What factors will affect the measurement accuracy of Mooney Vicometer manufacturers？
Mooney Vicometer manufacturers believe that the Mooney viscosity measured by Mooney viscometer is an intuitive reflection of the molecular weight and molecular weight distribution of rubber. It reflects the physical properties and processing properties of rubber to a certain extent, and is an important part in the production of synthetic rubber. Control indicators. Mooney viscometer manufacturers said that in large-scale industrial production, glues with different Mooney viscosities are often blended by adjusting the Mooney viscosity of the polymer glue to ensure the Mooney viscosity of the final product.
In the Mooney viscometer test, a certain amount of anti-aging agent is often added to the glue to prevent the film from aging during the drying process. Mooney viscometer manufacturers determine the antioxidant and dosage used in the test by studying the degree of emulsification of antioxidants, the influence of different types of antioxidants and the amount of antioxidants on the Mooney viscosity test, thereby improving the accuracy of the Mooney viscosity test and optimizing Production process control to ensure product quality.
The Mooney viscometer manufacturers found that for the same sample, the Mooney viscosity value M2 measured by the antioxidant prepared at 35°C was relatively stable, while the Mooney viscosity value M1 measured by the antioxidant prepared at 20°C was different. Big. Why is this so? The Mooney viscometer manufacturers explained that at 20°C, the antioxidant has high viscosity, high surface tension, and poor compatibility with potassium disproportionate rosinate soap, making it difficult to form a stable emulsification system. When a poorly emulsified antioxidant is added to the nitrile mucilage, the compatibility of the antioxidant and mucilage is poor, and it cannot be uniformly dispersed in the mucilage, resulting in the aging degradation of the film during drying, the decrease in molecular weight, and the decrease in Mooney viscosity. .
Mooney viscometer manufacturers found that antioxidants prepared at 35°C can form a stable emulsification system, have good compatibility with glue, and can play the role of antioxidants to ensure that the film is not oxidized during the drying process. degradation. Viscosity test results are stable.