Performance changes of polyacrylamide (PAM) at high temperatures

Under high temperature conditions, polyacrylamide (PAM) exhibits unique property changes. Through scientific research, we explore the physical and chemical changes of PAM in high-temperature environments to help readers gain a deeper understanding of its applicability and potential.

Physical and chemical stability of PAM

High temperature has a significant impact on the physical and chemical stability of PAM. Research shows that when the temperature rises above 150°C, the molecular chains of PAM will break, which leads to a significant decrease in its viscosity. At the same time, high molecular weight PAM exhibits better stability and durability at high temperatures.

Effect of high temperature on solubility and viscosity of PAM

The study pointed out that as the temperature increases, the solubility and viscosity of PAM will change. In the range of 80°C to 120°C, the dissolution rate of PAM is accelerated, but the viscosity decreases. This characteristic gives PAM unique application advantages in high temperature environments.

Practical applications of PAM in different industries

The properties of PAM at high temperatures are widely used in oil mining, papermaking, sewage treatment and other industries. For example, in oilfield wastewater treatment, PAM's high-temperature stability enables it to effectively flocculate and precipitate impurities, improving the quality of treated water. In addition, PAM also shows excellent performance in the paper industry, improving the cohesion effect of pulp.

Data support and case analysis

Through multiple experimental data, we can see that high molecular weight PAM shows better performance in high temperature environments. For example, at 100°C, the viscosity of PAM only drops by about 20%, while the viscosity of ordinary polymers drops by far more than 50% under the same conditions. These data provide a solid foundation for the practical application of PAM.

Conclusion and outlook

Overall, polyacrylamide (PAM) exhibits unique physical and chemical stability in high-temperature environments, which provides broad prospects for its application in multiple industries. With its high temperature stability and versatility, PAM has great potential in industrial and environmental fields.