The change of modified CaCO3 in wet-put, sediment volume has resulted in the increase of contact angle of the ultrafine CaCO3 and water.

• 讨论了改性前后超细碳酸钙的润湿性、沉降体积等表面性质的变化。结果表明:改性后的超细碳酸钙与水的接触角增大;