DS-1高硅奥氏体不锈钢板在硫酸工业中的应用

根据硫酸工业生产的需要,研制了用于高温浓硫酸的DS-1高硅奥氏体不锈钢板材,在合金成分的设计和制造工艺获得成功后,将该种材料投入了工业化应用,用于硫酸生产装置中的干燥塔和吸收塔作为内衬及填料支撑装置(代替瓷砖砌筑),以及用于制造分酸器。经过几年的使用实践证明,DS-1、DS-2高硅奥氏体不锈钢不但具有优良的耐热浓硫酸腐蚀性能,而且具有良好的冷热成型工艺性能和焊接性能。     

高硅奥氏体不锈钢在高温浓硫酸中的应用与前景

针对高硅奥氏体不锈钢在高温浓硫酸中优异的耐腐蚀性能,自行研制了DS系列高硅奥氏体不锈钢,其中DS-1用于板材,DS-2用于铸件。阐述了DS-1板的力学性能和耐高温浓硫酸的腐蚀速度,介绍了DS-1板代替耐酸瓷砖用于硫酸装置干吸塔衬里,以及DS-2用于塔内填料支撑装置相关部件和管式分酸器喷嘴的使用情况。若用Ds系列高硅奥氏体不锈钢制作其他设备和管件等,可不设阳极保护系统,应用前景广阔。     

DS-1高硅奥氏体不锈钢板内衬硫酸干吸塔

介绍DS-1高硅奥氏体不锈钢板内衬硫酸干吸塔的总体结构、材料选择、填料支撑及分酸器设计。DS-1在浓硫酸中的腐蚀速率为0．01—0．05mm／a。在14mm厚碳钢板上内衬2．0—2．5mm厚DS-1不锈钢板，较之传统的碳钢内衬瓷砖结构具有设备重量轻、防渗漏性好、耐腐蚀、施工方便快速等优点。新型大开孔率(约80％)DS-2合金铸箅子板及嵌镶DS-2合金精铸喷嘴的分酸器的使用，改进了气液间的接触，降低了填料高度和能耗，因此可节省综合投资约10％。     

高温浓硫酸用XDS-1高硅奥氏体不锈钢的研制与应用

介绍了高温浓硫酸用高硅奥氏体不锈钢的国内外开发情况,分析了它的合金设计和合金化原理,研究了XDS-1高硅奥氏体不锈钢板材的力学性能和耐腐蚀性能,并举例介绍了XDS-1高硅奥氏体不锈钢在硫酸生产中浓酸系统的塔设备、泵阀和管道的应用效果,认为国产的XDS-1高硅奥氏体不锈钢使用效果良好,可推广应用。     

高温浓硫酸用XDS不锈钢板材的研究

根据合金设计的理论，对高温浓硫酸用不锈钢进行全面的改性研究，进而开发出新型耐高温浓硫酸用不锈钢板材XDS。比较并论述了XDS不锈钢在高温浓硫酸中的力学性能和耐腐蚀性能，认为XDS不锈钢已达到国际先进水平，为制造硫酸厂的干吸塔、酸泵等设备提供了优异的钢材，也为低温热回收系统的应用创造了条件。     

烧结法微晶玻璃装饰板材的研制

用烧结法生产工艺成功地研制出规格为300×300mm、400×400mm、400×600mm、400×900mm,厚度为8～15mm的微晶玻璃装饰板材,其理化性能达到或超过天然花岗岩。本文用XRD和SEM研究了玻璃的析晶类型和形貌,讨论了影响工艺过程的诸因素。     

聚碳酸酯板表面热压抛光

采用无机玻璃热压抛光技术,制得了PC板材600×400×4～12mm,其光学性能优良。介绍了原理、设备、模具、工艺、板材性能及应用。     

高铬铁素体不锈钢制造硫磺制酸干吸设备探讨

针对高温浓硫酸腐蚀性强,高硅奥氏体不锈钢价格随金属镍价格而上涨等因素,介绍了硫磺制酸干吸系统塔设备用材质的技术进展,阐述了高铬铁素体不锈钢的优点和超低碳高铬铁索体不锈钢对200℃、98％H2SO4浓硫酸优良的耐腐蚀性能,以及它们在干吸系统设备中的应用情况,认为高铬铁素体不锈钢在高温浓硫酸中的应用前景广阔。     

DS-长效含硅润滑脱模剂研制

本文介绍DS-长效含硅润滑脱模剂的合成方法和主要性能，该产品适用面广、原料易得、工艺可行．适合城乡中小企业生产．具有明显的经济效益和社会效益。     

专利摘要

申请号：200910032196发明名称：一种高硅氧玻璃纤维带及其制造工艺申请人：中材科技股份有限公司本发明公开了一种高硅氧玻璃纤维带及其制造工艺,以原始钠硼硅酸盐玻璃纤维原纱为原料,制造工艺包括坯带织造、酸沥滤、水清洗、热处理、后表面处理等。经过上述工艺制备的高硅氧玻璃纤维带,二氧化硅含量大于96％,可以用于缠绕成型等特殊规格产品,使得产品具有可设计加工性。广泛应用于特殊部件的制作和军工产品的防热材料。     

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.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

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.     

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.     

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。