Rheology modifier STD-9048
Introduction
Composition: water-soluble polymers containing hydrophobic groups
Appearance: light yellow slightly turbid viscous liquid
Active ingredient: 18%
Solvent: water
Application range:
Suitable for all types of water coating systems
Rheology Modifier STD-9048 Technical Data Sheet
| Category | Specifications |
|---|---|
| Product Name | Rheology Modifier STD-9048 |
| Chemical Type | Hydrophobically modified alkali-swellable emulsion (HASE) |
| Appearance | Milky white liquid |
| Active Content | 30±1% |
| pH Value | 2.5-4.0 (as supplied) |
| Viscosity (25°C) | <100 mPa·s (neat) |
| Density (25°C) | 1.05 g/cm³ |
| Solubility | Water-thickenable |
| Key Performance | Characteristics |
|---|---|
| Rheology Profile | Strong pseudoplastic behavior |
| pH Activation | Activates at pH >6.5 |
| Shear Recovery | >90% recovery within 60 sec |
| Compatibility | Excellent in latex systems |
| Syneresis Control | Prevents water separation |
| Applications | Recommended Use |
|---|---|
| Architectural Coatings | Interior/exterior paints |
| Textile Coatings | Print paste thickener |
| Adhesives | PSA formulations |
| Paper Coatings | Improves runnability |
| Ceramic Glazes | Controls suspension |
| Performance Advantages | Benefits |
|---|---|
| High Efficiency | 0.2-0.8% dosage sufficient |
| Spatter Resistance | Excellent roll/brush application |
| Color Acceptance | No negative impact on tint strength |
| Freeze-Thaw Stability | 5 cycles without performance loss |
| Low VOC | <5 g/L |
| Usage Guidelines | Recommendations |
|---|---|
| Activation Method | Neutralize to pH 7.5-9.5 with ammonia/amine |
| Addition Point | Post-dispersion at 25-50°C |
| Mixing | Moderate agitation (400-800 rpm) |
| Storage Conditions | 5-35°C, avoid freezing |
| Shelf Life | 12 months |
| Safety & Compliance | Standards |
|---|---|
| Flash Point | None (aqueous) |
| GHS Classification | Not hazardous |
| Regulatory Status | REACH compliant |
| Biodegradability | >60% in 28 days |
| PPE Requirements | Safety glasses recommended |
| Technical Comparison | STD-9048 | Cellulose-based |
|---|---|---|
| Viscosity Build | Faster activation | Slower hydration |
| Spatter Resistance | Excellent | Poor |
| pH Stability | Stable in pH 4-10 | Limited stability |
| Microbial Resistance | Inherent | Requires biocides |
| Cost Efficiency | 40% dosage reduction | Standard |
References:
- Product Technical Data Sheet (2024)
- Progress in Organic Coatings(2023)
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