Advanced Synthesized Cross-Linked Polymers for Industrial Dewatering, EOR Oilfields, Mining Beneficiation & High-Shear Process Engineering
Explore our top-selling cationic, anionic, and nonionic bulk polyacrylamide (PAM) grades engineered for rigorous solid-liquid separation and rheology modification.
Polyacrylamide (PAM, CAS 9003-05-8) is a synthetic high-molecular-weight water-soluble polymer created through the polymerization of acrylamide monomers. In modern chemical synthesis, the controlled introduction of cross-linking agents—such as N,N'-Methylenebisacrylamide (MBAA)—transforms standard linear polyacrylamide chains into complex, multi-dimensional networked matrices known as Cross-Linked Polyacrylamide (XL-PAM).
Unlike conventional linear PAM, cross-linked polyacrylamide exhibits remarkable non-Newtonian pseudoplastic flow properties. The covalent cross-links prevent catastrophic chain scission under high shear forces, maintaining rheological integrity in deep oilfield drilling fluids, high-pressure fracturing, and turbulent sludge pumping setups.
Through precise co-polymerization with functional monomers (such as DAC, DMC, or AMPS), our polymer matrices achieve tailored ionic charge profiles: Cationic (CPAM), Anionic (APAM), and Nonionic (NPAM), spanning charge densities from 5% to 80% for optimized colloidal charge neutralization.
By adjusting cross-linking density, XL-PAM can be synthesized as a water-swellable hydrogel capable of absorbing hundreds of times its dry mass in aqueous media. This structural versatility allows it to function as a loss-circulation material (LCM) in drilling operations and a moisture-retention soil conditioner in agriculture.
Established in 2011 inside the Free Trade Zone of Qingdao, China, Qingdao Oubo Chemical Co., Ltd. has grown into an international leader in polyacrylamide production, delivering sustained annual growth rates exceeding 10%. Operating with an annual capacity breaking through 50,000 Metric Tons in 2018, Oubo combines raw material security with rigorous Quality Assurance.
Oubo utilizes advanced biological/enzymatic methods for acrylamide monomer synthesis. This proprietary process operates under mild thermal conditions, producing ultra-pure monomers free from metallic copper residues found in traditional catalytic processes. This structural purity grants our cross-linked polymers higher molecular weights and cleaner chemical profiles.
Positioned directly within Qingdao's Free Trade Zone, Oubo leverages direct maritime export routes alongside tier-one global chemical raw material sourcing (including strategic partnerships with suppliers like SINOPEC and Eni).
Our specialized Cationic, Anionic, and Nonionic cross-linked polyacrylamide lines deliver optimized performance across complex industrial processes worldwide.
Essential for municipal sewage treatment, industrial solid-liquid separation, sedimentation, clarification, and belt/centrifugal sludge dewatering. Highly active cationic (CPAM) charge neutralizes organic suspended solids in leather, paper, citric acid, pharmaceutical, and dyeing waste streams.
Functions as a retention aid, drainage promoter, dry/wet strength agent, and anionic trash catcher. Enhances paper physical strength, retains fine fibers/fillers, reduces raw material consumption, and clarifies white water in deinking operations.
Crucial for tertiary oil recovery (EOR), profile control, plugging agents, drilling fluids, and hydraulic fracturing fluids. Reduces fluid loss, stabilizes shale, lubricates drill bits, carries cuttings under elevated temperatures, and flocculates oil sands tailings.
Accelerates solid-liquid separation via filtration and centrifugation in coal washing plants and tailing treatment ponds. Highly effective in precious and base metal extraction (Gold, Silver, Iron, Nickel, Copper).
Utilized as an food-grade approved settling flocculant during raw sugarcane juice clarification and flotation processes, rapidly separating mud impurities to maximize sucrose yield and clarity.
Serves as an effective textile sizing agent, fabric treatment additive, and anti-static finishing agent. Removes color turbidity and suspended dyestuff solids from concentrated textile dye house effluent.
Compare physical characteristics, ionic charges, and application parameter guidelines across Oubo Chemical's core polyacrylamide product series.
| Polymer Type | Ionic Charge Degree | Molecular Weight (Million) | Solid Content (%) | Dissolution Time | Primary Industrial Sector |
|---|---|---|---|---|---|
| Cationic PAM (CPAM) | 10% - 80% Cationic | 8.0 - 15.0 Million | ≥ 88% Powder | ≤ 60 Mins | Municipal Sludge Dewatering, Organic Wastewater, Papermaking Retention |
| Anionic PAM (APAM) | 5% - 60% Anionic | 12.0 - 25.0 Million | ≥ 89% Powder | ≤ 50 Mins | Coal Tailings Washing, Mineral Dressing, EOR Oil Recovery, Sugar Clarification |
| Nonionic PAM (NPAM) | Neutral (< 2%) | 6.0 - 12.0 Million | ≥ 90% Powder | ≤ 90 Mins | Acidic Industrial Effluent, Soil Conditioning, Oilfield Drilling Mud Thickener |
| Cross-Linked Hydrogel Grade | Tailored Matrix | Engineered Network | ≥ 92% Granular | Swellable Hydrogel | Drilling Fluid Loss Circulation Control (LCM), Water-Shutoff Profile Control |
Oubo Chemical provides flexible, humidity-resistant, and international-standard packaging configurations tailored for sea freight, rail transportation, and long-term storage under variable climates.
25kg multi-wall paper-plastic composite bag with inner PE moisture barrier liner. Ideal for private-label distributors.
Heavy-duty 25kg standard brand bag featuring complete hazard classification and handling guidelines in English.
750kg - 1000kg high-capacity FIBC jumbo bags designed for high-volume automated dosing systems in mining and oilfields.
Fumigated wooden or plastic pallets wrapped with protective stretch film, preventing ocean dampness during transit.
Navigating international chemical procurement requires complete regulatory adherence, consistent batch quality, and rapid local technical assistance.
Oubo Chemical operates in strict conformance with international chemical safety standards. Our manufacturing infrastructure is ISO 9001:2008 certified, ensuring every metric ton of polyacrylamide delivered to European, North American, and Southeast Asian markets fulfills REACH chemical registration standards.
To guarantee optimal dosage efficiency, our chemical engineering team provides complimentary jar testing services. Customers can submit wastewater or mineral pulp samples to our Qingdao laboratory for precise polymer matching (ionicity, molecular weight, cross-linking ratio) prior to placing bulk commercial orders.
Whether you require specific granule size distribution (< 20 mesh to 100 mesh), customized active content powders, or private label branding, Oubo offers turnkey OEM chemical synthesis options adapted to regional market demands.
Direct expert answers to key questions regarding cross-linked polyacrylamide chemical performance, dosage techniques, storage recommendations, and enterprise purchasing.
Cross-linked polyacrylamide (XL-PAM) contains inter-molecular covalent bonds established by cross-linking monomers like MBAA. These cross-links transform linear polymer chains into a network structure. This structural modification enhances resistance to mechanical shear degradation, increases fluid thermal stability in high-temperature environments, and enables hydrogel water-swelling capabilities that standard linear polyacrylamides cannot achieve.
Selection depends primarily on the electrical charge of the suspended particles in your water or pulp stream:
• Cationic (CPAM): Best for negatively charged organic particles (e.g., biological sludge, municipal wastewater, food processing waste).
• Anionic (APAM): Ideal for positively charged or neutral inorganic mineral suspensions (e.g., coal tailings, clay slurry, sand washing, metalliferous mining).
• Nonionic (NPAM): Most effective in low pH / acidic conditions or complex mixed mineral slurries.
Polyacrylamide dry powder should be dissolved in clean water at a concentration between 0.1% and 0.3% (w/v). Slowly sprinkle the dry powder into the vortex of continuously stirred water (400-600 rpm) to prevent agglomeration ("fisheye" formation). Continue stirring at lower speeds (200 rpm) for 45-60 minutes until completely dissolved before dosing into the process stream.
When stored in original sealed moisture-proof packaging in a cool, dry, ventilated warehouse below 35°C (95°F), dry PAM powder maintains full efficacy for 24 months. Avoid exposure to direct sunlight, elevated humidity, and moisture, which can cause powder caking.
Oubo utilizes a patented biological enzymatic synthesis process for acrylamide production. This method operates at optimal low temperatures without copper catalyst residues. Every production batch undergoes automated continuous polymerization and triple QC testing, ensuring unreacted acrylamide monomer (AM) residual levels remain strictly under 0.05% (500 ppm).
Leveraging our location inside the Free Trade Zone of Qingdao Port, standard order fulfillment lead time is 7 to 14 days from contract confirmation. We offer FOB Qingdao, CIF worldwide, CFR, and DDP terms, supported by standardized 25kg bags or 1-ton bulk jumbo containers.
Select from our specialized polyacrylamide grades engineered for high-performance municipal, oilfield, paper, and mining applications.
Oubo Chemical
