Development of Fabric Sintering/Compaction Process to Produce Porous UHMW Polyethylene Composites

Abstract

Implants based on solid (nonporous) Ultra High Molecular Weight (UHMW) polyethylene have serious disadvantages such as generation of fine polymer particles, because of the lack of internal natural lubricant inside the implant body. A novel family of porous multilayer composites based on Ultra High Molecular Weight (UHMW) polyethylene commercial fabrics has been developed. These composites are produced using a compaction/sintering process with a compression molding technique. The developed porous materials have much higher tensile strength than solid (nonporous) UHMW polyethylene materials.

Preparation of interconnected poly(ε-caprolactone) porous scaffolds by a combination of polymer and salt particulate leaching

“…Briefly, the melt-molding step consists in premixing polymer powder and solid porogen particulates and hot-pressing them together. The samples are then subjected to the same solid porogen leaching step as for the solvent-cast samples [26][27][28][29]. In a general manner, the major advantage of particulate leaching methods is the effective control of porosity and pore size.…”

Study on the Tribological Properties of Porous UHMWPE

“…F.Shutov and V.T.Ananthanarayan [6][7] developed porous UHMWPE for biomedical applications. Maximum porosity of 60% was obtained.…”