Research On Slice Modified By Nano-TiO₂

In this research, the nanometer TiO₂ solution was dispersed by the ultrasonic dispersion method, the dispersible effect of the TiO₂ pellet contributed to the absorbency. Pouring the solution into veneer by filters with modern analysis technology analysis of Scanning electron microscope (SEM), Energy dispersive analysis of X-Ray (EDAX) and synthesis thermal analysis Instrument and so on, following parts were analyzed, which are relationship between time, absorbency of the TiO₂ solution , distributed situation of the nanometer TiO₂ pellet in the slice and the penetration effect and bonding mechanism. Studied the antibacterial mechanism through the antibacterial experiment . Result and analysis tests from all above experiments, following conclusion may be drawed :1st, with the orthogonal experiment, the sequence of affecting factors from strong to weak was: ultrasonic power > time > temperature. ultrasonic power influenced remarkably, the time influence was remarkable, the temperature influence was not remarkable. The technology condition that enabled nanometer TiO₂ to achieve the best disperser effect was: Power 300W, time 10min, Temperature 20 ℃.2nd, the relationship between the absorbency and time was: Lays aside in 15 min, the nanometer TiO₂ particle dispersion has extremely little reunited. Laying aside 40min, the absorbency reduced 0.012, the part of nanometer TiO₂ particle started to reunite. Laying aside 60min, the drop scope of the absorbency increase, some nanometer pellet has the certain reunion. using TiO₂ solution, its laying aside time had better not surpass 40min.3rd, Through the L₉3⁴ orthogonal experiment, the result indicated that the sequence of affecting factors from strong to weak was: the filter times > the veneer section > thickness, the filter times influenced remarkably, the veneer section influence was remarkable, thickness influence was not remarkable. the best craft condition was: filters 5 times, the radial section veneer, thickness 0.3mm.4th, the analysis results of Scanning electron microscope (SEM) showed that: Nanometer TiO₂ pellet in veneer surface distributed evenly. EDAX analysis indicated that: The nanometer TiO₂ material has impregnated in veneer, the penetration was good. The analysis of the differential scanning calorimetry curve indicated that: Between the nanometer TiO₂ pellet and veneer has the possibility of the physical or chemical joint. The veneer flame-resistant was...