Composites of UHMWPE fiber reinforced PU/epoxy grafted interpenetrating polymer networks

Lin, Shing-Jong; Han, J. L.; Yeh, Jen‐Taut; Chang, Feng‐Chih; Hsieh, K. H.

doi:10.1016/j.eurpolymj.2006.12.001

Cited by 102 publications

(47 citation statements)

References 23 publications

(17 reference statements)

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“…1,2 The advantages of UHMWPE such as high tensile strength, good wear resistance, and chemical stability were appropriate for the biological and mechanical requirements of orthopedic applications, 3 but the focal problems such as the postoperative osteolysis induced by UHMWPE wear particles and the poor bone-implant healing interface caused by scarcity of biocompatibility were needed to be solved imperatively.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of vascular endothelial growth factor-loaded silk fibroin to improve biological performance of ultra-high-molecular-weight polyethylene via promoting angiogenesis

Ai¹,

Sheng²,

Cai³

et al. 2017

IJN

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Ultra-high-molecular-weight polyethylene (UHMWPE) has been applied in orthopedics, as the materials of joint prosthesis, artificial ligaments, and sutures due to its advantages such as high tensile strength, good wear resistance, and chemical stability. However, postoperative osteolysis induced by UHMWPE wear particles and poor bone–implant healing interface due to scarcity of osseointegration is a significant problem and should be solved imperatively. In order to enhance its affinity to bone tissue, vascular endothelial growth factor (VEGF) was loaded on the surface of materials, the loading was performed by silk fibroin (SF) coating to achieve a controlled-release delivery. Several techniques including field emission scanning electron microscopy (FESEM) and attenuated total reflectance (ATR)-Fourier transform infrared (FTIR) and water contact angle measurement were used to validate the effectiveness of introduction of SF/VEGF. The result of ELISA demonstrated that the release of VEGF was well maintained up to 4 weeks. The modified UHMWPE was evaluated by both in vitro and in vivo experiments. According to the results of FESEM and cell counting kit-8 (CCK-8) assay, bone marrow mesenchymal stem cells cultured on the UHMWPE coated with SF/VEGF and SF exhibited a better proliferation performance than that of the pristine UHMWPE. The model rabbit of anterior cruciate ligament reconstruction was used to observe the graft–bone healing process in vivo. The results of histological evaluation, microcomputed tomography (micro-CT) analysis, and biomechanical tests performed at 6 and 12 weeks after surgery demonstrated that graft–bone healing could be significantly improved due to the effect of VEGF on angiogenesis, which was loaded on the surface by SF coating. This study showed that the method loading VEGF on UHMWPE by SF coating played an effective role on the biological performance of UHMWPE and displayed a great potential application for anterior cruciate ligament reconstruction.

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Section: Introductionmentioning

confidence: 99%

Surface modification of vascular endothelial growth factor-loaded silk fibroin to improve biological performance of ultra-high-molecular-weight polyethylene via promoting angiogenesis

Ai¹,

Sheng²,

Cai³

et al. 2017

IJN

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“…This behaviorism is mainly because the permanent entanglement between the VER and PU. The soft property of PU influences to the maximum extent and affects the brittle property of VER, by the way it exhibits higher impact strength than the neat resin of VER [14,22] .…”

Section: Impact Strength Resultsmentioning

confidence: 99%

“…Whereas the carbon reinforced IPNs shown Lateral failure in the gage area (pull-out fracture mechanism) [14] . The reason for pull out may be mainly because of the absence of bonding between fiber and matrix.…”

Section: Tensile Strength Resultsmentioning

confidence: 99%

“…The reason for this decreasing trend in compressive stress and modulus may be attributed to ether linkages present in PU Pre polymer which offers flexibility to the IPN formulation [23] . [8,14] . Nevertheless, the elongation of these two IPN reinforced composites were quite different, this mainly because of the strength of the fibre reinforcement.…”

Section: Compressive Strength Resultsmentioning

confidence: 99%

“…Despite there are many publications on IPNs based composite, reinforcement of fiber in polymer blends is limited [7][8][9][10][11][12][13][14] . In our present study, definite proportions of VER/PU IPNs are synthesised at room temperature and the same reinforced with the E-Glass Fiber (Silane Treated Glass Fibre to have better interaction with the resin) and Carbon Fiber, since both the fibers are advantageous in all the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the mechanical properties of E-Glass fiber/carbon fiber reinforced interpenetrating polymer networks

Suresh

Jayakumari

2015

Polímeros

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SbstractA series of vinyl ester and polyurethane interpenetrating polymer networks were prepared by changing the component ratios of VER (Vinyl ester) and PU (Polyurethane) and the polymerization process was confirmed with Fourier Transform infrared spectroscopy. IPN (Inter Penetrating Polymer Network -VER/PU) reinforced Glass and carbon fiber composite laminates were made using the Hand lay up technique. The Mechanical properties of the E-glass and carbon fiber specimens were compared from tests including Tensile, Compressive, Flexural, ILSS (Inter Laminar Shear Strength), Impact & Head Deflection Test (HDT). The IPN Reinforced Carbon fiber specimen showed better results in all the tests than E-Glass fibre reinforced IPN laminate with same thickness of the specimen, according to ASTM standards. It was found that the combination of 60%VER and 40%PU IPN exhibits better impact strength and maximum elongation at break, but at the slight expense of mechanical properties such as tensile, compressive, flexural, ILSS properties. The morphology of the unreinforced and reinforced composites was analyzed with help of scanning electron microscopy.

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Fiber Reinforcement: Continuous Fibers

Sınmazçelik

Bora

oban

et al. 2012

Wiley Encyclopedia of Composites

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Composite materials have the final properties, which are combination of the main constituents of matrix and fiber. In order to get target properties, fiber should have unique properties. Fibers are responsible for having superior properties which are important to upgrade the properties of the matrix. In this article, general information about continuous fibers are given, also the contemporary studies about most familiar fibers are focused.

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Composites of UHMWPE fiber reinforced PU/epoxy grafted interpenetrating polymer networks

Cited by 102 publications

References 23 publications

Surface modification of vascular endothelial growth factor-loaded silk fibroin to improve biological performance of ultra-high-molecular-weight polyethylene via promoting angiogenesis

Surface modification of vascular endothelial growth factor-loaded silk fibroin to improve biological performance of ultra-high-molecular-weight polyethylene via promoting angiogenesis

Evaluating the mechanical properties of E-Glass fiber/carbon fiber reinforced interpenetrating polymer networks

Fiber Reinforcement: Continuous Fibers

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