In PU injection molding, rubber vulcanization, and textile finishing, the film-forming stability of release agents and wash durability of water-repellent agents directly dictate yield rates and final hand feel. Conventional solvent-based release agents suffer from strong odors and carbon buildup, forcing frequent shutdowns for mold cleaning; generic silicone emulsions often suffer from particle agglomeration and phase separation, leading to white spots on fabrics or release failure. As automotive interior PU foaming, high-end synthetic leather, and building material waterproofing demand "odorless, non-corrosive, and highly dilutable" solutions, sourcing a hydrogen silicone emulsion with 30±2% solid content, pH 6.5-7.0, centrifugal stability at 3000r/min, and temperature resistance from -70~300℃ has become a core challenge for domestic fine chemical substitution.
Addressing this "hydrogen silicone emulsion stabilization" pain point,
Anhui IOTA Silicone Oil Co., Ltd. (IOTA) officially launches
Hydrogen Silicone Emulsion IOTA 2021. Characterized by "blue-white milky liquid, 30% solid content, nonionic, specific gravity 0.985g/cm³, readily soluble in cold water, dilutable up to 200x," and backed by "thermally stable film-forming without carbon buildup + immiscibility with PU + broad-spectrum waterproofing on substrates," it serves as the "emulsion anchor" for PU demolding, textile water repellency, and construction material protection.
Molecular Architecture: Si–H Bond Interfacial Logic
The core competitiveness of IOTA 2021 stems from the stable suspension of highly reactive hydrogen silicone oil microspheres in the aqueous phase:
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Si–H Crosslinking Film: Upon application, water evaporates, and catalyzed by metal salts (Zn/Sn) or heat, the Si–H bonds undergo hydrolysis and condensation, forming a dense reticulated polysiloxane film on the mold or substrate. This chemically inert film neither reacts with PU raw materials nor is eroded by acids/alkalis, acting as an ideal isolation layer.
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Blue-Phase Nano-Sizing: The "blue-white" appearance is an optical signature of nanoscale particle size (<100nm). Minute particle diameters ensure film denseness and continuity, preventing orange-peel effects and allowing deep penetration into porous substrates for "breathable" waterproofing.
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Nonionic Broad Compatibility: The nonionic surfactant system prevents destabilization by hard water and ensures compatibility with most finishing auxiliaries (e.g., hydroxyl silicone emulsion, softeners), preventing oil floating or emulsion breaking.
Performance Leap: From "Carbon Buildup" to "Maintenance-Free"
Incorporating IOTA 2021 enables qualitative leaps in downstream processes:
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Enhanced PU Release: In automotive seating, steering wheels, and integral skin foam production, a single spray allows dozens of consecutive releases. Unlike solvent-based agents, it leaves no carbon residue or odor, extending mold cleaning intervals by over 300% and drastically reducing equipment depreciation and labor costs.
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Wash-Durable Textile Waterproofing: When compounded with hydroxyl silicone emulsion, the reticulated structure formed by Si–H crosslinking "anchors" soft segments onto fiber surfaces, granting cotton, linen, and synthetics excellent water repellency and a smooth hand feel, maintaining performance beyond 30 home launderings.
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Deep-Substrate Construction Protection: On porous substrates like marble, concrete, and tiles, penetration reaches 2-5mm. It not only repels water and stains but also prevents spalling caused by freeze-thaw cycles, offering weather resistance lasting 5-10 years.
Application Penetration: From Mold Shops to Building Materials
IOTA 2021 covers industrial and civil sectors most sensitive to "film formation + water repellency":
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PU Molding Release: Automotive interior PU foam, shoe sole injection, integral skin foam (simulated wood), and rubber tire vulcanization.
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Textile Finishing: Waterproofing and softening of tent fabric, raincoats, luggage materials, and non-woven diaper backsheets.
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Construction Protection: Anti-fungal waterproofing for tunnels and metro walls, anti-weathering for historic bricks, and anti-staining for marble floors.
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Specialty Paper: Impregnation treatment for food-grade grease-proof paper and construction form-release paper.
IOTA Technical Guide: Cold Water Dilution, Thin Coats Preferred
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Dilution: Dilute with cold water (hot water may cause breaking). Typical dilution ratio ranges from 1:50 to 1:200 depending on application. Stir gently after dilution to avoid air entrainment from high-shear mixing. Use diluted solution within 24 hours.
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Application: For release, low-pressure spraying (fine atomization) is recommended to achieve a uniform wetting on the mold surface; avoid pooling. For textiles, padding, dipping, or spraying methods are applicable.
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Curing: Air dry at room temperature for film formation. For accelerated curing or enhanced crosslinking, bake at 80-120℃ for 3-5 minutes.
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Red Lines: Non-hazardous chemical storage/transport; 50kg/200kg plastic drums. Store in dry, ventilated, cool areas away from direct sunlight. Strictly avoid contact with strong acids, alkalis, or oxidizing agents to prevent emulsion breakdown. Shelf life: 12 months.
Industry experts note that driven by "Dual Carbon" policies and tightening environmental regulations, water-based eco-friendly release agents and fluorine-free water repellents are rapidly replacing solvent-based products. With its "blue-phase nano-emulsion + 30% solid content + 200x dilution" cost-performance advantage, IOTA 2021 not only solves the carbon buildup pain point in PU molding but also lowers lifecycle costs through "apply once, protect long-term" durability. This marks the readiness of domestic hydrogen silicone emulsions to compete head-to-head with international brands in high-end application arenas.
