Study on biocompatible PLLA–PEG blends with high toughness and strength via pressure-induced-flow processing
Abstract
In this paper, we report a novel and facile method of pressure-induced-flow (PIF) processing that remarkably enhanced the mechanical properties of polylactic acid (PLLA)–PEG blends. The impact strength and bending strength increased by about 20 and 4 times, respectively. Meanwhile, the tensile strength and elongation at break were 3 and 7 times higher compared with raw samples. As indicated by DSC and polarizing microscopy, POM, oriented spherulites were present in the sample after PIF processing. The SEM results showed that the fracture surface of the PIF samples became oriented and much rougher. The cell culture results indicated that the PLLA–PEG blends after PIF processing still maintain as good biocompatibility as the original.
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With PIF processing, crystalline lamellae fractured and subsequently reoriented along the flow direction.
“According to our previous researches on PP [26] and PLA/PEG blends [28], with PIF-processing, crystalline lamellae fractured and subsequently reoriented along FD direction.”
From Simultaneously Toughening and Strengthening of PLA-b-PCL Copolymer via Pressure-induced-flow Processing at Room Temperature (2018) · cites this paper as [28]
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- Authors
- Feng, X., Zhang, S., Zhu, S., Han, K., Jiao, M., Song, J., Ma, Y., & Yu, M.
- Affiliations
- Donghua University (CN)
- Corresponding author
- Ma, Yu
- Yu, Muhuo
- Venue
- RSC Advances
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 3
- Issue
- 29
- Pages
- 11738
- ISSN
- 2046-2069 (ISSN-L)
- OpenAlex
- W1984987835
- Cited by
- 21
- References
- 37
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 1 · 2022: 2 · 2021: 1 · 2020: 2 · 2019: 1 · 2018: 3 · 2017: 3 · 2016: 3 · 2015: 3
- FWCI
- 0.76
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- RSC Advances (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
- Keywords
- polylactic acid, polyethylene glycol, polymer blends, mechanical properties, impact strength, flexural strength, tensile strength, elongation at break, spherulites, fracture morphology, biocompatibility, cell culture
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