Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- CASE Ingredients Functions
- Industrial Additives Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Industrial Additives Features
- Product Features
- Pangel® S9 is a highly efficient rheological additive based in high purity sepiolite. It is incorporated to the bicomponent epoxy coating as a post additive in order to adjust the right viscosity while allow easy application with the trowel.
- It is indicated in joints and cracks filling, and in corners and in the joint of walls and floor.
- Pangel® S9 is introduced in the formula as replacement of fumed silica (i.e. Aerosil 202).
Applications & Uses
- Markets
- Applications
- Applicable Processes
- Application Method
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Adhesive & Sealant End Applications
- Coating End Applications
- Industrial Additives End Use
- Use Level
- 4.17
- Field of Applications
- Mortar and plaster additive.
- Suspending agent for liquid additives.
- Asphalt sheets.
- Asphalt emulsions.
- Anti-corrosion coatings.
- Water-based paints.
- Foundry coatings.
- Friction elements.
- Joint fillers.
- Epoxy adhesives.
- Sealants and mastics.
- Sound dampening Sheets
The homogeneity imparted to these systems by Pangel® S9 allows, in some cases, its ability to enhance the effect of some of the key components of their formulations, therefore allowing for the reduction of the dose with a resulting cost saving.
- Recommendation for use
Pangel® S9 can be incorporated to the formula during dispersion or mixing, as a post-additive or as a pre-gel.
- Dosage
Recommended addition rate for Pangel® S9 can vary significantly depending on the system, ranging from 0.05% to 2%.
- Instructions for Use
- Pangel® S9 can be added directly to the anionic asphaltic mixture after its emulsifying stage, although it is also possible to include the product during manufacture of the emulsion. However, the necessities and infrastructures available in each case will lead the most correct way of incorporating the product.
- In spite of the above, it is always recommended to add PANGEL S9 after the emulgent. This will avoid competence between the emulgent and PANGEL S9 for covering homogeneously the bitumen drop. The better the dispersion of the emulgent and PANGEL S9, the greater the stability and emulsification of the system and, therefore, the final technical performance of the emulsion.
- Pangel® S9 requires high shear to develop all its effectiveness and ensure its complete dispersion in the matrix. In this way, the formation of the emulsion and its preparation for subsequent addition of the remaining components of the formulation, such as mineral fillers, fibers, polymers, hardeners, softening agents, etc. is facilitated.
- In addition, Pangel® S9 may play the function of thickener and gelling of the system. Thus, Pangel® S9 is added to a conventional commercial emulsion to thicken and stabilize the emulsified anionic system. This allows eliminating the possibility of syneresis problems during storage, specially in the asphaltic emulsions used for primers. Therefore, it is possible, in these cases, to provide the system with an extraordinary water resistance that permits diluting the emulsion with any type of water without breaking it or becoming destabilized.
- Conclusion
- Pangel® S9 is incorporated to bicomponent epoxy coatings as a post additive in order to adjust the right viscosity while allow easy application with the trowel.
- It is indicated in joints and cracks filling, and in corners and in the joint of walls and floor.
- Pangel® S9 is introduced in the formula as replacement of fumed silica (i.e. Aerosil 202).
- Results
Associative Thickener: PAA/Clay (Formulation from ROHM AND HAAS)
- Table 1 shows the results of viscosity, pseudoplasticity and syneresis of the mixtures, together with the values of a commercial product (CIF from LEVER). The base formulation was reproduced using PANGEL 8-9 instead of bentonite and also using the different thickeners individually. PANGEL 8-9 shows higher associative thickening effect than bentonite and also an important synergistic effect with PM.
Thickener: Pangel 5-9 versus PAA (Fonnulation from NL)
- Table 2 shows the results obtained; 4% Pangel 8-9 produces a product with similar stability to that containing 1 % of ACU80L; however the rheological profile is more pseudoplastic. When ACU80L is combined with PANGEL 8-9, a great increase in viscosity is observed.
- Water Based Systems
Benefits of Pangel® S9 for low to medium solids systems
- Controls syneresis during storage.
- Increases resistance to sagging.
- Reduces sedimentation in Pigment pastes and slurries of fillers.
- Work synergistically with organic thickeners for increasing viscosity.
Benefits of Pangel S9 for high viscosity and high solids systems
- Improves workability in thick paints.
- Increases resistance to sagging.
- Improves pumping and spraying.
- Reduces sedimentation and controls syneresis during storage.
- It works synergistically with organic thickeners for increasing viscosity as well in this kind of systems.
Main applications with high viscosity and high solids content
- Textural paints
- Thick coat paints
- Pastes for wall preparation (sparkles, putties, crack fillers)
- Skim coats
- Pigment Paste stabilization
Properties
- Physical Form
- Appearance
- Free-flowing powder
- Typical Properties
Value Units Test Method / Conditions Particle Size Distribution (by Laser Diffraction D50) 8.16 μm Particle Size Distribution (by Laser Diffraction D10) 1.52 μm Particle Size Distribution (by Laser Diffraction D90) 27.75 μm Particle Size Distribution (by Laser Diffraction Mean Size) 11.88 μm Particle Size Distribution (by Wet Sieving Fraction Retained in 45μm) 0.1 % - Physico-Chemical Properties
Value Units Test Method / Conditions Moisture max. 10.0 % - Bulk Density 30 - 90 g/l - Brookfield Viscosity¹ (at 5rpm) 30,000 - 60,000 mPa-s - Particle Size Distribution (by Wet Sieving Residue on 45 μm) max. 0.5 % pH Value 8.8 - NET-077 Synerisis² 0 - NET-066 Absorption 290 - Dispersed Oil Particulate, NET-068 Surface Area (BET, Nitrogen) 320 - NET-069 - Particle Size Distribution
Value Units Test Method / Conditions Particle Size Distribution (by Wet Sieving Residue on 44μm) max. 0.1 % Particle Size Distribution (by Wet Sieving Residue on 10μm) max. 5 % Particle Size Distribution (by Wet Sieving Finer than 5μm) min. 90 % - Mineral Properties
Value Units Test Method / Conditions Sepiolite min. 85 % - Other Clays max. 15 % - Sepiolite Clay Mineral 89 % - Smectite Clay And Mica 9 % - Feldspars 1 % - Quartz max. 1 % - - Characteristics
Value Units Test Method / Conditions Consistency 123 KU - Fineness of Grind 6 n° Hegman - Note
- ¹Suspension at 6%, dispersed at high shear (18 m/s) for 5 minutes
- ² Suspension at 3% in water, stirred for 1 min. Syneresis measured after 72 hours.
- Product Properties
Pangel® S9 imparts excellent thixotropic and pseudoplastic properties to the system in which it is incorporated, improving stability and spreading properties :
- At rest, it provides the system with a high consistency, which produces a suspending effect and a great resistance to settling, avoiding sedimentation.
- Under shear stress, Pangel® S9 forces the viscosity to promptly fall down, easing manual and mechanical spreading and levellina.
- Pangel® S9 controls system flow and consistency, ensuring optimal distribution of solvents, fillers and other components.
- Suspensions made with Pangel® S9 are stable even at high electrolyte concentration. Its rheological behaviour is stable in a wide pH range and at high temperatures.
- Pangel® S9 keeps a high absorption capacity and a high degree of interaction with polymers.
Technical Details & Test Data
- Rheological Index Versus Concentration
Figure 2: Rheological index versus concentration of PANGEL S-9 in the pregel. (Rheological index: viscosity at 2.5 rpm/viscosity at 20 rpm).- PANGEL products must be dispersed at high shear. It is advisable to prepare the plastisol by pregelling the thickening agent in part of the plasticizer at a low speed to minimize air bubbles, and then the rest of the ingredients at high speed (18-25 m/s). This method also produces better rheological indeces than those obtained by direct addition of PANGEL into the plastisol.
- It is recommended to disperse PANGEL at a concentration of 10-15%. Pregels are not suitable for use in higher concentrations because particles do not disperse adequately and the results are generally inferior (Figure 2).
- Sinergistic behavior of Pangel® S9 (4%) and PAA (1%)
- X Ray Difractogram
- Viscosities (5 rpm) at zero time.
- Figure 1 shows the comparative results obtained for the organic and mineral thickeners. Thicken- ing effect of 4-6 p.b.w. of Pangel® S9 is equiva- lent to that obtained with 2 p.b.w of organics, with a similar pseudoplastic behaviour too. Also rheological results at 7 and 30 days are similar. No syneresis is observed after 30 days, being the aspect of the gel good. The colour is cream with Pangel® S9 and white when organics are used.
- Considering these results, the use of Pangel® S9 as alternative thickeners to organics is also convenient economically.
- Effect of Shear on Pangel® S9 efficiency
Packaging & Availability
Storage & Handling
- Shelf Life
- 2 years
- Storage Condition
Stored in dry place protected from humidity and preserved in original package