2.1 Materials
The Polypropylene T30S (Homopolymer, the density is 0.905
g·cm−3, the MFI index is 2.6
g·10min-1, and the melting point is 170 °C) was
purchased from China Petroleum and Chemical Corporation Limited. SCG was
from a local coffee shop. Petroleum ether having a boiling range of
60-90 ℃ with analytical pure was purchased from Hangzhou Gaojing Fine
Chemical Co., LTD.