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UCARFLOC™ 309
UCARFLOC™ 309 is a high–molecular weight polyethylene oxide polymer typically used as a flocculating agent and retention aid for pulp, fibers, and fillers in papermaking processes.
UCARFLOC™ polymers are water-soluble, high–molecular weight polyethylene oxide polymers. They exhibit an excellent affinity for silica, mechanical pulps, fillers, and pitch in papermaking processes. This makes UCARFLOC™ 309 an extremely effective flocculant for retaining silica and other fine particles to reduce their concentration in papermaking wastewater. It also functions as an outstanding retention aid to improve the papermaking process and quality of paper, where it improves first-pass retention of pulp, fiber, and fillers. This increased retention creates drainage that is easier to filter and recycle.
In addition to being a retention aid for paper, the UCARFLOC™ 309 polymer may also be used in wastewater treatment processes as a flocculating agent. It provides flocculation of silica at as little as 0.5 ppm with a maximum effect at 2 ppm. Compared to polyacrylamides, UCARFLOC™ 309 provides improved performance at lower use rates. It is not impacted by pH because the flocculation mechanism is not charge dependent. Floc strength is also substantially increased when incorporating UCARFLOC™ 309. The flocs created are slippery, enhancing drainage rate in belt presses and reducing filter clogging.
Specifications
Molecular weight (g/mol): 8,000,000
Brookfield viscosity (1% solution in water, at 25°C, mPa·s): 10,000–15,000
Excellent affinity for silica Increases pulp, fiber, and filler retention in paper manufacturing Improves quality and consistency of paper Effective retention and flocculating regardless of pH Affinity for pitch and other common paper wastewater contaminants Provides flocs with lubrication for increased drainage rate
Problems Solved
Poor paper strength caused by inadequate retention of pulp, fibers, and fillers Ineffectiveness of paper retention aids in pH extremes Ineffectiveness of flocculating agents in pH extremes Costs associated with disposing of waste that has not been properly dewatered Slow drainage of wastewater in papermaking operations
Applications
Flocculating agent for wastewater treatment Retention aid for papermaking
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Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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