Sustainable Polypropylene Blends: Balancing Recycled Content with Processability and Performance DOI Open Access
Tatiana Zhiltsova, Mónica S. A. Oliveira

Polymers, Journal Year: 2025, Volume and Issue: 17(11), P. 1556 - 1556

Published: June 3, 2025

The increasing demand for sustainable materials has renewed interest in recycling polyolefins, particularly polypropylene (PP), due to its widespread use and environmental persistence. Post-consumer recycled (PPr), however, often exhibits compromised properties from prior exposure thermal, oxidative, mechanical degradation. This study investigates the potential of using post-consumer PPr melt-blended extrusion formulations with virgin PP (PPv), focusing on how different contents affect processability, thermal stability, oxidative resistance, performance. Blends containing 25%, 50%, 75% PPr, as well 100% PP, were evaluated melt flow index (MFI), differential scanning calorimetry (DSC), oxidation induction time (OIT), thermogravimetric analysis (TGA), tensile testing. Results show that content improves polymer fluidity stability under inert conditions but significantly reduces resistance ductility. However, 25% blend demonstrated a favourable balance between performance recyclability, presenting 96% elastic modulus 101% yield strength PPv. Homogenization by improved 22% compared non-extruded form. These findings support low-to-moderate levels applications requiring predictable tunable contributing circular economy goals.

Language: Английский

Study on China’s Plastic Consumption Trend and Sustainable Development Countermeasures DOI Open Access

S.L. CHONG,

Huawen Xiong

Sustainability, Journal Year: 2025, Volume and Issue: 17(9), P. 4218 - 4218

Published: May 7, 2025

The global plastic pollution control process has put forward higher requirements for waste reduction and recycling. This study evaluated the demands by 2030 2050 in China based on a combination of qualitative quantitative methods, identified four consumption terminals, countermeasures sustainable development plastics industry. results show that analysis China’s low-carbon transition policies, reasonable will reach 118 110 million tons 2050, respectively. packaging, construction decoration, electronics appliance, automobile areas are major terminals China, accounting more than 80% total consumption. enhanced implementation policy banning restricting bags lead to significant drop disposable packaging plastics, while transformation whole society promote realization low-energy field construction, industry toward lightweight materials, appliance products high quality, thus further stimulating related demand. Finally, proposed.

Language: Английский

Citations

0
Protecting the Right to Science in Multilateral Environmental Agreements addressing chemicals and plastics pollution (Submitted to the International Journal of Human Rights) DOI
Bethanie Carney Almroth, Rob Ralston, Joachim Peter Tilsted

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Sustainable Polypropylene Blends: Balancing Recycled Content with Processability and Performance DOI Open Access
Tatiana Zhiltsova, Mónica S. A. Oliveira

Polymers, Journal Year: 2025, Volume and Issue: 17(11), P. 1556 - 1556

Published: June 3, 2025

The increasing demand for sustainable materials has renewed interest in recycling polyolefins, particularly polypropylene (PP), due to its widespread use and environmental persistence. Post-consumer recycled (PPr), however, often exhibits compromised properties from prior exposure thermal, oxidative, mechanical degradation. This study investigates the potential of using post-consumer PPr melt-blended extrusion formulations with virgin PP (PPv), focusing on how different contents affect processability, thermal stability, oxidative resistance, performance. Blends containing 25%, 50%, 75% PPr, as well 100% PP, were evaluated melt flow index (MFI), differential scanning calorimetry (DSC), oxidation induction time (OIT), thermogravimetric analysis (TGA), tensile testing. Results show that content improves polymer fluidity stability under inert conditions but significantly reduces resistance ductility. However, 25% blend demonstrated a favourable balance between performance recyclability, presenting 96% elastic modulus 101% yield strength PPv. Homogenization by improved 22% compared non-extruded form. These findings support low-to-moderate levels applications requiring predictable tunable contributing circular economy goals.

Language: Английский

Citations

0