墨水用黑色染料技术进展

介绍了国内对墨水行业的要求,墨水用染料技术性能及制造工艺;综述了墨水用黑色染料的技术进展,给出了一些最新开发的墨水用黑色染料的结构式。     

适用于滩海地区的正电聚醇/甲酸盐钻井液

目前,水基钻井液仍然是滩海钻井的首选钻井液.正电聚醇钻井液和甲酸盐钻井液自从20世纪90年代在现场应用以来,均表现出良好的性能.为适应滩海钻井的需要,充分发挥正电聚醇和甲酸盐的优势,研制出了一种新型的正电聚醇-甲酸盐钻井液体系.在地层孔隙压力较低或较高时,分别利用正电聚醇或甲酸盐作为主要处理剂以确保钻井液具有良好的性能并维持较低的固相含量.分析了正电聚醇、甲酸盐的作用机理及其协同增效作用.室内试验评价了该钻井液的抗温性、抑制性、保护油气层性能以及用甲酸盐加重对钻井液性能的影响.该钻井液在埕海4和庄海12井等进行了初步应用,在应用中钻井液粘度变化不大,埕海4井和庄海12井的平均井径扩大率分别为9.19%和6.91%,明显低于邻井;起下钻及下套管正常,无遇阻情况,电测顺利.室内试验和现场应用结果均表明,正电聚醇和甲酸盐的协同作用,可使钻井液具有防塌、润滑、环保和储层保护等多种功能.     

Liquid Manipulation Lithography to Fabricate a Multifunctional Microarray of Organosilanes on an Oxide Surface under Ambient Conditions

A novel method to produce a multifunctional microarray in which different types of self‐assembled monolayers (SAMs) are positioned on predefined surface sites on an oxide‐covered silicon substrate is described. To achieve this, a liquid‐transportation system called “liquid manipulation lithography” (LML) is developed. This system allows the delivery of different varieties of molecular inks, trialkoxysilanes, onto each predefined surface position of the given substrate even under ambient conditions. Under optimum conditions, the transferred trialkoxysilane inks first form one‐molecule‐thick microstructures at each surface position through the hydrolysis of the reactive silanes with surface water adsorbed on the substrate, followed by a condensation reaction. Three types of trialkoxysilanes with long alkyl‐chains, specifically triethoxysilylundecanal (TESUD), N‐(6‐aminohexyl)‐3‐aminopropyltrimethoxysilane (AHAPS), and octadecyltrimethoxysilane (OTS), are used as model molecular inks due to their high‐end group‐functionalities in biological and electronic applications. The precise positioning of the ink with sub‐micrometer edge resolution is performed by carefully controlling a femtoliter‐scale liquid‐injection micromanipulator under a microscope. To ensure that the prepared SAM microarray is available for parallel analysis of biomolecular interactions, the area‐selective immobilization of a protein molecule is explored. Successful observation of the area‐selective biomolecular attachment confirmed a high industrial potential for the method as a lithography‐free process for the miniaturization of a multifunctional SAM array on an oxide substrate.     

水性网印油墨连接料树脂的制作及应用

介绍一种水性网印油墨主体连结料树脂的生产方法,并重点说明这种连接料的化学机理、配方及制作工艺步骤。     

聚羧酸型分散剂对水性超细颜料分散体系的作用

应用溶液聚合法,以马来酸酐、甲基丙烯酸甲酯为单体合成了聚羧酸型高分子分散剂MM,研究了MM对颜料红22分散体系的作用.通过对颜料红22进行表面处理,探讨了聚合物结构、聚合物分子量、聚合物用量对颜料分散体系分散稳定性、粒径、粘度的影响,并与普通分散剂进行了对比.实验结果表明:MM用于颜料红表面改性时适宜的特性粘度为26 mL/g;在实验范围内,当分散剂用量为1.3%时,分散体系的分散稳定性最好;马来酸酐的摩尔百分数FMAn为25.5%时,对颜料的分散稳定性较好;在水介质中,与普通分散剂相比,分散剂MM对颜料红22有良好的分散效果,有效地减少了颜料颗粒的絮凝,粒子平均粒径小,表现出优良的分散性能.     

SMA共聚物的合成及对超细颜料水性体系的分散作用

采用溶液聚合法合成了苯乙烯-马来酸酐共聚物（SMA）,用FT-IR、^13C-NMR、GPC等方法对所合成的共聚物进行了表征。结果表明,共聚物是MSM和SSM为主的无规聚合物,其分子量为27.599,多分散指数为2.35,具有较窄的分子量分布。将SMA用于超细颜料水性分散体系,发现体系的离心稳定性随SMA特性黏度的减小及马来酸酐含量的增加呈先增大后减小的趋势,加入第三单体甲基丙烯酸甲酯使分散体系的离心稳定性降低.当SMA的特性黏度为21ml/g～23ml/g,马来酸酐摩尔百分含量（FMA）为38.3%时,所制备的颜料分散液具有良好的分散性能,其黏度、粒径、表面张力均达到喷墨印花用墨水的要求。     

光固化UV仿金属皱纹（皮纹）油墨的研制与应用

紫外光固化UV仿金属皱纹（皮纹）油墨,是由聚氨酯丙烯酸树脂、环氧丙烯酸树脂、稀释剂、光引发剂及其他助剂为原料制造而成。该产品是丝网印刷的特种装饰性油墨,可广泛应用于包装印刷领域,提高产品的包装档次,使产品增值增色。     

Materials Properties of Printable Edible Inks and Printing Parameters Optimization during 3D Printing: a review

ABSTRACT

Background: Interest in additive manufacture has grown significantly in recent years, driving a need for printable materials that can sustain high strains and still fulfill their function in applications such as tissue engineering, regenerative medicine field, food engineering and field of aerospace, etc. As an emerging and promising technology, 3Dprinting has attracted more and more attention with fast manipulation, reduce production cost, customize geometry, increase competitiveness and advantages in many hot research areas. Many researchers have done a lot of investigations on printable materials, ranging from a single material to composite material. Main content: This review focuses on the contents of printable edible inks. It also gathers and analyzes information on the effects of printable edible ink material properties on 3D print accuracy. In addition, it discusses the impact of printing parameters on accurate printing, and puts forward current challenges and recommendations for future research and development.     

玻璃表面喷墨打印白色墨水的制备

本文采用分散法制备一种玻璃表面喷墨打印白色无机玻璃墨水.以烧制的无铅低熔点玻璃与白色初级色料按一定比例制成次级色料,并加入溶剂、分散剂等配制成玻璃墨水.本文对墨水的粘度、表面张力和接触角等物性进行表征,采用喷涂法进行玻璃表面涂覆实验.文中对色料的粒度、溶剂及固含量对墨水性能的影响进行了分析讨论,用SEM对墨水涂覆样品端面的微观形貌分析表征了墨水的喷涂效果.     

纳米碳化硼在水基础液中的分散稳定性

以纳米碳化硼粉体为纳米材料,聚乙二醇、羧甲基纤维素钠为分散剂,蒙脱石为抗沉降稳定剂,RO反渗透膜处理水为分散介质,采用两步法制备了水基纳米碳化硼溶液.研究了不同分散条件对纳米碳化硼在水基础液中的分散情况,并采用沉降稳定性分析、流变特性分析来评价其分散效果.实验结果表明,分散剂种类、分散剂质量分数、纳米碳化硼的粒径、纳米碳化硼的质量分数都会对溶液分散稳定性产生一定的影响.研究得出,用质量分数为0.4%的聚乙二醇(PEG600)作为分散剂、用粒径为60nm的纳米碳化硼且质量分数为0.8%～0.9%时,能够使得纳米碳化硼在水基础液中达到最佳稳定分散的效果.