Silicone Rubber (Q) Deodorizer

Product Introduction

This product is a high-performance reactive odorless deodorizer developed specifically for High-Temperature Vulcanized (HTV), Liquid Silicone Rubber (LSR), and Room-Temperature Vulcanized (RTV) silicones. In actual processing, peroxide curing systems unavoidably decompose into pungent odor molecules like acetophenone; meanwhile, platinum addition curing systems leave trace catalytic byproduct odors due to inhibitors used for reaction rate control. Traditional polar deodorizing materials easily cause optical conflicts in the pure polysiloxane network, affecting the high-transparency texture of the final products.

To conquer the technical contradiction between "deep deodorization" and "ultimate optical compatibility", this product innovatively adopts "ultra-clean molecular design" and "nano-hydrophobic encapsulation" technologies. The formula discards all traditional carriers that cause precipitation. Instead, through the synergy of highly active micro-porous frameworks and special metal complexation centers, it accurately adsorbs and chemically fixes various odor molecules without introducing any organic extractables. Crucially, the outermost layer of the powder is wrapped in a hydrophobic protective layer that perfectly matches the silicone side-chain structure. This microscopic "hydrophobic stealth cloak" perfectly integrates the deodorizing components into the non-polar silicone macromolecular network, ensuring outstanding compatibility thermodynamically. It thoroughly purifies odors while completely preserving the excellent light transmittance and dry surface texture of high-transparency silicone products. It has zero interference with curing kinetics or biological safety, fully complying with stringent RoHS 2.0 and REACH environmental standards.

Appearance

White powder

Deodorizing Principle

• Chemical Fixation of Peroxide Byproducts: Built-in highly active solid acid micro-porous frameworks specifically enrich acetophenone molecules from peroxide decomposition. Under the high temperature of silicone curing (especially post-curing), the microscopic reaction bed induces odor molecules to undergo nucleophilic rearrangement, converting them into high-molecular-weight, non-volatile stable derivatives permanently anchored to the inorganic framework, preventing odor rebound.
• Precise Complexation in Platinum Systems: Targeting byproduct odors caused by inhibitors in platinum addition systems, the built-in macromolecular metal complexation centers use empty orbitals to precisely capture and chelate sulfur/nitrogen impurities without consuming effective crosslinking radicals or poisoning the platinum catalyst.
• Closed-loop Control of Cyclic Siloxanes: For trace cyclic siloxane volatiles produced during processing, internal special structures guide these small molecules to undergo highly controllable ring-closing or oligomerization reactions when heated, significantly raising their boiling point and completely eliminating volatility.
• Hydrophobic Encapsulation & Invisible Compatibility: A hydrophobic nano-protective layer identical to the silicone matrix is grafted outside the polar reactive core using special processes. This gives the powder perfect non-polarity and excellent compatibility macroscopically, thoroughly preventing optical scattering and ensuring the ultimate high transparency and surface purity of the silicone.

Application Areas

• Food Contact & Maternal Products: Odor removal for food-grade Liquid Silicone Rubber (LSR) baby pacifiers, post-curing deodorization for high-end silicone baking molds, low VOC purification for food conveyor belts and bottle cap seals.
• Consumer Electronics & High-end Medical: Odor elimination for medical-grade silicone tubes, deodorization for skin-friendly wearable watch bands, and anti-fogging odor treatment for VR headset seals and high-transparency window parts.
• High-Performance Industrial Products: Deodorization for new energy vehicle silicone insulation cables, odor suppression for high-temp silicone foam sponge strips, and odorless modification for high-strength RTV sealants.

Usage Method

• Adding Method: For HTV/RTV systems, add directly during the open mill or internal mixing stage. For two-component LSR, it is recommended to uniformly pre-disperse it into one component (usually the one without the platinum catalyst) before the static mixer. To achieve the most transparent and uniform optical texture, it is highly recommended to use a high-speed mixer (high-shear mixer) to pre-disperse it extremely well with other inorganic powders in the formulation.
• Mixing Requirements: Silicone processing is extremely sensitive to moisture. Because the micro-porous framework of this product is extremely dried, always maintain a dry processing environment during mixing and pre-dispersion to prevent absorbed air moisture from generating micro-bubbles inside the product during high-temperature curing.

Reference Dosage

• Recommended Dosage: 0.1% - 0.3% (based on total material weight).
• Starting Test Dosage: To achieve a perfect balance between high optical transparency and deep deodorization, we recommend uniformly starting the test at the lower limit (0.1%). Fine-tune subsequently based on the actual odor performance of the DCP peroxide or platinum addition system.

Precautions

• No Extra Organic Dispersants: This product already features a hydrophobic encapsulation compatibility mechanism. It is strictly prohibited to superfluously add conventional organic rubber lubricants to ultra-clean silicone formulations, which would destroy the cross-linking network and affect surface conditions.
• Highly Moisture-proof Storage: Contains dehydrated activated highly efficient adsorption and reaction frameworks that easily absorb environmental moisture. After opening for sampling, exhaust the air from the bag immediately, seal tightly, and strictly prevent long-term exposure to high humidity environments.