Rubber powder materials, shear grinders, shear crushers, shear shredders

Release time:

2024-11-27 08:48

Source:

Rubber products have strict requirements for fillers. Generally speaking, the finer the reinforcing filler particles, the larger the specific surface area and the greater the contact area with rubber, resulting in better reinforcement effects. The finer the non-reinforcing filler particles, the better the mixing effect after being added to rubber.

In terms of particle shape and crystal form, spherical filler particles are preferable. Flake or needle-shaped fillers tend to align directionally during the stretching of vulcanized rubber, leading to increased permanent deformation and reduced tear resistance. Among reinforcing fillers, carbon black and silica are amorphous, while isotropic crystalline fillers like calcium carbonate are not suitable as reinforcing fillers in rubber products that require good wear and tear resistance. However, treatment with a vertical grinder can improve their particle shape and crystal form, enhancing their applicability in rubber.

Regarding surface properties, when powder fillers are mixed into rubber, their particles are surrounded by rubber molecules, and the degree to which the particle surface is wetted by rubber significantly affects the reinforcement efficiency. Particles that are not easily wetted do not disperse well in rubber, tend to clump together, and reduce their reinforcement efficiency. For example, calcium carbonate, which has very low reinforcement efficiency, can have its surface tension reduced and wettability increased by adding fatty acids, thereby improving its reinforcement effect. A vertical grinder can improve the surface properties of fillers by adjusting grinding parameters, enhancing their reinforcement efficiency in rubber. When selecting fillers, it is important to consider the physical and mechanical properties of the rubber products, processing technology, and cost requirements. For red reclaimed rubber inner tubes, inexpensive lightweight calcium carbonate can be chosen as a filler, which not only improves the performance of reclaimed rubber products but also reduces production costs. For white, light-colored, and colored rubber products, transparent silica and basic magnesium carbonate can be selected as fillers to meet their color and transparency requirements.

The vertical grinder employs a unique fine grinding method when processing rubber powder materials. It utilizes a multi-stage alloy stirring plate that rotates to generatevortices.In this process, the material is drawn intovortices.the vortex, and as the stirring plate rotates at high speed, the material is subjected to strong centrifugal forces. This centrifugal force causes the material to continuously move within the grinding chamber, colliding and interacting with the grinding medium. At the same time, the rotation of the stirring plate also generates shear and compressive forces, which act on the material particles, gradually breaking and refining them. It is like countless small crushers working simultaneously, with one ball equivalent to a small crusher, capable of grinding the material to a particle size range of 1 micron or even below 100 nanometers. This fine grinding process can effectively improve the quality and performance of rubber powder materials, making them more suitable for the production requirements of rubber products.

* Note: Please be sure to fill in the information accurately and keep the communication unblocked. We will get in touch with you as soon as possible.

Submit Message

Previous Page

Quartz powder high-speed grinder, high-speed crusher, high-speed pulverizer

Rubber powder materials, shear grinders, shear crushers, shear shredders

Next Page

Related News