STD32MW01 Modified cellulose ether
Category：Paint chemicals
Introduction
It can significantly improve the construction performance and mechanical properties of putty, and make the putty has the characteristics of smooth construction, easy sanding, high strength and so on.
Product Overview
STD32MW01 is a high-purity modified cellulose ether engineered for specialized applications requiring precise viscosity control and enhanced performance stability. This product exhibits superior water solubility, thermal resistance, and mechanical stability across a wide pH range.
Basic Physical Properties
| Property | Specification | Test Method |
|---|---|---|
| Appearance | White to off-white free-flowing powder | Visual |
| Bulk Density | 0.35-0.45 g/cm³ | ISO 697 |
| Particle Size | 98% through 80 mesh | Sieve analysis |
| Moisture Content | ≤4.0% | Karl Fischer |
| Ash Content | ≤1.5% | ISO 2144 |
Solution Properties (2% Aqueous Solution)
| Parameter | Typical Value | Conditions |
|---|---|---|
| Viscosity | 3200±200 mPa·s | 20°C, Brookfield RV, spindle #3. 20 rpm |
| pH Value | 6.5-8.0 | 25°C, pH meter |
| Surface Tension | 45-55 mN/m | Du Noüy ring method |
| Gelation Temperature | >85°C | Visual gel point |
Key Performance Advantages
| Feature | Benefit |
|---|---|
| High viscosity efficiency | Lower dosage required for equivalent performance |
| Excellent salt tolerance | Stable in high-ionic-strength solutions |
| Pseudoplastic rheology | Superior flow and leveling properties |
| Thermal reversibility | Maintains properties after heating-cooling cycles |
| Non-ionic character | Compatible with most ionic systems |
Recommended Applications & Dosages
| Application | Function | Typical Use Level (%) |
|---|---|---|
| Cement-based mortars | Water retention, workability enhancer | 0.1-0.3 |
| Gypsum products | Set time regulator, strength enhancer | 0.2-0.5 |
| Waterborne coatings | Thickener, anti-sag agent | 0.3-0.8 |
| Ceramic glazes | Suspension stabilizer | 0.5-1.2 |
| Personal care | Viscosity modifier | 0.5-2.0 |
Storage & Handling Guidelines
| Parameter | Requirement |
|---|---|
| Storage conditions | Dry environment (<60% RH), <30°C |
| Shelf life | 24 months in original sealed packaging |
| Handling precautions | Use dust control measures, avoid inhalation |
| Packaging | 25 kg multi-layer moisture-proof bags |
| Safety classification | Non-hazardous material |
Technical Notes
For optimal dissolution, disperse in cold water before heating
Viscosity varies with concentration, temperature, and mixing method
Compatible with most common construction additives
Not recommended for use in strong acid (pH<3) or alkaline (pH>12) environments
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