Abstract
The Nano-Ti polymer was successfully fabricated by a high-energy ball milling method based on the principle of mechanochemistry. The influence of key parameters of ball-to-material ratio, ball-to-diameter ratio, and grinding solvent on the microstructure and dispersion capability of Nano-Ti polymer was investigated to attain an optimal preparation formula. Results show that the prepared Nano-Ti polymer has good dispersion stability. With increasing the ball-to-material ratio, the particle size and the sedimentation rate of Ti powder decrease. With decreasing the weight of the Φ20 mm grinding ball and increasing the weight of the Φ15 mm grinding ball, the sedimentation rate of the Nano-Ti polymer first increases and then decreases. The addition of grinding solvent is beneficial to improving the dispersion stability of Nano-Ti polymers. When the total ball weight is 2600 g and the weight ratio for the three types of balls is 16:7:3 (Φ20 mm: Φ15 mm: Φ5 mm), and the grinding aid is epoxy resin solvent containing acetone, the prepared Nano-Ti polymer has the best dispersion stability, the smallest sedimentation rate (6%) and particle size (28.1 nm), and the largest grafted amount (5.59 ×1019/m2) with epoxy resin.
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