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101.
不同情况下氧化剂对玉米淀粉粘合剂质量的影响 总被引:4,自引:0,他引:4
本文研究和讨论了以KMnO4、H2O2、NaClO为氧化剂氧化玉米淀粉制备粘合剂,不同的介质条件、温度、氧化剂用量和催化剂的使用对玉米淀粉粘合剂的质量产生影响.通过实验和研究给出了制备玉米淀粉粘合剂的最佳条件,并且讨论了产品贮存稳定性和氧化剂的关系 相似文献
102.
本文通过介绍辽宁地区常用的JGN—I建筑植筋粘合剂(A级)改性环氧树脂类双组份结构胶在施工应用中容易出现质量问题的环节,并分析成因,就其操作工艺提出质量控制的关键工序,供施工人员参考。 相似文献
103.
Analysis and design techniques for cooperative flocking of nonholonomic multi-robot systems with connectivity maintenance on directed graphs are presented. First, a set of bounded and smoothly distributed control protocols are devised via carefully designing a class of bounded artificial potential fields (APF) which could guarantee the connectivity maintenance, col ision avoidance and distance stabilization simultaneously during the system evolution. The connectivity of the underlying network can be preserved, and the desired stable flocking behavior can be achieved provided that the initial communication topology is strongly connected rather than undirected or balanced, which relaxes the constraints for group topology and extends the previous work to more generalized directed graphs. Furthermore, the proposed control algorithm is extended to solve the flocking problem with a virtual leader. In this case, it is shown that al robots can asymptotically move with the desired velocity and orientation even if there is only one informed robot in the team. Finally, nontrivial simulations and experiments are conducted to verify the effectiveness of the proposed algorithm. 相似文献
104.
This paper investigates distributed flocking problem where the information exchange among agents is modeled by the communication topology changing with time. Previous research on this problem establishes group stabilization by assuming that the dynamic topology is connected all the time, which however cannot be guaranteed by most proposed distributed control laws. In this paper, a distributed algorithm to distill a necessary subgraph of the initial communication topology is presented. This subgraph covers all the vertices of the communication topology and is proved to be connected as long as the initial communication topology is connected. A distributed control law is then designed to pursue the flocking motion while preserving all the edges in this subgraph. In this way, connectivity can be preserved all the time, and flocking problem is thus solved only provided the initial communication topology of multi-agent system is connected. 相似文献
105.
近年来,水下应用技术发展迅猛,水下作业设备的性能不断提高,从而需要气密性更高的配套零部件。但由于金属与橡胶(或树脂)材料的热膨胀系数不同,所以在镶嵌塑压成型以后,成型零件的气密性较差,无法满足深水作业环境的要求。而将开姆洛克(CHEMLOK)热硫化胶粘剂应用于镶嵌塑压过程,可以解决上述问题,使零件的气密性得到较高的提升。 相似文献
106.
3—叠氮甲基—3—硝酸酯甲基氨丁烷均聚醚合成及性能 总被引:2,自引:0,他引:2
研究3-叠氮甲基-3-硝酸酯甲基氧丁环均聚醚的合成及性能。采用BF3.Et2O作引发剂,BDO为助引发剂,合成出均聚醚PAMNO。采用DSC测定了PAMNO的分解温度、分解焓、玻璃化温度,及其与HMA,HNIW,Al及AP的相容性。测定了PAMNO的机械感度。 相似文献
107.
卡拉胶在食品工业中的应用 总被引:4,自引:0,他引:4
隋战鹰 《沈阳师范学院学报》2001,19(1):54-57
介绍了卡拉胶在食品工业中的一些主要作用,卡拉胶作为一种添加剂在食品制作过程中,可用作凝固剂,增稠剂,乳化剂,悬浮剂,粘合剂,成型剂和稳定剂。 相似文献
108.
Xiong-Zhi Wu Yu-Jiao Li 《复旦学报(自然科学版)》2005,44(5):891-892
In present trade mark adhesives for beer bottle labeling are mostly prepared based on starch, polyvinyl formal and their derivants ,but they can only be applied to the labeling speed of 20 000 bottle/h and their water proofness are not satisfactory, especially when the water temperature is 0℃ below. The application of metal foil requires that sealing and labeling must be finished at the same time, but different penetrating speed of water in metal foil and paper label causes different drying speed, and also, the labeling speed and need of iced beer are increasing now, so these changes result in more strict requirements for adhesive. 相似文献
109.
PVC人造革静电植绒胶调制方法的改进 总被引:2,自引:0,他引:2
为简化PVC人造革静电植绒胶的调制工艺,用高纯度的水及在线自制的N-羟甲基丙烯酰胺作交联剂,免去除阻聚剂的方法,所得的聚丙烯酸酯乳液在调胶时只加入氨水即可,无须加入三聚氰胺。 相似文献
110.