納米材料英文介紹學(xué)習(xí)教案

1、會計學(xué)1納米材料納米材料(n m ci lio)英文介紹英文介紹第一頁，共10頁。第1頁/共10頁第二頁，共10頁。thermosetting or elastic) that have been reinforced with small quantities(less than 5% by weight) of nano-sized particles having high aspect ratios (L/h300)nNanocomposites are not necessarily superior to conventional composites第2頁/共10頁第三頁，共10

2、頁。-Lower CTE, higher Tg & heat distortion temperatureFlame Retardant Properties - Lower heat release rate & lower mass loss rateGas/Moisture Barrier Characteristics -Lower permeability and diffusivity第3頁/共10頁第四頁，共10頁。 and filler components are extremely short -Comparable dimensions of polyme

3、r coils(40nm in diameter) and nanoparticles molecular interaction between the polymer and the nanoparticles unusual material properties of nanocomposites.第4頁/共10頁第五頁，共10頁。 Better damage tolerance Physical-related properties Controlled thermal expansion and conductivity Directional electrical and mag

4、netic properties Better elevated temperature behaviour Chemical-related properties Enhanced corrosion and degradation resistance第5頁/共10頁第六頁，共10頁。第6頁/共10頁第七頁，共10頁。第7頁/共10頁第八頁，共10頁。 Thermal insulating coatings: -a layer of nanoporous(納米(n m)多孔) silica（硅） on PI （聚酰亞胺）thin film coated by a 70nm thick Al films Flammability reduction:-