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Premium Phenolic Resins: Versatile Thermosetting Polymers for High - Performance Applications

Phenolic resins, derived from the condensation of phenol (C₆H₅OH) and formaldehyde (HCHO), are a class of thermosetting polymers renowned for their exceptional heat resistance, mechanical strength, and chemical durability. Available in two primary types—novolac resins (linear, thermoplastic, requiring a curing agent) and resole resins (branched, thermosetting, self-curing)—they serve as critical materials in industries ranging from automotive and aerospace to electronics and construction.

    Major Application Fields

    1. Core Applications in Industrial Manufacturing
    Phenolic resins are prized for their ability to form rigid, dimensionally stable structures under heat and pressure:
    Composites and Laminates:
    Aerospace: Used in aircraft interior panels, engine components, and thermal insulation due to their low smoke emission and flame resistance (e.g., FAR 25.853 compliance for commercial aircraft).
    Marine: In boat hulls and decking, phenolic composites resist water absorption and corrosion, outperforming traditional fiberglass in saltwater environments.
    Foundry and Mold Making:
    Novolac resins, combined with hexamethylenetetramine, are used in sand casting for automotive engine parts (e.g., cylinder heads). Their high thermal stability ensures precise mold replication at casting temperatures exceeding 1,500°C.

    2. Electronics and Electrical Industry
    Printed Circuit Boards (PCBs):
    Resole resins are integral to epoxy-phenolic laminates in PCBs, providing high dielectric strength and dimensional stability for high-frequency applications (e.g., 5G communication equipment).
    Electrical Insulation:
    Molded phenolic parts (e.g., switchgear components, terminal blocks) offer excellent arc resistance and thermal stability, meeting UL 94 V-0 flammability standards for electrical safety.

    3. Automotive and Transportation Sector
    Under-the-Hood Components:
    Phenolic resins are used in clutch plates, brake pads, and transmission parts due to their resistance to heat (up to 250°C) and mechanical stress. For example, in European automotive plants, phenolic-based friction materials reduce brake fade in high-performance vehicles.
    Lightweight Composites:
    Reinforced with glass or carbon fiber, phenolic composites are used in truck cabins and train interiors to reduce weight while maintaining structural integrity and fire safety (e.g., EN 45545-2 compliance for rail transport).

    4. Construction and Building Materials
    Fire-Retardant Coatings:
    Phenolic resins are formulated into intumescent paints that expand to form a protective char layer at high temperatures, delaying structural collapse in buildings (e.g., commercial skyscrapers in Asia).
    Insulation Panels:
    Phenolic foam, with a thermal conductivity of 0.02 W/m·K, is used in residential and industrial insulation, offering superior fire resistance compared to polyurethane foam.
    Adhesives and Sealants:
    Phenolic-based adhesives bond wood, metal, and ceramics in construction applications (e.g., laminated beams in modular housing), providing long-term durability and resistance to moisture.

    5. Consumer Goods and Specialty Applications
    Kitchen and Bathroom Fixtures:
    Molded phenolic resins create durable, heat-resistant countertops, sinks, and faucet components. Their non-porous surface resists stains and chemicals, making them ideal for commercial kitchens.
    Abrasive Products:
    Resole resins bond abrasive grains (e.g., aluminum oxide, silicon carbide) in sandpapers, grinding wheels, and cutting discs, ensuring consistent performance in woodworking and metal fabrication.

    Specifications

    Product Name Propionic Acid
    Chemical Formula C3H6O2
    Molecular Weight 74.08 g/mol
    Appearance Colourless transparent liquid
    Melting Point -20.8℃
    Boiling Point 141.1℃
    Density 0.993 g/cm³
    CAS NO 79 - 09 - 4
    HS Code 29155000
    EINECS NO 201 - 176 - 3
    Application Applied in plastics, pharma, food, solvents and perfumes

    Quality Control Sheet

    Product Name Propionic Acid
    ITEM STANDARD VALUE(%) TEST VALUE(%)
    Propionic Acid Content, w/%≥ 99.5 99.9
    Density(20/20℃) 0.993-0.997 0.996
    Boiling Range/℃ 138.5-142.5 139.4-141.1
    Evaporation residue,w/%≤ 0.01 0.006
    Water,w/%≤ 0.15 0.02
    Aldehyde,w/%≤ ≤0.05  0.04
    easy oxidization,w/%≤ ≤0.05 0.01
    Pb mg/kg≤ 2.0 ≤2.0
    As mg/kg≤ 3.0 ≤3.0
    Conclusion Comply with the standards of GB 1886.210-2016

    Quality & Compliance

    Formulation Flexibility:
    Customizable for specific properties:
    High Heat Resistance: Glass transition temperature (Tg) up to 300°C for aerospace applications.
    Low Smoke Emission: Modified grades for transit and marine environments (e.g., IMO FTPC Part 1 compliant).
    Regulatory Standards:
    Meets UL, ASTM, and ISO 9001:2015 standards. Food-contact grades (e.g., phenolic resins in appliance handles) comply with FDA 21 CFR 177.1020.
    Sustainability:
    Produced using bio-based phenol derivatives (e.g., cashew nut shell liquid) in some formulations, reducing reliance on petrochemicals. Recyclable through incineration with energy recovery.

    Why Choose Our Phenolic Resins?

    Whether you need fire-resistant composites for aerospace, high-performance friction materials for automotive, or durable insulation for construction, our phenolic resins deliver unmatched reliability. With global technical support and production facilities in North America, Europe, and Asia, we offer tailored solutions—from novolac/resole blends to reinforced grades—to meet your application’s exacting demands.

    Engineer the future with Premium Phenolic Resins—where heat, chemical, and mechanical resistance redefine material performance.