What are the reasons for the deterioration of water reducing agent? Do you know?

Any item has a shelf life, and the same is true for water-reducing agents. If the water-reducing agent is used after deterioration, there will be many hidden dangers, and the water-reducing agent may deteriorate during the shelf life. So what are the reasons for the deterioration of the water-reducing agent?

　1. The water-reducing agent has deteriorated. Phenomenons include light-colored fluffy or cotton-like bacterial plaques on the liquid surface, discrete islands of floating objects, strings of bubbles emerging, and even bacterial plaques covering the entire liquid surface, appearing as dark green, brown, and black plaques. Suspended solids, accompanied by the production of putrid sour smelling gas.

2. The deterioration of water-reducing agent is generally caused by the compound sodium gluconate. Microorganisms can grow mold on the surface of a certain polymer under appropriate temperature and humidity conditions. The polymer system contains plasticizers and grease compounds, especially compounds containing fatty acid structures, which are easily infected by mold.

3. In a hot and humid environment, mold secretions allow bacteria to parasitize and multiply, accelerating biodegradation. In industrial production, Aspergillus niger is commonly used to ferment sodium gluconate. After the fermentation, Aspergillus niger residue will be produced. If the production control is not strict, there will be residues of glucose and Aspergillus niger, which provide nutrients for the reproduction of microorganisms.

4. When various breeding conditions are superimposed on each other, mold will explode and the water-reducing agent will deteriorate. In addition, it is related to the storage environment. High temperature will intensify the movement of macromolecular chains, causing chain decomposition, irregular fracture and thermal decomposition, etc., resulting in accelerated degradation of polymers. The higher the temperature, the greater the activity of microorganisms, which reduces the The aqueous solution also causes mildew faster. </p