| 摘要 |
The invention discloses a hydrophobic proppant and a preparation method thereof. The aggregate particles of the hydrophobic proppant are coated with a coating resin which comprises a hydrophobic resin and nano-particles which are uniformly distributed in the coating resin and constitute 5-60% of the coating resin by weight. The contact angle labeled as ¸ between water and the hydrophobic proppant in which nano-particles are added is in the range of 120°‰¤¸‰¤180°. The proppant of the present invention is prepared by adding the nano-particles in the existing resin in which low-surface-energy substances with hydrophobic groups are added, and a rough surface with a micro-nano structure is constructed on the outer surface of the prepared resin film, so that the contact angle ¸ at the solid-liquid contact surface on the outer surface of the coating resin of the proppant is more than 120°, therefore, the hydrophobicity of the proppant is greatly enhanced, the water resistance of the proppant is greatly enhanced, and the applicable working conditions become wider. |
