scholarly journals Physical and Degradation Properties of Polylactic Acid and Thermoplastic Starch Blends – Effect of Citric Acid Treatment on Starch Structures

BioResources ◽  
2017 ◽  
Vol 12 (2) ◽  
Author(s):  
Noorizzah Ibrahim ◽  
Mohamad Kahar Ab Wahab ◽  
Du Ngoc Uylan ◽  
Hanafi Ismail
RSC Advances ◽  
2020 ◽  
Vol 10 (73) ◽  
pp. 44815-44823
Author(s):  
Peng Yin ◽  
Chunhao Chen ◽  
Hongpeng Ma ◽  
Huijuan Gan ◽  
Bin Guo ◽  
...  

Here, we report a method to improve the properties of thermoplastic starch (TPS) by surface ultraviolet (UV) cross-linking.


Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2867
Author(s):  
Mohamad Kahar Ab Wahab ◽  
Halimatul Syahirah Mohamad ◽  
Elammaran Jayamani ◽  
Hanafi Ismail ◽  
Izabela Wnuk ◽  
...  

The preparation of polystyrene/thermoplastic starch (PS/TPS) blends was divided into three stages. The first stage involved the preparation of TPS from sago starch. Then, for the second stage, PS was blended with TPS to produce a TPS/PS blend. The ratios of the TPS/PS blend were 20:80, 40:60, 60:40, and 80:20. The final stage was a modification of the composition of TPS/PS blends with succinic anhydride and ascorbic acid treatment. Both untreated and treated blends were characterized by their physical, thermal, and surface morphology properties. The obtained results indicate that modified blends have better tensile strength as the adhesion between TPS and PS was improved. This can be observed from SEM micrographs, as modified blends with succinic anhydride and ascorbic acid had smaller TPS dispersion in PS/TPS blends. The micrograph showed that there was no agglomeration and void formation in the TPS/PS blending process. Furthermore, modified blends show better thermal stability, as proved by thermogravimetric analysis. Water uptake into the TPS/PS blends also decreased after the modifications, and the structural analysis showed the formation of a new peak after the modification process.


2008 ◽  
Vol 23 (5) ◽  
pp. 412-418 ◽  
Author(s):  
H. Li ◽  
M. A. Huneault

Author(s):  
Keydis Martinez Villadiego ◽  
Mary Judith Arias Tapia ◽  
J. Useche ◽  
Daniela Escobar Macías

2011 ◽  
Vol 123 (1) ◽  
pp. 179-190 ◽  
Author(s):  
Daniel E. Ramírez-Arreola ◽  
Jorge R. Robledo-Ortiz ◽  
Francisco Moscoso ◽  
Martín Arellano ◽  
Denis Rodrigue ◽  
...  

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