Morphology and rheology on the blends of PLA/CMPS

Shin, Boo Young; Jo, Gyu Soon; Kang, Kyoung Su; Lee, Tae Jin; Kim, Bong Shik; Lee, Sang Il; Song, Jeong Sup

doi:10.1007/bf03218790

Cited by 19 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…droplets). Among the available models to predict the phase inversion composition φ 2,PI , the so-called Paul and Barlow equation is the most commonly used approach [18][19][20]. The validity of this basic equation which describes φ 2,PI in terms of volume fractions and viscosities was largely confirmed in several studies for immiscible polymeric blends with λ near unity [21][22][23].…”

Section: Resultsmentioning

confidence: 99%

Effect of the viscosity ratio on the PLA/PA10.10 bioblends morphology and mechanical properties

Cailloux¹,

Abt²,

Masabet³

et al. 2018

Express Polym. Lett.

View full text Add to dashboard Cite

PLA bio-blends with a predominantly biosourced PA10.10 in the composition range 10-50 wt% were prepared by melt blending in order to overcome the advanced brittleness of PLA. Due to the inherent immiscibility of the blends, 30 wt% of PA was needed to achieve a brittle-to-ductile transition and a co-continuous morphology was predicted at 58 wt% of PA. The initial enhancement of the PLA rheological behaviour through the environmentally friendly reactive extrusion process yielded a finer and more homogeneous microstructure and hence enhanced the mechanical properties of the bioblends at much lower PA contents. The brittle-to-ductile transition could be achieved with only 10 wt% and co-continuity was observed already at 44 wt% of PA. Results indicate the significant potential of modifying PLA flow behaviour as a promising green manufacturing method toward expanding PLA-based bio-blends applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Effect of the viscosity ratio on the PLA/PA10.10 bioblends morphology and mechanical properties

Cailloux¹,

Abt²,

Masabet³

et al. 2018

Express Polym. Lett.

View full text Add to dashboard Cite

show abstract

“…The CMPS40 blend has complex viscosity values intermediate to PLA and CMPS across the entire range of frequency. Although it was well known that the melt viscosity of an immiscible blend is highly correlated with its morphology [43–45]. The reason for the reduced complex viscosity in the PLA‐rich blends (CMPS10, CMPS20, and CMPS30) is partially due to the degradation of PLA, resulting from the interfacial esterification reaction (see Fig.…”

Section: Resultsmentioning

confidence: 99%

Thermal, morphological, and mechanical properties of biobased and biodegradable blends of poly(lactic acid) and chemically modified thermoplastic starch

Shin

Jang

Kim

2011

Polymer Engineering & Sci

Self Cite

View full text Add to dashboard Cite

In this study, poly(lactic acid) (PLA) was blended with chemically modified thermoplastic starch (CMPS) in a twin-screw extruder. The characteristic properties of PLA/CMPS blends were investigated by observing the morphology, thermal, and mechanical properties, and biodegradability. Differential scanning calorimetry showed that the PLA/CMPS were thermodynamically immiscible. However, scanning electron microscopy and Fourier transform infrared studies revealed that the interfacial adhesion was improved by the PLA-gstarch copolymers that were formed at the interface through a transesterification reaction between PLA and CMPS. The crystallinity of the PLA component in the blend was increased by the addition of the CMPS and was highly affected by the morphology of the blend. The tensile strength and elongation were found to decrease in a linear trend with increasing CMPS content. The biodegradability of the blends increased with increasing CMPS content, while initial time lag decreased. POLYM. ENG. SCI., 51:826-834, 2011. ª 2011 Society of Plastics Engineers Recently, in our work, chemically modified thermoplastic starch (CMPS) was introduced [27-30].This article aims at reporting on the utilization of CMPS to tailor biobased and biodegradable PLA blends for applications requiring a balance between cost and properties. To meet this objective, we prepared CMPS through the reactive extrusion processing of starch in the

show abstract

“…Shin et al [69] investigated the rheological properties of the TPS/PLA blends and explained their relationship with their morphology. To improve the dispersion and interfacial affinity of the thermoplastic starch (DTPS)/ PLA blend, Wang et al [70] used glycerol, formamide and water alone or in combination as plasticizers for starch.…”

Section: Plasticized Tps/pla Blendsmentioning

confidence: 99%

Thermoplastic Starch (TPS)/Polylactic Acid (PLA) Blending Methodologies: A Review

et al. 2021

View full text Add to dashboard Cite

Polylactic acid (PLA) and thermoplastic starch (TPS) are biodegradable polymers of biological origin, and the mixture of these polymers has been studied due to the desirable mechanical properties of PLA and the low processing cost of TPS. However, the TPS/PLA combination is thermodynamically immiscible due to the poor interfacial interaction between the hydrophilic starch granules and the hydrophobic PLA. To overcome these limitations, researchers studied the modification, processing, and properties of the mixtures as a strategy to increase the compatibility between phases. This review highlights recent developments, current results, and trends in the field of TPS/PLA-based compounds during the last two decades, with the main focus of improving the adhesion between the two components. The TPS/PLA blends were classified as plasticized, compatible, reinforced and with nanocomposites. This article presents, based on published research, TPS/PLA combinations, considering different methods with significant improvements in mechanical properties, with promising developments for applications in food packaging and biomedicine.

show abstract

Morphology and rheology on the blends of PLA/CMPS

Cited by 19 publications

References 37 publications

Effect of the viscosity ratio on the PLA/PA10.10 bioblends morphology and mechanical properties

Effect of the viscosity ratio on the PLA/PA10.10 bioblends morphology and mechanical properties

Thermal, morphological, and mechanical properties of biobased and biodegradable blends of poly(lactic acid) and chemically modified thermoplastic starch

Thermoplastic Starch (TPS)/Polylactic Acid (PLA) Blending Methodologies: A Review

Contact Info

Product

Resources

About