Pipeline joint anticorrosion dry film hot melt adhesive
A technology of hot melt adhesive and dry film, applied in the direction of adhesives, adhesive types, mineral oil hydrocarbon copolymer adhesives, etc., can solve the problems that cannot meet the needs of dry film construction and anticorrosion, and achieve good bonding performance, Excellent product performance, the effect of solving applicability
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[0021] Example 1
[0022] (1) First, dry the raw materials of each component in the formula, and then weigh the mixture of 74% ethylene-acrylate-maleic anhydride terpolymer (EMH) and ethylene-vinyl acetate copolymer (EVA) (EMH and EVA) The mass ratio of EVA is 9:1, the VA content of EVA is 30%, and the melt index (MI) of EVA is 150g / 10min). Weigh 23% of rosin resin and C 5 The mixture of petroleum resin is used as a composite tackifying resin (rosin resin and C 5 The mass ratio of petroleum resin is 1:3), 0.8% diphenylmethane diisocyanate, 0.5% antioxidant 1010, 1.3% light calcium carbonate and carbon black;
[0023] (2) Put the raw materials prepared in step (1) into the internal mixer, mix for 2 hours at a temperature of 180-190°C, then stir for 10 minutes and vacuum for 30 minutes;
[0024] (3) Apply the mixture obtained in step (2) to press roller to make hot melt adhesive.
Example Embodiment
[0025] Example 2
[0026] (1) First, dry the raw materials of each component in the formula, and then weigh the mixture of 70% ethylene-acrylate-maleic anhydride terpolymer (EMH) and ethylene-vinyl acetate copolymer (EVA) (EMH and EVA) The mass ratio of EVA is 9:1, the VA content of EVA is 30%, and the melt index (MI) of EVA is 150g / 10min). Weigh 26% of rosin resin and C 5 The mixture of petroleum resin is used as a composite tackifying resin (rosin resin and C 5 The mass ratio of petroleum resin is 1:3), 1% diphenylmethane diisocyanate, 0.8% antioxidant 1010, 2.2% light calcium carbonate and carbon black;
[0027] (2) Put the raw materials prepared in step (1) into the internal mixer, mix for 2 hours at a temperature of 180-190°C, then stir for 10 minutes and vacuum for 30 minutes;
[0028] (3) Apply the mixture obtained in step (2) to press roller to make hot melt adhesive.
Example Embodiment
[0029] Example 3
[0030] (1) First, dry the raw materials of each component in the formula, and then weigh the mixture of 78% ethylene-acrylate-maleic anhydride terpolymer (EMH) and ethylene-vinyl acetate copolymer (EVA), (EMH The mass ratio with EVA is 9:1, the VA content of EVA is 30%, the melt index (MI) of EVA is 150g / 10min), weigh 18% of rosin resin and C 5 The mixture of petroleum resin is used as a composite tackifying resin (rosin resin and C 5 The mass ratio of petroleum resin is 1:3), 0.6% diphenylmethane diisocyanate, 0.8% antioxidant 1010, 2.6% light calcium carbonate and carbon black;
[0031] (2) Put the raw materials prepared in step (1) into the internal mixer, mix for 2 hours at a temperature of 180-190°C, then stir for 10 minutes and vacuum for 30 minutes;
[0032] (3) Apply the mixture obtained in step (2) to press roller to make hot melt adhesive.
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