Aldehyde imide modified aspartate polyurea resin was used as the host resin and aliphatic isocyanate was used as the curing agent to prepare a modified aspartic polyurea stitching agent with long activation period,rapid drying and ultra-high solid content.The effects of different aldehydes and dosage on the properties of the stitching agent were investigated.The results showed that the modified aspartame stitching agent had a solid content of more than 99.5%when the molar ratio of hydroxypivalaldehyde was 20%and surface drying is within 20 min,the paint film has excellent yellowing resistance,abrasion resistance and mechanical strength,and is an excellent environment-friendly long-term high-end beautiful seam materia
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