Correlation between foam performance and molecular structure of fully biodegradable PPC-P enhanced by chain extension
Journal of Environmental Chemical Engineering, ISSN: 2213-3437, Vol: 13, Issue: 1, Page: 115292
2025
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Poly(propylene carbonate-co-phthalate) (PPC-P), initially reported and commercialized by our group, is an emerging biodegradable polymer due to its exceptional biodegradability, comprehensive mechanical performances and thermal properties. Therefore, exploiting its potential applications in foaming materials is of considerable importance. Pristine PPC-P foams show insufficient foam quality due to the inferior melt strength reported by our previous work. In this contribution, the modified PPC-Ps with crosslinked networks are successfully prepared by using tri-isocyanate as the crosslinker through the melt blending method. Besides, we also investigated how the blending strategies and crosslinker percentage affect the melt strength (including the balanced torques, gel contents, MFI values and rheological properties), mechanical properties and thermal properties. Followingly, modified PPC-P foams are obtained by using subcritical CO 2 as the blowing agent. Additionally, we established the correlation between molecular structure and foam performance including the solubility and diffusivity of CO 2, cell size, cell density, expansion ratio, and compressive strength. Finally, the effects of two PPC-Ps with different MFIs on the chain extension reaction are also studied by introducing di-isocyanate as co-crosslinker. Notably, the modified PPC-Ps exhibit elevated melt strength and viscoelasticity, enhanced mechanical property, improved thermal property as well as superior foamability. Undoubtably, this work can certainly offer a valid blending methodology to produce modified PPC-P plastic with improved comprehensive property, remarkable melt strength and enhanced foamability.
Bibliographic Details
Elsevier BV
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