At NINGBO INNO PHARMCHEM CO.,LTD., we recognize that in the complex world of papermaking, individual chemicals often work best as part of a well-orchestrated system. Cationic Polyacrylamide (CPAM) is a highly effective additive, but its performance can be further amplified when used synergistically with other papermaking chemicals. This article explores these powerful combinations and their benefits.

One of the most common and effective combinations is CPAM with coagulants, such as Polyaluminum Chloride (PAC) or aluminum sulfate (alum). PAC and alum are highly cationic and act as primary coagulants, neutralizing negative charges and destabilizing colloidal materials in the pulp slurry. When used in conjunction with CPAM, they help to prepare the system for the high-molecular-weight CPAM, ensuring more efficient adsorption and bridging. This dual-component approach, often referred to as a microparticle retention system when combined with fine colloidal particles like bentonite or silica, can significantly enhance both retention and drainage beyond what CPAM can achieve alone.

Another important synergy is observed when CPAM is used with dry strength agents, such as starches. While CPAM primarily improves retention and drainage, starches directly enhance the inter-fiber bonding that contributes to paper strength. By ensuring more fines and fillers are retained (thanks to CPAM), the effectiveness of dry strength agents can be maximized, leading to stronger paper products with potentially lower chemical dosages overall.

In the context of surface sizing, CPAM can also play a supportive role. Retention aids like CPAM can improve the retention of surface sizing agents, such as starch-based solutions or AKD/ASA emulsions, on the paper surface. This leads to more efficient sizing, better control over liquid penetration, and improved printability, all while potentially reducing the amount of sizing agent required.

For paper mills dealing with recycled fiber, CPAM can be integrated with deinking chemicals and other process aids. Its ability to manage fines and fillers can improve the efficiency of contaminant removal during the deinking process, contributing to better optical properties and overall quality of recycled paper grades.

NINGBO INNO PHARMCHEM CO.,LTD. leverages its expertise to help clients develop optimized chemical programs. By understanding the specific needs of your papermaking process, we can recommend the ideal combinations of CPAM with other additives to achieve synergistic benefits, driving improvements in retention, drainage, paper strength, and cost-effectiveness. Partnering with us means gaining access to advanced chemical solutions designed for peak performance.