Flame Retardant Deodorizer

Product Introduction

In modern polymer processing, adding flame retardants often causes severe odor issues. Under high extrusion temperatures, Bromine-Antimony systems easily degrade, releasing highly corrosive and pungent hydrogen halide acids. Halogen-free Phosphorus-Nitrogen intumescent systems emit uncomfortable ammonia and amine odors when subjected to heat and shear. Traditional fragrances vaporize instantly at high temperatures, and ordinary physical adsorbents easily cause blooming upon cooling or trigger fatal bubbles during extrusion due to moisture absorption.

To fundamentally resolve this conflict, this high-performance reactive deodorizing powder builds a three-dimensional "acid-base neutralization, empty-orbital chelation, and radical quenching" purification network. In the polymer melt, it instantly captures free acids and alkaline gases, converting them into stable macromolecular salts or complexes via irreversible chemical bonding, while offering excellent smoke suppression synergy. To overcome powder blooming and poor dispersion, it utilizes a "macromolecular homologous anchoring and nanoscale hydrophobic isolation" dual-core process. The microscopic polymer bridging medium securely locks the polar deodorizing cores within the non-polar resin continuous phase, stopping outward migration. The extremely hydrophobic nano-base ensures ultimate dispersion and absolute water-free performance during dry blending. It delivers powerful odor removal while perfectly preserving the substrate’s mechanical tensile strength, insulation, and V-0 flame-retardant standards.

Appearance

White to off-white, free-flowing ultra-fine powder

Deodorizing Principle

• In-situ Neutralization & Acid Curing: Targeting pungent halogen acids, the embedded layered inorganic microcrystalline skeleton has high ion-exchange capacity. In the melt, it instantly neutralizes free halogenic acids, forming highly stable intercalated compounds, cutting off acid-catalyzed polymer degradation.
• Empty Orbital Targeted Chelation: Targeting ammonia and amine odors from phosphorus-nitrogen systems, macromolecular organometallic coordination centers actively capture alkaline nitrogen molecules using empty orbitals, forming stable complexes with high bond energy.
• Lewis Acid Catalysis & Smoke Quenching: Special inorganic media act as Lewis acid catalytic centers, inducing the rearrangement of P/N odor intermediates into odorless macromolecules. It quenches free radicals during initial thermo-oxidative degradation, reducing both odor and smoke emission.
• Nanoscale Hydrophobic Isolation & Anchoring: Long-chain polymers with highly polar reactive ends are combined with a nanoscale hydrophobic network. The polar ends bite into the active powder, while the non-polar chains co-crystallize with the base plastic. This thermodynamic dead-lock completely blocks polar substances from blooming on the surface.

Application Areas

• Wire & Cable Industry: Deep odor purification for eco-friendly Low Smoke Zero Halogen (LSZH) cable compounds, PVC/PE flame-retardant sheathing, and EV high-voltage wire harnesses.
• Electronics & Appliances: Odor removal for flame-retardant PP/ABS/PC TV back covers, power strip casings, switch panels, and new energy battery module injection parts.
• Eco-Building Materials & Foams: Low VOC control for flame-retardant insulation boards, air ducts, and elastomer seals.

Usage Method

• Adding Method: A pure physical dry powder. Add directly into the mixing equipment along with the base resin, flame retardants, and other fillers.
• Mixing Requirements: Low to medium-speed dry blending at room temperature is sufficient. To activate the anti-blooming anchoring mechanism, the compounded material must pass through a twin-screw extruder (processing temp ≥160°C) to achieve reactive compatibility under high shear.

Reference Dosage

• Recommended Dosage: Add at 0.3% - 0.6% of the total material weight.
• Starting Test Dosage: Recommended starting point is 0.4%. For highly filled halogen-free systems with severe odors, adjust up to 0.6% - 0.8% as necessary.

Precautions

• Sealed Storage: Although highly moisture-resistant due to nanoscale hydrophobic isolation, prolonged exposure to extreme humidity may affect flowability. Tightly seal the moisture-proof bag after opening.
• Extrusion Temperature: The active ingredients must fully melt in the extruder to activate the compatibility network. The melt temperature must not be lower than 160°C.