Medical silver-carrying antibacterial agent modified PP material and preparation method thereof
An antibacterial agent and modification technology, applied in the field of medical silver-loaded antibacterial agent modified PP material and its preparation, can solve the problems of Staphylococcus aureus antibacterial rate, low tensile strength and impact strength, etc.
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Embodiment 1
[0022] Take by weighing 100 parts in parts by weight of PP; 15 parts of EPDM rubber; 1 part of nano zirconium phosphate silver-loaded antibacterial agent; 1 part of barium stearate; 2 parts of acetone; 10 parts of talcum powder; 0.1 parts; 0.1 parts of titanium dioxide; 5 parts of ethylene; 20 parts of butadiene rubber; 2.5 parts of borate surface treatment agent; 0.5 parts of lead stearate; 4 parts of propylene; 1.5 parts of zinc oxide; 3 parts of ethyl-2-norbornene.
[0023] Put PP, EPDM rubber, nano-zirconium phosphate silver-loaded antibacterial agent, barium stearate and butadiene rubber into the reaction kettle and heat to 60°C, stir for 30 minutes at a stirring speed of 200 rpm, then add the remaining raw materials, Raise the temperature to 110°C and stir for 60 minutes at a stirring speed of 400 rpm.
[0024] Put the mixed material into a twin-screw extruder, the barrel temperature is 190°C, 195°C, 200°C, 205°C, 210°C, 215°C and 220°C, the screw speed is 80 rpm, extru...
Embodiment 2
[0027] Take by weighing 100 parts in parts by weight of PP; 35 parts of EPDM rubber; 5 parts of nano zirconium phosphate silver-loaded antibacterial agent; 3 parts of barium stearate; 8 parts of acetone; 30 parts of talcum powder; 0.3 parts; 2.5 parts of titanium dioxide; 9 parts of ethylene; 40 parts of butadiene rubber; 4.5 parts of borate surface treatment agent; 4.5 parts of lead stearate; 8 parts of propylene; 5.5 parts of zinc oxide; 5 parts of ethyl-2-norbornene.
[0028] Put PP, EPDM rubber, nano-zirconium phosphate silver-loaded antibacterial agent, barium stearate and butadiene rubber into the reaction kettle and heat to 80°C, stir for 50 minutes at a stirring speed of 400 rpm, then add the remaining raw materials, Raise the temperature to 130°C and stir for 100 min at a stirring speed of 600 rpm.
[0029] Put the mixed material into the twin-screw extruder, the barrel temperature is 190°C, 195°C, 200°C, 205°C, 210°C, 215°C and 220°C, the screw speed is 100 rpm, ext...
Embodiment 3
[0032] Take by weighing 100 parts in parts by weight of PP; 20 parts of EPDM rubber; 2 parts of nano zirconium phosphate silver-loaded antibacterial agent; 1.5 parts of barium stearate; 4 parts of acetone; 15 parts of talcum powder; 0.15 parts; 0.5 parts of titanium dioxide; 6 parts of ethylene; 25 parts of butadiene rubber; 3 parts of borate surface treatment agent; 1.5 parts of lead stearate; 5 parts of propylene; 2.5 parts of zinc oxide; 3.5 parts of ethyl-2-norbornene.
[0033] Put PP, EPDM rubber, nano zirconium phosphate silver-loaded antibacterial agent, barium stearate and butadiene rubber into the reaction kettle and heat to 65°C, stir for 35min at a stirring speed of 250 rpm, then add the remaining raw materials, Raise the temperature to 115°C and stir for 70 minutes at a stirring speed of 450 rpm.
[0034] Put the mixed material into a twin-screw extruder, the barrel temperature is 190°C, 195°C, 200°C, 205°C, 210°C, 215°C and 220°C, the screw speed is 85 rpm, extru...
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