PLA is the most common biodegradable plastic raw material. PLA is polymerized by lactic acid produced by starch fermentation. Compared with other degradable materials, the production technology of PLA is mature and the cost is low. In some industries and places, PLA is also promoted as a substitute for disposable plastics.

But is PLA biodegradable unconditionally? The answer is no.

The biodegradability of PLA is not unconditional, nor is it completely free from environmental hazards. PLA biodegradation needs to meet two basic conditions: 50% - 60% humidity and 50 - 70 ℃ temperature. Under these conditions, it is possible for microorganisms to decompose PLA gradually for months or even longer. From another point of view, PLA can not be degraded without the required condition of temperature and humidity.

In a report published by the United Nations Environment Programme in 2015, the environmental hazards of degradable plastics were mentioned, including PLA.

The report gives a clear description of the prerequisites for the biodegradability of plastics, i.e. the need for industrial composting facilities and specific temperatures.

Simply put, biodegradable plastic bags need to be completely degraded to carbon dioxide and water at a temperature of 50 degrees Celsius. However, it is difficult for the natural environment to reach the necessary temperature for degradation. If PLA plastic bags are randomly discarded, they can not be truly degraded in nature.

OKCHEM PLA, PBAT and PBS Distribution Project

OKCHEM is the strategic partner of Anhui BBCA (the largest PLA producer in China) and Xinjiang Blue Ridge Tunhe (the largest PBAT producer in China) to look for buyers and partners globally. If you want to join us in this project, please contact us at info@okchem.com. You may also make the application online at: https://www.okchem.com/agent/detail/degradableplastics/oem

Related articles:

1. About our distribution project and our partners

OKCHEM Chemicals Distribution Product List and FAQ

PLA, PBAT and PBS included in OKCHEM Distribution Project

FAQs for biodegradable plastic materials

Our Partner Xinjiang Blue Ridge Tunhe is leading globally in the production of degradable materials

Our Partner Anhui BBCA Kicked off the 2nd Phase Production for its 300 kt/a PLA Project

2. About product background introductions

What Does Biodegradable Mean?

Bioplastics, Biodegradation and Bio-based plastics

Comparison of biodegradable materials PLA, PBAT, PHA and PBS

Is PLA biodegradable unconditionally?

Biodegradable plastics — Polylactic acid (PLA)
What’s the Difference: Biodegradable and Compostable?

Harmonised standards for bioplastics products in EU

Certificates: reliable proof of biodegradability by independent institutes

3. About market analysis and new development

Anhui Ruihong New Material Kicked off the construction of project with 25 kt/a of PVA, PLA, PBAT and PBS

China’s Kanghui Petrochemical kicked off its production of 33 kt/a PBAT/PBS on December 25
New development in PLA: Durable new PLA cup can hold boiling liquids around 140 °F (60 °C)

ECP recently introduced as promising biobased compatibilizing agent for PLA/PBAT blends

Brief Highlights of PBAT and Its production in China

The state of the bioplastics market updated by European Bioplastics (EUBP)

Biodegradable product tradeshows: 2021 China International Biodegradation & Plastic Products Exhibition

Analysis of Chinese export on PBAT and PBS from 201901 to 202011

Production capacity of PLA in China expected to reach 3.3 million tons in the coming 5 years

Source: https://new.qq.com/