Effect of Nucleating Agents on Physical Properties of Poly(lactic acid) and Its Blend with Natural Rubber

Suksut, Buncha; Deeprasertkul, Chudej

doi:10.1007/s10924-010-0278-9

Cited by 113 publications

(79 citation statements)

References 16 publications

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“…Such behaviour is reasonable due to the fact that NPCC can act as nucleating agent. Similar finding was reported by Suksut and Deeprasertkul [25], who found that the degree of crystallinity of PLA was increased prominently in the presence of CaCO 3 . On the contrary, the incorporation of SEBS-g-MAH reduces the degree of crystallinity of PLA/NPCC nanocomposites.…”

Section: Differential Scanning Calorimetry (Dsc)supporting

confidence: 90%

Effects of SEBS-g-MAH on the properties of injection moulded poly(lactic acid)/nano-calcium carbonate composites

Chow¹,

Leu²,

Ishak³

2012

Express Polym. Lett.

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Poly(lactic acid)/nano-precipitated calcium carbonate (PLA/NPCC) composites toughened with maleated styrene-ethylene/butylene-styrene (SEBS-g-MAH) were prepared by melt-compounding on a co-rotating twin-screw extruder followed by injection moulding. The mechanical properties of the PLA nanocomposites were characterized by tensile, flexural and impact tests, while their morphology were investigated using transmission electron microscopy (TEM). The thermal properties of the composites were examined with differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA). The elongation at break and impact strength of the PLA/NPCC nanocomposites increased significantly after addition of SEBS-g-MAH. Both nano-dispersed NPCC and small NPCC clusters were found in PLA matrix. Also, some SEBS-g-MAH encapsulated NPCC can be observed. Thermal stability of PLA/NPCC was enhanced prominently by the addition of SEBS-g-MAH

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Section: Differential Scanning Calorimetry (Dsc)supporting

confidence: 90%

Effects of SEBS-g-MAH on the properties of injection moulded poly(lactic acid)/nano-calcium carbonate composites

Chow¹,

Leu²,

Ishak³

2012

Express Polym. Lett.

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“…Thus a polymer blend between PLA and NR is interesting because this polymer blend is a totally bio-based polymer. Due to the brittleness of PLA, NR is used as a toughening agent for PLA [2][3][4][5][6]. PLA/NR blends in other forms have not been reported except from our group and we have reported on a thermoplastic natural rubber prepared from PLA and NR [7].…”

Section: Introductionmentioning

confidence: 91%

Effect of different plasticizers on the properties of bio-based thermoplastic elastomer containing poly(lactic acid) and natural rubber

Tanrattanakul¹,

Bunkaew²

2014

Express Polym. Lett.

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Abstract. Bio-based thermoplastic elastomers (TPE) containing natural rubber and poly(lactic acid) were prepared by melt blending in an internal mixer. The blend ratio was 60% of natural rubber and 40% of poly(lactic acid). Dynamic vulcanization of natural rubber was performed with the sulfur system. The 2 mm -thick sheet samples were prepared by compression molding. The objective of this study was to investigate the effect of plasticization of PLA on the mechanical and physical properties of the derived TPE. Four plasticizers were selected: tributyl acetyl citrate (TBAC), tributyl citrate (TBC), glycerol triacetate (GTA), and triethyl-2-acetyl citrate (TEAC). The investigated properties were the tensile properties, tear strength, thermal ageing and ozone resistance, hardness, resilience, tension set and compression set. All plasticizers increased the strain at break. TBAC and TBC increased the stress at break. All plasticizers decreased the tear strength, hardness and resilience, and slightly changed the tension and compression set. TBAC seemed to be the best plasticizer for the TPE. The presence of 4 pph (parts per hundred resin) of plasticizer provided the highest strength and tensile toughness and the strain at break increased with the increasing plasticizer content. The plasticizers decreased the T g and T cc of the PLA and did not affect the degree of crystallinity of PLA in the TPE.

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“…Plasticizers such as poly (ethylene glycol) PEG, Oligomeric lactic acid, Citrate Ester and different nucleating agents such as calcium carbonate, Talc, Boron Nitride were proposed to improve thermal properties of PLA while PLA modifications are carried out more rarely [4]- [8].…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that talc can be an effective nucleating agent and PEG was an efficient plasticizer inducing an increasing in crystallization even at fast cooling rates [6], [7]. B. Suksut et al [8] also studied the effect of both plasticizer and nucleating agent on mechanical and thermal properties of PLA. Their results showed that the presence of nucleating agents (Cyclodextrin (CD)), Calcium carbonate (CaCO3) and Talc in neat PLA increases the degree of crystallinity.…”

Section: Introductionmentioning

confidence: 99%

Thermal Properties of Plasticized Poly (Lactic Acid) (PLA) Containing Nucleating Agent

Fehri¹,

Cinelli²,

Coltelli³

et al. 2016

IJCEA

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Abstract-The present research reports the investigation of the role of an oligomeric polyadipate plasticizer (206 3NL), and a nucleating agent aromatic sulfonate derivative (LAK301) on thermal behaviours of poly-lactic acid (PLA) evaluated through differential scanning calorimetry (DSC) measurements in order to investigate the separated effect due to the addition of plasticizer and nucleating agent on the thermal behavior of PLA respectively. Binary and ternary systems containing PLA/206 3NL/LAK301 have been developed. All samples have been prepared by melt-blending. The results of the present study show that LAK301 acts as a very efficient nucleating agent by increasing crystallinity percentage from 5.6% in pure PLA to 12% in PLA/LAK301 5%wt/206 3NL, and that (206 3NL) is a compatible plasticizer for PLA as the glass temperature drops down from 59.4 °C in pure PLA to 38.9 °C in blends of PLA-NL 15 wt%. Also the approach of investigating the compatibility in ternary system where the plasticizer and nucleating agent have a synergic effect on thermal properties as well on crystallinity and glass transition temperature of PLA were addressed. In fact in ternary blends of PLA/LAK301/206 3NL with 5 wt% of LAK301 the glass transition temperature was reduced to 30.3 °C and PLA crystallinity increased to 39 wt%.

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Effect of Nucleating Agents on Physical Properties of Poly(lactic acid) and Its Blend with Natural Rubber

Cited by 113 publications

References 16 publications

Effects of SEBS-g-MAH on the properties of injection moulded poly(lactic acid)/nano-calcium carbonate composites

Effects of SEBS-g-MAH on the properties of injection moulded poly(lactic acid)/nano-calcium carbonate composites

Effect of different plasticizers on the properties of bio-based thermoplastic elastomer containing poly(lactic acid) and natural rubber

Thermal Properties of Plasticized Poly (Lactic Acid) (PLA) Containing Nucleating Agent

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