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- 저자 : Guangyi Lin (검색결과 3 건)
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Carbon Nanotubes Modified by Ionic Liquid and Its Effect on Properties of Silicon Rubber Composites
Yuan Jing,Guangyi Lin,Dongmei Xiao,Limeng Zhu 한국고분자학회 2024 폴리머 Vol.48 No.2
In this paper, multi-walled carbon nanotubes (MWCNTs) were modified using ionic liquids (ILs), and silicone rubber/carbon nanotube composites were prepared. The surface of carbon nanotubes is coated with a layer of ionic liquid by non-covalent bond modification, and the van der Waals force between the carbon nanotubes is reduced to achieve the purpose of improving their dispersibility. The electrical conductivity of silicone rubber/carbon nanotube composites prepared by modified carbon nanotubes is improved. The dispersion of modified carbon nanotubes in silicone rubber matrix and the interface interaction between carbon nanotubes and silicone rubber are analyzed by rubber process analyzer and scanning electron microscopy (SEM) tests. The effects of modified carbon nanotubes on electrical conductivity, mechanical properties and electromagnetic shielding properties of silicone rubber composites were studied. The results show that the dispersion of carbon nanotubes in silicone rubber matrix is improved effectively through the modification of ionic liquid, the conductive property of the composite is improved, the electromagnetic wave reflection of the composite is increased, and the electromagnetic shielding efficiency of the composite is improved, and the shielding efficiency is up to 26 dB.
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Effect of Hollow Microspheres as Reinforcing Fillers on Natural Rubber Composites
Meng Zhao,Linfeng Han,Lin Zhang,Yang Li,Yuan Jing,Ruifang Lv,Huazhang Ma,Guangyi Lin 한국고분자학회 2024 폴리머 Vol.48 No.4
This study aims to investigate the effect of a new hollow microsphere (RiM01) as a reinforcing filler fornatural rubber (NR) instead of carbon black (CB) on rubber composites. The differences in vulcanization characteristicsand mechanical properties of the natural rubber composites are being investigated by carbon black and hollowmicrosphere ratios. The results show that the addition of hollow microspheres decreases the tensile strength, abrasionresistance, and hardness of the rubber composites. However, when the hollow microspheres completely replace carbonblack, the compression set is reduced from the initial 33% to 15%. In addition, the tensile and tear strengths of the rubbercomposites with 50 phr hollow microspheres are only reduced by 7.04% and 1.68% compared with those before aging;with 40 phr hollow microspheres, the 300% constant tensile stresses after aging are enhanced by 45% compared withthose before aging. The aging resistance is improved.
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Yuan Jing,Chunwei Zhang,Su Zhang,Guangyi Lin,Huidong Cao,Jiahui Wen,Zonglong Wang,Yuanyuan Niu,Zetao Lin 한국고분자학회 2023 폴리머 Vol.47 No.6
The application of vegetable oil-based softeners canola oil and cottonseed oil in Solution polymerized styrene-butadiene rubber (SSBR) system composites was investigated. The results showed that when the aromatic oil was replaced by 5 parts of vegetable oil-based softeners in equal amounts in the base formulation of SSBR system, the work-ing performance of the rubber was better, the tear strength and elongation at break were improved and the tensile strength was reduced; the vulcanization time of the rubber prepared with vegetable oil-based softeners was significantly reduced compared with that of aromatic oil; the glass transition temperature of the rubber was significantly reduced and the cold resistance and snow performance of the rubber were improved.
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