Effect of plasticizer with silanol groups on the structure and properties of polylactide and thermoplastic corn starch blend

Szadkowska, Agnieszka; Jeziórska, Regina; Żubrowska, M.; Spasowka, Ewa; Rosciszewski, Pawel

doi:10.14314/polimery.2016.683

Cited by 1 publication

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e addition of plasticizer decreased the T m value from 153.2°C to 148.9°C, while the T c value was reduced from 128°C to 126.7°C resulting in significantly lower crystallinity of the PLA phase. is may have occurred due to the preferable interaction between plasticizer silanol groups and TPS hydroxyl groups and carboxyl groups of the PLA chains [54]. Hence, the thermal characteristics of plasticized PLA/MPLA/TPS blend compared to that unplasticized demonstrated that polydimethylsiloxanol could be regarded as the efficient plasticizer for the PLA/MPLA/TPS blend.…”

Section: Morphological Analysismentioning

confidence: 99%

“…% PEG. Szadkowska et al [54] used two types of reactive plasticizers with silanol groups to obtain blends of PLA, maleinated PLA (MPLA), and thermoplastic corn starch (TPS). e incorporation of plasticizer with silanol groups into PLA/MPLA/TPS blends resulted in enhanced mechanical properties (especially elongation at break and impact strength) compared to the nonplasticized blend.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality

Jeziórska

Szadkowska

Spasowka

et al. 2018

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

The effect of plasticizer (polydimethylsiloxanol) and neat (SiO2) or modified (having amine functional groups) silica (A-SiO2) on morphology, thermal, mechanical, and rheological properties of PLA/TPS blends compatibilized by maleated PLA (MPLA) was investigated. Toughened PLA/MPLA/TPS (60/10/30) blend containing 3 wt.% of plasticizer and various contents (1, 3, or 5 wt.%) of silica were prepared in a corotating twin-screw extruder. From SEM, it is clear that plasticized PLA/MPLA/TPS blend continuous porous structure is highly related to the silica content and its functionality. The results indicate that polydimethylsiloxanol enhances ductility and the initial thermal stability of the plasticized blend. DSC and DMTA analyses show that nucleation ability and reinforcing effect of A-SiO2on plasticized blend crystallization are much better than those of SiO2. Silica practically had no effect on the thermo-oxidative degradation. However, the composites with A-SiO2had better thermal stability than those with SiO2. Moreover, silica significantly improved the elongation at break.

show abstract

Section: Morphological Analysismentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%