Guolan New Materials (Shandong) Co., Ltd. is one of the leading manufacturers and suppliers of bisphenol a bis(diphenyl phosphate) cas 5945-33-5 in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk top-quality bisphenol a bis(diphenyl phosphate) cas 5945-33-5 from our factory.
Product Overview
Bisphenol A Bis(diphenyl phosphate) (BDP) is a high-performance halogen-free flame retardant based on the bisphenol A backbone structure. As a reactive-type flame retardant, BDP can be chemically incorporated into polymer matrices during synthesis or used as an additive in existing polymer systems. Its high molecular weight ensures excellent permanence within the polymer matrix with minimal migration, extraction, or volatilization during processing and service life.
BDP exhibits outstanding flame retardant efficiency in a wide range of engineering plastics including ABS, HIPS, SBS, PC, PPO, and epoxy resins. Its unique molecular structure provides both gas-phase and condensed-phase flame retardant mechanisms, making it particularly effective in applications requiring high flame retardancy levels without compromising mechanical properties, thermal stability, or optical clarity. BDP is also compatible with ammonium polyphosphate (APP) to form advanced intumescent flame retardant systems.
Guolan New Materials produces BDP using proprietary synthesis technology with strict quality controls to ensure consistent product quality. Our production capacity of 30,000 MT/year supports both regular orders and large-scale projects for global customers in engineering plastics, coatings, adhesives, and composite materials industries.
Technical Parameters
|
Parameter |
Specification |
|
Acid Value, mgKOH/g |
≤0.1 |
|
Moisture, w% |
≤0.1 |
|
Viscosity (70°C), mPa·s |
125-245 |
|
Chromaticity, APHA |
≤60 |
|
Density (20-25°C), g/cm³ |
1.245-1.262 |
|
BDP Content, w% |
80-85 |
|
Triphenyl Phosphate (TPP) Content, w% |
≤1.5 |
|
Phenol Content, w% |
≤0.05 |
Feature Highlights
- Halogen-Free Excellence: As a phosphorus-based flame retardant without halogen content, BDP provides effective fire protection while supporting environmental compliance and sustainability goals. Ideal for applications requiring RoHS, REACH, and TSCA compliance.
- Reactive & Additive Versatility: Can be used both as a reactive flame retardant (incorporated into polymer chains during synthesis) and as an additive flame retardant, providing formulators with flexible options for optimizing performance and cost.
- Intumescent System Compatibility: When combined with ammonium polyphosphate (APP) and char formers, BDP forms highly effective intumescent flame retardant systems that provide exceptional fire protection for epoxy resins and other thermosets.
- Excellent Thermal Stability: High thermal decomposition temperature ensures BDP remains stable during polymer processing at elevated temperatures, maintaining flame retardant effectiveness throughout the product lifecycle.
- Low Migration & Extraction: High molecular weight and chemical structure minimize migration to product surfaces and extraction by solvents or plastics, ensuring permanent flame retardant protection.
- Good Optical Properties: Available in grades with excellent color stability, suitable for applications where appearance and transparency are important such as electronic enclosures, automotive trim, and consumer products.
Industry Application Scenarios
Engineering Plastics - ABS & HIPS
BDP is widely used as a flame retardant in ABS (Acrylonitrile Butadiene Styrene) and HIPS (High Impact Polystyrene) compounds used in electrical enclosures, computer housings, telecommunications equipment, and automotive interior components. It provides effective flame retardancy while maintaining the impact strength, surface finish, and processability required by OEM specifications.
Epoxy Resin Composites
BDP is used in epoxy resin systems for electronic encapsulants, printed circuit boards (PCBs), structural adhesives, and composite materials. When used in combination with APP, it forms intumescent flame retardant systems that provide exceptional fire protection for electronics and construction applications.
PC & PPO Alloys
In polycarbonate (PC) and polyphenylene oxide (PPO) alloys, BDP provides effective flame retardancy while maintaining the high thermal stability, dimensional stability, and mechanical properties that make these engineering plastics suitable for demanding applications in automotive, electronics, and aerospace industries.
Adhesives & Sealants
BDP is used in structural adhesives, pressure-sensitive adhesives, and sealants where flame retardancy is a specification requirement. Its compatibility with various resin systems and low volatility make it suitable for high-performance adhesive formulations used in construction, automotive, and industrial applications.
FAQ
Q: What is the recommended BDP dosage for ABS flame retardancy?
A: Typical addition levels range from 5% to 15% depending on the desired flame retardancy rating and base polymer formulation.
Q: Can BDP be used in reactive epoxy resin systems?
A: Yes, BDP can be incorporated into epoxy resin systems either as an additive or reactively, providing excellent flame retardancy while maintaining mechanical properties.
Q: How does BDP perform in intumescent flame retardant systems?
A: BDP shows excellent synergy with ammonium polyphosphate (APP) in intumescent flame retardant systems, providing superior fire protection for epoxy and other thermoset materials.
Q: Is BDP suitable for food-contact compliant formulations?
A: BDP compliance with food-contact regulations should be verified on a case-by-case basis. Please consult our regulatory affairs team for specific requirements.
Q: What is the thermal stability range of BDP?
A: BDP exhibits good thermal stability up to approximately 300°C, making it suitable for processing most engineering thermoplastics at typical processing temperatures.
Q: What does the BDP content specification mean for formulators?
A: BDP content is specified at 80-85%, with triphenyl phosphate limited to 1.5% maximum and free phenol to 0.05% maximum. Controlling the TPP and phenol fractions is what keeps volatility, odour and migration low in finished engineering plastic parts.
Q: Can BDP be used as a reactive as well as an additive retardant?
A: Yes. BDP can be chemically incorporated into polymer chains during synthesis as a reactive retardant, or blended in as an additive to existing systems, giving formulators two routes to optimize performance and cost.
Why Choose Guolan New Materials
- High Molecular Weight, Low Migration: The bisphenol A backbone gives a high molecular weight that minimizes migration to product surfaces and extraction by solvents, so flame protection stays permanent rather than bleeding out over time.
- Reactive Or Additive - Your Choice: Usable both as a reactive retardant built into the polymer chain and as an additive in existing systems, which lets formulators pick the route that best fits their process and cost target.
- Proven In Intumescent Systems: Combined with ammonium polyphosphate and char formers, BDP builds highly effective intumescent systems for epoxy resins and related matrices where exceptional fire protection is specified.
- Thermally Stable Through Processing: A high decomposition temperature keeps BDP stable during elevated-temperature polymer processing, maintaining effectiveness across the product lifecycle rather than degrading in the extruder.
- Colour Stability For Visible Parts: Grades with excellent colour stability suit electronic enclosures, automotive trim and consumer products where appearance is judged as closely as performance - supported by chromaticity of 60 APHA maximum and acid value of 0.1 mgKOH/g maximum.
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