Constructing Novel Biobased Phosphorus-Containing Oligomeric Lactates toward Synchronously Enhancing the Toughness and Fire Safety of Poly(lactic acid)

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(17), P. 6748 - 6761

Published: April 15, 2024

Simultaneously improving the flame retardancy and toughness of polylactic acid (PLA) remains a huge challenge. In this work, we report simple method for synthesizing PLA blended with biobased phosphorus-containing oligomeric lactates. Four lactates (PEL, PBL, PHL, POL) were synthesized l-lactic acid, aliphatic dihydric alcohols (ethylene glycol, butane-1,4-diol, 1,6-hexanediol, or 1,8-octanediol), phenyl phosphorodichloridate via esterification acylation reactions. Accordingly, flame-retardant ultratough composites can be achieved by direct blending commercially available plasticizer acetyl tributyl citrate (ATBC). The results exhibited that was obviously enhanced on adding 10 phr ATBC, its elongation at break reached about 550–670%, indicating their ultratoughness. This is ascribed to fact after ATBC diluted, fully dispersed in matrix so as reduce intermolecular force enhance toughness. Simultaneously, fire resistance distinctly. phosphoro group lactate structure PLA, which conducive capture radicals gas phase formation residual char condensed phase. All UL-94 V-0 rating. Besides, limited oxygen index increased from 20.0 34.8–41.0% addition 20 Additionally, both heat release rate total smoke effectively reduced. Intriguingly, four could improve crystallization retain outstanding transparency. work offers new manufacturing green flame-retardant, ultratough, transparent composites.

Language: Английский

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Synthesis, characterization and performance evaluation of different alkyl chain lengths flame-retardant plasticizers for poly(vinyl chloride) derived from sustainable vanillic acid

European Polymer Journal, Journal Year: 2024, Volume and Issue: 214, P. 113154 - 113154

Published: May 19, 2024

Language: Английский

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Synthesis of novel L-lactic acid-based plasticizers and their effects on the flexibility, crystallinity, and optical transparency of poly(lactic acid)

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 273, P. 132826 - 132826

Published: May 31, 2024

Language: Английский

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Recent advancements in bio-based plasticizers for polylactic acid (PLA): a review

Polymer Testing, Journal Year: 2024, Volume and Issue: unknown, P. 108603 - 108603

Published: Oct. 1, 2024

Language: Английский

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High strength and water tolerance fish gelatin-xanthan gum acid-induced electrostatic film by melt extrusion method

Food Hydrocolloids, Journal Year: 2024, Volume and Issue: 151, P. 109769 - 109769

Published: Jan. 20, 2024

Language: Английский

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Progress on the research and development of the biomass-based polyimide

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 220, P. 119239 - 119239

Published: July 19, 2024

Language: Английский

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Synthesis, performance evaluation, and plasticization dynamics of biobased vanillic acid plasticizer for poly(vinyl chloride)

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154991 - 154991

Published: Aug. 23, 2024

Language: Английский

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Valorization of Biodiesel Into Bio‐Based Plasticizers: Optimization of Epoxidized Fatty Acid Isobutyl Ester Production Using Response Surface Methodology and Artificial Neural Network

European Journal of Lipid Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

ABSTRACT Biodiesel is a promising green chemical feedstock due to its renewability and sustainability. In this study, bio‐based plasticizers, epoxidized fatty acid isobutyl esters (Ep‐FABEs), were prepared using biodiesel as through combination of transesterification the formic autocatalytic method. The effects reaction temperature, time, FA/C═C molar ratio, H 2 O /C═C ratio on conversion oxirane (RCO) during epoxidation process investigated central composite design. Both response surface methodology (RSM) artificial neural network (ANN) models developed model optimize process. Comparative analysis revealed that ANN demonstrated superior predictive capabilities, with lower mean squared error (MSE), absolute (MAE), higher coefficient determination ( R ) compared RSM model. predicted an RCO 92%, which was closely aligned experimental value 91% under optimized conditions (reaction temperature 66°C, time 6.7 h, 0.35, 2.70). Additionally, physico‐chemical properties Ep‐FABEs further analyzed. These findings provide valuable insights into production plasticizers feedstock.

Language: Английский

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Design of Anti‐Migratory and Thermally Stable Bio‐Plasticizers for Polar Plastics Toward Superior Overall Performance

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

ABSTRACT Developing bio‐based plasticizers for polyvinyl chloride (PVC) that exhibit effective plasticizing performance, thermal stability, and migration resistance remains a significant challenge. In this work, two plasticizers, acetylated methyl oleate citrate (A‐MO‐CAE) n‐butyl (A‐NBO‐CAE), were synthesized by using fatty acid esters citric as raw materials compared with the commercial plasticizer bis(2‐ethyl)hexyl phthalate (DEHP). It was found PVC plasticized A‐MO‐CAE, shorter alkane chain, had better overall performance; alkyl chain of A‐MO‐CAE increases intermolecular distance PVC, ester group interacts which results in good effect. The Tg PVC/50A‐MO‐CAE 43.3°C; meanwhile, heat than PVC/50DEHP, did not oxidize turn black after aging 1 h at 180°C. elongation break (EB) 633.3%, higher PVC/50A‐NBO‐CAE (456.6%) PVC/50DEHP (429.2%). More importantly, weight loss volatility leaching tests much lower PVC/50DEHP. These indicate has potential to replace DEHP, providing straightforward practical way preparation plasticizers.

Language: Английский

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Achieving Balanced Stiffness and Toughness of Plasticized Polymer Via Integrating Plasticization and Stress Concentration-Induced Plastic Deformation

Published: Jan. 1, 2025

Stiff polymers are widely used but limited by the poor toughness since they prone to breakage and failure when subjected impact or collision. Adding plasticizer is a common toughening method will result in sharply decreased stiffness. Few researches have focused on theoretical study of achieving balanced stiffness plasticized polymers. Herein, we proposed that via integrating plasticization stress concentration-induced plastic deformation, poly(lactic acid) (PLA) with can be achieved incorporating moderate not best compatibility matrix. Moderate promote chain-segment movability while maintaining high stiffness, where deformability usually limited. Stress deformation impart good limitedly PLA, plentiful small-sized deformations required avoid premature development microcracks into macrocracks. The designed advance manipulating solubility parameter plasticizer. We envision this work enrich theories contribute industrial preparation toughness.

Language: Английский

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