• 접착 및 계면
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• 제14권2호
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• pp.82-87
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• 2013

본 연구에서는 레졸, 질산철 그리고 트리블럭 공중합체를 이용하여 직접 탄화과정에 의해 자성체 나노입자가 분산된 탄소나노세공체를 합성하였다. 나노세공 마그네타이트/카본($Fe_3O_4$/carbon) 나노복합체는 낮은 마그네타이트 함량(1 wt%)을 가지고 잘 배열된 이차원적 육방체 구조(p6mm)를 보이며, 균일한 세공크기(3.6 nm), 높은 표면적(635 $m^2/g$)과 세공부피(0.48 $cm^3/g$)를 가진다. 작은 입자크기(10.2 nm)를 가지는 마그네타이트 나노입자는 초상자기성(7.7 emu/g)을 보이고 탄소 세공벽 내에 잘 분산되었다. 나노세공 마그네타이트/카본 물질은 최대 995 mg/g의 아이부프로펜 흡착량을 보였다. 또한, 자석을 이용하여 용액과 나노세공 마그네타이트/카본 물질의 분리가 용이하였다. 본 연구에서 제조된 나노복합체는 우수한 아이부프로펜 흡착제로 작용하였다.

• Advances in nano research
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• 제14권5호
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• pp.435-442
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• 2023

Sports activities, including playing tennis, are popular with many people. As this industry has become more professionalized, investors and those involved in sports are sure to pay attention to any tool that improves athletes' performance Tennis requires perfect coordination between hands, eyes, and the whole body. Consequently, to perform long-term sports, athletes must have enough muscle strength, flexibility, and endurance. Tennis rackets with new frames were manufactured because tennis players' performance depends on their rackets. These rackets are distinguished by their lighter weight. Composite rackets are available in many types, most of which are made from the latest composite materials. During physical exercise with a tennis racket, nanocomposite materials have a significant effect on reducing injuries. Materials as strong as graphite and thermoplastic can be used to produce these composites that include both fiber and filament. Polyamide is a thermoplastic typically used in composites as a matrix. In today's manufacturing process, materials are made more flexible, structurally more vital, and lighter. This paper discusses the production, testing, and structural analysis of a new polyamide/Multi-walled carbon nanotube nanocomposite. This polyamide can be a suitable substitute for other composite materials in the tennis racket frame. By compression polymerization, polyamide was synthesized. The functionalization of Multi-walled carbon nanotube (MWCNT) was achieved using sulfuric acid and nitric acid, followed by ultrasonic preparation of nanocomposite materials with weight percentages of 5, 10, and 15. Fourier transform infrared (FTIR) and Nuclear magnetic resonance (NMR) confirmed a synthesized nanocomposite structure. Nanocomposites were tested for thermal resistance using the simultaneous thermal analysis (DTA-TG) method. scanning electron microscopy (SEM) analysis was used to determine pores' size, structure, and surface area. An X-ray diffraction analysis (XRD) analysis was used to determine their amorphous nature.