Application of tertiary amine catalyst LE-530 in improving weather resistance and chemical corrosion resistance of polyurethane coatings

application of tertiary amine catalyst le-530 in improving the weather resistance and chemical corrosion resistance of polyurethane coatings 1. introduction polyurethane coatings are widely used in construction, automobile, ship, furniture and other fields due to their excellent physical properties and chemical stability. however, with the diversification of application environments, polyurethane coatings face increasing demands in terms of weather resistance and chemical corrosion resistance. as a highly…