Tritonx—80—OP—BaSO4浓度法对煤焦中总硫的测定研究

研究了用浊度法对煤焦中总硫的测定条件及方法，Ｂａ＾２＋和ＳＯ４＾２－在酸性环境中，Ｔｒｉｔｏｎｘ－８０－ＯＰ混合液存在的条件下，能形成较稳定的均匀分布分散体系，在波长４２０ｎｍ处，用３ｃｍ比色皿，采用可见分光光度计测定吸光度，显色时间为２０ｍｉｎ；检测范围为０．０６￣１．００ｍｇ／５０ｍｌ；ＳＯ４＾２－ｌｋｄ ｎｈ ｙｘ ９０．０￣１０３．３％，样品测定结果标准偏 ０．０１４￣０．０１５。     

液体肥料中钼的测定

提出了以硫氰酸钠光度法测定速效复合液肥中钼的含量。钼在０￣４．０μｇ／ｍｌ浓度范围内符合比耳定律,相关系数γ＝０．９９９７,摩尔吸光系数ε４７０＝１．１４×１０＾４Ｌ·ｍｏｌ＾－４Ｌ·ｃｍ＾－１,方法的绝对误差为－０．０１３￣＋０．０１％,ＳＤ＝０．００４￣０．００５％。ＲＳＤ＝２．６７￣２．９９％。     

锦西大化肥高碱高硬水处理配方的研究和应用

对于水质为高碱高硬的循环冷却水补水，作者新研制了一种水处理配方ＪＳ－１０１，基动态模拟试验评定极限污垢热阻为２．８７×１０＾－５ｍ＾２．ｈ．℃／ＫＪ，平均腐蚀速度为０．０３６ｍｍ／ａ，现场应用时循环冷却水中「Ｃａ＾２＋＋碱度」可稳定在１０５０ｍＬ以上，ＪＳ－１０１配方具有很好的阻垢和缓蚀性能，使换热器能够满足生产的需要。     

废水处理系统结垢现象的研究

本文通过对废水处理系统中与废水接触的设备和构筑物表面所形成的污垢的成份分析，确定出在酸性工业废水中和处理系统中污垢的主要成份为ＣａＳＯ４（可含两个结晶水）；其含量占７４．４￣９４．８％，在生化处理系统中污垢的主要成份为ＣａＣＯ３，含量占９５．７￣９６．３％。探讨了污垢的形成机理，阐述了废水中Ｃａ＾２＋，ＳＯ４＾２－以及ＣＯ３＾２－离子的来源，提出了减轻结垢现象应采取的措施。     

废水处理系统结垢现象的研究

通过对废水处理系统中与废水接触的设备和构筑物表面所形成的污垢的成份分析，确定出在酸性工业废水中和处理系统中污垢的主要成份为ＣａＳＯ４（可含两个结晶水）；其含量占７４．４￣９４．８％，在生化处理系统中污垢的主要成份是ＣａＣＯ３，含量占９５．７￣９６．３％，探讨了污垢的形成机理，阐述了废水中Ｃａ＾２＋，ＳＯ４＾２－１以及ＣＯ３＾２－离子的来源，提出了减轻结垢现象应采取的措施。     

耐磨Ni－SiC复合电镀及其应用

含ＳｉＣ最高达１１％的Ｎｉ－ＳｉＣ复合镀层的镀液配方及操作条件为：Ｎｉ（ＳＯ_３．ＮＨ_２）_２·４Ｈ_２Ｏ４１０，ＮｉＣｌ_２·６Ｈ_２Ｏ１０，Ｈ_３ＢＯ_３５０，ＯＰ－１００．４及ＳｉＣ（３μｍ）２０－１２０ｇ／Ｌ，ｐＨ４，５５±２℃，５Ａ／ｄｍ￣２，需搅拌．     

COD/SO42-比值对硫酸盐去除率影响的研究

研究利用ＵＡＳＢ反应器,在水力停留３．８ｈ,ＳＯ＾－２４负荷为６－７ｋｇ／（ｍ＾３．ｄ）,ＳＯ＾－２４浓度为１０００ｍｇ／Ｌ条件下,研究了ＣＯＤ／ＳＯ＾２－４比值对ＣＯＤ和ＳＯ＾２－４去除率的影响,同时分析了硫酸盐不原菌和产甲烷菌对ＣＯＤ的竞争情况。     

理化因子对嗜盐隐杆藻细胞生长及胞外多糖产量的影响

比较不同ＮａＣｌ、Ｃａ２＋、ＰＯ３－４等离子浓度对嗜盐隐杆藻（Ａｐｈａｎｏｔｈｅｃｅｈａｌｏｐｈｙｔｉｃａ）细胞生长及胞外多糖（Ｅｘｏｐｏｌｙｓａｃ－ｃｈａｒｉｄｅＥＰＳ）产量的影响。在各影响因子不同浓度的培养条件下,０．５ｍｏｌ／Ｌ的ＮａＣｌ、１．０ｇ／Ｌ的Ｃａ（ＮＯ３）２·４Ｈ２Ｏ、０．１ｇ／Ｌ的ＫＨ２ＰＯ４分别是其最佳生长浓度。ＥＰＳ的产量在０．５ｍｏｌ／ＬＮａＣｌ、,０．５ｇ／ＬＣａ（ＮＯ３）２·４Ｈ２Ｏ、０．５ｇ／Ｌ的ＫＨ２ＰＯ４培养条件下最高。在较低的Ｃａ２＋、Ｍｇ２＋、ＰＯ３－４浓度下可提高ＥＰＳ产率。     

C9—MA水溶性树脂与HEDP复配系统的阻垢性能研究

研究了Ｃ９－ＭＡ水溶性树脂与ＨＥＤＰ复配后的阻垢性能及ＣａＣＯ３含量,ＰＨ值和矿经度对阻垢率的影响。当配比为：ＣＯ－ＭＡ树脂２０ｍｇ．Ｌ＾－１,ＨＥＤＰ０．３ｍｇ．Ｌ＾－１。     

间歇式活性污泥法处理腈纶废水的研究

进行了ＳＢＲ工艺处理腈纶废水的试验。结果表明,在进水ＣＯＤ浓度为３０００￣４０００ｍｇ／Ｌ、进水溶积负荷为２．０ｋｇ ＣＯＤ／ｍ＾３·ｄ时,出水浓度在４００￣６００ｍｇ／Ｌ之间,去除率为７５％￣８５％。硝化效果很好,出水ＮＨ３－Ｎ小于１０ｍｇ／Ｌ,达到排放标准。腈纶废水中主要污染物为ＤＭＦ（二甲基甲酰胺）,用本法处理后,产生难于生化氧化的氮氧物质,需进一步处理,因此ＳＢＲ工艺目前适合作为预处理手段     

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.     

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.