阳离子双硬脂酸酰胺的制备及其在中性施胶中的应用

以单硬脂酸甘油酯、二乙烯三胺、硫酸二甲酯为原料,制备了自乳化的阳离子双硬脂酸酰胺施胶剂,并用其进行纸张中性施胶实验。结果表明,在反应温度125℃、反应时间2.5 h的条件下,制备的阳离子双硬脂酸酰胺乳液具有良好的留着性和抗水性;该施胶剂在中性条件下施胶效果良好,草浆抄纸时,用量为1.0%时施胶度超过14 s,木浆抄纸时,用量达到0.2%即可产生施胶效果;且该施胶剂对纸张纤维有疏松、增厚作用,施胶剂用量1.0%时,纸张柔软度可提高20%,厚度增加10%。     

PAC及其复合物电荷密度的影响因素分析

研究了聚合氯化铝(PAC)的电荷密度与盐基度的关系、PAC及其复合物电荷密度的影响因素,并用PAC及其复合物作为施胶沉淀剂,以PAC及其复合物改性阳离子松香胶和AKD为施胶剂,在中碱性条件下进行施胶。结果表明,PAC及其复合物电荷密度对施胶有较大影响,在加入相同电荷量的PAC及其复合物时,高电荷密度PAC复合物比高纯PAC获得更高的施胶pH值和更满意的施胶度,PAC及其复合物改性阳离子松香胶对AKD的施胶有增效作用。     

牛仔布生产工艺中的主要问题分析

对牛仔布生产的主要工艺，如经纱的染色、上浆、牛仔布织造、后整理等工序中易发生的主要问题进行了探讨与分析，提出了解决方案，以保证牛仔布的颜色、色泽、手感、布面风格、洗后缩率等不产生偏差。     

木素型造纸化学品

本文介绍了木素及其衍生物用于助留助滤剂、施胶剂、染料、增强剂等的情况,说明以木素为原料可以开发出用于造纸的各种化学品--木素型造纸化学品.     

涂布纸张翘曲变形原因及解决方法

介绍纸幅在涂布过程产生翘曲的原因以及消除和控制纸幅变形的措施。     

Hybrid electric power plant sizing strategy based on ab-initio fuel cell design for weight minimization

This work presents a methodology for the design of a hydrogen fuel cell-based hybrid electric power plant for hybrid electric vehicles (HEV), where a battery bank and ultracapacitors are also considered as components of the hybrid power plant. The methodology considers the design features of an electric vehicle and evaluates its energy and power requirements as to fulfil a driving cycle. The work starts by weight minimizing a fuel cell taking into consideration its physical and electrochemical characteristics. Batteries and ultracapacitors are then sized according to their dynamic response features and considering specifications from commercial candidate cells, to propose an electric configuration and specify the baseline for a hybrid power plant. In order to illustrate the methodology, a crossover utility electric vehicle and a WLTC class I drive cycle are used. This work shows that by reducing the power plant size, power and energy requirements can also be minimized and the overall performance can be increased promoting fuel and costs savings. For comparison and to show the impact of weight minimization on the energy on board and cost, this work presents the energy and power required by different power plant configurations. Results showed that including ultracapacitors to the power plant offers more benefits, such as less stress on batteries, at a marginal initial cost compared to a case without ultracapacitors, where batteries should attend transients with a limited capability for energy recovery from regenerative breaking. The methodology is easily implemented and does not large computational resources providing with a power plant baseline for further design stages, such as particular energy management approaches depending on particular priorities for the developer, such as range, productivity and performance, economy and others.     

含氟丙烯酸酯共聚物表面施胶剂的制备及应用

以2-(N-甲基全氟辛烷基磺酰基)乙基丙烯酸酯(FM),丙烯酸丁酯(BA)、苯乙烯(St),甲基丙烯酸二甲胺乙酯(DM)为原料,采用无皂乳液聚合制得了阳离子含氟丙烯酸酯四元共聚物乳液.单独使用含氟乳液对纸张进行表面施胶,水和油滴在纸张上所成接触角最大可分别达到107.和93.,同时纸张的抗张强度、耐折度、白度分别提高12.46%、68.42%、0.66%.将淀粉和含氟乳液以不同质量比复配应用,讨论了复配体系对纸张防水防油性、强度、白度的影响.最后初步探讨了含氟乳液的施胶机理.     

阳离子施胶增效剂的合成及应用

以丙烯酸甲酯、苯乙烯、丙烯酰胺、阳离子单体等为主要原料,采用无皂乳液聚合法合成了系列阳离子乳液,详细研究了聚合反应条件对其性能的影响,并与阴离子分散石油树脂胶分别对麦草浆和木浆进行协同施胶实验.结果表明,在乳液用量为0.2%(对绝干浆料)时,麦草浆纸页施胶度增幅可达33%,白度增加5.2%ISO;木浆纸页施胶度增幅可达37%,白度增加4.2%ISO.     

阳离子含氟PUA表面施胶剂的制备及应用

为制备一种能够明显提高纸张施胶效果和印刷性能的聚合物表面施胶剂,以2,2,3,4,4,4-六氟丁醇甲基丙烯酸酯(FA)、苯乙烯(St)、丙烯酸丁酯(BA)为单体,在交联聚氨酯溶液(PU)中通过溶液聚合相转化法制得阳离子含氟聚氨酯-丙烯酸酯复合乳液(FPUA)表面施胶剂.用FT-IR、TEM和纸张物理性能检测的手段对聚合物结构、乳胶粒子形态以及应用性能进行了表征.实验结果表明,以质量分数为1.0%的FPUA进行表面施胶时,可使纸张的施胶度和拉毛速率分别达到9.50 s和2.80 m/s以上,油墨吸收率为26.0%～29.0%;乳胶粒子呈球形,其粒径约为230nm.     

云花皱织物的设计与开发

设计与开发了云花皱织物。络筒工序以"高车速、小张力、降毛羽、提产量"为工艺原则;整浆联合工序以"高车速、贴伏毛羽、减磨兼顾增强"为工艺原则;银丝不上浆,按照色经排列要求放在相应的伸缩筘中,并控制好张力;银丝和黑色花式线应穿在规定的综框;织造工序以"高车速、大张力、早开口"为工艺原则。经过对织造准备工序和织造工序的优化使得织造效率达到90%以上,下机一等品率达到93%,入库一等品率达到99%。