固载二氧化氯的释放特性及杀菌试验研究

主要研究了酸活化剂、填充剂、pH载体等因素对固载二氧化氯释放特性的影响，得到了不同情况下的释放峰值和峰值时间及几种常见菌种达到杀菌率100％所需固载二氧化氯释放剂量。     

二氧化氯的性质、制备及应用

二氧化氯是一种新型高效的杀菌消毒剂，本文详尽地叙述了二氧化氯的性质、应用及各种制备方法，对稳定性二氧化氯及固体二氧化氯的性质、用途也做了详细的报道。     

固载二氧化氯的杀菌特性及其应用研究

以自行设计的C lO2释放量测定装置,测定了固载C lO2在不同空间中的释放量,以自然落菌法、稀释平板倾注法确定C lO2气体杀菌率,考察了固载二氧化氯释放时间、气体浓度与杀菌率间的关系和固载C lO2对多个菌种的杀菌效果。研究表明:对大肠杆菌,C lO2气体浓度仅需0.31~0.36 mg/m3,杀菌1 h,杀菌率可达到99.55%;当C lO2气体浓度在1.64~1.78 mg/m3内,欲达到100%的杀菌率,霉菌所需有效作用时间小于2 h;而枯草芽孢杆菌要达到4.5 h以上。在有效空间内,C lO2气体杀菌的浓度控制在100~1500μg/m3之间有较好杀菌效果。     

二氧化氯杀菌杀藻效果的研究

对二氧化氯杀菌杀藻效果进行了研究，考察了投药量，接触时间，ｐＨ值，氨的存在对二氧化氯杀菌效果的影响，并在相同条件下，与次氯酸钠的杀菌效果进行了比较，结果表明，二氧化氯杀菌杀藻效果优良，速度快，且不受环境ｐＨ值以及氨的影响，是一种极有前途的消毒剂。     

工业冷却循环水采用二氧化氯杀菌处理技术的可行性分析

阐述了二氧化氯安全、高效、广谱、无毒的杀菌特性，介绍了二氧化氯的性能与特点以及氯及溴杀菌剂在冷却水中的应用限制；进一步表明，二氧化氯杀菌剂基本不受循环冷却水pH值的影响，杀菌率高、剂量小，作用快。通过对二氧化氯在工业冷却水中的投加方式，以及用量、设备选型、成本概算等的分析表明；二氧化氯循环冷却水的应用具有长远的经济效益和社会效益。     

二氧化氯的生产方法及其应用

本文讨论了二氧化氯的生产原理和工艺流程，介绍了二氧化氯在杀菌消毒，除臭及纸桨漂白等方面的应用。     

含氨循环水中二氧化氯的杀菌特点

分析了含氨循环冷却水的特点和二氧化氯在此类水中的表现，重点分析了二氧化氯在硝化菌类存在下的化学变化。在总结实际应用效果的基础上，肯定了二氧化氯在含氨水中有独到的杀菌作用。提出了对含氨循环水行之有效的杀菌方案。应用该方案杀菌，完全能保证循环水中异养菌总数及亚硝酸根达到国标要求。     

二氧化氯用于水处理技术

比较了二氧化氯与氯气在消毒杀菌方面的技术优势，简要介绍了赤天化公司在生活水和循环水中使用二氧化氯的情况。     

发生和使用二氧化氯的方法和设备

本专利是关于发生一定量的二氧化氯类杀菌消毒剂的方法。该方法包括以下步骤：发生二氧化氯;将二氧化氯气体输送至杀菌室;监控杀菌室中二氧化氯气体的浓度;当二氧化氯气体浓度达到预定值时,停止向杀菌室输送二氧化氯气体。     

稳定性二氧化氯的开发和应用

稳定性二氧化氯是国际上公认的高效安全杀菌消毒剂，本文介绍了它的发展概况、优良性能、杀菌机理以及生产工艺、剂型和应用等。     

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。