Science & Technology Bureau of Jilin Province of China(20126023);National High Technology Research and Development Program of China (863 Program)(2012AA062904);National Natural Science Foundation of China(51021003)
Dan-dan Wu, Wu Li, Yan Zhao, 等. Thermal, Mechanical and Rheological Properties of Biodegradable Poly(propylene carbonate) and Poly(butylene carbonate) Blends[J]. Chinese Journal of Polymer Science, 2015,33(3):444-455.
Dan-dan Wu, Wu Li, Yan Zhao, et al. Thermal, Mechanical and Rheological Properties of Biodegradable Poly(propylene carbonate) and Poly(butylene carbonate) Blends[J]. Chinese Journal of Polymer Science, 2015, 33(3): 444-455.
Dan-dan Wu, Wu Li, Yan Zhao, 等. Thermal, Mechanical and Rheological Properties of Biodegradable Poly(propylene carbonate) and Poly(butylene carbonate) Blends[J]. Chinese Journal of Polymer Science, 2015,33(3):444-455.DOI: 10.1007/s10118-015-1597-z.
Dan-dan Wu, Wu Li, Yan Zhao, et al. Thermal, Mechanical and Rheological Properties of Biodegradable Poly(propylene carbonate) and Poly(butylene carbonate) Blends[J]. Chinese Journal of Polymer Science, 2015, 33(3): 444-455.DOI: 10.1007/s10118-015-1597-z.
Thermal, Mechanical and Rheological Properties of Biodegradable Poly(propylene carbonate) and Poly(butylene carbonate) Blends
Poly(propylene carbonate) (PPC) was melt blended in a batch mixer with poly(butylene carbonate) (PBC) in an effort to improve the toughness of the PPC without compromising its biodegradability and biocompatibility. DMA results showed that the PPC/PBC blends were an immiscible two-phase system. With the increase in PBC content
the PPC/PBC blends showed decreased tensile strength
however
the elongation at break was increased to 230% for the 50/50 PPC/PBC blend. From the tensile strength experiments
the Pukanszky model gave credit to the modest interfacial adhesion between PPC and PBC
although PPC/PBC was immscible. The impact strength increased significantly which indicated the toughening effects of the PBC on PPC. SEM examination showed that cavitation and shear yielding were the major toughening mechanisms in the blends subjected the impact tests. TGA measurements showed that the thermal stability of PPC decreased with the incorporation of PBC. Rheological investigation demonstrated that the addition of PBC reduced the value of storage modulus
loss modulus and complex viscosity of the PPC/PBC blends to some extent. Moreover
the addition of PBC was found to increase the processability of PPC in extrusion. The introduction of PBC provided an efficient and novel toughened method to extend the application area of PPC.
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references
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Thermal, Mechanical and Rheological Properties of Eco-friendly Poly(propylene carbonate)/Poly(1,2-propylene succinate) Blends
Effects of Different Nucleating Agents, Annealing and Pre-stretching Process on the Crystallinity and Mechanical Properties of Poly(butylene carbonate)
Synthesis and Properties of Poly(ethylene succinate)-b-poly(butylene carbonate) Multiblock Copolymers
Unidirectional Pre-stretching and Isothermal Annealing Reinforced Poly(butylene carbonate) Sheets at Room Temperature
Durable Anti-fogging and Abrasion-resistant Coatings Based on Polyoxometalates-Hydrophilic Resin Composites with Enhanced Cohesion and Adhesion
相关作者
Dan-dan Wu
Wu Li
Hong-yu Liang
San-rong Liu
Jian-yong Fang
Hui-liang Zhang
Li-song Dong
Rong Wu
相关机构
Key Laboratory of Polymer Ecomaterials, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences
University of Chinese Academy of Sciences
School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University