巴西乙醇生产及其产业链的拓展

介绍了巴西乙醇生产、消费及其产业链的拓展.到2007年底,巴西约有400座乙醇工厂,已有超过500万辆汽车采用混合燃料乙醇汽油.巴西乙醇生产不断扩能,将向世界其他地区增加出口.巴西基于甘蔗原料以乙醇生产乙烯和丙烯,并发展生物乙醇拓展塑料产业链,生产聚乙烯.     

纳米SiC、纳米Al2O3及其复合粉体的分散性研究

以六偏磷酸钠为分散剂,水为分散介质,研究了纳米Al2O3纳米SiC单相粉体以及Al2O3／SIC复合粉体悬浮液的分散性。研究结果表明,通过加入适量的分散剂,改变分散介质,调节pH值,可以获得分散性良好的纳米Al2O3纳米SiC及其复合粉体的稳定悬浮液;蒸馏水是较好的分散介质;球磨、六偏磷酸钠的用量、pH值对纳米Al2O3粉体、纳米SiC粉体及其复合粉体的分散影响很大。     

纳米CuO对3Y-PSZ陶瓷材料烧结与机械性能的影响

研究了微量（07～0.15mol％）CuO添加剂对3Y-PSZ陶瓷材料烧结和机械性能的影响。适量添加CuO可以促进5Y-PSZ的烧结并提高材料力学性能。经1500℃下2h烧成,添加0,45mol％纳米CuO的试样具有最高的抗弯强度和断裂韧性,其值分别为620MPa和12.2MPam1／2,比同样条件制备的纯3Y-PSZ分别提高了38％和46％。     

我国催化剂将进入新的发展周期

据悉，中国石化与其控股公司上海石化近期签署了催化剂资产收购协议，经评估，该催化剂资产为4991．62万元，定价为4991．62万元。此项收购虽然金额不大，却标志着中石化对我国催化剂行业整合的开始。我国的催化剂行业目前仍然比较分散，集中度较低，不能适应未来发展需要。因此中石化通过业内整合充分利用研发优势，以打造亚太地区最强的催化剂企业。从行业发展看，催化剂市场有较大的潜力。目前，世界聚乙烯和聚丙烯的产量大约为8000万t／a，     

拜耳：不断投资中国实现企业增长与技术发展双丰收

在上海市市长韩正和拜耳材料科技集团董事会主席诺仁博博士、拜耳材料科技北美自由贸易区总裁Greq Babe及拜耳材料科技聚氨酯全球总裁Peter Varlacker，拜耳材料科技大中华区发言人戴慕博士的见证下，与上海化学工业区发展有限公司阮延华主任共同签署了一份在中国上海化学工业区的拜耳MDI工厂与相关设施采用先进工艺技术的协议。该签署仪式于2005年4月1日举行，正值上海市市长韩正访问位于美国德克萨斯州休斯顿柏镇工业区的拜耳工厂。     

交流促进发展——2007韩中国际陶瓷交流展漫谈

继港台、东南亚紫砂热之后,韩国紫砂热正在悄然形成。加上历史渊源、文化背景、地理方面的因素,近年来韩中陶艺交流日见频繁。2004年春,毛国强、杨勤芳等携200余款砂艺作品在汉城(今韩国都城     

新一代Vinail(R)硬木用水基胶粘剂——远超出木材破坏

在非承载类硬木结构中使用水性热塑性胶粘剂,要求最终胶接接头具有较高的机械性能(高于木材本身)和抗蠕变性.当胶接接头受到静负荷作用时,其机械性能会受到胶粘剂本身性能和木材类型的影响,即与胶粘剂和基材之间密切相关.选取化学成分相同、合成路径不同的两类聚合物,并参照国际标准[12]对胶粘剂的相关性能进行光谱分析、量热分析、形态结构分析和测试.有趣的是,两例胶在剪切试验中表现出显著差异:一类导致被粘基材的内聚破坏,另一类导致被粘基材表面的胶粘剂破坏.由此可知,所测试聚合物所表现出的不同机械性能与粘接机理有关.因此,本文合成了新一代Vinavil水基聚合物胶粘剂,由于采用新颖的前瞻性技术,其特殊性能显而易见,且远超过传统标准.     

载体车间干燥系统工艺参数确定与设备更新

通过大量实验,系统地研究了物料厚度、空气流速和干燥温度等对湿物料干燥速度及物料外表的影响.经实验分析并结合理论知识,确定了最佳干燥工艺参数,在此基础上,制定了改造方案,解决了原设备存在的诸多问题.经过7年的生产实践,设备改造较成功,有显著的经济效益.     

2012～2013年世界塑料工业进展

收集了2012年7月~2013年6月世界塑料工业的相关资料,介绍了2012~2013年世界塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况。按通用热塑性树脂(聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、ABS树脂),工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚),特种工程塑料(液晶聚合物、聚醚醚酮),通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍。     

化学是宇宙之源——"成也化学,败也化学"刍议之一

宇宙间一切物质和自然现象都有其本质性的规律,化学就是研究、阐述和利用这些规律的科学.本文的基本观点是认定"化学是宇宙之源"以及"成也化学,败也化学",即自然界一切物质和物体的诞生、存在、运动、发展和衰亡都是出于化学根源,而不是其化的因素.     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料，介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比，介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序，对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.