Methods The biocompatibility of BaFe12O19 particle was evaluated in vitro using Ames test, cell toxicity test, acute and subacute systemic toxicity test, hemolysis test, bleeding time and clotting time test and blood clotting function assay.

Research on syntheses of degradable self-emulsified polyurethane microspheres;

Studies on syntheses and morphology of novel polyurethane microsphere

By introducing EuFC into polyurethane microsphere during O/W latex forming process and then interfacial polymerization, polyurethane fluorescence microsphere containing EuFC were prepared.

Comparing with other cores of Vacuum Insulated Panel and analyzing the infection factors, I put forward that, Micro-cellular Polyurethane will be a good material for Vacuum Insulated Panel s core.

A series of sulfonic acid type hydroxyl-terminated organo-silicone/polyurethane micro-emulsions modified by N-β-aminoethyl-γ-aminopropyl trimethyldimethoxysilane(APAETMS)as capping agent were prepared by self-emulsification in water medium.

Ba-ferrite(BaFe_(12)O_(19)) containing glass-ceramics have been prepared from the glass in SiO_2-BaO-Fe_2O_3 through a novel 2 step crystallization procedure in order to manufacture the magnetic memory disk without deformation.

Selecting Fe_2O_3-BaO-SiO_2 glass system and employing stepwise heat-treatment method for crystallization,the microcrystalline glass containing BaFe_(12)O_(19) as magnetic crystalline phase was prepared for hard disk without deformation,and the microcrystalline glass was analysed and tested by means of XRD,SEM,and VSM to clear its property.