3 results about "Coated paper" patented technology

The invention provides a preparation method of a paper-graphite-CoPd thin film electrode. The preparation method comprises the following steps: (1) uniformly coating ordinary paper with a mixture of graphite and clay; (2) retaining the paper coated with the graphite for 20-30 min under the voltage of 1.0V, activating the coating graphite, and then performing electro-deposition on Co for 120-150 min under the voltage of -0.8V to obtain a paper-graphite-Co thin film electrode; and (3) enabling the paper-graphite-Co thin film electrode to stand in 0.8 mmol/L<-1> of PbC12 solution for 1-3 min to obtain the paper-graphite-CoPd thin film electrode, namely a graphite coated paper loading CoPd catalyst. According to the method, with pencil coated paper, Co is subjected to electro-deposition on the surface of conducting paper coated with graphite, and then partial Co is replaced with Pd to prepare the graphite coated paper loading CoPd catalyst, so that the electroreduction performance of hydrogen peroxide is improved. The preparation method overcomes the defects of high current collector cost, hydrogen peroxide decomposition and the like, and solves the problem that hydrogen peroxide based full cells are bad in cathode activity.

A dry erase board is provided wherein the erasable surface is vacuum-formed and heat sealed to a coated paper panel, forming a blister pack with a semi-rigid body. To this end, a dry erase board that is integral with its packaging is provided.

The invention discloses a preparation method of a hydrophobic polystyrene coated paper substrate. The preparation method comprises the following steps: completely dissolving a binder like a starch into deionized water at the normal temperature at the normal pressure, then adding a polystyrene particle, conducting ultrasonic dispersion to prepare an evenly dispersed coating material solution; thenevenly loading a polystyrene material on the surface of the paper substrate through a vacuum filtration coating method; finally fusing the polystyrene loaded on the surface of the paper substrate by means of high temperature baking, and effectively embedding the polystyrene in the surface of the paper substrate. According to the method provided by the invention, the hydrophobic polystyrene coatedpaper substrate with the surface tension of the water more than 95 degrees and the surface energy more than 45 mN/m is prepared, and the provided method has the characteristics of simple and convenient operation and good repeatability, the hydrophobic polystyrene coated paper substrate does not contain organic solvents, and the prepared paper substrate is good in flexibility and strong in hydrophobic property.