1results about How to "Solve easy hydrolysis" patented technology

This invention belongs to the field of polyurethane adhesive technology, specifically relating to a two-component bio-based flame-retardant polyurethane potting compound and its preparation method. It consists of component A and component B, with the molar ratio of hydroxyl groups in component A to isocyanate groups in component B being 1:(1-1.05). Component A comprises the following raw materials in parts by weight: bio-based polyol I: 44-55 parts; bio-based polyol II: 44-55 parts; crosslinking agent: 1-2 parts; catalyst: 0.1-0.5 parts; defoamer: 1.0-3.0 parts; silane coupling agent: 0.1-0.5 parts; dehydrating agent: 0.5-1.0 parts; and component B is a modified isocyanate. The potting compound's component A uses bio-based raw materials such as castor oil to synthesize a comb-shaped polyol, improving hydrophobicity and adhesion; component B introduces nitrogen and phosphorus flame-retardant elements into the modified isocyanate, achieving intrinsic flame retardancy.