Super-soft water sand paper and its preparation method

By combining modified polyurethane primer, composite modified silicon carbide abrasive, and amino-modified calcium carbonate phenolic resin composite, a dense network structure is constructed, which solves the problems of low tensile strength and high water absorption of wet sandpaper and achieves high-performance grinding effect.

CN119897811BActive Publication Date: 2026-07-24HEBEI SIRIEN NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI SIRIEN NEW MATERIAL TECH CO LTD
Filing Date
2024-12-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing wet sandpaper has low tensile strength, high water absorption, and poor grinding performance, which limits its application range.

Method used

Modified polyurethane was used as the base adhesive, composite modified silicon carbide was used as the abrasive, and phenolic resin containing amino-modified calcium carbonate was used as the top adhesive to construct a dense interpenetrating network structure. Combined with modified carbon nanotubes and fluorosilane coupling agent treatment, the longitudinal tensile strength was improved and the water absorption rate was reduced.

Benefits of technology

It significantly improves the longitudinal tensile strength and grinding performance of wet sandpaper, while reducing water absorption and enhancing material stability and grinding effect.

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Abstract

The present application belongs to abrasive material technical field, and particularly relates to a super-soft water sandpaper and a preparation method thereof. The super-soft water sandpaper is obtained by using modified polyurethane as a base glue, using composite modified carbonization as an abrasive, and cooperating with a phenolic resin compound containing amino-modified calcium carbonate, so that the longitudinal tensile strength of the sandpaper is effectively improved, the water absorption rate is reduced, and good grinding performance is ensured.
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