Research into the thermal stability and mechanical properties of vitamin E diffusion modified irradiation cross-linked graphene oxide/ultra-high molecular weight polyethylene composites

Duan, Weipeng; Wu, Meiping; Han, Jitai; Zhang, Ni

doi:10.1039/c9ra09893c

Cited by 22 publications

(26 citation statements)

References 41 publications

(78 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It ascribes to the fact that r‐GO in extracted fibers can work as crystallization core, which can greatly increase the grain size and crystallization rate for extracted fibers. This result was well supported by the DSC analysis and the results of reported literature 63 …”

Section: Resultssupporting

confidence: 90%

“…This result was well supported by the DSC analysis and the results of reported literature. 63 Compared with corresponding extracted fibers, the G (110) and G (200) of drawn fibers decreases due to grain refinement in hot drawing process. 34,61,64 Meanwhile, the grain sizes of modified UHMWPE fiber increase with increasing concentration of m-GO.…”

Section: Crystallinity and Crystal Size Of Uhmwpe Fibersmentioning

confidence: 96%

See 1 more Smart Citation

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Wang

Quan

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

A simple and feasible method to enhance the wear resistance of ultra-high molecular weight polyethylene (UHMWPE) fibers was reported. The graphite oxide (GO) prepared using improved Hummer's method was surface modified with hexadecylamine to improve its compatibility with UHMWPE. Combined with well-dispersion of modified-GO (m-GO) in dichloromethane and the fact that the viscosity of UHMWPE suspension can be decreased by dichloromethane, the well dispersed m-GO/dichloromethane was added into UHMWPE suspension to improve m-GO dispersion in UHMWPE fibers. Finally, UHMWPE fibers with different m-GO concentration were prepared using gel spinning technology. The effect of m-GO concentration on the structure and properties of modified UHMWPE fibers were investigated. The results indicated that the melting temperature and crystallinity of m-GO modified UHMWPE fibers increased with increasing of m-GO concentration, while the fiber's crystal sizes and orientation increased, thus the tensile strength of m-GO modified UHMWPE fibers remained almost undamaged. The introduction of m-GO is beneficial to the formation of smooth transfer film on fiber's surface, which enhanced the self-lubrication of UHMWPE fibers. Compared with pure UHMWPE fiber, the UHMWPE fiber containing 1.5 wt% m-GO had enhanced wear resistance by 55.4% and still maintained high tensile strength of 29.98 cN dtex −1 .

show abstract

Section: Resultssupporting

confidence: 90%

Section: Crystallinity and Crystal Size Of Uhmwpe Fibersmentioning

confidence: 96%

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Wang

Quan

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…If there is a chemical change (such as a change in the crystalline structure of the material) after the sterilization processes and which may affect the material's stability, it is possible to verify these changes by analyzing the resistance of the sample to forced oxidation. TGA is a suitable characterization of oxidative stability in UHMWPE, 51 being widely used in recent studies, 52,53 serving here as a way to compare the sterilization processes with pristine conditions in terms of their thermal stability. According to the results presented in Fig.…”

Section: Thermal Analysismentioning

confidence: 99%

Overview of sterilization methods for UHMWPE through surface analysis

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Duan 7 fabricated graphene oxide (GO)/UHMWPE composites by means of liquid ultrasonic dispersion, hot pressing and irradiation cross‐linking, followed by VE diffusion and homogenization treatment. The results indicated that irradiation cross‐linking and limited VE diffusion can improve the performances of UHMWPE substrate.…”

Section: Introductionmentioning

confidence: 99%

Surface modification and biotribological behavior of UHMWPE nanocomposites with GO infiltrated by ultrasonic induction

Liu

et al. 2020

J Biomed Mater Res

Self Cite

View full text Add to dashboard Cite

In this study, we have innovatively proposed a method for surface modification of ultra‐high molecular weight polyethylene (UHMWPE) artificial joint materials with graphene oxide (GO) infiltrated into UHMWPE substrate by ultrasonic induction. The mechanical properties of UHMWPE nanocomposites with GO infiltrated by ultrasonic induction were compared with that of GO mixed. The molecular structure, wettability, peak load, and bio‐tribological behavior of GO/UHMWPE nanocomposites were studied using fourier transform infrared spectroscopy, contact angle measuring instrument, electronic universal material testing machine, tribometer, and profilometer, respectively. The results show that the ultrasonic‐induction method can make GO adhere to UHMWPE surface well, and GO can significantly improve the wettability of UHMWPE substrate. When the ultrasound‐inducted time is up to 12 hr, the wetting angle of the nanocomposites (12 h‐GO/UHMWPE) is reduced to 65.24°, which is 20.51% lower than that of the pure UHMWPE. The peak load is 183 N, which is 20.22% higher than that of GO/UHMWPE prepared by the mixing method. The bio‐tribological property of UHMWPE nanocomposites with GO infiltrated by ultrasonic induction for 12 hr (12 h‐GO/UHMWPE) is the best, and its friction coefficient keeps more stable at a value of 0.0605 under the lubrication of calf serum, which is 11.81% lower than that of UHMWPE mixed with GO by a traditional method, and the wear rate is decreased to 3.25 × 10−5mm3N−1 m−1.

show abstract

Research into the thermal stability and mechanical properties of vitamin E diffusion modified irradiation cross-linked graphene oxide/ultra-high molecular weight polyethylene composites

Abstract: Recently, there has been increasing interest in modifying ultra-high molecular weight polyethylene (UHMWPE) due to glaring needs in the artificial joint replacement field.

Cited by 22 publications

References 41 publications

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Overview of sterilization methods for UHMWPE through surface analysis

Surface modification and biotribological behavior of UHMWPE nanocomposites with GO infiltrated by ultrasonic induction

Contact Info

Product

Resources

About