What affects the tensile strength of industrial rubber sheet
Since the last century, we have started the production of industrial rubber sheet , and its technological level has also been improved step by step. In our modern industrial life, the demand for this product from all walks of life is also increasing, and it appears that there is a shortage of supply. Everyone knows that this material has a certain degree of stretch, so what is the main factor affecting this function?
The tensile strength of this material is the limit to characterize the material against tensile load damage. Many factors affect the tensile strength of industrial rubber. The first point to think about from the formula planning aspect is mainly the type of raw rubber, the vulcanization system, and the type and amount of filler. Formulas with high tensile strength should use crystalline rubber such as natural rubber, neoprene, or chlorosulfonated polyethylene. The rubber content is usually about 60%. The active filler should be selected and dispersed evenly during mixing. When using active fillers to make up, the amount should be appropriate. Secondly, the tensile strength of the rubber sheet is related to the layout of the rubber. When the amount is small, the secondary valence of the intermolecular interaction is smaller. Therefore, when the external force is greater than the intermolecular effect, intermolecular sliding will occur and the data will be damaged. Conversely, the molecular weight is large, the intermolecular force is increased, the cohesion of the rubber is improved, and the chain segment is not easy to slide when stretched, so the damage to the data is small. All other factors affecting intermolecular forces have an impact on tensile strength. For example, NR / CR / CSM has crystalline substitution groups on the main chain of the rubber, the valence between molecules has greatly improved, and the tensile strength has also improved. That is one of the main reasons why these rubbers have good self-reinforcing properties. Generally, as the crystallinity improves, the tensile strength increases. Post-tensile strength is also related to temperature. The tensile strength at high temperature is much lower than that at room temperature. The tensile strength is related to the cross-link density. Following the addition of the cross-link density, the tensile strength is added. After a large value is added, the cross-link density is continuously added, and the tensile strength will be greatly reduced.
After reading the introduction above, I wonder if it will be helpful to you? Our company is a professional manufacturer of industrial rubber sheet . Our products are widely used in all aspects of the construction of the motherland. We also hope that we can help you and your business.