Film processability and properties of polycaprolactone/thermoplastic starch blends

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

scholarly journals Effect of Sago Starch Modifications on Polystyrene/Thermoplastic Starch Blends

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2867
Author(s):  
Mohamad Kahar Ab Wahab ◽  
Halimatul Syahirah Mohamad ◽  
Elammaran Jayamani ◽  
Hanafi Ismail ◽  
Izabela Wnuk ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Succinic Anhydride ◽  
Void Formation ◽  
Thermoplastic Starch ◽  
Sago Starch ◽  
Second Stage ◽  
Starch Blends ◽  
Three Stages ◽  
Blending Process ◽  
Starch Modifications

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.

Crystallization of PLA/Thermoplastic Starch Blends

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

Poly(Ethylene Glycol) as a Compatibilizer for Poly(Lactic Acid)/Thermoplastic Starch Blends

2012 ◽  
Vol 21 (1) ◽  
pp. 151-159 ◽  
Author(s):  
Márcia Maria Favaro Ferrarezi ◽  
Márcia de Oliveira Taipina ◽  
Laura Caetano Escobar da Silva ◽  
Maria do Carmo Gonçalves
Keyword(s):  
Lactic Acid ◽  
Ethylene Glycol ◽  
Thermoplastic Starch ◽  
Poly Lactic Acid ◽  
Poly Ethylene Glycol ◽  
Starch Blends ◽  
Poly Ethylene

Preparation of modified starch-grafted poly(lactic acid) and a study on compatibilizing efficacy of the copolymers in poly(lactic acid)/thermoplastic starch blends

2012 ◽  
Vol 126 (S1) ◽  
pp. E389-E396 ◽  
Author(s):  
J. Wootthikanokkhan ◽  
P. Kasemwananimit ◽  
N. Sombatsompop ◽  
A. Kositchaiyong ◽  
S. Isarankura na Ayutthaya ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Thermoplastic Starch ◽  
Poly Lactic Acid ◽  
Modified Starch ◽  
Starch Blends

Biocomposites based on thermoplastic starch or polylactide/starch blends as the matrices filled with natural fibers

Polimery ◽  
2009 ◽  
Vol 54 (10) ◽  
pp. 667-673 ◽  
Author(s):  
STANISLAW KUCIEL ◽  
ANETA LIBER-KNEC ◽  
STANISLAW ZAJCHOWSKI
Keyword(s):  
Natural Fibers ◽  
Thermoplastic Starch ◽  
Starch Blends

Effect of blending conditions on mechanical, thermal, and rheological properties of plasticized poly(lactic acid)/maleated thermoplastic starch blends

2011 ◽  
Vol 124 (2) ◽  
pp. 1012-1019 ◽  
Author(s):  
J. Wootthikanokkhan ◽  
N. Wongta ◽  
N. Sombatsompop ◽  
A. Kositchaiyong ◽  
J. Wong-On ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Rheological Properties ◽  
Thermoplastic Starch ◽  
Poly Lactic Acid ◽  
Starch Blends

Effect of Octenyl Succinate Starch on Properties of Tapioca Thermoplastic Starch Blends

2017 ◽  
Vol 751 ◽  
pp. 290-295 ◽  
Author(s):  
Manisara Phiriyawirut ◽  
Thanagorn Duangsuwan ◽  
Nutthaphong Uenghuab ◽  
Chatchai Meena
Keyword(s):  
Water Resistance ◽  
Thermoplastic Starch ◽  
Synergy Effect ◽  
Elongation At Break ◽  
Tapioca Starch ◽  
Degradation Temperature ◽  
Osa Starch ◽  
Starch Blends ◽  
Internal Mixer ◽  
Short Time

Water resistant is drawback property of thermoplastic starch. Blending of hydrophobic starch to natural one is another solution. Different blending ratio of tapioca/octenyl succinate starch (OSA) at 0/100, 25/75, 50/50, 75/25, 100/0 were prepared using internal mixer, and molded by compression molding at 135-140°C, 1000-1500 MPa for 9 minutes. Density of the blend was decreased, due to lower density of OSA starch. There was mechanical properties improvement in 25% OSA blended tapioca starch i.e. tensile strength, Young’s modulus & elongation at break, due to synergy effect of OSA & tapioca starch. There was improvement in degradation temperature of the blend studying by TGA technique. Water resistance of the blend is improved related to the content of OSA starch in the blend on short time contact (10 min), but no impact at longer time exposure (1hr). The blend had a better resistant to degradation with a-amylase, which OSA starch could retard the degradation.

Synthesis and properties of biodegradable polylactide and thermoplastic starch blends

Polimery ◽  
2011 ◽  
Vol 56 (04) ◽  
pp. 271-280 ◽  
Author(s):  
Barbara Swierz-Motysia ◽  
Regina Jeziorska ◽  
Agnieszka Szadkowska ◽  
Malgorzata Piotrowska
Keyword(s):  
Thermoplastic Starch ◽  
Starch Blends
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