Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 5, Issue 1, Pages 78-84Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.6b02197
Keywords
PLA/NR; Modification; Dynamic vulcanization; Super-tough; Inter-facial reaction
Categories
Funding
- National Natural Science Foundation of China [21104038]
- Natural Science Foundation of Shandong Province [ZR2016BM17]
Ask authors/readers for more resources
In order to take advantage of the sustainability and environmental friendliness of a biobased poly(lactide) (PLA), it was used with natural rubber graft-modified glycidyl methacrylate (NR-GMA), via bulk free radical polymerization, to produce a new thermoplastic vulcanizate (TPV) by in situ dynamical vulcanization. The well-dispersed super-tough PLA-based thermoplastic vulcanizate with 20 wt % NR-GMA exhibited a greatly improved notched impact strength of 73.4 kJ/m(2) and elongation yield of 136%, which represented a 26 and 33-fold increase, respectively, compared to neat PLA. Interfacial reactive compatibilization between the PLA matrix and NR-GMA phase was confirmed by Fourier transform infrared spectroscopy (FT-IR) and dynamic mechanical analysis (DMA) and differential scanning (DSC) measurements. This strong interfacial interaction, in combination with a fine microscale and nanoscale dispersed phase structure, were responsible for the high toughness of PLA/NR-GMA TPV. These new PLA-based vulcanizates have the potential for application in electrical devices, packaging, and 3D printing materials.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available