Rheology modifier STD-9048

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:

1. Product Technical Data Sheet (2024)
2. Progress in Organic Coatings(2023)

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