废次钛白粉硫酸法再制备TiO2工艺条件的研究

研究了废次钛白粉硫酸法再制备锐钛型TiO2的工艺条件。通过试验确定了最佳的工艺条件，为在现有硫酸法钛白生产线上进行工业化生产提供依据，也为废次钛白再生产找到了可行的途径。比较了本工艺与硫酸法钛白生产的工艺条件得知，本工艺可省去絮凝净化。冷冻结晶两工序，洗涤、过滤的时间也大大缩短。     

微锌纺丝工艺研究

介绍了以含锌废水标本兼治为目的，以调整工艺条件为手段的微锌纺丝工艺研究。对工艺试验条件、纺丝成形效果、成品物理机构性能以及去酸废不中的锌含量进行了分析对比验证。以试验最佳工艺条件，可生产达到国际标准一等品水平的粘胶丝。     

导电涂料用片状镀银铜粉的研制

介绍了化学合成法制备导电涂料用片状镀银铜粉的新方法，具有工艺简单、成本低等特点。讨论了工艺条件对镀银铜粉的粒径及形貌的影响，并确定了最佳的工艺条件。     

甲基三甲氧基硅烷合成工艺研究

本文对合成甲基三甲氧基硅烷的各种工艺路线进行了试验比较，选择了合适的工艺路线；在此基础上进行条件工艺试验，得出了较佳工艺条件。     

有机硅泡沫稳定剂的研究和应用

采用新型铂络合物高效催化剂、无溶剂合成工艺，研制了硬泡用泡沫稳定剂。探讨了合成工艺条件，并介绍了工业应用情况。试验得出无溶剂合成工艺的最佳工艺条件为：反应温度１３５￣１４５℃，反应时间２￣２．５ｈ，催化剂用量６μｇ／ｇ。     

丁二酸与甲醇单酯化的研究

丁二酸与甲醇在无催化剂的条件下进行单酯化反应，考察了醇酸摩尔比、反应温度、反应时间等因素对丁二酸甲醇单酯化产物酸值的影响，通过正交实验得到单酯化反应的最佳工艺条件；在最佳工艺条件下实验重复性良好，并与其它酯化工艺进行了对比。     

PVC金属板实验室小样贴塑工艺

PVC金属板在进入生产线贴塑前，先做好取小样在实验室进行试验，确定贴塑的工艺条件，然后再在生产线上进行贴塑，尤其是当PVC膜、PVC胶、金属板三者中有任何一种材料发生变化。更应做小样来确定贴塑的工艺条件，这是有很大作用的。该文详细介绍了PVC金属板小样试验贴塑的工艺及其条件．并对影响工艺条件的主要因素进行了讨论。     

二相法制备聚乙烯醇缩丁醛最佳条件的探讨

叙述了以聚乙烯醇、丁醛为原料在盐酸为催化剂条件下，缩合反应最佳工艺条件的选择．介绍了配方及工艺条件的试验结果．     

悬浮法聚氯乙烯生产技术研究要点

介绍了采用悬浮法生产PVC树脂过程中需要注意的问题，包括质量指标，工艺条件及合成工艺中的各种助剂选用原则、种类、复配使用和用量。提出聚合工艺过程的技术要点是改善工艺条件、缩短反应和聚合辅助时间。     

环已胺己二酸盐的制备研究

环已胺己二酸盐是一种新型的环保垂有机合成材料，广泛应用于助焊添加剂。文章介绍了以环己胺和己二酸为原料合成环己胺己二酸盐原理和工艺条件，讨论了反应温度、合成比倒、加入水量、干燥温度等条件对环己胺己二酸盐的影响，最终获得最优工艺条件。结果表明，该合成工艺路线简单、安全，稳定性好，获得的产品纯度高，不含卤素，安全环保。     

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。