A kind of 350 ℃ burning resistant conveyor belt covering glue and its preparation method
A technology of covering glue and conveyor belt, applied in the field of covering glue of conveyor belt and its preparation, can solve the problems of crack and wear, low service life, etc., and achieve the effect of improving service life, low electrostatic conductivity, and avoiding crack and wear
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Embodiment 1
[0022] A conveyor belt covering rubber resistant to 350°C burning, the covering rubber is composed of the following components in the following parts by weight: styrene-butadiene rubber 100, indirect method zinc oxide 5, stearic acid 1, anti-aging agent (4010NA) 2.0, anti-aging Agent (MB) 1.5, antioxidant (RD) 2.0, carbon black (N220) 60, C9 petroleum resin 5.0, coumarone resin 3.0, dispersant 4.0, sulfur 1.5, vulcanization accelerator (TBBS) 2.0, vulcanization accelerator ( DM) 0.5, 52 # Chlorinated paraffin oil 5.0, coking agent (PNC-6) 12.0.
[0023] Prepare the above-mentioned covering glue weight ratio according to the following steps:
[0024] A) Add styrene-butadiene rubber to the internal mixer, then press the top bolt for 50 seconds to lift the weight, then add activator, resin, anti-aging agent, coking agent, dispersant and 1 / 2 carbon black, press the top bolt for 90 seconds to lift mound, then add the remaining carbon black and 52 # Chlorinated paraffin oil, pres...
Embodiment 2
[0028] A conveyor belt covering rubber resistant to 350°C burning, the covering rubber is composed of the following components in the following parts by weight: styrene-butadiene rubber 100, indirect method zinc oxide 5, stearic acid 1, anti-aging agent (4010NA) 2.0, anti-aging Agent (MB) 2.5, antioxidant (RD) 1.5, carbon black (N220) 60, C9 petroleum resin 4.0, coumarone resin 4.0, dispersant 4.0, sulfur 1.5, vulcanization accelerator (TBBS) 2.0, vulcanization accelerator ( DM) 0.5, 52 # Chlorinated paraffin oil 5.0, coking agent (PNC-6) 12.0.
[0029] A) Add styrene-butadiene rubber to the internal mixer, then press the top bolt for 45 seconds to lift the weight, then add activator, resin, anti-aging agent, coking agent, dispersant and 1 / 3 carbon black, press the top bolt for 90 seconds to lift mound, then add the remaining carbon black and 52 # Chlorinated paraffin oil, press the top plug for 120 seconds, and degumming at 120°C at 20 rpm;
[0030] B) Put the sizing mater...
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