Shaojun LIU
,
Xiaobo WEI
,
Zhaodou CHEN
,
Jun CAI
,
Benkun MA
材料科学技术（英）
In this paper, we deduce the analytical form of many-body interatomic potentials based on the Green’s function in tight-binding representation. The many-body potentials are expressed as the functions of the hopping integrals, which are the physical origin of cohesion of atoms. For the simple case of s-valent system, the inversion of the many-body potentials is discussed in detail by using the lattice inversion method.
关键词:
Chuanli QIN
,
Dongyan TANG
,
Jun CAI
,
Jusheng.ZHANG
,
Weimin CAI
,
Xiaodong SUN
材料科学技术（英）
Polyurethane/(vinyl ester resin) interpenetrating polymer network (PU/VER IPN) materials with broad temperature ranges and excellent damping properties from low temperature to room temperature were prepared. The influence of comonomers and component ratios on the compatibility and damping properties of IPN materials was studied by DMA which indicates that such properties are improved by introducing acrylic esters instead of polystyrene (PSt) into VER comonomer system. The detected results of microstructure by AFM show that the phase ranges of the dual-phase continuous IPN materials obtained are both in nanometer scale. The results of mechanical properties show that IPN materials show the regulation from elastic deformation to brittle deformation with the increase of VER
proportion.
关键词:
Interpenetrating polymer network
,
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,
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,
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