Lc test method for crystallite size of calcined petroleum coke by x - ray diffraction 用x -射线照绕射法测定煅烧石油焦中结晶尺寸
2.
It was concluded that the crystallinity can be improved by modification on the base of the crystallization bahavior of pvc . the high crystallinity pvc was crashed in the jet - mil and the size of crystal reduced . then the nanocrystalline pvc was prepared 研究了pvc的结晶行为，并提出通过改性处理提高pvc的结晶度，将高结晶度pvc在高速气流磨中粉碎，减小pvc的结晶尺寸，制取纳米晶pvc ，对纳米晶pvc的性能进行研究，同时对此进行理论探讨。
