Poly diallyl dimethyl ammonium chloride, commonly abbreviated as PolyDADMAC or PDADMAC, is a high molecular weight cationic polyelectrolyte renowned for its exceptional charge density and water solubility. This versatile polymer, with the chemical formula (C₈H₁₆NCl)_n, is synthesized through the free radical polymerization of diallyldimethylammonium chloride monomers. Its structure features quaternary ammonium groups along the polymer chain, providing a strong positive charge that enables superior interaction with negatively charged particles in aqueous environments.

In industrial applications, poly diallyl dimethyl ammonium chloride excels as a flocculant, decolorant, and coagulant aid. For water treatment professionals, it aggregates suspended solids, colloidal particles, and organic matter, facilitating efficient sedimentation and filtration. Typical molecular weights range from 400,000 to 1,200,000 Daltons, with charge densities of 4.0-7.0 meq/g, allowing customization for specific viscosity and performance needs. Unlike inorganic coagulants like aluminum sulfate, PolyDADMAC produces less sludge, operates effectively across a broad pH range (4-9), and minimizes dosage requirements—often 10-50% less than alternatives.

The global demand for PolyDADMAC has surged, projected to reach $1.2 billion by 2026 (Statista, 2025 forecast), driven by stringent wastewater regulations in the USA under the Clean Water Act. In paper manufacturing, it enhances drainage, retention of fines, and sizing agent distribution, boosting machine speeds by up to 15%. Textile dyers rely on it for color fixation and effluent clarification, reducing COD levels by 70-90%. Food processing plants use low-toxicity grades for clarifying beverages and stabilizing emulsions.

At Global Technology Co., Ltd, our poly diallyl dimethyl ammonium chloride is produced in state-of-the-art facilities compliant with ISO 9001, DMF, and FDA guidelines for indirect food contact. We offer aqueous solutions (20-50% concentration) and solid forms, with solid content precisely controlled at 40±1%. Our collaboration with university labs ensures batch-to-batch consistency, verified by NMR spectroscopy, GPC for molecular weight distribution, and zeta potential measurements. This rigor addresses your pain points: inconsistent quality from low-tier suppliers and exorbitant import duties.

Consider the technical profile: Viscosity (25°C, 10% solution) of 100-1000 cps, density 1.05-1.15 g/cm³, and pH 5-7. It's stable up to 100°C and compatible with anionic polymers for dual-flocculation systems. In oil & gas, PolyDADMAC demulsifies produced water, separating oil from brine with 95% efficiency. For USA buyers, we navigate REACH, TSCA, and Proposition 65 compliance seamlessly, providing SDS and COA with every shipment.

Historically, PolyDADMAC emerged in the 1980s as a superior alternative to polyamines, offering higher charge efficiency. Today, innovations like branched structures enhance bridging flocculation. Our OEM/ODM services allow tailoring charge density or copolymerization with acrylamide for hybrid flocculants. Sourcing from China’s robust supply chain, we leverage economies of scale for pricing 25-35% below US domestic suppliers like SNF or BASF, without compromising quality.

You, as a technical director, demand ROI: Our PDADMAC cuts chemical costs by 28% (case: Midwest wastewater plant) and reduces sludge disposal by 40%. High-speed delivery via consolidated sea/air freight to LA/Long Beach ports ensures JIT inventory. Backed by our powerful factory—spanning 50,000 sqm with 20 polymerization reactors—we scale from 1kg R&D samples to 500MT annual contracts.

Environmental credentials shine: Biodegradable under OECD 301B, low aquatic toxicity (LC50 >100 mg/L), and zero VOCs. In 2026, with EPA’s PFAS regulations tightening, PolyDADMAC’s non-fluorinated profile positions it as a sustainable choice. We exceed baselines with ECOCERT validations for green chemistry.

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