04-04-2023 дата публикации
Номер: CN115895562A
Принадлежит:
The invention belongs to the technical field of polyurethane hot melt adhesives, and relates to a single-component salt-spray-resistant polyurethane hot melt adhesive and a preparation method thereof.The single-component salt-spray-resistant polyurethane hot melt adhesive is prepared from, by weight, 30-40 parts of polycarbonate diol, 10-20 parts of polyethylene glycol terephthalate, 10-20 parts of 1, 2, 4-trimethyl-1, 3-pentanediol, 10-20 parts of 1, 2, 4-trimethyl-1, 3 The coating is prepared from the following components in parts by weight: 3 to 8 parts of 1, 6-hexanediol, 8 to 15 parts of amorphous liquid saturated polyester, 15 to 20 parts of acrylic resin, 0.05 to 0.15 part of an antioxidant, 0.05 to 0.15 part of a flatting agent, 0.02 to 0.04 part of a water removal agent, 18 to 23 parts of diisocyanate, 0.3 to 0.6 part of a coupling agent and 0.03 to 0.06 part of a catalyst. The prepared hot melt adhesive has the functions of salt mist resistance, creep resistance, high-temperature ...
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