【 WhatsApp】
+86-21-6420 0566
| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact Export Director now ↓ |
Brominated epoxy resin flame retardant is an epoxy resin flame retardant with high bromine content. It can be used in various engineering plastics such as PP, PA, PE, PS, ABS, PET and PBT, etc. The thermal stability, chemical resistance and dimensional stability of the finished products after the reaction are better than those of the traditional flame retardants (TBBA).
Brominated Epoxy Flame Retardant: Overview and Key Properties
| Category | Details |
|---|---|
| Chemical Type | Brominated aromatic epoxy oligomer |
| Bromine Content | 48-52% (typical) |
| CAS Number | Varies by product (e.g., 68928-70-1) |
| Appearance | Light yellow to amber powder/solid |
| Thermal Stability | Decomposes at 300-350°C |
Key Technical Specifications
| Property | Value/Range |
|---|---|
| Molecular Weight | 1.000-5.000 g/mol |
| Melting Point | 70-120°C (product dependent) |
| Bromine Content | 48-52 wt% |
| Epoxy Equivalent Weight | 350-450 g/eq |
| Decomposition Temp. | 300°C+ |
Flame Retardant Performance
| Parameter | Effectiveness |
|---|---|
| UL94 Rating | V0 achievable at 15-20% loading |
| LOI (%) | 28-32 (with 20% loading) |
| Synergists | Often used with Sb₂O₃ (1:2-1:3 ratio) |
Applications
| Application Area | Typical Uses |
|---|---|
| Printed Circuit Boards | FR-4 laminates |
| Electronic Encapsulation | Semiconductor packaging |
| Electrical Components | Connectors, housings |
| Automotive Electronics | Under-hood components |
Processing Characteristics
| Processing Method | Conditions |
|---|---|
| Epoxy Formulation | 120-150°C mixing |
| Curing | 150-180°C for 1-2 hours |
| Compatibilization | Requires dispersion aids |
Regulatory Status
| Regulation | Compliance Status |
|---|---|
| RoHS | Exempted for PCBs (Annex III) |
| REACH | Registered |
| TSCA | Listed |
| WEEE | Compliant with marking |
Advantages vs. Limitations
| Advantages | Limitations |
|---|---|
| Excellent FR efficiency | Potential dioxin risk during combustion |
| Good electrical properties | May affect CTI performance |
| Thermal stability | Color limitations |
Comparison with Alternatives
| Flame Retardant | Brominated Epoxy vs. |
|---|---|
| Phosphorus-based | Better electrical properties |
| Mineral FRs | Higher efficiency at lower loading |
| Polymer FRs | Better compatibility |
Environmental & Safety Data
| Parameter | Value |
|---|---|
| LD50 (oral rat) | >2.000 mg/kg |
| Biodegradability | Not readily biodegradable |
| Ecotoxicity | Moderate aquatic toxicity |
Summary
Brominated epoxy flame retardants remain essential for high-performance electronic applications despite environmental concerns. Their balance of flame retardancy (achieving UL94 V0 at 15-20% loading) and electrical properties makes them irreplaceable for PCB laminates. Ongoing developments focus on reduced environmental impact through improved thermal stability and recycling compatibility.
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
For help with solutions customized to your business needs, contact Export Director now.
With 30+ years of experience and We firmly believe that product quality is the basis of cooperation.
Chat Now
TEl
+86-21-6420 0566
