采用环氧氯丙烷法制备了新型生物基没食子环氧树脂、环氧基笼形倍半硅氧烷(E-POSS)、经甲基丙烯酸修饰的E-POSS(AE-POSS);利用浇注工艺制得新型杂化纳米生物基环氧树脂复合材料。考察了E-POSS,AE-POSS用量对新型杂化纳米环氧树脂复合材...采用环氧氯丙烷法制备了新型生物基没食子环氧树脂、环氧基笼形倍半硅氧烷(E-POSS)、经甲基丙烯酸修饰的E-POSS(AE-POSS);利用浇注工艺制得新型杂化纳米生物基环氧树脂复合材料。考察了E-POSS,AE-POSS用量对新型杂化纳米环氧树脂复合材料的增韧效果、热稳定性、相容性的影响。结果表明:添加E-POSS,AE-POSS可提高复合材料的冲击强度及热稳定性;w(AE-POSS)为18%时,复合材料冲击强度较纯没食子环氧树脂提高了3.46 k J/m^2;w(E-POSS)为18%时,复合材料初始热降解温度较纯没食子环氧树脂提高了46.4℃。展开更多
Through analyzing basic conditions of the "five mining areas" in the Laoqing Mountain of the Dianchi Lake Basin, in Kunming City, South China, the ecological restoration design of "integrating engineeri...Through analyzing basic conditions of the "five mining areas" in the Laoqing Mountain of the Dianchi Lake Basin, in Kunming City, South China, the ecological restoration design of "integrating engineering protection and biological restoration, building the landscape ecological security pattern of the Laoqing Mountain" was proposed. Considering the different ecological functional areas, varying engineering measures, greening patterns, and irrigation means were selected for the ecological restoration, including site management, vegetation restoration, management and utilization etc.. These ecological restoration measures will produce favorable ecological benefits, and also take landscape effect and sustainable development into consideration, which will contribute to the ecological restoration of the "five mining areas", and provide a scientific and feasible reference for the ecological restoration in China.展开更多
文摘采用环氧氯丙烷法制备了新型生物基没食子环氧树脂、环氧基笼形倍半硅氧烷(E-POSS)、经甲基丙烯酸修饰的E-POSS(AE-POSS);利用浇注工艺制得新型杂化纳米生物基环氧树脂复合材料。考察了E-POSS,AE-POSS用量对新型杂化纳米环氧树脂复合材料的增韧效果、热稳定性、相容性的影响。结果表明:添加E-POSS,AE-POSS可提高复合材料的冲击强度及热稳定性;w(AE-POSS)为18%时,复合材料冲击强度较纯没食子环氧树脂提高了3.46 k J/m^2;w(E-POSS)为18%时,复合材料初始热降解温度较纯没食子环氧树脂提高了46.4℃。
文摘Through analyzing basic conditions of the "five mining areas" in the Laoqing Mountain of the Dianchi Lake Basin, in Kunming City, South China, the ecological restoration design of "integrating engineering protection and biological restoration, building the landscape ecological security pattern of the Laoqing Mountain" was proposed. Considering the different ecological functional areas, varying engineering measures, greening patterns, and irrigation means were selected for the ecological restoration, including site management, vegetation restoration, management and utilization etc.. These ecological restoration measures will produce favorable ecological benefits, and also take landscape effect and sustainable development into consideration, which will contribute to the ecological restoration of the "five mining areas", and provide a scientific and feasible reference for the ecological restoration in China.
