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| Naji, M. |
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| Petrov, R. H. | Madrid |
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Gohs, Uwe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2021A new strategy to improve viscoelasticity, crystallization and mechanical properties of polylactidecitations
- 2021Improved rheology, crystallization, and mechanical performance of PLA/mPCL blends prepared by electron-induced reactive processingcitations
- 2020Laccase-Enzyme Treated Flax Fibre for Use in Natural Fibre Epoxy Compositescitations
- 2018Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase
- 2018Why Should the “Alternative” Method of Estimating Local Interfacial Shear Strength in a Pull-Out Test Be Preferred to Other Methods?
- 2018Enhanced Interfacial Shear Strength and Critical Energy Release Rate in Single Glass Fiber-Crosslinked Polypropylene Model Microcomposites
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article
Improved rheology, crystallization, and mechanical performance of PLA/mPCL blends prepared by electron-induced reactive processing
Abstract
<p>Biodegradable polylactide/modified polycaprolactone (PLA/mPCL) blends were successfully prepared by sustainable electron-induced reactive processing (EIReP) without introducing any chemical compatibilizers. The effects of EIReP modification and mPCL content on the properties of PLA/mPCL blends were comprehensively examined and analyzed. The dynamic rheology test showed that the complex viscosity and storage modulus of the EIReP-modified PLA/mPCL blends increased significantly, implying an improved melt strength and elasticity. The PLA crystallization was effectively affected by EIReP treatment, as evidenced by the reduced cold crystallization peak and remarkably enhanced crystallinity of the PLA phase. The crystallinity of PLA increased from 2.4 to 18.0% after EIReP treatment, and it further rose to 38.4% by introducing 10 wt % mPCL. Moreover, the isothermal crystallization rate increased by adding mPCL contents, and the blend with 5 wt % mPCL showed the lowest half crystallization time. It was found that the PLA thermal resistance investigated by dynamic mechanical analysis was effectively enhanced with the characteristics of higher modulus compared with nonmodified blends. The Charpy impact test revealed that the impact toughness of the EIReP-treated blends improved, implying a superior interfacial adhesion and chain interaction between the two polymer phases.</p>