Three factors affecting Mooney Vicometer measurement
Mooney Vicometer is an instrument for measuring Mooney viscosity. During the production and storage of reclaimed rubber, the mastication process and parking time have a great influence on the true Mooney value of the reclaimed rubber itself: Mooney Vicometer manufacturers tell you that the more times the pass is generally thin. , The longer the mastication time, the lower the molecular weight of the reclaimed rubber, and the lower the Mooney value; Mooney Vicometer tells you that during the storage of the reclaimed rubber, due to molecular movement, the free radicals generated during the regeneration of the reclaimed rubber will gradually crosslink again. Gradually increasing, the Mooney viscosity of the reclaimed rubber will increase. Therefore, the Mooney viscosity of the reclaimed rubber in the same batch, the new product, and the product that has been parked for a long time is different.
Factors affecting the Mooney viscosity of reclaimed tire rubber:
1. Raw materials and formula: The reclaimed tire rubber is mainly composed of three main raw materials: waste tire rubber powder, softener and activator. The quality stability of the raw material waste tire rubber powder is the main key. The manufacturer of Mooney Vicometer tells you that stabilizing the raw material source and quality control of rubber powder are the primary factors to ensure the stability of the Mooney viscosity of the regenerated rubber; the quality consistency control of the softener raw materials is the second important factor to ensure the stability of the Mooney viscosity of the regenerated rubber ; The quality consistency of the activator is a hurdle that must be strictly controlled to ensure that the reclaimed rubber production enterprises purchase goods.
2. Production process: The Mooney Vicometer manufacturer tells you that under the premise of ensuring that the performance of the above raw materials are stable, the production process and processing control problems are also one of the reasons for the instability of the Mooney viscosity. The manufacturer of Mooney Vicometer tells you that the three elements of temperature, pressure and time are the decisive factors affecting the quality of reclaimed rubber during the dynamic desulfurization process, and the three elements must be strictly controlled.
3. Park storage: Mooney Vicometer manufacturer tells you that despite the above two problems, the production control is better, and it can produce tire reclaimed rubber with Mooney viscosity within a certain range, but some tire reclaimed rubber will increase in Mooney viscosity after storage for a period of time. Larger or even higher than the standard, the main reason is that the reclaimed rubber lacks the necessary inhibitors for free radical termination during storage, which leads to polymerization during storage and the Mooney viscosity increases.