Polyacrylamide (PAM) is a linear polymer, a hard glassy solid at room temperature, with products such as glue, latex and white powder, translucent beads and flakes. It has good thermal stability. It can be dissolved in water in any proportion, and the aqueous solution is a uniform and transparent liquid.
The degradation methods of polyacrylamide are:
1. Water degradation: hydrolysis reaction (also known as hydration), is the most common and the simplest method of decomposition of polymers. The hydrolysis reaction is usually carried out under heating, and the hydrolysis begins when the temperature rises to a certain level.
2. Photodegradation: irradiate the polyacrylamide solution with ultraviolet light or visible light radiation, through photocatalytic action, prompting its molecular chain breakage and degradation into small molecule compounds.
3. Chemical degradation: the use of chemical reagents or catalysts for polyacrylamide degradation. Commonly used chemical degradation agents include oxidizing agents, reducing agents, acids and bases.
4. Microbial degradation: the use of specific microbial strains or enzyme catalysts for the degradation of polyacrylamide. By adjusting the culture conditions and microbial community, the degradation rate of polyacrylamide is accelerated.
5. Thermal degradation: Polyacrylamide is heated to a certain temperature to break its molecular chain and degrade into low molecular weight substances.
Through different degradation experiments, photodegradation is a relatively fast degradation method, because the energy generated by the absorption of ultraviolet light by polyacrylamide can lead to its decomposition, therefore, strong ultraviolet light can accelerate the breakage of polyacrylamide molecules, and then realize the rapid degradation of polyacrylamide. Chemical degradation and microbial degradation can also effectively degrade polyacrylamide, but there may be some limitations in practical application, such as the cost and stability of degradation agents, and specific requirements for microbial degradation, etc. However, microbial degradation is currently the most promising green technology. Thermal degradation methods can achieve polyacrylamide degradation, but they require higher temperatures and energy consumption, and are less suitable for large-scale applications.
Therefore, we will pay special attention to the quality and stability when choosing polyacrylamide, Hainan Yanghang Industrial Co., Ltd. factory is located in Henan was built in the early 1980s, is one of the earlier professional manufacturers engaged in water treatment materials. The company's annual output of 150,000 tons of water treatment agent products. Procurement of sewage treatment and wastewater treatment materials can contact us. Polyacrylamide series: anionic polyacrylamide (APAM), cationic polyacrylamide (CPAM), nonionic polyacrylamide (NPAM), oil recovery polyacrylamide, instant polyacrylamide, free polyacrylamide.