Surface Modification of Wood Fibers with Citric Acid as a Sustainable Approach to Developing Novel Polycaprolactone-Based Composites for Packaging Applications DOI Open Access
Laura Simonini, Andrea Dorigato

Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(6), P. 274 - 274

Published: May 29, 2025

In this study, novel biodegradable polycaprolactone (PCL)-based composites for sustainable packaging applications were developed by adding surface-treated wood fibers (WFs). Specifically, the WFs treated with citric acid (CA) to improve fiber/matrix adhesion and then melt compounded a PCL matrix. The presence of an absorption peak at 1720 cm−1 in Fourier transform infrared (FTIR) spectra CA-treated WFs, coupled increase storage modulus complex viscosity rheological analysis, confirmed occurrence esterification reaction between CA consequent interfacial interactions Scanning electron microscopy (SEM) cryo-fractured surface highlighted that was able efficiently wet after treatment, limited fiber pull-out. Quasi-static tensile tests showed reinforced exhibited significant yield strength (about 30% WF amount 10% 0 °C) also slight improvement VICAT softening temperature 6 °C respect neat PCL). Water reduced water uptake composites, consistent hydrophilicity higher contact angle values. Therefore, results obtained work potential as reinforcement contributing development eco-sustainable high-performance materials.

Language: Английский

Self-Made Cyclodextrin Inclusion Complexes for Enhanced Mechanical Properties of Polycaprolactone Composites DOI Open Access
Yajun Yin, Xiaotong Wang, Jiayan Zhang

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 834 - 834

Published: March 21, 2025

Polycaprolactone (PCL) is a widely used polymer in biomedical applications due to its excellent processability, ductility, and biodegradability. However, single-component PCL devices often fail meet the multifunctional high-performance demands of modern devices. In this study, we introduced biodegradable environmentally friendly cyclodextrin (CD) fabricate CD inclusion complexes with low-molecular-weight polycaprolactone (LPCL). These were incorporated into commercial prepare resulting composites. The effects molecular weight type on properties ratios systematically investigated. Among tested complexes, one formed LPCL (Mw = 8 × 104) α-CD exhibited highest ratio (2:1), significantly enhancing crystallization mechanical composite (PCL/8-α-CD). Compared pure PCL, PCL/8-α-CD shows 14.8% increase crystallinity, along improvements 63.6% 30.9% tensile strength elongation at break, respectively. results demonstrate that incorporation can effectively enhance performance making it promising candidate for applications.

Language: Английский

Citations

0
Development of packaging films from banana pseudostem sap and PVDF: mechanical and thermal properties DOI

Kavitha Muthukumarasamy,

Banupriya Kanagarajan,

Balachandra Mohan Jayachandrabal

et al.

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Language: Английский

Citations

0
Surface Modification of Wood Fibers with Citric Acid as a Sustainable Approach to Developing Novel Polycaprolactone-Based Composites for Packaging Applications DOI Open Access
Laura Simonini, Andrea Dorigato

Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(6), P. 274 - 274

Published: May 29, 2025

In this study, novel biodegradable polycaprolactone (PCL)-based composites for sustainable packaging applications were developed by adding surface-treated wood fibers (WFs). Specifically, the WFs treated with citric acid (CA) to improve fiber/matrix adhesion and then melt compounded a PCL matrix. The presence of an absorption peak at 1720 cm−1 in Fourier transform infrared (FTIR) spectra CA-treated WFs, coupled increase storage modulus complex viscosity rheological analysis, confirmed occurrence esterification reaction between CA consequent interfacial interactions Scanning electron microscopy (SEM) cryo-fractured surface highlighted that was able efficiently wet after treatment, limited fiber pull-out. Quasi-static tensile tests showed reinforced exhibited significant yield strength (about 30% WF amount 10% 0 °C) also slight improvement VICAT softening temperature 6 °C respect neat PCL). Water reduced water uptake composites, consistent hydrophilicity higher contact angle values. Therefore, results obtained work potential as reinforcement contributing development eco-sustainable high-performance materials.

Language: Английский

Citations

0