2results about How to "Long-term cycle use" patented technology

This invention relates to the field of photocatalytic materials technology, specifically to a polybenzoxazine aerogel microsphere photocatalyst, its preparation method, and its application. The invention uses γ-aminopropylmethyldiethoxysilane, phenol, and paraformaldehyde as raw materials to synthesize benzoxazine with Si-O-C bonds and a planar π-conjugated structure. Then, the benzoxazine monomer undergoes ring-opening polymerization, followed by an in-situ emulsion template gelation method to form a polybenzoxazine aerogel microsphere catalyst with a wrinkled surface structure. The planar π-conjugated system and the interaction of tertiary amine groups in the polybenzoxazine aerogel microsphere catalyst promote the adsorption and activation of O2, as well as the gradual proton and electron transfer, thereby achieving highly efficient H2O2 photocatalytic synthesis. The preparation method of the polybenzoxazine aerogel microsphere catalyst of this invention is simple, the raw materials are readily available, and the cost is low.

The utility model relates to a double-layer asphalt melting device with side feeding, belongs to the technical field of asphalt melting equipment, and aims to solve the problems that an existing asphalt melting device is high in operation cost, large in occupied space after synergistic improvement and poor in economical efficiency, the double-layer asphalt melting device comprises a shell and two heat conduction oil pipe heating units, the shell is divided into an upper layer area and a lower layer area, the upper layer area and the lower layer area are communicated, the two heat conduction oil pipe heating units are arranged in the upper layer area and the lower layer area in the shell respectively, a plurality of feeding ports are machined in the front side wall of each area, and a sealing door is correspondingly arranged at each feeding port. The sealing door structure located on the upper layer completes opening and closing actions in a pneumatic upturning mode, and the sealing door structure located on the lower layer completes opening and closing actions in a manual mode. The device is mainly used for melting asphalt blocks in the asphalt production process.