Silanol Terminated Polydimethylsiloxanes CAS 70131-67-8
CAS No:70131-67-8
Chemical Name: Silanol Terminated Polydimethylsiloxanes
Molecular Formula: HOSi
Molecular Weight:45.09284
Appearance: Colorless transparent flow liquid
related documents:
TDS of Silanol Terminated Silicone Polymer
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Silanol Terminated Polydimethylsiloxanes (CAS 70131-67-8): Comprehensive Product Guide
Table of Contents
1. Product Overview & Specifications
| Parameter | Specification | Competitor A | Competitor B |
|---|---|---|---|
| CAS Number | 70131-67-8 | N/A | Alternative variants |
| Molecular Formula | HO[Si(CH3)2O]nH | Similar structure | Lower purity grades |
| Viscosity (25°C) | 5,000-18,000 cSt | Limited range | 3,000-15,000 cSt |
| Thermal Stability | -60°C to 200°C | Reduced range | -50°C to 180°C |
2. Key Applications
Core Functional Benefits:
- Textile Manufacturing: Superior fabric softener with permanent hydrophobicity
- Pharmaceuticals: Medical-grade lubricant for syringes and implants
- Cosmetics: Non-greasy skin conditioning agent in lotions
- Industrial Coatings: Water-repellent additive with UV resistance
3. Technical Advantages
Performance Comparison:
| Feature | Our Product | Standard PDMS |
|---|---|---|
| Surface Tension | 20.1 mN/m | 21.4 mN/m |
| Oxidative Stability | 300+ hours @ 150°C | 220 hours @ 150°C |
| Reactivity | Controlled terminal silanol groups | Random functionalization |
4. Industry Use Cases
Automotive Sector:
Implemented as dielectric fluid in electric vehicle battery thermal management systems, reducing thermal runaway risks by 40%.
Medical Devices:
FDA-approved formulation used in 12 major catheter production lines, demonstrating 0% silicone migration during accelerated aging tests.
5. Client Success Stories
Case Study 1: Textile Manufacturer (Shanghai)
Challenge: Reduce energy consumption in fabric drying process.
Solution: 2% additive in finishing agents.
Result: 22% faster drying times, 15% energy savings.
Case Study 2: Pharmaceutical Producer (Wuhan)
Challenge: Prevent drug adhesion in transdermal patches.
Solution: 0.8% silicone matrix modification.
Result: 99.3% drug release efficiency achieved.
6. Request Customized Solutions
Technical Support Team Available:
Email: info@vivalr.com
Phone: (86) 15866781826
Submit formulation requirements for tailored viscosity profiles and compliance documentation.
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