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High Heat Resistance Bakelite Parts Supplier

  • otsed talex
    May 22, 2019
    We are surrounded by objects, most of which, some way or the other
    have a polymer associated with them. The ease of moulding polymers into
    different shapes and their relatively low cost of production has been The main
    reason for their universal usage. As such, Bakelite is one of the commercial
    manufactured polymers that we witness in our daily lives.
    Bakelite is the
    commercial name for the polymer obtained by the polymerization of phenol and
    formaldehyde. These are one of the oldest polymers that were synthesized by man.
    Phenol is made to react with formaldehyde. The condensation reaction of the two
    reactants in a controlled acidic or Basic medium results in the formation of
    ortho and para hydroxymethyl phenols and their derivatives.
    When the phenol
    is taken in excess and the reaction medium is made acidic, the product of the
    condensation reaction obtained is acidic. Whereas, when the quantity of
    formaldehyde taken is is acidic. Basic medium, the condensation product is known
    as resol.
    Bakelite is obtained when novolac is allowed to undergo
    cross-linking in the presence of a cross-linking agent. In general, phenol taken
    in middle acts as the cross-linking agent. Cross-linked product of phenol and
    formaldehyde have the following structure.
    Cross-linked product of phenol and
    Uses of Bakelite
    Now coming to the uses of Bakelite, since
    this element has a low electrical conductivity and high heat resistance it can
    be used in manufacturing electrical switches and machine parts of electrical
    systems. It is a thermosetting polymer and Bakelite has high strength meaning it
    basically retains its Form even after extensive moulding. Phenolic resins are
    also extensively used as adhesives and binding agents. They are further used for
    protective purposes as well as in coating industry.
    Further, Bakelite has
    been used for making the handles of variety of utensils. It is one of the most
    common and important polymers that are used to make different parts of many
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    XingHui Bakelite Parts supplier