Halogen-free flame-retardant antibacterial anti-aging polypropylene composite material and preparation method thereof
A composite material, polypropylene technology, applied in the field of organic chemical industry, can solve the problems of polymer mechanical and electrical performance decline, loss of use value, easy damage, etc., to achieve the effect of concise formula, simple processing and low price
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[0021] Example 1:
[0022] First, weigh 100 parts by weight of PP raw materials, 30 parts by weight of halogen-free flame retardant (ammonium polyphosphate: pentaerythritol=2:1), and 2 parts by weight of modified nano zinc oxide, and mix these materials uniformly. Then preheat the twin-screw extruder to 210°C, add the uniformly mixed raw materials into the twin-screw extruder, control the screw speed to 120r / min, and granulate the product to obtain halogen-free flame-retardant antibacterial and anti-aging polypropylene Masterbatch. The halogen-free flame-retardant antibacterial and anti-aging PP masterbatch has a limiting oxygen index of 29.5%, vertical combustion can reach V-0, and an antibacterial effect on Escherichia coli can reach 99.99%.
Example Embodiment
[0023] Example 2:
[0024] First, weigh 100 parts by weight of PP raw materials, 25 parts by weight of halogen-free flame retardant (melamine phosphate: dipentaerythritol=2:1), and 5 parts by weight of modified nano zinc oxide, and mix these materials uniformly. Then preheat the twin-screw extruder to 200°C, add the uniformly mixed raw materials into the twin-screw extruder, control the screw speed to 110r / min, and granulate the product to obtain halogen-free flame-retardant antibacterial and anti-aging polypropylene Masterbatch. The halogen-free flame-retardant, anti-bacterial and anti-aging PP masterbatch can reach a limiting oxygen index of 28%, a vertical combustion can reach V-0, and an antibacterial effect on Escherichia coli can reach 99.999%.
Example Embodiment
[0025] Example 3:
[0026] First, weigh 100 parts by weight of PP raw materials, 40 parts by weight of halogen-free flame retardant (melamine pyrophosphate: pentaerythritol=2:1), and 1.5 parts by weight of modified nano zinc oxide, and mix these materials uniformly. Then preheat the twin-screw extruder to 220°C, add the uniformly mixed raw materials into the twin-screw extruder, control the screw speed to 130r / min, and granulate the product to obtain halogen-free flame-retardant antibacterial and anti-aging polypropylene Masterbatch. The halogen-free flame-retardant, anti-bacterial and anti-aging PP masterbatch has a limiting oxygen index of 30.5%, vertical combustion can reach V-0, and an antibacterial effect on Escherichia coli can reach 99.99%.
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