Rheology of poly(lactic acid)/poly(trimethylene terephthalate) blends compatibilized by clay or maleic anhydride-grafted poly(ethylene-octene) elastomer
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Gwo-Geng Lin
,
Yi-Hu Song
Abstract
Blends of two biobased polymers, poly(lactic acid) and poly(trimethylene terephthalate) (PTT), were compatibilized with either maleic anhydride-grafted poly(ethylene-octene) (mPOE) or organically modified clay (Cloisite 30B). Dynamic rheological measurements revealed that the mPOE inclusion resulted in a four-fold increase in viscosity relative to the noncompatibilized blends. By loading 3 wt% Cloisite 30B, the storage moduli of the blends showed a distinct solid-like behavior and high complex viscosity in the low-frequency region, which can be interpreted by the reduced sizes of the PTT phase evidenced from the scanning electron microscopy (SEM) micrography. A temperature sweep of the viscosity of the blends starting from 180°C revealed that the existence of an unmelted PTT dispersed phase might impede the decline in viscosity with increasing temperature near the melting point of PTT. The introduced compatibilizers can restrict the temperature-dependent morphology evolution, and the use of the 3 wt% 30B clay can prohibit the morphology evolution during the temperature sweep.
Conflict of interest statement: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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©2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material properties
- Sorption capacities of chitosan/polyethylene oxide (PEO) electrospun nanofibers used to remove ibuprofen in water
- Influence of epoxidized ethylene propylene diene rubber on nonisothermal crystallization kinetics and mechanical properties of poly(butylene terephthalate)/polypropylene blend
- Polyaniline enfolded hybrid carbon array substrate electrode for high performance supercapacitors
- Neighboring group effect on the thermal degradation of polyacrylamide and its derivatives
- Rheology of poly(lactic acid)/poly(trimethylene terephthalate) blends compatibilized by clay or maleic anhydride-grafted poly(ethylene-octene) elastomer
- Preparation and assembly
- Preparation of particulate polyvinylidene fluoride membranes of different particle sizes for membrane distillation applications
- Evaluation of internal morphology and engineering properties of graphite-filled UHMWPE nanocomposites produced using a novel octa-screw kneading extruder
- Development of NIPAAm-PEG acrylate polymeric nanoparticles for co-delivery of paclitaxel with ellagic acid for the treatment of breast cancer
- Engineering and processing
- Stereocomplex formation in injection-molded poly(L-lactic acid)/poly(D-lactic acid) blends
- Chaotic mixing analysis of a novel single-screw extruder with a perturbation baffle by the finite-time Lyapunov exponent method
- Influence of talc and rubber contents on surface replication of polypropylene injection molding application to automotive plastics
Artikel in diesem Heft
- Frontmatter
- Material properties
- Sorption capacities of chitosan/polyethylene oxide (PEO) electrospun nanofibers used to remove ibuprofen in water
- Influence of epoxidized ethylene propylene diene rubber on nonisothermal crystallization kinetics and mechanical properties of poly(butylene terephthalate)/polypropylene blend
- Polyaniline enfolded hybrid carbon array substrate electrode for high performance supercapacitors
- Neighboring group effect on the thermal degradation of polyacrylamide and its derivatives
- Rheology of poly(lactic acid)/poly(trimethylene terephthalate) blends compatibilized by clay or maleic anhydride-grafted poly(ethylene-octene) elastomer
- Preparation and assembly
- Preparation of particulate polyvinylidene fluoride membranes of different particle sizes for membrane distillation applications
- Evaluation of internal morphology and engineering properties of graphite-filled UHMWPE nanocomposites produced using a novel octa-screw kneading extruder
- Development of NIPAAm-PEG acrylate polymeric nanoparticles for co-delivery of paclitaxel with ellagic acid for the treatment of breast cancer
- Engineering and processing
- Stereocomplex formation in injection-molded poly(L-lactic acid)/poly(D-lactic acid) blends
- Chaotic mixing analysis of a novel single-screw extruder with a perturbation baffle by the finite-time Lyapunov exponent method
- Influence of talc and rubber contents on surface replication of polypropylene injection molding application to automotive plastics
