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Low Toxicity Phenol Formaldehyde Resin Acid Resistance For Brake Shoe Lining Material

Categories Phenol Formaldehyde Resin
Brand Name: HONINGLITE
Model Number: F2185
Place of Origin: CHINA
MOQ: 1000KGS
Price: Negotiation
Payment Terms: T/T, L/C, D/P
Supply Ability: 5000TONS PRT MONTH
Packaging Details: 25KGS BAG
Appearance: Light yellow powder
Package: 25kg or 500kgs bag
Curing time: 40-60s
Monomers: Phenol and Formaldehyde
Flow: Short
Application: Disc Brake Pads
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    Low Toxicity Phenol Formaldehyde Resin Acid Resistance For Brake Shoe Lining Material

    Phenol Formaldehyde Resin Powder with Low Free Phenol for Disc Brake Pads

    Product Description


    Phenol Formaldehyde Resin F2185 is produced by condensing a molar excess of phenol to formaldehyde in the presence of an acid catalyst. This produces a thermoplastic resin. To cure this resin, a hardening agent is used, HMTA (or hexa). Under heat and pressure, it yields ammonia and formaldehyde as methylene groups to cure the resin, hence the term “two-step,” because of the two formaldehyde additions. A novolak phenolic resin has an infinite shelf life under normal storage conditions.Cured phenolic resin provides the rigidity necessary to maintain structural integrity and dimensional stability even under severe conditions.


    Characteristics


    1. Bonding Strength


    The primary use of phenolic resin is as a bonding agent. Phenolic resin effortlessly penetrates and adheres to the structure of many organic and inorganic fillers and reinforcements, which makes it an ideal candidate for various end uses.


    2. High Temperature Performance


    A key characteristic of thermoset phenolic resin is its ability to withstand high temperature under mechanical load with minimal deformation or creep. In other words, cured phenolic resin provides the rigidity necessary to maintain structural integrity and dimensional stability even under severe conditions.


    3. Chemical Resistance


    Phenolic resins accommodate the harsh exposure of severe chemical environments. The inherent nature of

    phenolic resin provides an impervious shield to protect a variety of substrates from the corrosive effects of

    chemicals. Laboratory tests confirm minimal degradation from many chemicals after prolonged exposure,

    often at elevated temperatures.


    4. Low Smoke and Toxicity


    Burning phenolic resin typically generates hydrogen, hydrocarbons, water vapor, and carbon dioxide. Phenolic resin produces a relatively low amount of smoke at a relatively low level of toxicity.


    5 . High Carbon and Char Yield


    Phenolic resins demonstrate higher char yields than other plastic materials when exposed to temperatures

    above their point of decomposition. In an inert atmosphere at high temperatures (600° - 2,000°F, 300 -

    1,000°C), phenolic resin will convert to a structural carbon known as vitreous carbon. In many ways, this

    material behaves similar to ceramic and may actually contribute to structural integrity when exposed to fire

    situations.


    Application


    Phenol Formaldehyde Resin F2185 is recommended for Disc Brake Pads.


    ● Low free phenol
    ● Improved toughness
    ● Improved heat resistance
    ● Reduced noise and judder



    Specification:


    PropertiesValueTest standard
    Flow@125°C20-30mmGB/T24411-2009
    Curing time @150°C40-60sGB/T24411-2009
    Free-phenol0-3.5%GB/T30773-2014

    Packing&Storage


    the package is paper-plastics bag in 25KGS each one
    The storage life of this product is several months in a cool and dry place in original closed bags



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