What is Polydadmac

Polydadmac is a kind of colorless to light yellow liquid,which the viscosity of Sewage treatment in polydadmac is different with the activate content changing.The sewage treatment in polydadmac solution has the following characteristics:

1.Physical characteristics: Appearance: Generally, it is a colorless to light yellow transparent liquid with a slight consistency. Solubility: Easily soluble in water, ethanol, isobutanol, insoluble in esters, ketones and other carbohydrates. Density: For example, the density of a 40% content solution is about 0.719g/ml (at 20°C).

2. Chemical characteristics: Stability: Very stable at room temperature, does not hydrolyze and is not flammable. Reactivity: The molecular structure contains alkenyl double bonds and can form linear homopolymers and various copolymers through various polymerization reactions. Sewage treatment by polydadmac can react with many substances. For example, the compounds prepared under various pH conditions have excellent salt and alkali resistance; sewage treatment in polydadmac can homopolymerize or copolymerize with other vinyl monomers, introducing quaternary ammonium groups to the polymer, thus having extremely strong polarity and affinity for anionic substances.

3. Low toxicity: Sewage treatment by polydadmac has low irritation to the skin and is low toxic.

4. Charge characteristics: It belongs to a polymeric, high charge density cationic monomer. Its aqueous solution and hygroscopic solid powder are conductive. The conduction mechanism is ionic migration conduction.

As a polydadmac manufacturer in China, our company has a rich experiment about polydadmac in oily wastewater treatment, such as: use polydadmac in oily wastewater treatment in pre-dehydration. 

The solid content of poly(dimethyldiallylammonium chloride) (PDADMAC), which refers to the mass proportion of the effective polymer component in the product (usually 20% - 50%, and can be over 90% for solid products), is a key indicator that affects its performance, ease of use, and application effect. The specific impacts are as follows: 

1. Viscosity and Fluidity The higher the solid content, the smaller the distance between molecules, and the stronger the entanglement and interaction of polymer chains, resulting in a higher viscosity of the system. For example: - Products with a low solid content (20% - 30%) are usually viscous liquids with good fluidity, which are easy to pump and dilute. - Products with a high solid content (40% - 50%) have a significantly increased viscosity and may be in a paste - like state. Higher shear force is required for uniform mixing during stirring. - Solid powders (with a solid content > 90%) have no fluidity themselves and need to be dissolved in water before use. During the dissolution process, the stirring speed needs to be controlled to prevent caking. 

2. Stability In liquid products, an excessively high solid content may cause polymer chains to aggregate with each other. During long - term storage, problems such as delamination, precipitation, or gelation are likely to occur (especially in low - temperature environments). Products with a low solid content, due to their high water content, are more susceptible to microbial contamination (preservatives need to be added), but the system has better stability and is less likely to delaminate.