| abstract |
The invention relates to a polyurethane adhesive, which comprises the following components in parts by weight: 15-35 parts of isocyanate, 15-30 parts of cyclic polydimethylsiloxane, 20-40 parts of HDI trimer, 15-30 parts of castor oil, 3-5 parts of defoaming agent, 3-5 parts of wetting agent, 1-3 parts of plasticizer and 1-3 parts of catalyst. The hot melt adhesive prepared by the invention has short curing time. |