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    Antioxidant

    AO-K

    AO-K is a novel multifunctional antioxidant or heat stabilizer for nylon products. By incorporating many beneficial functions into its special molecular structure, AO-K work as high efficient and long term stabilizer with low level in the nylon resin, and remain its highly reducibility even at extremely high temperature during processing and daily use. The advantages of the AO-K was confirmed by the highly stability of the pressure of nylon melt, the excellent extruding stability and the outstanding performance of nylon products. Besides, in terms of the textile industry, AO-K can prevent the broken of silk during spinning process.  

    Features

    Items

    Unit

    Standard

    Appearance

     

    White powder

    Active ingredient

    %

    99

    Thermal decomposition temperature

    (TGA, 5% weight loss,N2,10℃/min)

    330

    Volatility

    (105℃/2hr)

    %

    ≤0.3

    Ash content

    %

    0.1

    Characters

    • High temperature stability and low volatility.

    • High compatibility with nylon matrix leads to good processing property.

    • More efficient stabilization in longer term heat for nylons, compared with traditional stabilizers. 

    Recommended Dosage

     0.2%-0.5%.

    Package & Storage

    25kg/Carton. Placed in dry and ventilated place, avoid moisture and heat.

     

    Example of Application

    Improve the thermal stability and long term mechanical property of nylon products

    AO-K can apply to automotive industry, inhibiting the components from thermally induced degradation associated with exposure to O2/NOx gases and remain mechanical property stability of the components in the long time.

     

     

    Items

    Test standards

    Unit

    PA66 properties

    No AO-K

    Mix 0.3% of AO-K

    no aging

    130℃

    /168h

    130℃

    /1200h

    no aging

    130℃

    /168h

    130℃

    /1200h

    Melt point

    ISO 3164

    259

    260

    253

    260

    261

    257

    Thermal decomposition temperature

    N2 5%

    411

    -

    -

    426

    -

    -

    Air 5%

    392

    -

    -

    404

    -

    -

    Tensile strength

    ISO 527

    MPa

    77

    67

    21

    79

    80

    61

    Flexural strength

    ISO 178

    MPa

    124

    109

    46

    125

    117

    103

    Izod impact strength

    ISO 179

    KJ/m2

    4.5

    <1

    <1

    4.5

    4.3

    2.1

     

    Remark: The above data are only for reference. Customer should change the formula according to actual dosage and application. 

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