Polyacrylamide for Paper Mills

        Polyacrylamide for paper mills is a white granular solid. PAM facilitates flocculation by neutralising charges and forming bridging adsorption bonds within suspensions. It possesses no distinctive odour, though colouration may vary between batches, typically appearing white or creamy white. When dry, the polyacrylamide granules remain well-dispersed and non-tacky. Polyacrylamide for papermaking is extensively utilised within the papermaking industry as a retention aid, filtration aid, uniformity agent, and water treatment chemical.

Polyacrylamide specifically formulated for papermaking is collectively termed as such, serving as retention aids, filtration aids, uniformity agents, and other chemical agents widely employed within the papermaking industry.

The function of polyacrylamide in papermaking lies in enhancing paper quality. It improves pulp dewatering properties, increases retention rates of fine fibres and fillers, reduces raw material consumption, and minimises environmental pollution. Its effectiveness in papermaking depends on average molecular weight, ionic nature, ionic strength, and the activity of any copolymers present.

① Non-ionic papermaking polyacrylamide is primarily used to enhance pulp filterability, increase dry paper strength, and improve retention rates of fibres and fillers;

② Anionic polyacrylamide for papermaking primarily functions as a dry and wet strength enhancer and retention aid for paper;

③ Cationic polyacrylamide for papermaking is chiefly employed in papermaking wastewater treatment and as a filtration aid. It also demonstrates favourable effects in improving filler retention rates.

④ Furthermore, papermaking polyacrylamide finds application in wastewater treatment and fibre recovery within the industry.

Within the papermaking sector, Ciba Specialty Chemicals predominantly supplies industry-specific papermaking additives. The cationic retention and filtration aid C8560 is extensively employed in producing cultural paper, newsprint, cardboard, and speciality moulded products. It is recommended to add it to the dilute pulp, with the addition point selected at a shear point prior to sheet formation. Dosage ranges from 0.01-0.1% (relative to absolute dry pulp). It can be used in single, dual, and micro-particle retention systems. It can also serve as a polymeric flocculant to enhance the efficiency of the paper machine recovery system.

• Enhances retention of fine fibres, CaCO₃, TiO₂, and kaolin in the wet end.
• Provides a stable wet-end environment, improving sheet formation and paper properties.
• Improves drainage during sheet formation and pressing, thereby reducing energy consumption in the drying process.
• Lowers white water solids content, increasing raw material yield and recovery system efficiency.
• Wide pH adaptability, independent of aluminium sulphate usage.
• FDA and BGVV certified for use in food contact paper and board production.
• Delivers stable cationic charge retention across acidic, neutral, and alkaline systems.
• Improves retention of wet-end colloidal substances, thereby enhancing sizing agent and dye efficiency.
• Increases paper machine yield and improves machine runnability.
• Contains no surfactants and is environmentally benign.
• Available in multiple packaging specifications.


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Product Model	Appearance	Molecular weight (10,000)Solid content (%)Ionisation/hydrolysis degree (%)	Residual monomer (%)Scope of Application
Anionic	White granules	300~2200	≥90	Degree of hydrolysis10-45	≤0.2	The pH value of water is neutral or alkaline.
Cationic	White granules	500~1200	≥90	Ionisation degree10-80	≤0.2	Belt filter press/Centrifugal filter press/Filter press
Non-ionic	White granules	200~1500	≥90	Degree of hydrolysis0-5	≤0.2	The pH value of water is neutral or alkaline.