Biocomposites based on Poly(lactic acid), Cynara Cardunculus seed oil and fibrous presscake: a novel eco-friendly approach to hasten PLA biodegradation in common soil

2021 ◽  
pp. 109576
Author(s):  
Rosa Turco ◽  
Domenico Zannini ◽  
Salvatore Mallardo ◽  
Giovanni Dal Poggetto ◽  
Riccardo Tesser ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Seed Oil ◽  
Poly Lactic Acid ◽  
Cynara Cardunculus

scholarly journals Dual Plasticizer/Thermal Stabilizer Effect of Epoxidized Chia Seed Oil (Salvia hispanica L.) to Improve Ductility and Thermal Properties of Poly(Lactic Acid)

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1283
Author(s):  
Ivan Dominguez-Candela ◽  
Jose Miguel Ferri ◽  
Salvador Cayetano Cardona ◽  
Jaime Lora ◽  
Vicent Fombuena
Keyword(s):  
Lactic Acid ◽  
Seed Oil ◽  
Chemical Interaction ◽  
Thermal Stabilization ◽  
Thermal Characterization ◽  
Future Application ◽  
Poly Lactic Acid ◽  
Chia Seed ◽  
Packaging Industry ◽  
Chia Seed Oil

The use of a new bio-based plasticizer derived from epoxidized chia seed oil (ECO) was applied in a poly(lactic acid) (PLA) matrix. ECO was used due to its high epoxy content (6.7%), which led to an improved chemical interaction with PLA. Melt extrusion was used to plasticize PLA with different ECO content in the 0–10 wt.% range. Mechanical, morphological, and thermal characterization was carried out to evaluate the effect of ECO percentage. Besides, disintegration and migration tests were studied to assess the future application in packaging industry. Ductile properties improve by 700% in elongation at break with 10 wt.% ECO content. Field emission scanning electron microscopy (FESEM) showed a phase separation with ECO content equal or higher than 7.5 wt.%. Thermal stabilization was improved 14 °C as ECO content increased. All plasticized PLA was disintegrated under composting conditions, not observing a delay up to 5 wt.% ECO. Migration tests pointed out a very low migration, less than 0.11 wt.%, which is to interest to the packaging industry.

Cynara cardunculus Biomass Recovery: An Eco-Sustainable, Nonedible Resource of Vegetable Oil for the Production of Poly(lactic acid) Bioplasticizers

2019 ◽  
Vol 7 (4) ◽  
pp. 4069-4077 ◽  
Author(s):  
Rosa Turco ◽  
Riccardo Tesser ◽  
Maria Elena Cucciolito ◽  
Massimo Fagnano ◽  
Lucia Ottaiano ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Vegetable Oil ◽  
Poly Lactic Acid ◽  
Cynara Cardunculus ◽  
Biomass Recovery

scholarly journals Properties of poly(lactic acid) plasticized by epoxidized rubber seed oil

2018 ◽  
Vol 56 (2) ◽  
pp. 181-186 ◽  
Author(s):  
Nguyen Thi Thuy ◽  
Vu Minh Duc ◽  
Nguyen Thanh Liem
Keyword(s):  
Lactic Acid ◽  
Seed Oil ◽  
Poly Lactic Acid ◽  
Rubber Seed Oil ◽  
Rubber Seed

Electrical Properties of Heat-Treated Poly-Lactic Acid

2011 ◽  
Vol 131 (5) ◽  
pp. 395-400 ◽  
Author(s):  
Toru Oi ◽  
Katsuyoshi Shinyama ◽  
Shigetaka Fujita
Keyword(s):  
Lactic Acid ◽  
Electrical Properties ◽  
Poly Lactic Acid ◽  
Heat Treated

Dielectric Breakdown Properties of Poly-Lactic Acid with Spherulites Growth

2014 ◽  
Vol 134 (4) ◽  
pp. 237-242
Author(s):  
Naru Matsugasaki ◽  
Katsuyoshi Shinyama ◽  
Shigetaka Fujita
Keyword(s):  
Lactic Acid ◽  
Dielectric Breakdown ◽  
Poly Lactic Acid

Characterizing Attapulgite-Reinforced Nanocomposites of Poly(lactic acid)

2020 ◽  
Vol 62 (6) ◽  
pp. 732-743
Author(s):  
Chi-Hui Tsou ◽  
Jipeng Guo ◽  
Ji-Ang Lei ◽  
Manuel Reyes De Guzman ◽  
Maw-Cherng Suen
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid

Effect of Polyethylene Glycol in Nanocellulose/PLA Composites

2019 ◽  
Vol 821 ◽  
pp. 89-95
Author(s):  
Wanasorn Somphol ◽  
Thipjak Na Lampang ◽  
Paweena Prapainainar ◽  
Pongdhorn Sae-Oui ◽  
Surapich Loykulnant ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Lactic Acid ◽  
Polyethylene Glycol ◽  
Aspect Ratio ◽  
Mechanical Performance ◽  
Tensile Modulus ◽  
Poly Lactic Acid ◽  
Solvent Casting ◽  
Casting Method ◽  
Mediated Oxidation

Poly (lactic acid) or PLA was reinforced by nanocellulose and polyethylene glycol (PEG), which were introduced into PLA matrix from 0 to 3 wt.% to enhance compatibility and strength of the PLA. The nanocellulose was prepared by TEMPO-mediated oxidation from microcrystalline cellulose (MCC) powder and characterized by TEM, AFM, and XRD to reveal rod-like shaped nanocellulose with nanosized dimensions, high aspect ratio and high crystallinity. Films of nanocellulose/PEG/PLA nanocomposites were prepared by solvent casting method to evaluate the mechanical performance. It was found that the addition of PEG in nanocellulose-containing PLA films resulted in an increase in tensile modulus with only 1 wt% of PEG, where higher PEG concentrations negatively impacted the tensile strength. Furthermore, the tensile strength and modulus of nanocellulose/PEG/PLA nanocomposites were higher than the PLA/PEG composites due to the existence of nanocellulose chains. Visual traces of crazing were detailed to describe the deformation mechanism.

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