Bentonite Modified with Quaternary Ammonium Salts
At Camp-Shinning, we apply proprietary quaternary ammonium salt intercalation technology to transform natural sodium bentonite into high-performance organoclay -- delivering superior rheology control across solvent-based and oil-based industrial systems.
What Is Quaternary Ammonium Salt-Modified Bentonite?
Natural bentonite is a hydrophilic layered silicate clay mineral dominated by montmorillonite. In its raw form, it disperses readily in water but is incompatible with organic solvents, resins, and oil-based systems. To unlock its full rheological potential in non-aqueous applications, the clay interlayer must be chemically modified.
Quaternary ammonium salts -- long-chain alkyl ammonium compounds such as dimethyl dihydrogenated tallow ammonium chloride (2HT) or benzyl dimethyl hydrogenated tallow ammonium chloride -- are used as intercalating agents. Through an ion-exchange reaction, the inorganic sodium or calcium cations between the montmorillonite layers are replaced by bulky organic ammonium cations.
This process expands the interlayer spacing (d-spacing), converts the clay surface from hydrophilic to organophilic, and enables the clay platelets to exfoliate and disperse uniformly in organic media -- forming the thixotropic gel network that gives organoclay (organophilic clay) its unique rheological performance.
Modification Process Overview
Types of Quaternary Ammonium Salts Used in Organoclay Production
The choice of quaternary ammonium salt determines the polarity compatibility of the final organoclay product. Camp-Shinning engineers each grade for specific solvent polarities and application requirements.
Dimethyl Dialkyl Ammonium (2HT)
Dimethyl dihydrogenated tallow ammonium chloride -- the most widely used intercalant. Provides maximum organophilicity for non-polar and low-polarity systems.
- Oil-based drilling fluids (OBM)
- Solvent-based paints & coatings
- Lubricating greases
- Aromatic & aliphatic solvents
Benzyl Dimethyl Alkyl Ammonium (BT)
Benzyl dimethyl hydrogenated tallow ammonium chloride. The benzyl group introduces moderate polarity, broadening compatibility with medium-polarity resin systems.
- Epoxy & polyurethane systems
- Adhesives & sealants
- Printing inks
- Unsaturated polyester resins
Trimethyl Alkyl Ammonium (TMAT)
Trimethyl hydrogenated tallow ammonium or methyl bis(2-hydroxyethyl) tallow ammonium. Suitable for higher-polarity systems requiring activation with polar solvents.
- Cosmetics & nail polish
- Polar solvent-based coatings
- Foundry coatings
- Automotive putty systems
Key Technical Properties of Quaternary Ammonium-Modified Organoclay
The quaternary ammonium intercalation process endows organoclay with a unique combination of rheological properties that cannot be achieved by conventional additives.
Thixotropy
Gel structure breaks under shear and recovers at rest -- enabling easy application and sag resistance after application.
Anti-Sagging
Prevents vertical surface dripping in coatings, adhesives, and sealants -- critical for automotive, marine, and construction applications.
Anti-Settling
Suspends heavy pigments, fillers, and refractory powders during storage -- eliminating hard sediment and ensuring product homogeneity.
High-Temp Stability
Maintains viscosity and gel strength under extreme temperatures -- validated up to 230°C in oil-based drilling fluid applications.
| Performance Parameter | Low Polarity Grade | Medium Polarity Grade | High Polarity Grade |
|---|---|---|---|
| Interlayer d-Spacing (Å) | 18-22 | 16-20 | 14-18 |
| Organic Content (LOI %) | 38-45% | 32-40% | 28-35% |
| Viscosity in Mineral Oil (mPa·s) | ≥4,000 | ≥3,000 | ≥2,500 |
| Max. Operating Temperature | 230°C | 200°C | 180°C |
| Particle Size (mesh) | 200 / 325 | 200 / 325 | 200 / 325 |
| Activation Required | Self-activating | Optional activator | Polar activator needed |
Application Performance in Key Industries
Camp-Shinning's quaternary ammonium salt-modified organoclay solves critical formulation challenges across these industries.
Oil-Based Drilling Mud (OBM)
2HT-modified organoclay provides critical viscosity and gel strength to suspend drill cuttings and maintain borehole stability under HPHT conditions. Stable up to 230°C with no performance degradation.
Solvent-Based Coatings & Paints
Prevents sagging on vertical surfaces and pigment settling during storage. Ideal for automotive refinish, marine anti-corrosion, and industrial maintenance coatings requiring smooth, uniform film build.
High-Temperature Lubricating Greases
As a non-soap thickener, organoclay greases have no dropping point -- maintaining structural integrity at temperatures where conventional lithium or calcium soap greases fail. Excellent water resistance and shear stability.
Adhesives, Sealants & Polyurethane Systems
Controls application rheology to prevent run-off on vertical joints while maintaining workability. Prevents heavy filler sedimentation during shelf storage, ensuring consistent product performance over time.
Cosmetics, Nail Polish & Personal Care
Suspends pigments in nail polish, foundation, and lipstick formulations. Provides smooth, even application feel and prevents color separation -- meeting cosmetic-grade purity requirements.
Foundry Coatings & Refractory Applications
Suspends quartz powder, graphite, and other refractory materials in alcohol-based foundry coatings. Ensures uniform coating on sand mold surfaces, preventing molten metal seepage and improving casting surface quality.
Camp-Shinning's Proprietary Quaternary Ammonium Modification Technology
Many suppliers claim to manufacture organoclay. Camp-Shinning proves it through consistent raw material control, patented modification processes, and verifiable performance data.
National Technical Patent
Holder of national patent for "A Modified Organic Bentonite, Its Preparation Method and Application" -- proprietary intercalation chemistry not available from generic suppliers.
Strict CEC Utilization Control
Precise control of cation exchange capacity (CEC) utilization rate during quaternary ammonium salt intercalation ensures reproducible d-spacing and consistent batch-to-batch performance.
Proprietary Bentonite Ore Deposits
Controlled raw material sourcing from proprietary high-purity montmorillonite deposits -- the foundation of consistent organoclay quality that contract manufacturers cannot replicate.
20+ Years R&D Expertise
Two-thirds of core technical staff have over 20 years of organoclay modification experience -- enabling continuous process optimization and custom grade development for specific application needs.
20,000 Tonnes Annual Capacity
Full-scale production capability with ISO 9001-certified quality management ensures on-time delivery for bulk orders -- serving global markets from Europe to the Middle East and Americas.
Full Traceability & Sample Retention
Every production batch is retained and traceable. XRD, TGA, and viscometry data available upon request -- giving buyers the technical confidence to qualify Camp-Shinning as a long-term organoclay supplier.
Technical FAQs: Quaternary Ammonium Salt-Modified Bentonite
Common questions from formulators and procurement engineers evaluating organoclay suppliers.
What is the difference between organoclay and natural bentonite?
Why does the choice of quaternary ammonium salt affect organoclay performance?
Does organoclay require a polar activator (dispersant)?
What is the typical dosage of organoclay in formulations?
How does Camp-Shinning ensure consistent organoclay quality batch to batch?
Source Quaternary Ammonium Salt-Modified Organoclay Direct from the Manufacturer
Camp-Shinning supplies bulk organoclay to formulators and distributors worldwide. Request technical data sheets, samples, or a custom grade consultation from our experienced team.
WhatsApp & WeChat available · Bulk supply · Custom grades · Global shipping
