一种使用期超长的水性双组份聚氨酯面漆及其制备方法

By adjusting the ratio of waterborne resin and isocyanate curing agent and controlling the hydroxyl and NCO content, the problem of curing traditional waterborne two-component polyurethane topcoats at high temperatures was solved, resulting in an extended service life and improved construction efficiency.

CN120484659BActive Publication Date: 2026-07-17JIANGSU HAOYUE PAINT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU HAOYUE PAINT
Filing Date
2025-05-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional water-based two-component polyurethane topcoats will cure after a short period of storage in high-temperature environments, resulting in low construction efficiency and paint waste, which limits their application range.

Method used

By adjusting the combination of waterborne resin and isocyanate curing agent, controlling the hydroxyl content of waterborne hydroxy acrylic resin and the NCO content in isocyanate curing agent, and optimizing the ratio of component A and component B, the service life of the topcoat is extended, especially in high summer temperatures to meet construction requirements.

Benefits of technology

It effectively extends the service life of the topcoat, improves construction efficiency, reduces paint waste and costs, avoids equipment clogging, and facilitates cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种使用期超长的水性双组份聚氨酯面漆及其制备方法，属于涂料技术领域，其技术方案要点是一种使用期超长的水性双组份聚氨酯面漆，包括重量比为（4‑7）：1的A组分和B组分，所述A组分按重量百分比计包括水性羟基丙烯酸树脂60‑70%、水性分散剂1.1‑1.7%、有机硅消泡剂0.2‑0.5%、颜料8‑12%、填料4‑5%、去离子水12‑14%、助溶剂4‑6%、流平剂0.1‑0.2%、润湿剂0.2‑0.3%、增稠剂0.2‑0.3%；所述水性羟基丙烯酸树脂的羟基含量为2.2‑4.0%；所述B组分为异氰酸酯固化剂，所述异氰酸酯固化剂中NCO当量为11.5‑12.5%，本申请通过调整水性树脂和异氰酸酯固化剂的搭配，可以使得聚氨酯面漆具有不同时长的使用期，尤其是在夏季气温＞30℃的情况下。
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