Simultaneous plasticization and blending of isolate soy protein with poly[(butylene succinate)-co-adipate] by one-step extrusion process

2018 ◽  
Vol 135 (27) ◽  
pp. 46442 ◽  
Author(s):  
Jennifer Renoux ◽  
Jagadeesh Dani ◽  
Catherine Douchain ◽  
Kalappa Prashantha ◽  
Patricia Krawczak
2021 ◽  
Vol 36 (2) ◽  
pp. 219-227
Author(s):  
P. Saiprasit ◽  
A. K. Schlarb

Abstract Poly(lactic acid) (PLA)/poly(butylene adipate-co-terephthalate) (PBAT)-based nanocomposites filled with 1 vol.% silicon dioxide nanoparticles (nano-SiO2) were prepared using a co-rotating twin-screw extruder and injection molding. The nanocomposites with various blending sequences were investigated using PLA-based and PBAT-based nanocomposite masterbatches. Morphology of the PLA/PBAT/SiO2 nanocomposites was examined using a scanning electron microscope (SEM) and a focused ion beam (FIB) SEM. It is found that the nano-SiO2 locates in the original polymer phase, in which it is firstly incorporated in the masterbatch process, as well as at the interface between the two polymers. However, as the residence time in the extrusion process increases, the nanoparticles migrate from the original phase to the interface, governed by the thermodynamic driving force. The best optimization of mechanical properties is achieved by using the PBAT-based masterbatches with a one-step process or short residence time. The processing history, therefore, has a tremendous impact on the final properties of the resulting materials.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Vijay S. Wadi ◽  
Kishore K. Jena ◽  
Kevin Halique ◽  
Brigita Rožič ◽  
Luka Cmok ◽  
...  

Abstract In this work, we demostrate the preparation of low cost High Refractive Index polystyrene-sulfur nanocomposites in one step by combining inverse vulcanization and melt extrusion method. Poly(sulfur-1,3-diisopropenylbenzene) (PS-SD) copolymer nanoparticles (5 to 10 wt%) were generated in the polystyrene matrix via in situ inverse vulcanization reaction during extrusion process. Formation of SD copolymer was confirmed by FTIR and Raman spectroscopy. SEM and TEM further confirms the presence of homogeneously dispersed SD nanoparticles in the size range of 5 nm. Thermal and mechanical properties of these nanocomposites are comparable with the pristine polystyrene. The transparent nanocomposites exhibits High Refractive Index n = 1.673 at 402.9 nm and Abbe’y number ~ 30 at 10 wt% of sulfur loading. The nanocomposites can be easily processed into mold, films and thin films by melt processing as well as solution casting techniques. Moreover, this one step preparation method is scalable and can be extend to the other polymers.


2009 ◽  
Vol 48 (10) ◽  
pp. 4817-4825 ◽  
Author(s):  
Yi-Dong Li ◽  
Jian-Bing Zeng ◽  
Wen-Da Li ◽  
Ke-Ke Yang ◽  
Xiu-Li Wang ◽  
...  

2019 ◽  
Vol 764 ◽  
pp. 138144 ◽  
Author(s):  
Peng Peng ◽  
Jia She ◽  
Aitao Tang ◽  
Jianyue Zhang ◽  
Shibo Zhou ◽  
...  

2008 ◽  
Vol 9 (11) ◽  
pp. 3157-3164 ◽  
Author(s):  
Yi-Dong Li ◽  
Jian-Bing Zeng ◽  
Xiu-Li Wang ◽  
Ke-Ke Yang ◽  
Yu-Zhong Wang

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