What is a biodegradable plastic bag?

Biodegradable plastic bags are produced by adding a certain amount of additives, such as starch, modified starch or other cellulose, photosensitizers, biodegradable agents, etc., to make them easy to degrade in the natural environment. Biodegradable plastic bags do not pollute the environment and can be recycled.

The degradation of plastics refers to the end of the polymer life cycle and the reduction of molecular weight, manifested as brittleness, cracking, softening, hardening, and loss of mechanical strength. The degradation of ordinary plastic bags takes decades or even hundreds of years, and landfill or incineration of non degradable plastic bags can pollute the environment. Therefore, biodegradable plastic bags are a significant invention.

Degradable plastic bags can also be divided into light degradable plastics, biological degradable plastics, and water degradable plastics

Photodegradation plastic: photodegradation plastic is a kind of plastic mixed with photosensitizer to gradually decompose under sunlight. Photodegradation plastics belong to an earlier generation of degradable plastics. Its disadvantage is that the degradation time is difficult to predict due to sunshine and climate changes, so the degradation time cannot be controlled.

Biodegradable plastics: Biodegradable plastics are plastics that can be completely decomposed into low molecular weight compounds under the action of microorganisms. Its characteristic is convenient storage and transportation, with a wide range of applications. It can not only be used for agricultural film and packaging bags, but also widely used in the pharmaceutical field.

Water-degradable plastic: Water-degradable plastic refers to the addition of absorbent substances to plastic, which can be dissolved when discarded in water after use. It is mainly used in medical and sanitary equipment (such as medical gloves).

Recommand products from LYDD:

DINGCHUANG PBAT CHSW100 Bio-degradable Material

Rutile titanium dioxide TGR-613