共查询到20条相似文献,搜索用时 62 毫秒
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聚合物加工新技术和新材料 总被引:1,自引:0,他引:1
国际聚合物加工学会[Polymer ProcessingSociety (PPS)]第8届年会于1992年3月24日至27日在印度新德里召开。出席会议的有来自印度、美国、加拿大、德国、法国、荷兰、英国、墨西哥及中国等23个国家约300人。会议收集论文220篇(其中我国15篇),分12个专题组进行:聚合及反应性加工;流变学和流变仪;模塑技术;挤出、混合和配料;纤维和薄膜;成型过程中结构变化;高分子共混与合金;高分子复合材料;液晶及其他功能聚合物;新出现的加工技术;工艺程序控制、传感元件及统计质量控制;加工作业CAD/CAM仿形。会议内容丰富,反映了当前各国在高分子 相似文献
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屏蔽电磁波干扰聚合物材料的研究进展 总被引:6,自引:0,他引:6
本文研究屏蔽电磁波干扰的方法及其屏蔽效果,着重讨论了导电涂料和导电塑料等屏蔽电磁波干扰聚合物材料的种类、特性、应用和发展。 相似文献
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发展趋势对高性能聚合物的要求首先是在较高的温度下(即约175℃~250/300℃的范围内)具有良好的机械性能和电性能。当然,这要取决于负荷的大小,持续时间的长短以及周围的介质。在许多应用领域还规定了材料应具有难燃性,烟气密度小和耐化学性高等性能。使用高性能塑料的其他原因还有:·注射成型结构件具有多功能性;·设计自由度大,易于模塑成型;·加工经济;·适应于使用温度越来越高这一发展趋 相似文献
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聚合物制造商正面临着日益严峻的来自降低生产成本及质量要求更严的压力,而集成化多变量控制技术的应运而生,对聚合装置的生产操作性能具有重要的影响和极大的经济价值。聚合反应操作所追求的主要指标是提高产品的收率,质量及操作的安全性,它的实现极为困难,需要有一种能描述聚合物特征的可靠有效的技术手段。 相似文献
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Debarupa Dutta Chakraborty L. K. Nath Prithviraj Chakraborty 《Polymer-Plastics Technology and Engineering》2018,57(10):945-957
Polymers that bear reversible massive, physical or chemical changes in response to little peripheral changes within the environmental conditions are Smart polymers, having versatility and tunable sensitivity. They have very promising applications in the biomedical field. This study will delve into the underlying principles along with entire features of these sensitive polymers and their most current and relevant applications to solve biological problems. 相似文献
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Supramolecular polymer chemistry has emerged as a major research focus within polymer science, because of the potential to improve material properties, through the combination of noncovalent interactions and synthetic polymers. As a supramolecular handle, the most useful noncovalent interaction is hydrogen bonding, which has been used extensively, because of advantages such as synthetic accessibility, directionality, fidelity, and, most importantly, responsiveness to external stimuli. This review introduces recent advances in the development of hydrogen bonding modules that can be useful for creating a variety of supramolecular polymers. Furthermore, we present selected examples of hydrogen bonded supramolecular polymers from the literature, by dividing them into three categories: supramolecular polymers assembled from small molecules, and main-chain and side-chain supramolecular polymers. 相似文献
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从电荷转移作用、离子相互作用、氢键作用组装、金属配位组装、光化学组装5个方面综述了通过分子自组装合成超分子液晶聚合物的近年来的最新研究成果,并介绍了超分子液晶聚合物的应用及发展前景。 相似文献
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Recent advances in polymer shape memory 总被引:1,自引:0,他引:1
Tao Xie Author Vitae 《Polymer》2011,52(22):4985-5000
Traditional shape memory polymers (SMPs) are those capable of memorizing a temporary shape and recovering to the permanent shape upon heating. Although such a basic concept has been known for half a century, recent progresses have challenged the conventional understanding of the polymer shape memory effect and significantly expanded the practical potential of SMPs. In this article, notable recent advances in the field of SMPs are highlighted. Particular emphasis is placed on how the new developments have changed the conventional view of SMPs, what they mean for practical applications, and where the future opportunities are. 相似文献
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