Core–shell [email protected]₂ ([email protected]) composite particles are prepared by a mechano–chemical method (MCM) to improve the dispersion of TiO₂ and reduce its dosage, and to achieve synergistic effects with the wollastonite mineral. The crystal structure, morphology, functional groups, and pigment properties of the as-prepared composite powders are determined. The [email protected] composite particles are formed by van der Waals force in addition to electrostatic attraction and chemical bonding. The anatase TiO₂ coating is anchored on the wollastonite surface by SiOTi and CaOTi bonds. The [email protected] powders possess excellent characteristics such as whiteness of 96.6%, hiding power of 17.97 g/m², and oil absorption of 22.72 g/100 g. The properties of the [email protected] composite are similar to those of TiO₂ and the former, which is much cheaper, can potentially substitute the latter as a white paint in many applications.

通过机械化学方法（MCM）制备核-壳[受电子邮件保护] ₂（[受电子邮件保护]）复合颗粒，以改善TiO ₂的分散性并减少其用量，并实现与硅灰石矿物的协同作用。测定所制备的复合粉末的晶体结构，形态，官能团和颜料性质。除静电吸引和化学键外，还通过范德华力形成[受电子邮件保护的]复合颗粒。锐钛矿型TiO ₂涂层通过Si O Ti和Ca O Ti键固定在硅灰石表面。受[电子邮件保护]的粉末具有出色的特性，例如白度为96.6％，遮盖力为17.97 g / m²，吸油量为22.72 g / 100 g。[受电子邮件保护的]复合材料的特性与TiO ₂相似，前者便宜得多，在许多应用中有可能将后者替代为白色涂料。