Hydroxy Propyl Methyl Cellulose Fine Powder for Construction Materials
Product Overview
Hydroxypropyl Methyl Cellulose (HPMC) Fine Powder represents the pinnacle of cellulose ether technology, engineered to redefine construction material performance. With a specialized molecular structure featuring 28-30% methoxy substitution and 7-12% hydroxypropyl substitution, this ultra-refined additive delivers unmatched water retention, workability enhancement, and interfacial adhesion in cementitious systems. Certified for global architectural applications, HPMC Fine Powder meets the rigorous demands of modern construction while adhering to ISO 9001 quality standards and GreenGuard sustainability certifications.
Technical Specifications
Physicochemical Properties
| Parameter | Specification | Test Method |
|---|---|---|
| Viscosity (20°C, 2% sol.) | 40,000-200,000 mPa·s | Brookfield LV/RV |
| Moisture Content | ≤5.0% | ISO 287 |
| Ash Content | ≤1.5% | ISO 247 |
| pH (1% aqueous solution) | 6.0-8.0 | ISO 4316 |
| Particle Size (D50) | 80-120 μm | Laser Diffraction |
| Gelation Temperature | 60-90°C | Custom Rheometry |
Functional Performance
- Water Retention: ≥98% at 23°C/50% RH (EN 13480)
- Open Time Extension: 45-60 minutes in tile adhesives
- Adhesion Strength: ≥2.0 MPa (EN 12004)
- Slump Retention: ≤5 mm loss over 90 minutes (ASTM C1437)
Manufacturing Excellence
Produced through Advanced Alkaline Etherification Technology:
- Base Material: Sustainably sourced α-cellulose (≥98.5% purity)
- Reaction Control:
- Continuous gas-phase methylation at 60-80°C
- Hydroxypropylation under 10-15 bar pressure
- Purification Process:
- Multi-stage solvent extraction (ethanol/acetone)
- Ultrafiltration to remove DS <1.8 byproducts
- Drying Innovation:
- Spray-dried granules with <1% oversized particles
- Anti-caking agent-free stabilization
Quality Assurance:
- ±3% viscosity batch consistency
- <0.1% heavy metal content (Pb, Cd, Hg)
- Full traceability from pulp source to packaging
Multi-Application Performance
1. Tile Adhesive Systems
- Extended Open Time: Maintains 2.5 N/mm² adhesion after 40-minute exposure
- Non-Sag Properties: Enables vertical application up to 8 mm thickness
- Substrate Compatibility:
- Concrete: 100% adhesion retention after 28-day cure
- PVC: 0.8 MPa bond strength without primers
2. Dry-Mix Mortars
- Workability Optimization:
- 35-40% reduction in mixing water demand
- 50% faster tool cleanup vs. conventional HPMC
- Crack Prevention:
- 0.02 mm/m shrinkage control (EN 12617-4)
- 90% reduction in plastic settlement
3. Cement-Based Plasters
- Application Smoothness: Achieves N4-N5 surface finish (EN 13914)
- Moisture Regulation:
- 7-day controlled hydration cycle
- Prevents efflorescence under 85% humidity
4. Self-Leveling Compounds
- Rheological Precision:
- 120-150 mm flow diameter (EN 13813)
- <10 sec T500 flow time for rapid deployment
- Early Strength Development:
- 15 MPa compressive strength at 24 hours
- 80% final strength achieved in 3 days
5. EIFS (Exterior Insulation Systems)
- Impact Resistance: Passes 25 J/cm² hail test (ETAG 004)
- Waterproofing: 0.02 kg/(m²·h0.5) vapor permeability
- Freeze-Thaw Stability: 50 cycles without delamination
Competitive Advantages
Performance Leadership
- 40% higher water retention vs. standard HPMC grades
- 60% faster dissolution in cold water (≤15°C)
- 0.5% dosage achieves 98% sag resistance
Economic Value
- Reduces material waste through precise slump control
- Eliminates need for separate retarders/plasticizers
- Enables 20% cement reduction in lean mixes
Sustainability Edge
- 100% biodegradable within 180 days (OECD 301B)
- 35% lower carbon footprint vs. petrochemical additives
- Zero VOCs (EN 16516 compliance)
Quality Certifications
- Construction Standards:
- EN 934-3 (Admixtures for Masonry Mortar)
- ASTM C387 (Mortar & Grout Compatibility)
- GB/T 29594 (Chinese Construction Additive Standard)
- Safety Compliance:
- REACH Annex XVII (EU Chemical Safety)
- FDA 21 CFR 175.300 (Indirect Food Contact)
- RoHS 3 (2015/863/EU)
Smart Packaging Solutions
- Standard Options:
- 25 kg multi-layer kraft paper bags (0.03% moisture ingress)
- 500 kg FIBCs with UV-resistant liners
- Advanced Features:
- RFID-tracked batches for inventory management
- Humidity indicator cards in premium packaging
- Pre-measured water-soluble sachets for batch mixing
Technical Support Services
- Formulation Optimization: Lab-scale trials with rheology profiling
- Troubleshooting: On-site application diagnostics
- Regulatory Guidance: Global compliance documentation packages
- Custom Development:
- Temperature-specific viscosity grades (-10°C to 50°C)
- Accelerated setting variants for rapid repairs
Hydroxypropyl Methyl Cellulose Fine Powder stands as the cornerstone of modern construction chemistry, combining millennia of cellulose science with cutting-edge modification technology. Our global network of material scientists provides 24/7 application support, ensuring optimal performance in your specific climatic and compositional conditions.
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| Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
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Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
|
Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
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