rheology

  • Fumed silica rheology additive, treated Applications
    • Synthetic rubbers and Silicone rubbers: Reinforcing effect , Electrical insulation
    • Sealants: Thickening and thixotropy, Reinforcement, improved adhesion
    • Unsaturated polyester resins: Thickening and thixotropy
    • Paints / Coatings: Thickening and thixotropy, Storage stability (resistance to settlement)
    • Adhesives: Thickening and thixotropy, improved adhesion Storage stability (resistance to settlement)
    • Paper: Adsorbent, Transparency
    • Bulk materials: Anti-caking, free flow aids , Adsorbent, Anti-blocking effect, moisture resistance
    • CMP: Polishing agent
    • Toners: Improved flow properties, electric charge control, Improved toner transfer to paper
    Characteristics Thickening and thixotropy: REOLOSIL provides thickening and thixotropic effects in liquid systems such as polyesters, epoxies, and urethane resins due to interactions between aggregates and the development of three-dimensional networks between REOLOSIL particles. Reinforcement: Adding REOLOSIL as a filler material improves various mechanical properties of elastomers, including modulus, elongation at break, tensile strength and tear resistance. REOLOSIL's large specific surface area also makes it possible to achieve excellent transparency in elastomers. Anti-settling effects: REOLOSIL improves the suspension behavior in liquid systems, such as pigmented coatings or resins containing filters. Anti-caking, effects for Improved flow characteristics: Due to a property that makes it behave like bait bearings, REOLOSIL resists lumping and clogging. It can be used to improve the storage stability of powders that are especially prone to caking. REOLOSIL can also be used to improve flow characteristics and prevent flow problems. Insulation: With its very low solid state conductivity and vast spacing between particles, REOLOSIL provides excellent electrical and thermal insulation properties. Electrical charge: Hydrophobic REOLOSIL is used as a toner additive to stabilize electrical charge characteristics. TOKUYAMA can provide hydrophobic REOLOSIL grades manufactured to custom specifications. Polishing: In the semiconductor manufacturing process, the planarizalion of silicon wafers is achieved via CMP (chemical mechanical polishing) processes such as ILD, STI and metal CMP. REOLOSIL is used in certain CMP slurries as a polishing agent, due to high purity, sub-micron particle size and its distribution characteristics.      
  • Fumed silica rheology additive Applications
    • Synthetic rubbers and Silicone rubbers: Reinforcing effect , Electrical insulation
    • Sealants: Thickening and thixotropy, Reinforcement, improved adhesion
    • Unsaturated polyester resins: Thickening and thixotropy
    • Paints / Coatings: Thickening and thixotropy, Storage stability (resistance to settlement)
    • Adhesives: Thickening and thixotropy, improved adhesion Storage stability (resistance to settlement)
    • Paper: Adsorbent, Transparency
    • Bulk materials: Anti-caking, free flow aids , Adsorbent, Anti-blocking effect, moisture resistance
    • CMP: Polishing agent
    • Toners: Improved flow properties, electric charge control, Improved toner transfer to paper
    Characteristics Thickening and thixotropy: REOLOSIL provides thickening and thixotropic effects in liquid systems such as polyesters, epoxies, and urethane resins due to interactions between aggregates and the development of three-dimensional networks between REOLOSIL particles. Reinforcement: Adding REOLOSIL as a filler material improves various mechanical properties of elastomers, including modulus, elongation at break, tensile strength and tear resistance. REOLOSIL's large specific surface area also makes it possible to achieve excellent transparency in elastomers. Anti-settling effects: REOLOSIL improves the suspension behavior in liquid systems, such as pigmented coatings or resins containing filters. Anti-caking, effects for Improved flow characteristics: Due to a property that makes it behave like bait bearings, REOLOSIL resists lumping and clogging. It can be used to improve the storage stability of powders that are especially prone to caking. REOLOSIL can also be used to improve flow characteristics and prevent flow problems. Insulation: With its very low solid state conductivity and vast spacing between particles, REOLOSIL provides excellent electrical and thermal insulation properties. Electrical charge: Hydrophobic REOLOSIL is used as a toner additive to stabilize electrical charge characteristics. TOKUYAMA can provide hydrophobic REOLOSIL grades manufactured to custom specifications. Polishing: In the semiconductor manufacturing process, the planarizalion of silicon wafers is achieved via CMP (chemical mechanical polishing) processes such as ILD, STI and metal CMP. REOLOSIL is used in certain CMP slurries as a polishing agent, due to high purity, sub-micron particle size and its distribution characteristics.    
  • Rheological additive for intermediate polarity systems. PANGEL B20 is a powdered additive with a high thickening and anti-settling capacity for intermediate polarity systems, particularly recommended for systems based on aromatic and unsaturated polyester type solvents. Properties PANGEL B20 is particularly recommended to provide thixotropic, suspension and sagging-resistance properties to systems based on aromatic and unsaturated polyester type solvents, PANGEL B20 does not require the use of a polar activator for its dispersion. PANGEL B20 provides a strongly pseudoplastic character, producing high consistency levels without affecting viscosity during application. It exhibits its high effectiveness as anti-settling additive in formulations with high solid contents. Use of PANGEL B20 has the following advantages against other conventional additives: •Coatings and paints: Prevents settling of pigments and fillers; controls sagging without aggravating leveling; high stability during transportation and storage. •Printing inks: Improves consistency and prevents settling of pigments. •Unsaturated polyester putties: Improves consistency and workability. •Paint strippers: Improves stability and facilitates stripping action.•Greases based on vegetal oil: High thickening capacity; good stability at high temperature. •Asphalt coatings: High thickening capacity; application in thicker layers; sagging control. • Sealants and joints: Improves wetting and suspension properties; controls sliding. •Others: Control of sagging and dripping; improves stability
  • Pangel B-10 is a powdered additive with a high thickening and anti-settling capacity for intermediate-low polarity systems, particularly recommended for systems based on white spirit type solvents.
  • PANGEL B5 is a powdered additive with a high thickening and anti-settling capacity for low polarity systems, particularly recommended for systems based on both aliphatic solvents and mineral or synthetic oils used as vehicle in liquid formulations.

    Properties

    PANGEL B5 is particularly recommended to provide thixotropic, suspension and sagging-resistance properties to systems based on both aliphatic type solvents and mineral or synthetic oils. PANGEL B5 shows high thickening capacity in low polarity systems without the use of a polar activator for its dispersion. Use of PANGEL B5 has the following advantages against other conventional additives:
    • Decrease of sedimentation
    • High thickening capacity
    • Does not require polar activator
    • High capacity for thikening inverted emulsions
    • Control of sagging and dripping while improves stability.

    Fields of application

    • Oil based concentrated formulations
    • Formulations based in inverted emulsions
  • PANGEL HV is a high efficiency rheological additive, manufactured from high purity sepiolite. Its presentation as a high porosity pellet avoids handling with powder, allowing for maximum efficiency. It is a rheological additive in the form of pellets, for a more convenient handling system.
  • PANGEL S9 is a highly efficient powder rheological additive manufactured from high purity sepiolite, for the use in aqueous systems. It is a powder additive that modifies the aqueous systems to which it is added.
  • PANGEL OM4 is a rheological additive based upon a highly purified bentonite clay designed for low polarity systems. PANGEL OM4 is recommended for both aliphatic solvents and mineral or synthetic oils. Pangel OM4 requires the use of polar activators.

    Properties PANGEL OM4 is an organobentonite recommended for providing the following properties in oil based systems:

    • Decrease of sedimentation
    • High thickening capacity
    • Does not require polar activator
    • High capacity for thikening inverted emulsions
    • Control of sagging and dripping while improves stability.

    Fields of application

    Use of PANGEL OM4 as a rheological additive is recommended in the following applications:
    • Oil based concentrated formulations
    • Formulations based in inverted emulsions
     
  • PANGEL OM8 is a rheological additive for low to medium polarity systems based upon highly purified bentonite clay. PANGEL OM8 is particularly recommended for systems based on resins such as polyurethanes, acrylics, polyesters, epoxy esters and alkyds.

    Properties

    PANGEL OM8 is an organobentonite recommended for providing the following properties in intermediate polarity systems:
    • Thixotropic and pseudoplastic effects.
    • Sag control.
    • Excellent levelling.
    • Prevents pigment from long-term storage settling.

    Fields of application

    Use of PANGEL OM8 as a rheological additive is recommended in the following applications:
    • Anti-corrosive paints.
    • Polyester coatings.
    • Primers.
    • Industrial finishes.
    • Road marking paints.
    • Bituminous undercoats.
    • Varnishes.
    • Inks.
  • Low dust self dispersing rheological additive for mortar and concrete, improving properties in fresh and hardened state. Properties CIMSIL A55 G is a chloride-free thixotropic additive specifically developed to act as an anti-sagging/antislipping agent, CIMSIL A55 G fully develops its rheological properties by activation in the presence of cement or gypsum. It improves workability and visual finish in the systems to which it is incorporated. It is a low dust granular additive designed to provide high efficiency suspension properties.
    CIMSIL A55 G gives mortar, plaster and concrete the following properties:
    • Thixotropy • Workability • Improves adherence to the substrate • Improves pumpability • Avoids both tile slipping and mortar sagging • Decreases bleed and segregation • Gives homogeneity and cohesiveness to the finish product • Improves the surface finish
    CIMSIL A55 G is a thixotropic additive developed to be used in water-based compositions where electrolytes are present. It is a low dust granular additive designed to provide high efficiency suspension properties.
    Field of Application
    • Rendering mortars • Tile adhesive mortars • Waterproof mortars • Filling mortars • Self-levelling mortar • Repairing mortars • Pumpable concrete • Decorative concrete • Precasted concrete
  • PANGEL OMD1 is self-dispersing rheological additive for medium to low polarity systems, based upon a highly purified bentonite clay. PANGEL OMD1 is recommended for both aliphatic solvents and mineral or synthetic oils.

    Properties

    PANGEL OMD1 is an easy-to-disperse self-activated organobentonite, that is recommended for providing the following properties in solvent-borne systems:
    • Thixotropic and pseudoplastic effects.
    • Sag control.
    • Excellent levelling.
    • Prevents pigment from long-term storage settling.
    • No need of pregelling or the use of polar activators.

    Fields of application

    Use of PANGEL OMD1 as a rheological additive is recommended in the following applications:
    • Anti-corrosive paints.
    • Polyester coatings.
    • Primers.
    • Industrial finishes.
    • Road marking paints.
    • Varnished.
    • Lubricating greases.
    • Bituminous undercoats.
  • PANGEL S1500 is specially recommended for salt and electrolyte rich systems.

    Properties

    PANGEL S1500 is a thixotropic additive developed to be used in water-based compositions where electrolytes are present. PANGEL S1500 imparts excellent thixotropic and pseudoplastic properties to the systems it is incorporated to improving stability and spreading properties:
    • At rest, it provides the system with a high consistency what produces a suspending effect and a great resistance to settling, avoiding sedimentation. Also sagging and film thickness are highly improved due to this effect.
    • Under a shear stress, PANGEL S1500 forces the viscosity to promptly fall down, easing manual and mechanical application and leveling
    PANGEL S1500 controls system flow and consistency, ensuring optimal distribution of pigments, fillers and other components. PANGEL S1500 is electrolyte-activated, therefore suspensions made with PANGEL S1500 are specially stable even at high electrolyte concentration. Its rheological behaviour is stable in a broad pH range and at high temperatures. PANGEL S1500 keeps a high absorption capacity and a high degree of interaction with polymers.

    Fields of application

    • Suspending agent for liquid additives.
    • Asphalt emulsions.