Surface modification of ultra-high molecular weight polyethylene fiber by different kinds of SiO<sub>2</sub>nanoparticles

Zhao, Xiaolin; Du, Jia; Yang, Hongwei; Jia, Chengchang; Wang, Yuanli; Wang, Dafeng; Lv, Yingying

doi:10.1002/pc.23763

Cited by 12 publications

(7 citation statements)

References 23 publications

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“…According to curves (B) and (C), the OH content increased after the silica sol treatment, and the vibration peaks of SiOSi and SiO increased to different extents. By comparing with the conclusions of previous researchers, 34 it is shown that SiO 2 was adsorbed on the surface of ceramic microspheres. The SiOSi and SiO vibration peaks in curve (B) are larger than those in curve (C), indicating that the SiOSi bond was generated by SiO 2 and microspheres after heat treatment.…”

Section: Resultssupporting

confidence: 58%

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Li,

Zhou,

Liu

et al. 2024

Polymer Composites

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Silica sol can activate the surface of hollow ceramic microspheres and improve the properties of composite materials by improving the interface between the microspheres and the epoxy resin. The group changes on the surface of microspheres were measured using infrared spectroscopy. The microspheres were observed with a scanning electron microscope. The density, water absorption, and mechanical properties of the materials were tested using scales and mechanical testing machines. The results showed that SiO2 and silane molecules were introduced on the surface of the microspheres after treatments. As the silica sol content increased, the slurry viscosity increased by 34.5%, the composite density increased by 5.8%, and the water absorption decreased by 35.8%. When the silica sol content was 25%, the flexural strength and compressive strength of the composites were 73.49 and 116.27 MPa, respectively, which were 37.8% and 23.6% higher than those of the untreated composites, and the mechanical properties became clearly improved. High mechanical properties enable the materials to be used in deeper ocean areas.Highlights Nanoparticles are introduced onto the surface of hollow microspheres. The activated microspheres can bind better to the silane coupling agent. Silane coupling agent assisted by silica sol improved interfacial bonding. Surface activation of microspheres improves the properties of composites.

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Section: Resultssupporting

confidence: 58%

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Li,

Zhou,

Liu

et al. 2024

Polymer Composites

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“…Although the high molecular weight of UHMWPE endows many excellent properties, it also brings many difficulties in the processing of the material. 3,4 UHMWPE has an extremely high melt viscosity and very weak flowability (melt flow rate is near 0 g 10 min À1 ). 3,5 This is a direct consequence of the fact that UHMWPE cannot be processed on conventional extruders and injection molding machines.…”

Section: Introductionmentioning

confidence: 99%

“…It is used in a number of applications in industry and civilian, such as bearings, wear‐resistant pipes, skis and artificial bone replacement materials. Although the high molecular weight of UHMWPE endows many excellent properties, it also brings many difficulties in the processing of the material 3,4 . UHMWPE has an extremely high melt viscosity and very weak flowability (melt flow rate is near 0 g 10 min −1 ) 3,5 .…”

Section: Introductionmentioning

confidence: 99%

Size effects of silica on the viscosity of ultra‐high molecular weight polyethylene and its disentanglement mechanism

Liu

et al. 2023

J of Applied Polymer Sci

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The viscosity of the polymer composites is closely related to the size effect of the filler. In this study, the size effects of silica fillers on the viscosity of ultrahigh molecular weight polyethylene (UHMWPE) was investigated. The addition of 200 nm and 5 μm silica increase the viscosity, but the 7 nm silica can significantly decrease the viscosity. In order to understand the mechanism of this phenomenon, the multilevel factors of the sample in terms of matrix structure (amorphous phase entanglement, mesophase and crystalline region content) and the mobility of chain segments were analyzed. Rheology and DMA tests have shown that silica affects viscosity mainly by influencing the entanglement in the amorphous phase. Raman tests show that 7 nm silica decrease the viscosity mainly by affecting the content of the mesophase and the mobility of the chain segments in the amorphous region. The annealing process was investigated by Flash DSC, and it was found that 7 nm SiO2 can accelerate the mobility of UHMWPE chains to form a larger recrystallization area, and the addition of 200 nm and 5 μm SiO2 did not show a similar phenomenon, proving the strong size effect of SiO2 on the viscosity and disentanglement of UHMWPE.

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“…An ultra-high molecular weight polyethylene (UHMWPE) fiber is characterized by high strength, low density, and outstanding toughness [ 1 , 2 , 3 ]. Nowadays, it has played a vital role in individual protection, armor protection, and other essential areas [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Superior Enhancement of the UHMWPE Fiber/Epoxy Interface through the Combination of Plasma Treatment and Polypyrrole In-Situ Grown Fibers

et al. 2023

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Obtaining a robust fiber/matrix interface is crucial for enhancing the mechanical performance of fiber-reinforced composites. This study addresses the issue by presenting a novel physical–chemical modification method to improve the interfacial property of an ultra-high molecular weight polyethylene (UHMWPE) fiber and epoxy resin. The UHMWPE fiber was successfully grafted with polypyrrole (PPy) for the first time after a plasma treatment in an atmosphere of mixed oxygen and nitrogen. The results demonstrated that the maximum value of the interfacial shear strength (IFSS) of the UHMWPE fiber/epoxy reached 15.75 MPa, which was significantly enhanced by 357% compared to the pristine UHMWPE fiber. Meanwhile, the tensile strength of the UHMWPE fiber was only slightly reduced by 7.3%, which was furtherly verified by the Weibull distribution analysis. The surface morphology and structure of the PPy in-situ grown UHMWPE fibers were studied using SEM, FTIR, and contact angle measurement. The results showed that the enhancement of the interfacial performance was attributed to the increased fiber surface roughness and in-situ grown groups, which improved the surface wettability between the UHMWPE fibers and epoxy resins.

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Surface modification of ultra-high molecular weight polyethylene fiber by different kinds of SiO₂nanoparticles

Cited by 12 publications

References 23 publications

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Size effects of silica on the viscosity of ultra‐high molecular weight polyethylene and its disentanglement mechanism

Superior Enhancement of the UHMWPE Fiber/Epoxy Interface through the Combination of Plasma Treatment and Polypyrrole In-Situ Grown Fibers

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Surface modification of ultra-high molecular weight polyethylene fiber by different kinds of SiO2nanoparticles

Cited by 12 publications

References 23 publications

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Size effects of silica on the viscosity of ultra‐high molecular weight polyethylene and its disentanglement mechanism

Superior Enhancement of the UHMWPE Fiber/Epoxy Interface through the Combination of Plasma Treatment and Polypyrrole In-Situ Grown Fibers

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Product

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Surface modification of ultra-high molecular weight polyethylene fiber by different kinds of SiO₂nanoparticles