Poly (propylene carbonate)-based in situ nanofibrillar biocomposites with enhanced miscibility, dynamic mechanical properties, rheological behavior and extrusion foaming ability

Kuang, Tairong; Li, Kaican; Chen, Binyi; Peng, Xiangfang

doi:10.1016/j.compositesb.2017.05.015

Cited by 64 publications

(36 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These improvements were attributed to the introduction of PBS rigid domains and the PTFE nano‐fibrillar network restricting the mobility of PPC molecular chain during compressive stress, resulting in much stronger cell walls, which further enhanced the stiffness of the substrate material. Moreover, the improved cell density in PPC/PBS/PTFE foams with more uniform and smaller cell size caused a rapid stress transfer, which also contributed to the enhancement of mechanical properties . Similar to in situ nano‐fibrillar PPC/PBS/PTFE composite foams, in situ fibrillated PPC/PS/PTFE composite foam showed a remarkable enhancement in the processability and performances as compared to neat PPC .…”

Section: Ppc Compositesmentioning

confidence: 93%

“…Moreover, the improved cell density in PPC/PBS/PTFE foams with more uniform and smaller cell size caused a rapid stress transfer, which also contributed to the enhancement of mechanical properties. [93] Similar to in situ nano-fibrillar PPC/PBS/PTFE composite foams, in situ fibrillated PPC/PS/PTFE composite foam showed a remarkable enhancement in the processability and performances as compared to neat PPC. [94] These improvements are pertaining to the synergistic effect of the enhanced CO 2 affinity, the heterogeneous nucleation effect, and changes in system melt viscosity.…”

Section: Ppc-based Composite Foamsmentioning

confidence: 95%

“…Biodegradable polymer‐based foams are more attractive to develop sustainable materials including automotive parts, sporting equipment, acoustic dampening, thermal insulation, microelectronic applications, tissue engineering, and packaging materials. In situ nano‐fibrillar PPC/PBS/polytetrafluoroethylene, PTFE, and PPC/PS/PTFE composite foams were produced by triple‐screw compounding followed by continuous extrusion foaming process with supercritical carbon dioxide as a blowing agent . The synergistic effect of in situ nano‐fibrillar PTFE physical network formation and dispersion of PBS domain in the PPC showed remarkable enhancement in storage modulus, glass transition temperature, damping effect, and complex viscosity compared to neat PPC.…”

Section: Ppc Compositesmentioning

confidence: 99%

“…In situ nano-fibrillar PPC/PBS/polytetrafluoroethylene, PTFE, and PPC/PS/PTFE composite foams were produced by triple-screw compounding followed by continuous extrusion foaming process with supercritical carbon dioxide as a blowing agent. [93,94] The synergistic effect of in situ nano-fibrillar PTFE physical network formation and dispersion of PBS domain in the PPC showed remarkable enhancement in storage modulus, glass transition temperature, damping effect, and complex viscosity compared to neat PPC. The PPC/PPB/PTFE composite foam processed at 90 °C showed an optimum cell diameter and cell density.…”

Section: Ppc-based Composite Foamsmentioning

confidence: 99%

See 3 more Smart Citations

Carbon Dioxide–Derived Poly(propylene carbonate) as a Matrix for Composites and Nanocomposites: Performances and Applications

Muthuraj

Mekonnen

2018

Macro Materials & Eng

View full text Add to dashboard Cite

The conversion of CO2 into polymers such as poly(propylene carbonate) (PPC) can contribute to the reduction of dependence on fossil fuel resourced polymers. PPC is a polymer synthesized from the catalyzed copolymerization between CO2 and propylene oxide. The global demand for renewable and biodegradable polymers coupled with the recent success in catalysis for the copolymerization of CO2 with epoxides has paved the way for an increased interest and growth in PPC polymers. On the contrary, the extensive utilization of PPC in many applications is still challenging due to its poor thermal stability, mechanical strength, and dimensional stability. Thus, many research efforts currently focus on improving these limitations. On the other hand, polymer processing and application development efforts have continued to utilize the existing PPC. This article presents a comprehensive review of PPC polymer as a matrix component of polymer composites and nanocomposites. Progress in current research on PPC‐based material applications, including industrial packaging, electromagnetic shielding, energy storage, and biomedical applications are included. A critical review of the biodegradability, compostability, and overall sustainability of PPC is also conducted. Finally, challenges that limit the extensive use of such materials, and future research and development directions are highlighted.

show abstract

Section: Ppc Compositesmentioning

confidence: 93%

Section: Ppc-based Composite Foamsmentioning

confidence: 95%

Section: Ppc Compositesmentioning

confidence: 99%

Section: Ppc-based Composite Foamsmentioning

confidence: 99%

See 2 more Smart Citations

Carbon Dioxide–Derived Poly(propylene carbonate) as a Matrix for Composites and Nanocomposites: Performances and Applications

Muthuraj

Mekonnen

2018

Macro Materials & Eng

View full text Add to dashboard Cite

show abstract

“…From the time, the shish-kebab was first reported, it has attracted immense research interest because of its remarkable improvement of some physical properties and significant theoretical values [1][2][3][4][5][6][7][8][9][10]. However, although conventional injection moulding (CIM) is the most common and convenient polymer processing method for the fabrication of polymer products with different geometric profiles, it is still a great challenge to form rich shish-kebabs in injection-moulded products due to the relaxation of oriented molecular chains and the 'weak' shear flow [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Large-scale formation of shish-kebab in water-assisted injection-moulded high-density polyethylene with a high-molecular weight

2019

View full text Add to dashboard Cite

To promote flow-induced orientation and reserve the formation of the shish-kebab structure, a modified injectionmoulding technology named water-assisted injection moulding (WAIM), was applied to provide twice the shear flow and a rapid cooling rate on high-molecular weight high-density polyethylene (HDPE) melt in a mould cavity. Large-scale distribution of highly oriented shish-kebab was successfully achieved in a WAIM sample with a high-molecular weight. More importantly, the high-orientation degree of lamellae (larger than 0.4) in the thickness direction for a high-molecular weight WAIM sample is >60%, which is much more than a conventional injection-moulded sample (15%). This work provides a new insight to achieve injection-moulded products with enhanced oriented structures.

show abstract

Polyamide 6 modified polypropylene with remarkably enhanced mechanical performance, thermal properties, and foaming ability via pressure‐induced‐flow processing approach

Chen

Peng

et al. 2018

Adv Polym Technol

View full text Add to dashboard Cite

Pressure‐induced‐flow (PIF) processing has been considered as an efficient approach to prepare high‐performance polymer materials. In this study, the effects of PIF processing on various properties of PP/PA6 blend, including the microstructure, thermal, and mechanical properties, as well as foaming behavior, were investigated. The results showed that PIF processing had a significant effect on the microstructure of PP/PA6 blend. Meanwhile, the thermal stability of PP/PA6 blend was greatly improved. Compared to its counterparts without PIF processing, the mechanical strength of PIF PP/PA6 blend was remarkably enhanced, which was even higher than that of PIF PP (Polypropylene). PIF processing could both strengthen and toughen PP/PA6 blend. Dynamic mechanical analysis (DMA) results also indicated that PIF PP/PA blend had higher strength under dynamic mechanical conditions. Furthermore, the PP/PA6 foams with and without PIF processing were fabricated using a batch foaming method. With PIF processing, the resultant PP/PA6 blend displayed a significantly enhanced foaming ability with higher cell density and larger expansion ratio.

show abstract

Poly (propylene carbonate)-based in situ nanofibrillar biocomposites with enhanced miscibility, dynamic mechanical properties, rheological behavior and extrusion foaming ability

Cited by 64 publications

References 63 publications

Carbon Dioxide–Derived Poly(propylene carbonate) as a Matrix for Composites and Nanocomposites: Performances and Applications

Carbon Dioxide–Derived Poly(propylene carbonate) as a Matrix for Composites and Nanocomposites: Performances and Applications

Large-scale formation of shish-kebab in water-assisted injection-moulded high-density polyethylene with a high-molecular weight

Polyamide 6 modified polypropylene with remarkably enhanced mechanical performance, thermal properties, and foaming ability via pressure‐induced‐flow processing approach

Contact Info

Product

Resources

About