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    Styrene Acrylonitrile (SAN)

    Styrene Acrylonitrile (SAN) in Tradeasia

    IUPAC Name


    Cas Number


    HS Code



    (C8H8)n - (C3H3N)m

    Basic Info


    Transparent & glassy

    Common Names

    Styrene-acrylonitrile Copolymer, Styrene-acrylonitrile Resin, Styrene-nitrile


    25 Kg Bag

    Brief Overview

    Styrene acrylonitrile (SAN) is a thermoplastic polymer that is composed of styrene and acrylonitrile monomers. It is a transparent material with a glass-like appearance that is known for its high stiffness, hardness, and chemical resistance. SAN is commonly used in applications that require transparency, such as lenses, lighting fixtures, and medical devices. It is also used in household items such as kitchenware and cosmetic containers. SAN can be easily processed using injection molding, extrusion, or blow molding, making it a popular choice for a wide range of applications. Overall, SAN is a versatile polymer that offers a unique combination of properties and is widely used in various industries.

    Manufacturing Process

    Styrene acrylonitrile (SAN) is typically produced through a process known as emulsion polymerization. In this process, styrene and acrylonitrile monomers are mixed with water and a surfactant to form an emulsion. The emulsion is then heated and agitated, which causes the monomers to polymerize and form small particles called latex.

    Once the latex has been formed, it is coagulated using a coagulating agent such as magnesium chloride or calcium nitrate. The coagulated latex is then washed and dried to remove any residual water and surfactant. The resulting powder or pellets can then be melted and shaped into various forms using processes such as injection molding, extrusion, or blow molding.

    The exact manufacturing process for SAN can vary depending on the specific formulation of the polymer and the desired properties of the final product. Some variations of the process may involve the use of different monomer ratios, different surfactants, or additional additives to enhance certain properties of the polymer.


    Styrene acrylonitrile (SAN) has a wide range of applications in various industries. Some common applications include:

    1. Automotive: SAN is used in the production of automotive parts such as interior trim components, instrument panels, and door panels.

    2. Consumer goods: SAN is used in the production of various consumer goods such as cosmetic containers, appliances, and household items like kitchenware and storage containers.

    3. Medical devices: SAN is used in the production of medical devices such as syringes, IV components, and medical equipment housings.

    4. Electronics: SAN is used in the production of electronic components such as computer and mobile phone housings, switches, and connectors.

    5. Lighting: SAN is used in the production of lighting fixtures and lenses due to its optical clarity and heat resistance.

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