Two kinds of imidazoline nitrogen boric acid ester ( MBN1 and MBN2 ) were synthesized The structure of the product was characterized and the analysis of the hydrolytic stability, oil solubility, heat stability and tribological properties were also tested. The results showe that the thermal stability of MBN2 is better than MBN1. Its decomposition temperature reache 280℃ ,and hydrolytic stability is more than 30 days. Additives can be dissolved in base oil well. Optimal amount of additive is 2% in base oil, and the MBN2 can reduce the steel ball surface wear apparent.

CaSiO3:Eu2+ ,Dy3+ silicates storage luminescent materials were prepared by solgel method that use ethyl silicate,CaSiO3:Eu2+ ,Dy3  as the starting materials. The lattice structure and spectroscopic properties of storage luminescent materials and the influencing factors on luminescence properties were studied by Xray diffraction, fluorescence spectrum and other analytical tools. The results indicate that the calcination temperature have great influence on lattice structure and luminescence properties of sample. When the temperature is below 1 300 ℃, crystal lattice structure of sample is imperfect. The temperature higher than 1 400 ℃, the sample is prone to produce sintering phenomenon. Eu2+ as luminescent centers and its concentration have great influence on luminescence properties of samples. When the Eu2+ concentration was 0.005 mol, the luminous intensity of sample reached the maximum. In this case, the emission spectrum of the sample was an asymmetrical transmission that the peak located in 544 nm.

Melted oxidized paraffin wax grafted by acrylic acid was studied in this paper, it was discussed respectively about factors influencing grafted rate of melted oxidized paraffin wax, like reaction temperature, the dosage of ammonium persulphate, the dosage of acrylic acid and reaction time etc. It was ascertained that the proper conditions of orthogonal technology of melted oxidized paraffin wax grafted by acrylic acid, reaction temperature was 85 ℃, the dosage of ammonium persulphate 3.5%~4.5%, the dosage of acrylic acid 40%, reaction time 3 h.Finally, according to optimum proposal summarized by orthogonal experiment, modified oxidized paraffin wax was prepared with great characters of acid value, grafted rate, storage and centrifuge stability etc.

The influence of emulsification parameters including HLB value，dosage of emulsifiers, reaction temperature, stirring speed and emulsification time on particle size of oxidized wax emulsion was studied by laser particle analyzer. The results show that optimum emulsification conditions are as follows: dosage of complex emulsifiers 3.0%, the HLB value 12, reaction temperature 85 ℃,stirring speed 800 r/min, emulsification time 35 min. Under above conditions, the minimum particle size of the oxidized wax can reach 66.2 nm.