| 摘要 |
<p>Disclosed is a conductive aqueous coating for outer protection of a hard rubber charging roll, the coating being made of raw materials in the following weight parts: 58-65 of an aqueous polyurethane resin emulsion, 8-25 of deionized water, 5.0-20.0 of a low molecular weight alcohol, 0.01 of a pH value conditioner, 0.4-2.0 of an aqueous aid, 1.0-2.0 of a charge conditioner, 1.0-2.0 of acetylene black, and 1.0-1.5 of a silane coupling agent. The coating has the advantages of good chemical stability, no pollution, stable electrical conductivity, and good controllability.</p> |
