增塑剂
腰果酚
生物降解
化学
环境污染
有机化学
化学工程
环氧树脂
环境保护
环境科学
工程类
作者
Yun Hu,Yu Bei,Caiying Bo,Fei Hu,Lihong Hu,Yonghong Zhou,Puyou Jia
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2023-01-26
卷期号:11 (5): 1690-1700
被引量:9
标识
DOI:10.1021/acssuschemeng.2c05503
摘要
The most widely used phthalic ester plasticizers are reproductive toxic and nonbiodegradable. Developing biodegradable plasticizers from biomass resources remains a great challenge for the enrichment and pollution of plasticizers that seriously damage the environment. In this study, a biodegradable plasticizer (CEPT, cardanol-based epoxy plasticizer containing a triazine ring) was fabricated and derived from cardanol via acid-free catalysis. Subsequently, the essential performances, including mechanical properties, thermal degradation, thermal aging properties, solvent extraction resistance, and the microstructure of polyvinyl chloride plasticized with CEPT, were investigated. The mechanism behind these performances was explored. In addition, the biodegradability of CEPT was studied in active soil and in the Tenebrio molitor digestive system. The degradation products were obtained from the two research systems and characterized via Fourier-transform infrared spectroscopy, proton nuclear magnetic resonance, electrospray ionization mass spectrometry, and gas chromatography–mass spectrometry. The results illustrated that CEPT did undergo biodegradation and produced small-molecular components. The insect degradation method of biomass plasticizers proposed an original and available strategy for prevention of the pollution problem of plasticizers.
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