The Material Of Pla Material, Is It Toxic?

PLA material is short for polylactic acid, all written as: polylactic acid. It is mainly obtained by the fermentation of plant starch. It is a new type of environmental protection and pollution-free material. Due to the launch time is not very long, the domestic promotion is not enough, many people do not understand this material, and even some questions about its safety.

PLA is very suitable for the manufacture of disposable tableware, pure raw material temperature resistance of 60 degrees, after modification can reach 110 degrees or more. Compared with other such as PP, PS, PET, etc., PLA is safer, has good toughness, does not break, and can be completely degraded. However, because the raw material is opaque or translucent, it can not be as beautiful as PP tableware, generally milky white. After modification, it can also be more transparent, but there is still a distance from the transparency of PP and PET materials. Now foreign advocates of environmental protection and low-carbon people, have begun to use PLA cups/LIDS, bowls, forks and spoons instead of PP, PS, PET disposable tableware.

PLA is 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, after use, it can be completely degraded by microorganisms in nature under specific conditions, 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 green polymer material.

PLA PLA has good thermal stability, processing temperature 170 ~ 230℃, has good solvent resistance, can be processed in a variety of ways, such as extrusion, spinning, biaxial stretching, injection blow molding. Products made of polylactic acid in addition to biodegradation, biocompatibility, gloss, transparency, feel and heat resistance, but also have a certain degree of bacterial resistance, flame retardant and UV resistance, so the use is very wide, can be used as packaging materials, fibers and nonwovens, etc. At present, it is mainly used in disposable tableware, clothing (underwear, outerwear), industry (construction, agriculture, forestry, papermaking) and medical and health fields.