The papermaking industry relies on a suite of specialized chemicals to optimize production processes and enhance paper quality. Among these, Polyacrylamide (PAM) plays a critical role, acting as a versatile additive that improves retention, drainage, and the dry strength of paper. For procurement managers in the paper sector, understanding the benefits and sourcing reliable PAM is key to efficient operations. NINGBO INNO PHARMCHEM CO.,LTD., as a dedicated manufacturer and supplier of high-quality PAM, offers solutions that meet the stringent demands of modern papermaking.

PAM as a Retention and Drainage Aid

In the papermaking process, fine fibers, fillers (like clay or calcium carbonate), and other additives are suspended in water to form a slurry. Efficiently retaining these components on the forming fabric and quickly draining excess water are crucial for paper formation and machine speed. High molecular weight PAM, often anionic or non-ionic, acts as an effective retention and drainage aid.

  • Mechanism: PAM molecules adsorb onto the surfaces of fines, fillers, and fibers. Their long chains bridge these particles, forming larger agglomerates. These larger particles are retained more effectively on the wire and allow water to drain away more rapidly.
  • Benefits: Improved retention leads to higher yields of valuable materials, reduced fiber loss in the white water, and a cleaner process effluent. Enhanced drainage allows for faster machine speeds, increased production output, and reduced energy consumption in drying sections.

When seeking to purchase PAM for papermaking, consider that different grades of PAM are optimized for various types of furnish and machine conditions. Consulting with a knowledgeable supplier can help identify the most suitable product.

PAM as a Dry Strength Agent

The dry strength of paper, referring to its resistance to tearing, bursting, and tensile stress, is a critical quality parameter. PAM can significantly enhance these properties when added to the papermaking furnish. The polymer’s ability to form hydrogen bonds and physical entanglements between cellulose fibers improves the inter-fiber bonding, thereby increasing the paper's overall strength.

This application is particularly valuable for producing specialty papers or improving the performance of standard paper grades. The efficiency of PAM as a dry strength agent depends on its molecular weight and charge characteristics, as well as the furnish composition.

Other Applications in Papermaking:

  • Wastewater Treatment: PAM is also widely used in treating the effluent from paper mills, helping to remove suspended solids and reduce turbidity.
  • Sludge Dewatering: It aids in the dewatering of sludge generated from the paper manufacturing process.

Why Source PAM from NINGBO INNO PHARMCHEM CO.,LTD.?

As a leading manufacturer and supplier of Polyacrylamide in China, NINGBO INNO PHARMCHEM CO.,LTD. offers a diverse portfolio of PAM products specifically designed for the papermaking industry. We understand the critical need for consistency, high performance, and reliable supply. Our products are manufactured to meet rigorous quality standards, ensuring optimal retention, drainage, and strength enhancement for your paper production. We invite paper manufacturers to contact us for product information, technical support, and competitive quotes for their PAM requirements. Partner with us to elevate your papermaking efficiency and product quality.