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Advances in Materials Science and Engineering
Volume 2014, Article ID 273891, 9 pages
Research Article

Promising Poly( -caprolactone) Composite Reinforced with Weft-Knitted Polyester for Small-Diameter Vascular Graft Application

Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 210620, China

Received 25 March 2014; Revised 7 June 2014; Accepted 16 June 2014; Published 10 July 2014

Academic Editor: Joong-Hee Lee

Copyright © 2014 Fu-Jun Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The present study was designed to improve the mechanical performance of a small-diameter vascular prosthesis made from a flexible membrane of poly(ε-caprolactone) (PCL). PCL reinforcement was achieved by embedding a tubular fabric knitted from polyethylene terephthalate (PET) yarns within the freeze-dried composite structure. The knitting density of PET fabric influenced the mechanical properties of the new vascular graft. Results showed that the composite prototype has good mechanical properties, water permeability, elastic recovery, and suture retention strength. Increases in loop density increased compressive strength and suture retention strength and decreased elastic recovery. The new composite prototype vascular graft has promising potential applications in clinics because of its excellent mechanical properties.