Injection Molding of Long-Fiber-Reinforced Thermoplastics

Schmid, Ben L.; Fritz, H.‐G.

doi:10.1007/978-94-009-0787-4_18

Cited by 1 publication

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“…The purpose of this study is to build a tubular fibrous structure for tissue engineering stents. The long fiber-reinforced thermoplastic (LFT) technique is used to combine fibers and thermoplastic resin matrix, the latter of which is made by extrusion and has a relatively good dimensional stability [17,18]. When being extruded, the polymer flows along the fiber's direction, forming a fibrous framework.…”

Section: Introductionmentioning

confidence: 99%

Tissue engineering stent model with long fiber-reinforced thermoplastic technique

Lin

Huang

et al. 2020

J Mater Sci: Mater Med

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This study aims to construct tissue engineering stents by using the long fiber-reinforced thermoplastic (LFT) technique to develop artery stents. The experimental method combines fibers, the LFT technique, and electrospinning technique. First, the biodegradable polyvinyl alcohol yarns are twisted and coated in polycaprolactone/polyethylene glycol blends through the LFT technique. Next, the weft-knitting and heat treatment are used to establish the stent structure, after which poly (ethylene oxide) (PEO) is electrospun to coat the stents. The morphology, mechanical, and biological properties of tissue engineering stents are evaluated. The test results indicated that the use of the LFT technique retains the softness of filaments, which facilitates the subsequent weft-knitting process. The coating of blends and electrospinning of PEO have a positive influence on the tissue engineering stents, as demonstrated by the tensile strength of 59.93 N and compressive strength of 6.10 N. Moreover, the in vitro degradation of stents exhibits a stabilized process. The water contact angle is 20.33°, and the cell survival rate in 24 h is over 80%. The proposed tissue engineering stents are good candidates for artery stent structure.

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Section: Introductionmentioning

confidence: 99%