Study on Rapid Detection Method for Degradation Performance of Polyolefin-Based Degradable Plastics

Area of Science:

• Materials Science
• Environmental Science
• Polymer Chemistry

Background:

• Accurate assessment of degradable plastic performance is crucial.
• Current methods for polyolefin-based plastics are time-consuming.
• Need for efficient and reliable degradation detection.

Purpose of the Study:

• Introduce the concept of bioassimilated carbon for plastic degradation.
• Develop a method to detect carbonyl index and bioassimilated carbon conversion rate.
• Establish a faster and more efficient assessment for degradable plastics.

Main Methods:

• Proposed the concept of bioassimilated carbon (bioactive, hydrophilic organic carbon).
• Developed a detection method for carbonyl index and bioassimilated carbon conversion rate.
• Applied the method to polyolefin-based degradable plastics.

Main Results:

• A bioassimilated carbon conversion rate >70% can replace traditional biodegradation rate.
• Detection cycle shortened from 1 year to 1 month, improving efficiency.
• Provided detection methods for polyolefin microplastics.

Conclusions:

• Bioassimilated carbon conversion rate is a reliable indicator for plastic degradation.
• The new method significantly reduces testing time and enhances efficiency.
• This approach offers a promising standard for assessing plastic degradation performance.