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Jiangsu Hengfeng has become a professional production and research and development base for water treatment chemicals and oilfield chemicals in China.

  • How Temperature and Salinity Affect PAM Performance in Oilfields

    Polyacrylamide (PAM) polymers experience 30-70% viscosity loss when reservoir temperatures exceed 80°C, while high-salinity brines above 100,000 ppm total dissolved solids can reduce polymer effectiveness by 50-80%. Temperature and salinity critically degrade PAM viscosity and retention. These two factors represent the primary operational challenges in chemical enhanced oil recovery (EOR), as the...

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  • Industrial Wastewater Treatment: PAM Alone vs Coagulant + PAM

    In industrial wastewater treatment, the fastest way of using waste chemicals is choosing a “one-size-fits-all” program. As a PAM manufacturer and supplier, we, Jiangsu Hengfeng Fine Chemical Co., Ltd, typically suggest two workable paths: (1) using polyacrylamide (PAM) as the primary flocculant, or (2) building a two-step train with a coagulant followed by PAM. The right choice depends on how you...

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  • How to Choose a Retention Aid for Different Paper Grades

    The most reliable approach is to match the retention system to the grade’s shear and ash/fines load: high-shear grades (tissue, high-speed printing) typically need a microparticle program, while moderate-shear, lower-ash grades often run well with a single cationic PAM (CPAM). If your furnish carries high anionic trash (recycled fiber, coated broke), start with charge control (coagulant) before p...

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  • Polyacrylamide (PAM) for Municipal Drainage Erosion Control

    Polyacrylamide (PAM) can significantly reduce sediment in municipal drainage runoff when applied at the right rate and kept out of live water. Used as a temporary soil-binding/flocculation aid alongside BMPs (mulch, mats, check dams, inlet protection), PAM improves particle settling and reduces turbidity in conveyance features like swales, ditches, and outfall transitions. ▶ Where PAM works best ...

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