Sealing process of sealed lead-acid battery
A lead-acid battery, sealed technology, applied in the field of sealants and coatings, can solve the problems of rubber-type sealant vulcanization, epoxy-type sealant brittleness, etc., and achieve the effect of preventing acid gas from escaping
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example 1
[0010] The bottom layer is made of liquid polybutadiene sealant (primer) terminated by toluene divinyl-vinyl acetate copolymer, and the surface layer is cast with petroleum asphalt.
[0011] Before painting the primer and casting asphalt, sand the surface of the battery tank cover to be sealed with sandpaper, blow off the dust with compressed air, and then clean it with acetone.
[0012] The primer ratio is as follows: 100 parts by weight of liquid polybutadiene terminated by toluene divinyl vinyl acetate copolymer, 10 parts by weight of 3,6-dimethylthio-2,5-diamine toluene, 5 parts by weight of KH560 coupling agent parts by weight, 0.01 parts by weight of dibutyltin dilaurate, and 10 parts by weight of carbon black.
[0013] Stir the prepared primer evenly, paint on the battery to be sealed, the thickness of the coating is 0.5-1mm, and cure at room temperature for 7 days. After curing, the tensile strength of the coating is 5MPa, and the elongation at break is 200%.
[0014]...
example 2
[0017] The bottom layer is made of liquid polybutadiene-styrene sealant (primer) terminated with isophorone divinyl-vinyl acetate copolymer, and the surface layer is cast with natural asphalt.
[0018] Before painting the primer and casting asphalt, sand the surface of the battery tank cover to be sealed with sandpaper, blow off the dust with compressed air, and then clean it with acetone.
[0019] The proportion of primer is as follows: 100 parts by weight of liquid polybutadiene-styrene coating terminated by isophorone divinyl-vinyl acetate copolymer, 15 parts by weight of 3,6-diethyl-2,5-diamine toluene , 10 parts by weight of KH560 coupling agent, 0.05 parts by weight of dibutyltin dilaurate, and 20 parts by weight of carbon black.
[0020] Stir the prepared primer evenly, paint on the battery to be sealed, the thickness of the coating is 0.7-1mm, and cure at room temperature for 5 days. After curing, the tensile strength of the coating is 5.5MPa, and the elongation at bre...
example 3
[0024] The bottom layer is made of liquid polybutadiene-styrene sealant (primer) capped with isophorone divinyl-vinyl acetate copolymer, and the surface layer is cast with epoxy-modified asphalt.
[0025] Before painting the primer and casting asphalt, sand the surface of the battery tank cover to be sealed with sandpaper, blow off the dust with compressed air, and then clean it with acetone.
[0026] The proportion of primer is as follows: 100 parts by weight of liquid polybutadiene-styrene coating terminated by isophorone divinyl-vinyl acetate copolymer, 15 parts by weight of 3,6-diethyl-2,5-diaminetoluene , 10 parts by weight of KH560 coupling agent, 0.05 parts by weight of dibutyltin dilaurate, and 20 parts by weight of carbon black.
[0027] Stir the prepared primer evenly, paint on the battery to be sealed, the thickness of the coating is 0.7-1mm, and cure at room temperature for 5 days. After curing, the tensile strength of the coating is 5.5MPa, and the elongation at b...
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