Butyl hot melt adhesive tape and preparation method thereof
A butyl heat and butyl rubber technology, applied in the direction of adhesives, adhesive types, film/sheet adhesives, etc., can solve the problems of large equipment investment, high defective rate of finished products, and low initial adhesion of tapes. , to achieve good sealing effect, high adhesion and bonding strength, low water vapor transmission rate
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Embodiment 1
[0032] Put 30 parts of polyisobutylene B5000 into a vacuum kneader, raise the temperature to 160°C, and stir for 0.8 hours under a vacuum condition of 0.09-0.094MPa; 1 part of resin, 2 parts of uniform tackifier, 3 parts of polyethylene wax and stir for 0.6 hours; then add 10 parts of EVA and 10 parts of butyl rubber and stir for 1.0 hour; finally add 5 parts of carbon black and stir for 0.5 hours; at 0.09~0.094 Stir under MPa vacuum condition for 0.5 hour and discharge after passing the inspection. Heat the rubber material to 110°C, press it to a thickness of 0.7mm on a coating machine, and then cut it into a tape with a width of 10mm on a cutting machine.
Embodiment 2
[0034] Put 50 parts of polyisobutylene B500 into a vacuum kneader, raise the temperature to 180°C, and stir for 1.5 hours under a vacuum condition of 0.09-0.094MPa; 5 parts of resin, 7 parts of uniform tackifier, 6 parts of polyethylene wax and stir for 1.5 hours; then add 20 parts of EVA and 20 parts of butyl rubber and stir for 1.5 hours; finally add 10 parts of carbon black and stir for 1 hour; Stir under 0.094MPa vacuum condition for 1.0 hour and discharge after passing the inspection. Heat the rubber material to 110°C, press it to a thickness of 0.7mm on a coating machine, and then cut it into a tape with a width of 10mm on a cutting machine.
Embodiment 3
[0036] Put 505 parts of polyisobutylene B5 into a vacuum kneader, raise the temperature to 170°C, and stir for 1.0 hour under the vacuum condition of 0.09-0.094MPa; 3 parts of resin, 5 parts of uniform tackifier, 4.5 parts of polyethylene wax and stir for 1.2 hours; then add 15 parts of EVA and 16 parts of butyl rubber and stir for 1.3 hours; finally add 8 parts of carbon black and stir for 0.8 hours; at 0.09~0.094 Stir under MPa vacuum condition for 0.7 hours and discharge after passing the inspection. Heat the rubber material to 110°C, press it to a thickness of 0.7mm on a coating machine, and then cut it into a tape with a width of 10mm on a cutting machine.
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