高压均质技术对低熔点玻璃粉的细化及烧结性能的影响

利用羧甲基纤维素(CMC)作为低熔点玻璃粉水分散液的防沉剂,用高压均质机对玻璃粉进行细化处理,使其粒度减小.探讨了不同高压均质时间对玻璃粉的粒度大小和烧结性能的影响;结果表明:在相同的压强下(50 MPa),高压均质时间越长则玻璃粉粒度越小、粒度分布范围越窄,其软化温度和烧结温度也越低.因此可以利用高压均质技术来降低玻璃粉的粒度,从而降低玻璃粉的软化温度和烧结温度.

Effect of Refinement Process Condition and Sintering Property on the Low Melting Point Glass Powder by High-pressure Homogenization Technology

Using carboxymethyl cellulose(CMC) as an anti-settling agent of low melting point glass powder aqueous dispersion,the high-pressure homogenizer can refine glass powder particle to reduce their size.Different high-pressure homogenized time affected on glass powder’s particle size and the sintering property.Under the same pressure(50 MPa) a longer high-homogeneous time gets smaller particle size and narrows particle size distribution.And the softening temperature and sintering temperature are also lower.The results show that the high-pressure homogenizer techniques can be used to reduce the particle size of the glass powder,so that the softening temperature and sintering temperature will be lowered.