Abstract
Ultrahigh molecular weight polyethylene (UHMWPE)/WS2 nanoparticle fibers were prepared by adding WS2 nanoparticles treated by coupling agent in the precursor solution of UHMWPE. The influence of WS2 nanoparticles on the microstructure and properties of UHMWPE fibers was characterized by SEM, TGA, mechanical property measurement and bullet-shock test. The results showed that WS2 nanoparticles can be uniformly dispersed in the UHMWPE fiber. After incorporating of WS2 nanoparticles, UHMWPE fibers became stiffer and tougher than the pristine ones. Particularly, the modulus of the fiber increased from 1203 to 1326 cN/dtex. Furthermore, UHMWPE/WS2 fibers showed an improved thermal stability.
Highlights
Ultrahigh molecular weight polyethylene (UHMWPE)/WS2 nanoparticle fibers were prepared by adding WS2 nanoparticles treated by coupling agent in the precursor solution of UHMWPE
Our results prove that incorporation of WS2 nanoparticles, especially functionalized WS2 nanoparticles, into UHMWPE can improve the mechanical properties of UHMWPE fibers
Tensile strain can be transferred from the UHMWPE fiber to WS2 nanoparticles due to the strong interactions between them, which lead to improved mechanical properties of the composite fibers [15]
Summary
The average molecular weight of UHMWPE, which was produced by Celanese (Nanjing) Chemical Co., Ltd., was about 4.5×106. White oil was supplied by Total Co., Ltd. Extraction agent (Exxsol D60) was from Exxon Mobil Co., Ltd. Antioxidant (B215) was obtained from Tangshan Baifu Chemical Co., Ltd. IF-WS2 nanoparticles with an average diameter of 60–120 nm were bought from Changsha Huajing Powdery Material Technological Co., Ltd. Silane coupling agent (KH550) was got from Qingdao Haida. Chemical Co., Ltd. Commercial nonanhydrous alcohol was used as received. 300 g IF-WS2 nanoparticles, 24 g silane coupling agent and a certain amount of nonanhydrous alcohol were put into a 500 mL three-mouth flask with mechanical stirring. The surface modified IF-WS2 nanoparticles were mixed with UHMWPE at different percentage (1 wt‰, 2 wt‰, 3 wt‰ and 4 wt‰), a certain amount of antioxidants and white oil were added with stirring to prepare a solid- liquid suspension with a polymer concentration of 8 wt%. Resin of UHMWPE/WS2 composite was prepared after swelling at high-temperature and dissolution with stirring. UHMWPE/WS2 fibers were obtained by extracting, drying and heating tension from UHMWPE/WS2 gel fibers
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
