A kind of abrasive tool of modified nanomaterial composite phenolic resin and preparation method thereof
A nano-material and phenolic resin technology, applied in grinding/polishing equipment, abrasives, grinding devices, etc., to achieve mild conditions, avoid direct contact, and improve heat resistance
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Embodiment 1
[0043] Preparation of modified white graphene
[0044]Take 10 parts of 2-10 layers of white graphene powder and add it to a round bottom flask, and add 100ml of distilled water to the round bottom flask, then ultrasonically disperse, add 0.2 parts of sodium lauryl sulfate to the round bottom flask, and ultrasonically Stir to obtain lipophilic modified white graphene;
[0045] After heating 10 parts of the lipophilic modified white graphene dispersion to 85°C, add 1 part of ammonium persulfate initiator, stir for 10 minutes, start to add 1 part of styrene dropwise, and finish dropping in 0.5 hours. After the dropwise addition, keep warm for 30 min until the reaction is complete. After the reaction is completed, adjust the pH value to 7 with ammonia water, quickly cool to room temperature, filter under reduced pressure, wash the filter cake with distilled water for 3 to 4 times, then wash with alcohol once, and vacuum dry at 60°C, grind to obtain styrene-coated modification w...
Embodiment 2
[0050] Preparation of modified white graphene
[0051] Take 10 parts of white graphene powder with 2 to 10 layers and add it to a round bottom flask, and add 100ml of ethanol to the round bottom flask, then ultrasonically disperse, add 0.5 part of oleic acid to the round bottom flask, and ultrasonically stir at high speed to obtain the Oil modified white graphene;
[0052] After heating 10 parts of lipophilic modified white graphene dispersion to 85°C, add 1 part of ammonium persulfate initiator, stir for 10 minutes, start to add 1 part of methyl acrylate dropwise, and finish dropping in 0.5 hours. After the dropwise addition, keep warm for 45 minutes until the reaction is complete. After the reaction is completed, adjust the pH value to 7 with ammonia water, quickly cool to room temperature, filter under reduced pressure, wash the filter cake with distilled water for 3 to 4 times, then wash with alcohol once, and vacuum dry and grind at 70°C to obtain polymethyl acrylate co...
Embodiment 3
[0057] Preparation of modified white graphene / silica
[0058] Take 6 parts of 2-20 layers of white graphene powder and 4 parts of silicon dioxide into a round bottom flask, and add 100ml of glycerol to the round bottom flask, then ultrasonically disperse, and add 0.5 parts of oil to the round bottom flask Amine, ultrasonically stirred at high speed to obtain lipophilic modified white graphene;
[0059] After heating 10 parts of lipophilic modified white graphene / silicon dioxide dispersion to 90°C, add 1 part of azobisisobutyronitrile initiator, stir for 10 minutes, start to add 1 part of ethyl acrylate dropwise, and finish dropping in 1 hour . After the dropwise addition, keep warm for 30 min until the reaction is complete. After the reaction is completed, adjust the pH value to 7 with ammonia water, quickly cool to room temperature, filter under reduced pressure, wash the filter cake with distilled water for 3 to 4 times, and then wash with alcohol once, and vacuum-dry at...
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