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Silica gel tube carbon black dispersion basic knowledge sharing
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In fact, many of these people know that the dispersion of the filler is an important parameter in the silicone rubber products. We see on the one hand, the physical properties of the products have a direct correlation with the degree of dispersion, but we know that the dispersion degree is not known in the other hand. The common goal is to silicone processors, the process to obtain the most economic performance meets the requirements of customers. We believe that the dispersion of silica gel is one of the effective means to achieve this goal.
First, the requirements of silicone tube processing.
The design of a silicone rubber tube, whether it is a wear resistant product or a sealed product, must meet the following requirements:
1) consistency filler dispersion
2) control of large dispersion particles
3) processing of homogeneity
4) the most appropriate mixing time
Shenzhen Qi Yu silicone tube manufacturers to share: the above factors will directly affect the performance of the products. The presence of large dispersion particles will significantly reduce the wear performance.
Second, the control and influence of silica gel mixing process.
1 filler dispersion
The dispersion of the filler directly affects the performance of products. Poor dispersion will result in the decrease of elastic modulus of some products and shorten the life span. And excessive dispersion can also cause problems such as intensity loss.
2 large dispersion of particles
Diameter less than 25 m particles mainly affect the products of strength and elasticity; of particles and products of diameter of 25 mu m~35 m fatigue performance in direct contact; and larger particles may be formed directly products surface or internal defects, or become subject to the cracks in the products.
3 processing uniformity
Improve the uniformity of each hand, can reduce the cost of adjustment in the process of processing, the stability of product quality. For example, in the extrusion process if mixed mixing homogeneity of the poor, will lead to unstable dimension, surface defect, to enlarge the process difficulty.
This paper is from Shenzhen,, id=457?
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