POE / TPO Deodorizer

Product Introduction

This product is a high-performance reactive, high-light-transmittance deodorizer developed specifically for Polyolefin Elastomers (POE) and blended modification systems (like TPO, PP/POE toughened alloys). During compounding and high-temperature extrusion, POE "inherits" thermal-oxidative degradation odors from base resins and continuously releases low-molecular volatile odors (aldehydes, ketones, esters) during long-term aging. Traditional inorganic adsorbent powders cause severe light scattering, making the material look "milky" (haze) due to mismatched refractive indices. Furthermore, polar additives are easily squeezed to the surface as the elastomer cools and crystallizes, forming disastrous white frost (blooming).

To fundamentally conquer the dual world-class challenges of deodorization and anti-blooming in highly transparent elastomers, this product innovatively constructs a "homologous invisible coating and transition metal interfacial catalysis" composite purification technology. During extrusion, a customized macromolecular compatible matrix—100% homologous to the POE base—melts instantly, perfectly encapsulating the active deodorizing core and invisibly blending into the POE crystalline lattice, entirely eliminating light scattering and sealing the blooming channels. Brilliantly, the formula synergistically introduces nanoscale transition metal catalytic centers and macromolecular "molecular traps." At the microscopic phase interface, these utilize chemical empty orbitals to broadly chelate degradation odors, while the catalytic oxidation mechanism in-situ decomposes hard-to-catch aldehyde and ester small molecules. It grants POE materials the ability to actively purge odors without sacrificing any mechanical or optical performance, fully compliant with EU RoHS 2.0 and REACH regulations.

Appearance

White, free-flowing ultra-fine powder

Deodorizing Principle

• Homologous Stealth Coating & Zero Blooming: The exterior is equipped with a macromolecular compatible carrier whose molecular structure is entirely homologous to polyolefin elastomers. Under extrusion heat, it completely encapsulates the polar deodorizing core in the melt and deeply co-crystallizes with the POE matrix. This "molecular-level stealth" technology severs the physical migration path of polar additives, achieving absolute zero surface blooming while maintaining exceptional light transmittance.
• Molecular Traps & Broad-Spectrum Chelation Loop: Active anhydride groups on the carrier act as "molecular traps," actively opening rings to capture alcohol and amine small molecules. Concurrently, macromolecular metal complexes use center-atom empty orbitals to strongly chelate and capture sulfur- and nitrogen-containing odorous molecules, converting them into irreversible, stable macromolecular coordinate salts.
• Nanoscale Interfacial Catalytic Oxidation: Targeting extremely stubborn small-molecule volatiles (aldehydes, ketones, esters) from polymer degradation, nano transition metal oxides distributed evenly at the microscopic phase interface are thermally activated. They perform in-situ catalytic oxidation and ring-opening cleavage on these odors, converting them into harmless substances and actively dynamically purifying the polymer phase interface.
• Absolute Water-Free Dry Blending: Uses deeply hydrophobic nanoscale fumed silica, which is absolutely water-free and blocks moisture absorption. Acting as microscopic ball bearings, it breaks up sticky components, ensuring molecular-level dispersion in the extruder and completely eliminating white spots and micro-bubbles on the film surface.

Application Areas

• High-Clarity & New Energy Films: Eco-friendly, low-VOC odor removal for POE solar cell encapsulation films, high-transparency packaging films, and high-end medical plastics.
• Automotive Elastomer Components: Deep odor purification for heat- and oxygen-aging-resistant wiring harnesses, seals, and interior parts in engine compartments.
• Modified Elastomers & Cables: Soft-touch TPO/TPV blended elastomer components and high-voltage cable insulation/sheathing for new energy vehicles.

Usage Method

• Adding Method: A purely physical dry-blend powder. During the preparation of POE-based compounds or masterbatches, add it along with the POE base pellets into the main feed throat of the twin-screw extruder.
• Processing Requirements: No pre-drying required. Dry blend physically at room temperature. The melt temperature of the twin-screw extruder must reach 160°C - 210°C. Only under high heat and strong shear can the compatibilizer's active groups effectively coat the polar deodorizing components and achieve homologous fusion with the base resin; otherwise, severe haze and blooming will occur.

Reference Dosage

• Recommended Dosage: 0.3% of the total POE/TPO material weight.
• Starting Test Dosage: Standard high-clarity POE systems should start sampling at 0.3%. If blending large amounts of complex odorous recycled PP/PE, cautiously increase to 0.5% for optimization. Do not overdose (e.g., >1.0%), as breaking the polyolefin crystalline balance will affect light transmittance.

Precautions

• Optical Performance Guarantee: Strictly follow the recommended dosage. The homologous stealth coating ensures no impact on POE light transmittance or haze. Processing at too low a temperature will cause poor dispersion and haze.
• Strict Moisture Sealing: Contains an ultra-fine nano-purification skeleton. After opening, tightly seal the moisture-proof inner bag quickly and store in a cool, dry place. Prolonged exposure causes moisture absorption, leading to clumping or micro-bubbles during extrusion.