----On the method and preparation of grinding zinc oxide powder, sulfur powder, accelerator BZ powder, accelerator EZ powder, antioxidant powder
The nitrile latex auxiliary material contains the following main raw material components: zinc oxide powder, sulfur powder, accelerator BZ powder, accelerator EZ powder, antioxidant powder, titanium dioxide, dispersant powder and appropriate amount of water. Mix the raw materials After that, stir and disperse, then circulate and grind until the particle size of the powder in the mixed solution is ≤5μm to obtain a mixed nitrile latex. The prepared nitrile latex has accurate raw material ratio, more convenient to use, low production cost and smooth nitrile gloves. High degree of accuracy, high pinhole qualification rate and stable quality. In actual production, due to the particularity of sulfur powder during wet grinding, it is recommended to grind the sulfur powder separately from other powders into a slurry. The sulfur powder is ground with a basket bead mill, while other zinc oxide powders and accelerator BZ powder , Accelerator EZ powder, antioxidant powder, titanium dioxide, dispersant powder are separately ground by bead mill.
This discussion discusses the application of basket bead mill grinding equipment in nitrile latex accessories to solve the problem that sulfur powder is easy to agglomerate in the grinding cavity of the bead mill during wet grinding. The reason: because the sulfur powder has hydrophobic characteristics, it is easy to separate the sulfur powder from water under the high-speed centrifugal action of the bead mill, and the temperature rises quickly and agglomerates, so that the water in the sulfur slurry is discharged and the sulfur powder remains In the grinding cavity of the bead mill, it affects the entry of the sulfur slurry pumped into the grinding cavity, causing the bead mill easy block. Although the speed and flow rate can be adjusted during actual control, it requires high personnel, poor operability, and cannot improve production efficiency. Therefore, the advantages of basket bead mill grinding equipment in nitrile latex accessories are quite obvious.
Basket bead mill grinding equipment is a special form of wet grinding equipment. The working method of the immersed grinding basket solves the problem of water being squeezed out, and the temperature during grinding will not be too high. It is the best choice for wet grinding of nitrile latex auxiliary material sulfur powder. At the same time, the ELE basket bead mill also solves the shortcomings that the traditional basket bead mill cannot use small beads to grind. The ELE basket bead mill can use small beads to grind at least 0.4-0.6mm, so the fineness can be compared with Nano rod pin bead mill is equivalent. In addition, due to the special structure of the basket bead mill, there is no leakage problem without sealing requirements, and the maintenance cost is lower. Finally, it is recommended to use ceramic materials in the selection of materials, firstly to reduce heavy metal pollution, and secondly for longer grinding life. The inner bladder of the grinding basket adopts silicon carbide ceramics, the basket body is jacketed with water cooling, and the rotor adopts zirconia ceramics.
The application of ELE basket bead mill grinding equipment in nitrile latex accessories has changed the low efficiency of the traditional production process, solved the problem of plugging in sulfur powder grinding, and also solved the poor fineness and low efficiency of traditional basket bead mills. The problem. It is now being used as the first choice and mandatory model by many users in the production of nitrile latex accessories.
