摘要： 【目的】通过对比不同润湿分散剂对炭黑的分散效果，探究分散剂的解絮凝性能对黑漆漆膜黑度和调色漆颜色稳定性的影响。【方法】使用不同分散剂制备水性无树脂炭黑色浆，应用于黑色汽车修补漆和水性工业漆的调色。测量汽车修补漆不罩光以及罩光后的黑度，测试调色漆颜色的热贮稳定性（ 50 ℃/7 d），并测量炭黑色浆的粒径大小。【结果】 D2014分散高色素炭黑时，能得到更高黑度与蓝相的修补漆；分散中色素炭黑时，所制备的调色漆具有更好的颜色稳定性。粒径测量结果显示， D2014能让中色素炭黑色浆稳定在更小粒径的状态。【结论】漆膜的高黑度是炭黑颜料充分解絮凝的体现，而具有强烈解絮凝性能的分散剂在调色漆中也能够改善漆膜的颜色稳定性。

关键词: 水性, 润湿分散剂, 炭黑, 黑度, 调色漆, 颜色稳定, 解絮凝性能

Abstract: ［Objective］By comparing the dispersion effects of different wetting and dispersing additives on carbon black，the effects of deflocculating property of the additives on the jetness of paintfilms and color stability of tinting paints were investigated.［Methods］Waterborne resin-freecarbon black pigment concentrates with different additives were prepared，and applied for full-shade blackrefinish coatings and tinting industrial coatings. The jetness of the refinish coatings was measured bothbefore and after clear topcoat application. For tinted paints，the storage stability（50 ℃/7 d）of dry film color was assessed，and the particle size of pigment concentrates was measured.［Results］For high color carbon black pigments，the resulting black basecoat films with higher jetness and bluer undertonecould be achieved using D2014. When D2014 was used to prepare a pigment concentrate of a mediumcolor carbon black，the tinted coatings deliver superior color stability of the paint film. The particle sizemeasurement results verified that D2014 could stabilize medium color carbon black in a finelydispersed state.［Conclusion］ High jetness of the coating film was a reflection of thorough deflocculation of carbon black pigment. Meanwhile，dispersants with strong deflocculating performance coud also improve the color stability of films of the tinted coatings.

Key words: waterborne, wetting and dispersing additive, carbon black, jetness, tinted coatings, color stability, deflocculating property

中图分类号: 

• TQ630. 4