电气石水性浆料的制备及其性能研究

Study on Preparation of Tourmaline Aqueous Slurry and Its Performance

利用高速研磨改性的方法制备电气石水性浆料。探讨分散剂的种类、用量以及pH调节剂的种类对浆料稳定性的影响。用粒度分布、zeta电位、SEM、FT‐IR和流变性测试表征样品。研究结果表明：采用0．4％的PM A‐3000作为浆料的分散剂和A M P‐95作为p H调节剂时，可以制备出稳定的电气石水性浆料。粒度分布曲线表明，电气石水性浆料的平均粒度为3．536μm ；FT‐IR结果表明，分散剂与电气石颗粒表面发生了化学吸附；流变曲线表明，浆料具有较高的剪切变稀触变性；探讨了浆料pH值对其Zeta电位的影响。

Tourmaline aqueous slurry was prepared by using the high‐speed grinding modification method .The influence of types of dispersant ,dosage and types of pH regulator on the stability of the slurry was discussed .The sample was characterized by particle size distribution ,zeta potential test ,SEM , FT‐IR to rheological property test .The results show that ：when the 0 .4% PMA‐3000 is used as slurry dispersant and AMP‐95 is used as a pH regulator ,the stable tourmaline aqueous slurry can be prepared . Particle size distribution curve show s ：average particle size of tourmaline aqueous slurry is 3 .536μm ;FT‐IR .T he result show s that ：chemisorption happens on the surface of dispersant and tourmaline particles . The rheological curve shows that slurry has high shear thinning thixotrop .The influence of pH value of slurry on the Zeta potential was discussed .