| abstract |
The invention discloses a PUR laminating hot-melt adhesive for robot-operated wooden door sleeves. The preparation raw materials, in parts by weight, include 50-70 parts of polyester polyol, 20-30 parts of polyether polyol, and tackifying resin. 15-30 parts, 15-25 parts of isocyanate, 1-3 parts of antioxidant, 1-5 parts of flame retardant, 1-5 parts of hydrophobic nano silica. The prepared PUR laminating hot melt adhesive has long open time and good initial tack and high initial tack strength and final bond strength. It can satisfy the automatic operation of the automatic robot for the automatic operation of the wooden door and the wooden sleeve, thereby improving the work efficiency and the quality of the lamination. |