Butyl sealant
A technology of sealant and butyl rubber, which is applied in the field of sealant, can solve problems such as poor air tightness, and achieve the effect of excellent hydrophobicity, low cost, and excellent air tightness
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Embodiment 1
[0013] A butyl sealant, the raw materials in parts by weight include: 55 parts of butyl rubber, 29 parts of natural rubber, 40 parts of petroleum resin, 6 parts of titanium dioxide, 4 parts of antioxidant D, 160 parts of xylene, and 20 parts of fumed silica Parts, 99 parts of talc, 9 parts of thickener, 17 parts of humectant, wherein the humectant is glycerol, the thickener is dioctyl phthalate; the butyl rubber, natural rubber, antioxidant D, After the titanium dioxide was mixed in an open rubber mixer for 30 minutes, the roller pitch of the rubber mixer was adjusted to 1.7 cm to obtain a film sheet. The film sheet was soaked in a xylene solvent for 27 hours to obtain a glue solution. Knead in the kneader until the glue is uniform and free of particles, and then add petroleum resin, humectant, thickener, talc, and fumed silica for 13 minutes to obtain a butyl sealant.
Embodiment 2
[0015] A butyl sealant, the raw materials by weight include: 60 parts of butyl rubber, 25 parts of natural rubber, 46 parts of petroleum resin, 8 parts of titanium dioxide, 7 parts of antioxidant D, 155 parts of xylene, and 15 parts of fumed silica Parts, 105 parts of talc, 10 parts of thickener, 20 parts of humectant, wherein the humectant is propylene glycol, and the thickener is dibutyl ester; butyl rubber, natural rubber, antioxidant D, and titanium dioxide are mixed in an open mill After mixing in the rubber machine for 25 minutes, adjust the roller pitch of the rubber mixing machine to 1 cm to obtain a film sheet, soak the film sheet in xylene solvent for 30 hours to obtain a glue liquid, and throw the glue liquid into the kneader to knead the glue. The liquid is uniform without particles, and then petroleum resin, humectant, thickener, talcum powder, fumed white carbon black are added and kneaded for 15 minutes to obtain butyl sealant.
Embodiment 3
[0017] A butyl sealant, the raw materials in parts by weight include: 65 parts of butyl rubber, 30 parts of natural rubber, 43 parts of petroleum resin, 3 parts of titanium dioxide, 9 parts of antioxidant D, 140 parts of xylene, and 25 parts of fumed silica Parts, 103 parts of talc, 15 parts of thickener, and 10 parts of humectant. The thickener is composed of dioctyl phthalate and dibutyl ester, and the humectant is composed of glycerol and propylene glycol; the butyl rubber , Natural rubber, antioxidant D, titanium dioxide are mixed in an open rubber mixer for 35 minutes, the roller distance of the rubber mixer is adjusted to 1 cm to obtain a film sheet, and the film sheet is soaked in xylene solvent for 20 hours to obtain Glue liquid, put the glue liquid into a kneader and knead until the glue liquid is uniform and free of particles, and then add petroleum resin, moisturizer, thickener, talc powder, fumed white carbon black and continue kneading for 8 minutes to obtain butyl ...
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