Bisphenol A Cyanate Ester Cas 1156-51-0

Chemical Name: Bisphenol A cyanate est
CAS No.: 1156-51-0
Appearance:White powder crystal
Assay:≥98.0%
Sample: Available
related documents:

COA of 2,2-Bis-(4-cyanatophenyl)propane
TDS of 2,2-Bis-(4-cyanatophenyl)propane

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Table of Contents

Bisphenol A Cyanate Ester (CAS 1156-51-0) Overview

Chemical Specifications

Parameter Specification
CAS Number 1156-51-0
Molecular Formula C17H14N2O2
Molecular Weight 278.31 g/mol
Appearance White crystalline powder
Purity ≥99.5%
Density 1.30 g/cm³
Melting Point 78-82°C
Solubility Soluble in acetone, DMF; insoluble in water

Performance Comparison with Competing Materials

Property Bisphenol A Cyanate Ester Epoxy Resins Polyimide
Glass Transition Temp (Tg) 280-320°C 120-250°C 250-400°C
Dielectric Constant (1MHz) 2.8-3.2 3.5-4.5 3.0-3.5
Moisture Absorption <0.5% 1.2-2.5% 0.8-1.5%
Cure Temperature 180-220°C 80-150°C 250-350°C

Industrial Applications

1. Advanced Composites

Used in aerospace structural components requiring high strength-to-weight ratios and thermal stability up to 300°C.

2. Electronics Encapsulation

Ultra-low dielectric loss (0.002-0.005 at 10 GHz) makes it ideal for 5G communication substrates and radar systems.

3. Adhesive Formulations

Provides peel strength exceeding 15 N/mm in bonding carbon fiber reinforced polymers (CFRP).

Operational Protocols

Processing Recommendations

Stage Parameters
Mixing Use anhydrous solvents under <40% RH conditions
Curing Stage 1: 150°C/2hr → Stage 2: 220°C/4hr
Post-Cure 240°C/2hr for optimal crosslinking

Safety Precautions

  • Wear NIOSH-approved P100 respirator during powder handling
  • Maintain workshop ventilation ≥10 air changes/hour

Client Implementation Cases

Case 1: Satellite Antenna Manufacturer

Client: Leading European aerospace contractor
Challenge: Required dielectric material stable across -180°C to +200°C
Solution: Developed cyanate ester composite with 0.003 dielectric loss at 30 GHz
Outcome: 22% signal loss reduction vs. previous epoxy-based systems

Case 2: Automotive Radar Producer

Client: Tier-1 automotive electronics supplier
Challenge: Moisture-induced circuit degradation in ADAS systems
Solution: Implemented 0.35mm cyanate ester encapsulation layer
Result: Passed 2000hr 85°C/85% RH testing without capacitance drift

Technical Consultation & Sample Requests

For formulation assistance or material testing data:
Email: info@vivalr.com
Tel: (86) 15866781826
Provide your application requirements for customized recommendations.

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