Petroleum resin-based surfactant and preparation method thereof
A surfactant and petroleum resin technology, applied in the direction of adhesives, adhesive types, grafted polymer adhesives, etc., can solve the problems of poor storage stability, complex structure, large dosage, etc., and achieve good stability
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Embodiment 1
[0033] 1) Weigh 512g petroleum resin (dicyclopentadiene petroleum resin, number average molecular weight is 512, softening point is 80°C, iodine value is 104) and 258g vinyl acetate are placed in a stainless steel reaction kettle, add 2.5g azobis Isobutyronitrile; nitrogen replacement three times, heated to 60-70°C under nitrogen atmosphere, stirred and reacted for 2 hours, vacuumed after the reaction to remove unreacted vinyl acetate;
[0034] 2) After cooling down to room temperature, add 128g of methanol and 0.77g of potassium hydroxide solid into the reaction kettle, replace with nitrogen three times, raise the temperature to 70°C under nitrogen atmosphere for alcoholysis reaction for 1h, remove methanol and methyl acetate in vacuum after the reaction ;
[0035] 3) After cooling down to room temperature, add 3.07g of potassium hydroxide solid into the reaction kettle, raise the temperature to 140°C and slowly pass in 880g of ethylene oxide, stir and mature for 1h after the...
Embodiment 2
[0038] 1) Weigh 650g of petroleum resin (C9 petroleum resin, the number average molecular weight is 650, the softening point is 90°C, and the iodine value is 89) and 258g of vinyl acetate are placed in a stainless steel reaction kettle, and 6g of azobisisoheptanonitrile is added; Nitrogen was replaced three times, and the temperature was raised to 80-100°C under a nitrogen atmosphere, and the reaction was stirred for 2 hours. After the reaction, the unreacted vinyl acetate was removed by vacuuming;
[0039] 2) After cooling down to room temperature, add 160g of methanol and 1.56g of solid sodium hydroxide to the reaction kettle, replace with nitrogen three times, raise the temperature to 80°C under nitrogen atmosphere for alcoholysis reaction for 2 hours, and vacuum remove methanol and methyl acetate after the reaction ;
[0040]3) After cooling down to room temperature, add 6.24g of solid sodium hydroxide to the reactor, raise the temperature to 150°C and slowly feed in 290g ...
Embodiment 3
[0044] 1) Weigh 524g of petroleum resin, wherein the mass ratio of dicyclopentadiene petroleum resin: C5 petroleum resin is 2:1 (dicyclopentadiene petroleum resin, the number average molecular weight is 512, the softening point is 80°C, and the iodine value is 104; C5 petroleum resin, the number average molecular weight is 550, the softening point is 85 ℃, the iodine value is 95) and 301g vinyl acetate are placed in stainless steel reaction kettle, add 1g azobisisobutyronitrile; nitrogen replacement three times, under nitrogen atmosphere Raise the temperature to 60°C, stir and react for 1 hour, and vacuumize after the reaction to remove unreacted vinyl acetate;
[0045] 2) After cooling down to room temperature, add 138g of ethanol and 1.05g of potassium hydroxide solid into the reaction kettle, replace with nitrogen three times, raise the temperature to 60-80°C under nitrogen atmosphere for alcoholysis reaction for 0.5h, vacuum remove ethanol and Methyl acetate;
[0046] 3) ...
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