Polyacrylamide (PAM), a high performance water soluble synthetic polymer, has become an indispensable chemical additive in the modern papermaking industry. Predominantly dosed in the wet end of paper machines, it serves as an efficient retention and drainage aid. It adsorbs and aggregates fine cellulose fibers, mineral fillers and tiny colloidal particles, greatly reducing material loss into white water. Meanwhile, it speeds up pulp dewatering on the forming wire, effectively lifting paper machine running speed, cutting steam and power consumption, and improving overall production capacity.
Selective types of polyacrylamide also act as dry strength agents. They strengthen fiber to fiber bonding, enhancing finished paper’s tensile strength, stiffness and surface uniformity without compromising other paper properties. Apart from paper forming processes, PAM works as a reliable flocculant for white water recycling and papermaking wastewater treatment. It flocculates suspended solids for solid liquid separation, enabling higher water reuse rates and lowering pollutant emissions.
In practical production, proper selection of ionic type, molecular weight and dosage of PAM is essential to avoid negative impacts such as foam formation or uneven paper sheets. As a result, polyacrylamide helps paper enterprises reduce raw material waste, stabilize product quality and realize energy saving and environmentally friendly production.
Application Scenarios
GPAM is a highly efficient water-soluble polymer papermaking additive, usually referring to glyoxal-modified polyacrylamide.
The product can form a good bonding network with fibers and enhance the bonding force between fibers, thereby effectively improving paper dry strength, temporary wet strength and the physical properties of finished paper.
This …
Application Scenarios
DADMAC (Diallyldimethylammonium chloride) is a high purity, polymer grade, quaternary ammonium salt and high charge density cationic monomer. Its appearance is a colorless and transparent liquid without irritating smell.
DADMAC can be dissolved in water very easily. There is an alkenyl double bond in the molecular structure and …
Application Scenarios
Anionic Trash Catcher is a highly efficient cationic wet-end control additive mainly used to capture anionic interfering substances introduced into the papermaking system by waste paper, broke, fillers, white-water circulation and chemical additives.
The product can quickly neutralize excessive negative charges in the system, reduce the consumption of …
Application Scenarios
In kraft linerboard, cultural paper and tissue paper production, the bonding ability between fibers can be enhanced through adsorption on the fiber surface and surface treatment. These improvements effectively enhance the physical properties of paper, including folding endurance, bursting strength, interlayer bonding strength and surface strength, while reducing …
Application Scenarios
In the white-water recovery section of papermaking systems, the addition of flocculants can effectively reduce white-water concentration, recover fine fibers, reduce the content of suspended solids (SS) in white water, improve white-water reuse rate, and reduce water consumption per ton of paper.
In papermaking wastewater treatment plants, different …
Application Scenarios
Single-component retention and drainage systems: suitable for small and medium-sized paper mills with relatively low machine speeds, such as those producing paperboard, core paper and cultural paper. By adjusting retention-aid performance, the requirements of different paper machines during papermaking can be met.
Dual-component or multi-component retention and drainage
