Highly toughened poly(lactic acid) (PLA) prepared through melt blending with ethylene-co-vinyl acetate (EVA) copolymer and simultaneous addition of hydrophilic silica nanoparticles and block copolymer compatibilizer

2020 ◽  
Vol 91 ◽  
pp. 106735
Author(s):  
Salar Moradi ◽  
Jafar Khademzadeh Yeganeh
Keyword(s):  
Lactic Acid ◽  
Block Copolymer ◽  
Silica Nanoparticles ◽  
Vinyl Acetate ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Simultaneous Addition ◽  
Eva Copolymer

Mechanical, Thermal, and Morphological Properties of Thermoplastic Starch/Poly(lactic acid/Poly(butylene adipate-co-terephthalate) Blends

2014 ◽  
Vol 970 ◽  
pp. 312-316
Author(s):  
Sujaree Tachaphiboonsap ◽  
Kasama Jarukumjorn
Keyword(s):  
Lactic Acid ◽  
Impact Strength ◽  
Interfacial Adhesion ◽  
Tensile Modulus ◽  
Thermoplastic Starch ◽  
Morphological Properties ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Elongation At Break ◽  
Blending Method

Thermoplastic starch (TPS)/poly (lactic acid) (PLA) blend and thermoplastic starch (TPS)/poly (lactic acid) (PLA)/poly (butylene adipate-co-terephthalate) (PBAT) blend were prepared by melt blending method. PLA grafted with maleic anhydride (PLA-g-MA) was used as a compatibilizer to improve the compatibility of the blends. As TPS was incorporated into PLA, elongation at break was increased while tensile strength, tensile modulus, and impact strength were decreased. Tensile properties and impact properties of TPS/PLA blend were improved with adding PLA-g-MA indicating the enhancement of interfacial adhesion between PLA and TPS. With increasing PBAT content, elongation at break and impact strength of TPS/PLA blends were improved. The addition of TPS decreased glass transition temperature (Tg), crystallization temperature (Tc), and melting temperature (Tm) of PLA. Tgand Tcof TPS/PLA blend were decreased by incorporating PLA-g-MA. However, the presence of PBAT reduced Tcof TPS/PLA blend. Thermal properties of TPS/PLA/PBAT blends did not change with increasing PBAT content. SEM micrographs revealed that the compatibilized TPS/PLA blends exhibited finer morphology when compared to the uncompatibilized TPS/PLA blend.

scholarly journals The combined plasticization of jute and tung oil anhydride for jute fiber reinforced poly(lactic acid) composites

2021 ◽  
pp. 096739112110576
Author(s):  
Ying Zhou ◽  
Can Chen ◽  
Lan Xie ◽  
Xiaolang Chen ◽  
Guangqiang Xiao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Physical And Mechanical Properties ◽  
Complex Viscosity ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Sem Images ◽  
Pseudoplastic Fluid ◽  
Tung Oil ◽  
Biodegradable Poly ◽  
The Impact

In this work, novel plasticizing biodegradable poly (lactic acid) (PLA) composites were prepared by melt blending of jute and tung oil anhydride (TOA), and the physical and mechanical properties of PLA/jute/TOA composites were tested and characterized. The impact strength of PLA/jute/TOA composites significantly increases with increasing the content of TOA. The SEM images of fracture surface of PLA/jute/TOA composites become rough after the incorporation of TOA. In addition, TOA changes the crystallization temperature and decomposition process of PLA/jute/TOA composites. With increasing the amount of TOA, the value of storage modulus (E′) of PLA/jute/TOA composites gradually increases. The complex viscosity (η*) values for all samples reduce obviously with increasing the frequency, which means that the pure PLA and PLA/jute/TOA composites is typical pseudoplastic fluid. This is attributed to the formation of crosslinking, which restricts the deformation of the composites.

scholarly journals Modification of poly(lactic) acid by reactive extrusion and its melt blending with acrylonitrile–butadiene–styrene

2020 ◽  
Vol 69 (9) ◽  
pp. 794-803
Author(s):  
Tobias Abt ◽  
Mohammad Reza Kamrani ◽  
Jonathan Cailloux ◽  
Orlando Santana ◽  
Miguel Sánchez‐Soto
Keyword(s):  
Lactic Acid ◽  
Acrylonitrile Butadiene Styrene ◽  
Reactive Extrusion ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Butadiene Styrene

Preparation and characterization of poly(lactic acid)/elastomer blends prepared by melt blending technique

2013 ◽  
Vol 46 (3) ◽  
pp. 253-268 ◽  
Author(s):  
Mujtahid Kaavessina ◽  
Ilias Ali ◽  
Rabeh Elleithy ◽  
Saeed M. Al-Zahrani
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Melt Blending

Fabrication of super tough poly(lactic acid)/ethylene-co-vinyl-acetate blends via a melt recirculation approach: static-short term mechanical and morphological interpretation

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 14580-14588 ◽  
Author(s):  
Rajendra Kumar Singla ◽  
Saurindra N. Maiti ◽  
Anup K. Ghosh
Keyword(s):  
Lactic Acid ◽  
Impact Strength ◽  
Vinyl Acetate ◽  
Poly Lactic Acid ◽  
Short Term ◽  
Izod Impact Strength ◽  
Izod Impact

The notched Izod impact strength of PLA/EVA blends was enhanced significantly with improved toughness making blends super tough.

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