English
Español
tiếng việt
русский
Halogen-free formulation ensuring low smoke and minimal toxic gas emission during combustion.
Excellent thermal stability compatible with polycarbonate (PC) processing temperatures up to 320 °C.
High compatibility and dispersion in PC resins without compromising mechanical properties such as impact strength and tensile modulus.
Meets stringent UL 94 V-0 rating at 1.5 mm thickness in PC blends.
Non-migrating design providing long-term flame-retardant performance and surface integrity.
Electrical and electronic enclosures requiring UL 94 V-0 compliance.
LED lighting housings and lens components exposed to elevated operating temperatures.
Automotive interior parts including instrument panels and center consoles.
Medical device housings where flame safety and biocompatibility support are critical.
Public transportation interior components meeting EN 45545-2 fire safety standards.
| Chemical Type | Organophosphorus-based flame retardant |
| Product Form | Powder |
| Appearance | White to off-white free-flowing powder |
| Primary Applications | Polycarbonate (PC) and PC/ABS blends |
| Key Features | Halogen-free, UL 94 V-0 compliant, thermally stable |
| Benefits | Low smoke density, non-corrosive, no plate-out during processing |
| Density (g/cm³) | 1.35–1.45 |
| Recommended Loading Level | 8–12 wt% in PC |
Q1: What is the primary polymer compatibility of STB-FR F-531?
A: STB-FR F-531 is specifically engineered for polycarbonate (PC) and PC-based blends, offering excellent dispersion and minimal impact on optical clarity and mechanical performance.
Q2: Does STB-FR F-531 affect the processing stability or thermal degradation behavior of PC during extrusion or injection molding?
A: When used within recommended dosage ranges, STB-FR F-531 demonstrates good thermal stability up to typical PC processing temperatures and does not promote premature yellowing or molecular weight reduction under standard melt-processing conditions.
Q3: How does STB-FR F-531 contribute to flame retardancy in PC—through gas-phase or condensed-phase action?
A: STB-FR F-531 functions primarily via condensed-phase mechanisms, promoting char formation and enhancing the thermal stability of the PC matrix, while minimizing volatile combustion byproducts.
Q4: Is STB-FR F-531 suitable for applications requiring UL 94 V-0 rating in thin-wall PC parts?
A: Yes—STB-FR F-531 is formulated to support UL 94 V-0 classification in PC at appropriate loadings, particularly in wall thicknesses ≥1.5 mm, though final certification depends on full system formulation and part geometry.
Q5: What are the recommended handling and storage conditions for STB-FR F-531?
A: Store in original sealed packaging in a cool, dry environment away from direct sunlight and moisture; handle using standard industrial hygiene practices for fine organic powders, including dust control during transfer and blending.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
