Karenz MT PE1 (CAS 31775-89-0): Comprehensive User Guide for UV Absorber Applications
Table of Contents
1. Product Overview & Technical Specifications
Chemical Name: 2-(2H-Benzotriazol-2-yl)-p-cresol
CAS No: 31775-89-0
Molecular Formula: C₁₃H₁₁N₃O
| Parameter | Karenz MT PE1 | Competitor A | Competitor B |
|---|---|---|---|
| Molecular Weight | 225.25 g/mol | 230.30 g/mol | 218.20 g/mol |
| UV Absorption Range | 280-380 nm | 270-360 nm | 290-370 nm |
| Thermal Stability | >300°C | 280°C | 260°C |
2. Key Applications & Functional Advantages
Core Industrial Uses:
- Polymer Stabilization: Prevents photo-degradation in PP, PE, PVC, and engineering plastics
- Coatings Protection: Extends service life of automotive and architectural coatings by 40-60%
- Adhesive Formulations: Maintains bond strength under prolonged UV exposure
- Textile Treatments: Enhances UV resistance in synthetic fibers
3. Implementation Guidelines
Recommended Dosages:
| Application | Concentration Range | Optimal Processing Temp |
|---|---|---|
| Polyolefins | 0.3-0.7% w/w | 190-230°C |
| Automotive Coatings | 1.0-2.5% w/w | Room Temperature |
4. Industry-Specific Use Cases
Case Study 1: PVC Window Profiles
Manufacturer achieved 15-year weatherability certification by incorporating 0.5% Karenz MT PE1, reducing surface chalking by 78% compared to traditional stabilizers.
5. Verified Customer Success Stories
ABC Plastics Co., Ltd. (Guangdong, China)
Challenge: Premature yellowing in outdoor PP containers
Solution: 0.45% Karenz MT PE1 masterbatch
Result: 62% reduction in color shift after 2,000 hrs QUV testing
XYZ Coatings Inc. (Ohio, USA)
Challenge: Coating degradation on agricultural equipment
Solution: 1.8% Karenz MT PE1 in polyurethane system
Result: Extended maintenance intervals from 18 to 42 months
6. Request Customized Solutions
Contact our technical team for formulation optimization:
Email: info@vivalr.com
Tel: (86) 15866781826
Ask about our free sample program and technical documentation package.
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