| abstract |
The invention provides a reactive polyurethane hot-melt adhesive for household appliances and a preparation method thereof. The reactive polyurethane hot-melt adhesive for household appliances is prepared from raw materials comprising the following components: 100 to 250 parts by weight of polyester polyol 1 to 150 parts by weight of polyether polyol; 50 to 100 parts by weight of isocyanate; 70 to 150 parts by weight of tackifying resin; 1 to 10 parts by weight of latent curing agent; 1 part by weight of antioxidant 5 parts by weight to 5 parts by weight; 5 parts by weight to 10 parts by weight of coupling agent; 0.01 parts by weight to 0.1 parts by weight of catalyst; the polyester polyol is composed of crystalline polyester polyol and Amorphous polyester polyol; the latent curing agent is an aldimine latent curing agent or a bisazolidine latent curing agent. Compared with the prior art, the reactive polyurethane hot-melt adhesive for household appliances provided by the present invention uses specific content components to achieve better interaction, and the obtained product has no bubbles in the curing process, and has excellent bonding performance and water resistance. , Chemical resistance. |