With the miniaturization of electronic devices and the development of integrated circuit chips in higher density and higher frequencies, thermal management has become one of the most critical challenges in device performance and reliability. Thermal interface material is bonded between the chip and heat sink. In addition to its thermal conductivity, the mechanical property is essential. Good resilience can effectively fill the bonding gap and reduce thermal resistance, thus improve the overall thermal conductivity. In this paper, three methods are adopted to prepare BN nanosheets/polymer composites. Two polymer composites materials with BN nanosheets oriented were prepared through different suction filtration methods, and the process of homogenization and mixing prepared another sample. Then the microscopic appearance structure of the three materials was analyzed by scanning electron microscope(SEM). The anisotropic compression resilience and tensile properties were studied, respectively. The study showed that BN nanosheet-oriented materials have anisotropic mechanical properties. The better the orientation performance, the greater the difference in the anisotropic mechanical properties of the composite materials. Under the pressure of 0.08MPa, materials with better BN nanosheet orientation have excellent compression and resilience performance, but homogeneous composite materials have the best compression resilience performance. The tensile properties of the three composite materials are quite different. The tensile strength of the homogeneously composite materials can reach 119.59%, while the in-plane and through-plane tensile strength of the other two materials can reach 102.84%,38.52%, and 67.65%, 46.67%, respectively.@en

Water-purifying materials are of vital importance for providing sanitary water, especially in epidemic and disaster areas and for wilderness survival. Here, we report a novel inorganic composite with a fast, reusable, and pleiotropic water purification ability. The composite of heterogeneous Ni-La2O3 nanofibers was developed using an easy, low-cost, and large-scale production process, i.e., an electrospinning technique. Because of the unique heterostructure formed by introducing nickel nanoparticles into the La2O3 host, the nanocomposite fibers can rapidly remove various detrimental micropollutants with absorption rate constants hundreds of times greater than those of inorganic materials and activated carbons. In addition, the nanocomposite can be recycled by a soft washing procedure at ambient temperature and demonstrates a much more stable performance than the state-of-the-art activated carbon materials. Furthermore, the nanofibers have an excellent germicidal effect against the high-risk human pathogen Escherichia coli. Our work introduces a promising inorganic absorbent suitable for purifying life-sustaining water supplies in emergency situations and alleviating worldwide water shortages.@en