The bilayer devices using a mixture film of triplet emitting material Cu 4(C≡CPh 4) 4L 2[L=1,8 bis(diphenyl phosphino) 3,6 dioxaoctane](Cu 4) and hole transport polymer poly(9 vinylcarbazole)(PVK) as emitting layer, ...The bilayer devices using a mixture film of triplet emitting material Cu 4(C≡CPh 4) 4L 2[L=1,8 bis(diphenyl phosphino) 3,6 dioxaoctane](Cu 4) and hole transport polymer poly(9 vinylcarbazole)(PVK) as emitting layer, electron transport material TAZ as the electron transport layer were prepared. Different devices that formed by varied Cu 4 ratios show different light emitting properties through singlet triplet and triplet triplet energy transfer. The result showed a new application of triplet emitting materials.展开更多
通过扫描电子显微镜观察了天然橡胶和高吸水树脂共混体系的微观相态结构 ,研究了两亲性嵌段共聚物PEO b PBA结构本身的吸水能力对天然橡胶和高吸水性树脂共混体系吸水性能及力学性能的影响。结果表明 ,PEO b PBA结构本身的吸水强弱对共...通过扫描电子显微镜观察了天然橡胶和高吸水树脂共混体系的微观相态结构 ,研究了两亲性嵌段共聚物PEO b PBA结构本身的吸水能力对天然橡胶和高吸水性树脂共混体系吸水性能及力学性能的影响。结果表明 ,PEO b PBA结构本身的吸水强弱对共混体系的吸水能力贡献很小 ,但却可以显著提高共混体系的吸水膨胀能力和力学性能 。展开更多
This paper analyzes the valence electron structures of Titanium Aluminides according to the EET and expounds the natural reasons of the property or phenomenon occurring in their crystal structures, solubility and the ...This paper analyzes the valence electron structures of Titanium Aluminides according to the EET and expounds the natural reasons of the property or phenomenon occurring in their crystal structures, solubility and the range of Al content of ordered compound from the variation of their atomic states and bond structures.展开更多
Polymer positive temperature coefficient(PTC) material comprising conductive particles, e.g. carbon black(CB), dispersed in polymer matrix is suitable for use as electrical devices such as circuit overcurrent protecti...Polymer positive temperature coefficient(PTC) material comprising conductive particles, e.g. carbon black(CB), dispersed in polymer matrix is suitable for use as electrical devices such as circuit overcurrent protection device, self-regulation heaters, sensors, etc.. In this paper, the PTC effect of carbon black filled polyethylene and ethylene-propylene-diene terpolymer blends was studied. Effects of raw material ratio and type of carbon black were investigated. The distribution of CB in polymer matrix and the function of crystallites on PTC effect were discussed.展开更多
文摘The bilayer devices using a mixture film of triplet emitting material Cu 4(C≡CPh 4) 4L 2[L=1,8 bis(diphenyl phosphino) 3,6 dioxaoctane](Cu 4) and hole transport polymer poly(9 vinylcarbazole)(PVK) as emitting layer, electron transport material TAZ as the electron transport layer were prepared. Different devices that formed by varied Cu 4 ratios show different light emitting properties through singlet triplet and triplet triplet energy transfer. The result showed a new application of triplet emitting materials.
文摘通过扫描电子显微镜观察了天然橡胶和高吸水树脂共混体系的微观相态结构 ,研究了两亲性嵌段共聚物PEO b PBA结构本身的吸水能力对天然橡胶和高吸水性树脂共混体系吸水性能及力学性能的影响。结果表明 ,PEO b PBA结构本身的吸水强弱对共混体系的吸水能力贡献很小 ,但却可以显著提高共混体系的吸水膨胀能力和力学性能 。
文摘This paper analyzes the valence electron structures of Titanium Aluminides according to the EET and expounds the natural reasons of the property or phenomenon occurring in their crystal structures, solubility and the range of Al content of ordered compound from the variation of their atomic states and bond structures.
文摘Polymer positive temperature coefficient(PTC) material comprising conductive particles, e.g. carbon black(CB), dispersed in polymer matrix is suitable for use as electrical devices such as circuit overcurrent protection device, self-regulation heaters, sensors, etc.. In this paper, the PTC effect of carbon black filled polyethylene and ethylene-propylene-diene terpolymer blends was studied. Effects of raw material ratio and type of carbon black were investigated. The distribution of CB in polymer matrix and the function of crystallites on PTC effect were discussed.
