一种新型环保水彩颜料的制备优化及性能影响分析  

Preparation optimization and performance impact analysis of a new environment-friendly watercolor pigment

作　　者：杜敏[1] DU Min(School of Electronic Information Engineering University,Ankang 725000,Shaanxi China)

机构地区：[1]陕西省安康学院,陕西安康725000

出　　处：《粘接》2023年第9期106-110,共5页Adhesion

摘　　要：针对传统中性墨水流变性能和润滑性能较差,颜料在水溶性溶液难以均匀分散的问题,提出通过助剂对中性墨水性能进一步优化。对颜料色浆进行优化,研究了添加剂对中性墨水的影响。结果表明:选择6076型共聚物为分散剂,颜基比为0.75,反应2 h,得到均匀性良好的色浆。以此色浆为基础,选择质量百分比分别为0.6%和1.2%的黄原胶和陶氏疏水改性碱溶胀缔合型增稠剂(DR-72)为增稠剂,甘油与分子量为200的聚乙二醇(PG200)为多元醇,质量百分比分别为1%和0.5%的磷酸酯类活性剂与油酸为表面活性剂制备的中性墨水性能最佳,此时紫色中性墨水4 s-1和383 s-1剪切速率下黏度分别为1 300.4、109.2 MPa·s,摩擦系数约为0.165。In view of the poor rheological and lubricating properties of traditional neutral ink,as well as the problem of difficult dispersion of pigments in aqueous solutions,it is proposed to further optimize the performance of neutral ink through the use of additives.Optimization of pigment dispersions was conducted,and the effects of additives on neutral inks were studied.The results showed that 6076 copolymer was selected as dispersant,the ratio of pigment to base was 0.75,and the color paste with good uniformity was obtained after 2h reaction.On the basis of this color paste,the best performance for neutral ink was achieved by using 0.6%and 1.2%xanthan gum and Dow hydrophobic modified alkali swelling associative thickener(DR-72)as thickeners,glycerol and polyethylene glycol(PG200)with molecular weight of 200 as polyols,and phosphonate activators and oleic acid with mass percentage of 1%and 0.5%respectively as surfactants.At this time,the viscosity of purple neutral ink at the shear rate of 4 s-1 and 383 s-1 was 1300.4 mPa•s and 109.2 mPa•s respectively,and the friction coefficient was about 0.165.

关 键 词：环保水彩颜料 摩擦系数 流变性能 润滑性能 影响分析 

分 类 号：TQ628[化学工程—精细化工]