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Tert-Butyl Peroxybenzoate 80% Solution - China Suppliers and Factory for Polymerization and Crosslinking Applications

TBPB is a highly effective initiator specifically designed for the polymerization of ethylene under high-pressure conditions, suitable for both autoclave and tubular processes. As a leading product from top China suppliers, it ensures enhanced performance and reliability. Additionally, TBPB is ideal for the crosslinking of EPDM rubber compounds at ambient temperatures, achieving optimal results within a few weeks. Discover the advantages of sourcing TBPB from our trusted factory, where quality and innovation meet to support your polymerization and rubber compound needs

    Half Life Data

    TBPB 80% product image
    TBPB 80%
    Chemical name Tert-Butyl peroxybenzoate 80%
    Molecular formula C11H14O3
    Molecular weight 194.23
    CAS NO. 614-45-9
    UN NO. 3103
    EINECS. 210-382-2

    Specification

    Appearance clear liquid
    Assay 78% min.
    Color 50 Pt-Co max
    tert-Butyl hydroperoxide 1000 mg/kg max
    Inorganic + organic hydrolyzable chloride 50 mg/kg max.

    Package and Storage

    Standard packaging size for TBPB is 25 kg net or 180kg net. Smaller packaging size is available on request.

    Applications

    Styrene polymerization

    TBPB may be utilized for the polymerization and copolymerization of styrene within the 100-140℃ temperature range. The temperature is gradually raised during the polymerization process.

    Acrylates and methacrylates polymerization

    TBPB can serve as an initiator for the solution (co)polymerization of acrylates and methacrylates at temperatures ranging from 100 to 170℃, particularly for coatings. It can also be used as an initiator for the bulk and suspension (co)polymerization of acrylates and methacrylates.

    Ethylene polymerization

    TBPB is an effective initiator for the polymerization of ethylene under high pressure in both autoclave and tubular processes. Combinations with other peroxides are employed to achieve a wide range of polymerization temperatures. TBPB exhibits activity within the 220-270℃ temperature range, depending on the reaction conditions.

    Other uses

    TBPB can also be employed for the (co)polymerization of acrylonitrile and vinyl acetate.

    Crosslinking peroxides

    TBPB is suitable for crosslinking EPDM rubber compounds at ambient temperature over several weeks. Rubber compounds containing TBPB offer a balance between processing safety and rapid curing.

    Peroxides for thermoset resins

    Tert-butyl peroxybenzoate, an aromatic perester, is utilized for curing unsaturated polyester resins at elevated temperatures. TBPB is the preferred curing agent for UP resin-based Hot Press Moulding formulations (SMC, BMC, ZMC, etc.) within the 120-170℃ temperature range.

    Frequently Asked Questions (FAQ)

    What are the chemical identifiers for TBPB 80%?

    TBPB 80% (Tert-Butyl peroxybenzoate 80%) has a molecular formula of C11H14O3, a molecular weight of 194.23, a CAS number of 614-45-9, and a UN number of 3103.

    What are the key specifications of TBPB 80%?

    TBPB 80% is a clear liquid with a minimum assay of 78%. It has a maximum color specification of 50 Pt-Co, a maximum of 1000 mg/kg of tert-butyl hydroperoxide, and a maximum of 50 mg/kg of inorganic + organic hydrolyzable chloride.

    How is TBPB packaged and stored?

    The standard packaging size for TBPB is 25 kg net or 180 kg net. Smaller packaging sizes can also be provided upon request to meet specific storage requirements.

    What is the application temperature range for styrene and acrylate polymerization?

    For styrene polymerization, TBPB is utilized within the 100-140℃ range. For acrylates and methacrylates polymerization, it serves as an initiator at temperatures ranging from 100 to 170℃, particularly for coatings, bulk, and suspension polymerization.

    How does TBPB perform in crosslinking EPDM rubber?

    TBPB is suitable for crosslinking EPDM rubber compounds at ambient temperatures over several weeks. It offers an excellent balance between processing safety and rapid curing speed.

    Why is TBPB used for curing unsaturated polyester (UP) resins?

    As an aromatic perester, TBPB is the preferred curing agent for UP resin-based Hot Press Moulding formulations (SMC, BMC, ZMC, etc.) at elevated temperatures within the 120-170℃ range.

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