SURFACE MODIFIED HEXAGOBAL BORON NITRIDE AS PROPER NANOFILLER FOR THERMAL MANAGEMENT APPLICATIONS

  • سال انتشار: 1395
  • محل انتشار: سومین همایش ملی تکنولوژی های نوین در شیمی،پتروشیمی و نانو ایران
  • کد COI اختصاصی: TCPCO03_079
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 846
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نویسندگان

M Salehirad

Faculty of Science, Chemistry Department, IK International University, Qazvin, Iran

M.M Alavi Nikje

Faculty of Science, Chemistry Department, IK International University, Qazvin, Iran

L Ahmadian-Alam

Niroo Research Institute, Chemistry and Processing Center, Tehran, Iran

F Hashemi Nasr

Niroo Research Institute, Chemistry and Processing Center, Tehran, Iran

چکیده

Hexagonal boron nitride (h-BN) nanosheets have been widely used to create fluids for thermal management applications due to their high thermal conductivity. For better dispersion, h-BN nanosheets were functionalized with hexadecylamine (HDA) to induce the exfoliation of the layered structure of h-BN. It is expected that surface modification provides good compatibility and a good dispersion of h-BN nanosheets in oil-based nanofluid and enhances its thermal conductivity. Modification of h-BN nanosheets was characterized by fourier transform infrared (FT-IR) and thermogravimetric analysis (TGA). Also, the attachment of HDA modifier agent on the surface of h-BN nanosheets was studied using X-ray diffraction (XRD). FT-IR and TGA results indicated that HDA was successfully grafted onto the h-BN nanosheets. In addition, the morphology and crystalline structure of h-BN nanosheets before and after the modification processes were studied by scanning electron microscopy (SEM) and XRD, respectively. The oil-based nanofluid containing 0.05% h-BN nanosheets shows an improvement in thermal conductivity, 36% higher than that for pristine oil

کلیدواژه ها

Thermal management, Nanofluids, 2D materials, h-BN nanosheets, Surface modification

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