according to the traditional definition.

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