共查询到20条相似文献,搜索用时 109 毫秒
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分析了世界甲醇市场格局,并对世界主要大型甲醇装置、新增甲醇产能情况进行了介绍。着重介绍了中国甲醇产业的现状,分析了我国甲醇的生产、消费、大型装置、进出口情况等。最后对影响国内外甲醇产业及市场的因素进行了分析。 相似文献
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我国聚氯乙烯行业现状与发展趋势 总被引:2,自引:0,他引:2
介绍了近年我国PVC树脂生产能力、产量、消费量、进出口,列出了主要企业产能,并与世界和日本、德国、美国的一些情况进行了比较。总结了我国PVC行业的特点,并提出了几点看法。 相似文献
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含油废水处理技术的研究与应用现状 总被引:24,自引:0,他引:24
综述了含油废水的来源、危害与分类,并对重力法、气浮法、电化学法、吸附法、超声波法和生物法等传统的含油废水处理方法的原理、优缺点及改进作了较详细的论述。分析了石油工业含油废水的特征并对现有工艺应用现状作了概述。根据目前研究现状预测了含油废水处理方法的发展趋势。 相似文献
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纸—塑复合粘合剂及其使用中常见问题探讨 总被引:4,自引:1,他引:4
本文介绍了目前国内几种常用的纸一塑复合粘合剂及使用过程中经常出现的问题和应注意的事项,讨论了问题产生的原因,并提出了解决办法。 相似文献
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Anna Rudawska Elżbieta Bociąga Ewa Olewnik-Kruszkowska 《Journal of Adhesion Science and Technology》2013,27(3):327-344
The paper presents selected aspects of the effect of primers on adhesive properties and strength of aluminium sheet adhesive joints, made using polyurethane adhesives. The strength of adhesive joints was determined based on two cure time variants: 15 and 64 h. It was found that the longer cure time at a humidity of 33% is more desired, as it leads to a substantial increase in strength of the tested adhesive joints. In addition, two variants of surface preparation were applied: degreasing and degreasing followed by the application of a primer (a pro-adhesive agent). It was observed that the primer application prior to the application of an adhesive leads to a significant increase in strength compared to the variant where the adhesive application is preceded only by degreasing. Moreover, the aluminium sheet surface that was subjected to cataphoretic painting and priming exhibits better adhesive properties. It has a higher value of both surface free energy and its dispersion and polar components compared to the surface that was only subjected to degreasing. 相似文献
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Donald J. Progar Terry L. St. Clair Akihiro Yamaguchi Shoji Tamai 《The Journal of Adhesion》1995,54(1):103-114
The poly(keto-imide), LARCTM-TPI, was developed in the late 1970's and has proven to be remarkable stable as a high temperature adhesives. Thermal aging results that were generated at both NASA Langley Research Center and at Boeing Aerospace Company proved this material to be stable in adhesive bond form for at least 60,000 hours at 232°C. A commercial form of LARCTM-TPI was made available in the mid-to-late 1980's by Mitsui Toatsu Chemicals, Inc. (MTC). Since that time, MTC has optimized the process for manufacturing LARCTM-TPI with the major improvements being in molecular weight control. Most recently, MTC synthesized a derivatized version of LARCTM-TPI which contains pendant phenoxy moieties. This material is soluble in a number of organic solvents and it exhibits outstanding melt-flow properties which make it attractive as a hot-melt-processable polyimide adhesive. The synthesis and characterization of this novel material is the subject of this research paper. 相似文献
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介绍了国产CR-224型氯丁橡胶技术性能和加工应用技术。其中可接枝的CR-244将是氯丁胶粘结剂行业很有潜力的新产品,该产品的工业化生产改善了国产CR-224不能与MMA接枝的缺陷,接枝共聚合的胶粘剂技术性能达到GB7126-86标准要求,接枝效果与A90相近。 相似文献
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国产SIS及其在胶粘剂中的应用 总被引:20,自引:2,他引:18
本文结合岳阳石化总厂橡胶厂生产的1105和1209两种新牌号的SIS的性能和结构特点,论述了SIS配制溶剂型胶剂、热熔型压敏胶、妇女卫生巾用胶粘剂的配方特点及应用情况。 相似文献
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