𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Development of a bioactive glass fiber reinforced starch–polycaprolactone composite

✍ Scribed by H. Jukola; L. Nikkola; M. E. Gomes; F. Chiellini; M. Tukiainen; M. Kellomäki; E. Chiellini; R. L. Reis; N. Ashammakhi

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
147 KB
Volume
87B
Category
Article
ISSN
1552-4973

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

For bone regeneration and repair, combinations of different materials are often needed. Biodegradable polymers are often combined with osteoconductive materials, such as bioactive glass (BaG), which can also improve the mechanical properties of the composite. The aim of this work was to develop and characterize BaG fiber reinforced starch–poly‐ε‐caprolactone (SPCL) composite. Sheets of SPCL (30/70 wt %) were produced using single‐screw extrusion. They were then cut and compression‐molded in layers with BaG fibers to form composite structures with different combinations. Mechanical and degradation properties of the composites were studied. The actual amount of BaG in the composites was determined using combustion tests. Initial mechanical properties of the reinforced composites were at least 50% better than the properties of the nonreinforced specimens. However, the mechanical properties of the composites after 2 weeks of hydrolysis were comparable to those of the nonreinforced samples. During the 6 weeks hydrolysis the mass of the composites had decreased only by about 5%. The amount of glass in the composites remained as initial for the 6‐week period of hydrolysis. In conclusion, it is possible to enhance initial mechanical properties of SPCL by reinforcing it with BaG fibers. However, mechanical properties of the composites are typical for bone fillers and strength properties need to be further improved for allowing more demanding bone applications. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2008

📜 SIMILAR VOLUMES

Synthesis and evaluation of novel bioact
Synthesis and evaluation of novel bioactive composite starch/bioactive glass microparticles
✍ Silva, G. A. ;Costa, F. J. ;Coutinho, O. P. ;Radin, S. ;Ducheyne, P. ;Reis, R. L 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 331 KB

## Abstract The aim of the development of composite materials is to combine the most desired properties of two or more materials. In this work, the biodegradable character, good controlled‐release properties, and natural origin of starch‐based biomaterials are combined with the bioactive and bone‐b

Reconstruction of critical size calvaria
Reconstruction of critical size calvarial bone defects in rabbits with glass–fiber-reinforced composite with bioactive glass granule coating
✍ Sari M.-R. Tuusa; Matti J. Peltola; Teemu Tirri; Mervi A. Puska; Matias Röyttä; 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 494 KB

## Abstract The aim of this study was to evaluate glass–fiber‐reinforced composite as a bone reconstruction material in the critical size defects in rabbit calvarial bones. The bone defect healing process and inflammatory reactions were evaluated histologically at 4 and 12 weeks postoperatively. Po

Short-term flexural creep behavior and m
Short-term flexural creep behavior and model analysis of a glass-fiber-reinforced thermoplastic composite leaf spring
✍ C. Subramanian; S. Senthilvelan 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 627 KB

## Abstract Present work investigated the short‐term flexural creep performance of fiber reinforced thermoplastic injection molded leaf springs. Unreinforced polypropylene, 20 wt % short and 20 wt % long glass fiber reinforced polypropylene materials were injection‐molded into constant thickness va

Preparation and Mechanical Properties of
Preparation and Mechanical Properties of Long Glass Fiber Reinforced PA6 Composites Prepared by a Novel Process
✍ Ke-qing Han; Zheng-jun Liu; Mu-huo Yu 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 225 KB

## Abstract **Summary:** Long glass fiber reinforced PA6 (LGF/PA6) prepregs were prepared by impregnating PA6 oligomer melt into reinforcing glass fiber followed by subsequent solid‐state polymerization (SSP) to obtain LGF/PA6 composite pellets. A conventional injection‐molding machine suitable for

Processability and mechanical performanc
Processability and mechanical performance of hybrid composites based on poly(ether sulfone) modified with a glass fiber–reinforced liquid crystalline polymer
✍ M. García; J. I. Eguiazábal; J. Nazábal 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 278 KB 👁 2 views

## Abstract Hybrid composites, based on poly(ether sulfone) (PES) and glass fiber–reinforced copolyester liquid crystalline polymer (gLCP) up to 40% gLCP, were obtained by injection molding: these polymers were immiscible. Despite its higher viscosity, the gLCP acted as a processing aid for PES. Th