涂料喷墨印花用预处理乳液的制备及性能研究

Preparation and Properties of Pretreatment Emulsion for Pigment Ink-jet Printing

以苯乙烯(St)和丙烯酸丁酯(BA)为主要单体,丙烯酸(AA)为功能单体,壬基酚聚氧乙烯醚(OP-10)和甲基丙烯酰氧乙基三甲基氯化铵(DMC)为乳化剂,通过半连续种子乳液聚合法制备了阳离子乳液。研究了乳化剂、功能单体、交联剂用量等工艺条件对乳液性能的影响。通过优化工艺制备了具有良好的静置、稀释性和耐钙离子稳定性的乳液,该乳液作为涂料喷墨印花预处理液时,能够防止渗化透印,且具有良好的耐干、湿摩擦色牢度,能够满足一定的应用要求。

Pretreatment emulsion for ink-jet printing was prepared by a semi-continuous seed emulsion polymerization method using styrene(St)and butyl acrylate(BA)as the main monomers, acrylic acid as the functional monomer, nonylphenol ethoxylate(OP-10)and methacryloyloxyethyl trimethyl ammonium chloride(DMC) as the emulsifier. The effects of process parameters on the emulsion performance were studied in detail, such as the amount of the emulsifier, the functional monomer and crosslink agent. As a primer emulsion used in pigment ink-jet printing, the emulsion prepared has good standing stability, dilution stability and calcium tolerance stability, and it has good xerophytism and wet friction resistance colorfastness.