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本文介绍一种生产聚烯烃泡沫塑料块料的独特的氮气热压罐工艺.最新的产品开发包括茂金属基催化聚烯烃泡沫塑料.文章对这些材料的性能和可能的用途进行了讨论. 相似文献
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唐伟家 《现代塑料加工应用》2004,16(2):56-56
据“Modem Plastics,2004,81(1):27”报道,美国RobertEller公司的一份关于汽车内饰件的最新研究报告披露,几种聚烯烃泡沫塑料正在不断挑战聚氨酯泡沫塑料在许多方面的应用。 报告题名为“汽车内装饰件表层、泡沫、涂复纤维、织物和隔声系统”,着重阐述了从化学交联聚烯烃发泡板到门装 相似文献
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一、前言 有两大类泡沫塑料需要使用臭氧耗损物质(ODS)作为发泡剂。 1.使用CFC—11作为发泡剂的硬质聚氨酯泡沫塑料和低密度(30~15kg/m~3)软质聚氨酯泡沫塑料。 2.使用CFC—12作为发泡剂的挤出热塑性泡沫塑料,其品种有聚苯乙烯和聚烯烃两 相似文献
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<正>泡沫塑料具有质轻、隔热、缓冲、绝缘、防腐、价格低廉等优点,因此在日用品、包装、工业、农业、交通运输业、军事工业、航天工业得到广泛应用,我国20世纪90年代以来泡沫塑料的发展十分迅速。泡沫塑料主要品种有聚氨酯(PU)、聚苯乙烯(PS)和聚烯烃泡沫塑料三大类。PU发泡材料在发泡过程中存在对人体有害的异氰酸酯残留 相似文献
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[美国《现代塑料》2004年第1期报道]1份关于汽车内部装饰的研究报告称,近来许多汽车内饰件呈现出聚烯烃(PO)泡沫塑料取代聚氨酯(PUR)材料的发展趋势。 相似文献
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通过烯类双键自由基聚合固化的非水液态涂料组合物;改性废旧聚苯乙烯泡沫塑料涂料;自主创新发展清洁树脂生产工艺——氯化聚烯烃树膳在涂料中的应用豆发展趋势;[编者按] 相似文献
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This article aims to provide a state-of-the-art assessment of the research work carried out so far in microbubble-aided transport processes. The different methods of microbubble generation and the properties of microbubble have been reported in this article. The different components that constitute the microbubble are also discussed. The characteristics of microbubble are pointed out. The measuring methods of zeta potential in microbubble system are described. This article provides an update of important research works in the microbubble technology. This article also reports the important future research scope and their significance in the microbubble flow system. For researchers, this article may be useful for further research in microbubble technology. 相似文献
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我国苯甲酸钠生产应用及市场趋势 总被引:4,自引:0,他引:4
叙述了苯甲酸钠的国内生产及应用状况,重点叙述了作为防腐剂的应用情况,对其他几种新型防腐剂作了比较,并分析了苯甲酸钠的发展趋势。 相似文献
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An earlier article has compared the perceptual scaling of the Munsell, NCS, DIN, Coloroid, and OSA-UCS colour order systems. This article expands on the earlier article by presenting a comparison of the Colorcurve and SCA-2541 [Swiss Colour Atlas] colour order systems, again using the OSA- UCS system as a reference model. To enable direct comparison with the earlier article, the same varied but systematic sets of OSA- UCS cleavage planes were used in this new comparison. To enable comparison between these systems, and the Munsell, NCS, DIN, and Coloroid systems, thejndings are graphically presented in a format similar to that used in the earlier article. © 1994 John Wiley & Sons, Inc. 相似文献
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A trial was made to design and prepare rubber article that can be used to reactivate, strengthen, and reinforce the hand muscles and fingers which had suffered from trouble movement. The investigated rubber article was prepared from natural and acrylonitrile rubber formulations. These formulations were processed in the form of compounds which contain significant quantities of fillers such as Hisil, CaCO3, and TiO2. The rheological characteristics and physicochemical properties of the vulcanizates were determined according to standard tests. It was found that it is possible to prepare the designated rubber article for the desired purpose. The test results showed that the prepared rubber article had good chemical resistance against acid, alkali, and salt. This rubber also possessed high resistance to deterioration and deformation. The prepared article had an ability to retain its elastic property after the action of compressive forces at 70°C for 24 h. This property was confirmed by its application in commercial therapeutic hand-exercise article. 相似文献
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离心机应用中的腐蚀问题 总被引:1,自引:1,他引:0
介绍了腐蚀现象在离心机设计和应用中容易忽视的一些问题,提出了几种腐蚀现象的影响及其危害,并从结构设计和其它防护方面进行了分析,以供相关人士探讨。 相似文献
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本文从生漆的科学属性出发,着重阐述战国时代的楚国漆艺。对于楚国漆器所表现出的纷繁的面貌,尝试进行了分期研究,根据已出土的大量实物,按照楚国国家的发展进程分为三个主要时期,并对漆器与青铜器、陶器在造型上的承袭关系,不同时期内漆器的制作工艺、造型特征和装饰纹样作出了分析、比较。本文还对中国漆器的发展如中国用漆的起源和"漆政"问题做出了探讨。 相似文献
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