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Advisor(s)
Abstract(s)
The development of materials and devices to replace or restore damaged tissue functions has a prominent
position in the scientific community, promoting the interest for metal-free alternatives, like composites.
These proved to be a promising option as, besides new matrix and reinforcement combinations, new
manufacturing methods tend to fulfil tailored requirements of the medical field. In this sense, we
manufactured glass fiber/polyurethane composite plates for Osteosynthesis. Models based on commercial
LCP implants were 3D printed and used to generated molds through a new adapted resin casting
process. Additional mechanical tests showed that reinforcement additions between 10 wt% and 25 wt%
caused an increase in the bending structural stiffness by 126%-165% when compared to pure polymer
implants. In addition, if the number of holes is increased, from 4 to 6, the maximum stress reduces by 40%.
The manufacturing process was an effective alternative as it presented low cost, high customization and
allowed the development of complex geometries, resin injection and degassing.
Description
Keywords
Plates for osteosynthesis Manufacturing process Fracture healing Gravity casting Biomaterials
Pedagogical Context
Citation
Sales, Flaminio C. P.; Moura, P. Ana de; Costa, Romeu R. C. Da; Ribeiro, João E. (2023). Manufacture of bone fracture plates based on glass fiber reinforced polyurethane composite: a gravity casting adapted process. Materials and Manufacturing Processes. ISSN 1532-2475. 38:9, p. 1170-1179
Publisher
Taylor and Francis