In this study, we report the development of a sustainable polymer system with 50 wt% lignin content, suitable for additive manufacturing and high value-added utilization of lignin. The plasticized polylactic acid (PLA) was incorporated with lignin to develop the bendable and malleable green composites with excellent 3D printing adaptability. The biocomposites exhibit increases of 765.54 % and 125.27 % in both elongation and toughness, respectively. The plasticizer enhances the dispersion of lignin and the molecular mobility of the PLA chains. The good dispersion of lignin particles within the structure and the reduction of chemical cross-linking promote the local relaxation of the polymer chains. The good local relaxation of the polymer chains and the high flexibility allow to obtain a better integration between the printed layers with good printability. This research demonstrates the promising potential of this composite system for sustainable manufacturing and provides insights into novel material design for high-value applications of lignin.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2023.127264 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Surface engineering of 3D-printed polylactic acid scaffolds with polydopamine and 4-methoxycinnamic acid-chitosan nanoparticles for bone regeneration.
Nanoscale Adv
January 2025
Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology Kattankulathur Tamil Nadu 603203 India
Bone remodeling, a continuous process of resorption and formation, is essential for maintaining skeletal integrity and mineral balance. However, in cases of critical bone defects where the natural bone remodeling capacity is insufficient, medical intervention is necessary. Traditional bone grafts have limitations such as donor site morbidity and availability, driving the search for bioengineered scaffold alternatives.
View Article and Find Full Text PDFApplication and research progress in composite stem cell materials of pelvic floor reconstruction.
Eur J Obstet Gynecol Reprod Biol
January 2025
Department of Obstetrics and Gynaecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, West China Second University Hospital, Sichuan University, Chengdu, Sichuan Province, China. Electronic address:
As an important tool for the surgical treatment of pelvic floor dysfunction, the safety of mesh must be guaranteed. Although the short-term curative effect of most synthetic mesh is satisfactory, complications often occur due to its material. Planting stem cells on mesh through specific methods may resolve the problems of mesh with poor biocompatibility or an uncontrollable rate o degradation.
View Article and Find Full Text PDFMechanical properties of a polylactic 3D-printed interim crown after thermocycling.
PLoS One
January 2025
Department of Advanced General Dentistry, College of Dentistry, Yonsei University, Seoul, Korea.
Polylactic acid (PLA) has garnered attention for use in interim dental restorations due to its biocompatibility, biodegradability, low cost, ease of fabrication, and moderate strength. However, its performance under intraoral conditions, particularly under heat and moisture, remains underexplored. This study evaluated the mechanical properties of PLA interim crowns compared with those of polymethylmethacrylate (PMMA) and bisphenol crowns under simulated intraoral conditions with thermocycling.
View Article and Find Full Text PDFEffects of polylactic acid microplastics on dissolved organic matter across soil types: Insights into molecular composition.
J Hazard Mater
January 2025
Guangdong Basic Research Center of Excellence for Ecological Security and Green Development, Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
Increasing evidence has highlighted the effects of biodegradable microplastics (MPs) on soil organic matter (SOM), but the role of soil type and incubation time remains unclear. This study investigated the effects of polylactic acid microplastics (PLA-MPs) on the amount and molecular composition of dissolved organic matter (DOM) across three paddy soil types (Ferralsol, Alfisol, and Mollisol) and incubation times, revealing soil-specific patterns in DOM transformation: PLA-MPs reduced DOM content in Ferralsol and Alfisol by 29.3-68.
View Article and Find Full Text PDFDifferent effects of bio/non-degradable microplastics on sewage sludge compost performance: Focusing on antibiotic resistance genes, virulence factors and key metabolic functions.
J Hazard Mater
January 2025
Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources (MNR), Qingdao 266061, China.
Microplastics (MP) have aroused increasing concern due to the negative environmental impact. However, the impact of bio/non-biodegradable MPs on the sludge composting process has not been thoroughly investigated. This study examined antibiotic resistance genes (ARGs), virulence factors (VFs), and microbial community functions in sludge compost with the application of polylactic acid (PLA) and polypropylene (PP), using metagenomic sequencing.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!