柔性杂化陶瓷涂料的研制及其性能研究

Preparation and Properties of Flexible Hybrid Ceramic Coatings

以聚碳酸酯二醇和γ–异氰酸酯基丙基三乙氧基硅烷为原料,制备了具有良好硅烷相容性与贮存稳定性的活性增韧聚合物ZG2,并将其应用于陶瓷涂料的柔性改性。实验结果显示,聚碳酸酯基增韧聚合物ZG2的掺杂,一方面可以包埋涂料中的活性硅醇,延长涂料的贮存周期;另一方面可以充当涂层中的柔性缓冲区,改善因收缩应力而产生的涂层开裂、附着力低等问题。此外,ZG2还可以参与陶瓷涂料的交联进程,提升涂层的腐蚀介质屏蔽性。当ZG2的掺杂质量分数为9%时,所得改性杂化陶瓷涂料的贮存稳定性、热稳定性、机械强度及综合防护性能最优,具备市场化推广潜力。

Toughened polymers ZG2 with good coatings compatibility and storage stability was synthesized with polycarbonate glycol andγ-IPTS as raw materials.Then it was added to the ceramic coatings to enhance its toughness.The experimental results indicate that the addition of ZG2 can embed active silanol groups and improve the stability of the coatings.ZG2 can also improve the toughness of coatings,avoid coatings cracking,and enhance the adhesion of coatings.In addition,ZG2 can also crosslink with ceramic coatings to improve their shielding properties.When the addition amount of ZG2 is 9%(wt),the comprehensive performance of the obtained ceramic coatings is optimal and has great potential for application.