The dispersal can be improved obviously when nanometer SiO_2, TiO_2 and PEG were added in EG respectively.

• 纳米SiO_2及TiO_2分别和分散剂聚乙二醇(PEG)同时加入乙二醇(EG),然后用超声波分散,可以明显改善其分散性。