TZP(Al_2O_3)质泡沫陶瓷过滤器

研究了TZP（A12O3）材质泡沫陶瓷过滤器的制备工艺。结果表明，泡沫陶瓷过滤器的烧结滞后于普遍压制成型的试块，于1550℃左右烧成的过滤器强度可达1．5MPa；过滤器加热至1100℃保温数分钟空冷后，强度有回升现象。产生上述现象的机理有待于进一步分析。     

Fe_3Al滤芯在壳牌煤气化中的应用浅析

针对shell煤气化工艺中飞灰过滤器滤芯进行探讨,对陶瓷滤芯、Fe_3Al滤芯优缺点进行对比分析,并结合实际运行经验对陶瓷滤芯、Fe_3Al滤芯进行对比总结,Fe_3Al滤芯在实验条件下,多孔性能和力学性能均优于陶瓷滤芯,在运行过程中合成气中的H_2S会与Fe_3Al滤芯发生反应,生成Fe的硫化物,造成腐蚀。目前,国内壳牌煤气化装置飞灰过滤器整套使用金属滤芯的企业较少且运行时间相对较短,其使用效果有待进一步观察。     

复合粘结剂对Al2O3基小孔径陶瓷过滤器性能的影响

采用有机泡沫浸渍工艺制备Al2O3泡沫陶瓷过滤器。通过对试样的抗压强度、热震稳定性等性能的检测以及利用扫描电镜（SEM）对试样显微结构进行研究,探讨了粘结剂对氧化铝基小孔径泡沫陶瓷过滤器性能的影响。实验采用正交分析方法,研究磷酸二氢铝、糊精、硅溶胶的加人量对制品性能的影响。结果得出最佳配比,其用量为：磷酸二氢铝40％、糊精0．5％、硅溶胶1％。采用最佳配方在1400℃下烧结所得的氧化铝基泡沫陶瓷过滤器常温抗压强度达到2．256MPa,同时试样加热到1100℃保温15min空冷后的残余强度保持率达到90％。     

镁铝质泡沫陶瓷过滤器的研制

研究了镁铝质泡陶瓷过滤器的成分，成型工艺，烧结工艺，性能及应用效果。实验结果表明，镁铝质泡沫陶瓷过滤器具有良好的应用前景。     

AS型泡沫陶瓷过滤器的研制

详细说明了用网状弹性聚氨基甲酸乙酯切片浸渍陶瓷料浆压制AS型泡沫陶瓷过滤器的工艺。采用非磷酸盐添加剂粘合，由碳化硅、氧化铝、硅胶及少量硅酸铝纤维制成的AS型泡沫陶瓷过滤器抗压强度可达1．65MPa而厚度仅为15mm，并且不会造成环境污染，完全可以满足过滤铁溶液的要求。     

添加剂对SiC-Al2O3陶瓷过滤器性能的影响

采用有机泡沫浸渍工艺制备泡沫陶瓷过滤器.研究添加剂SiO2微粉和CeO2对碳化硅-氧化铝基泡沫陶瓷过滤器的影响.采用正交实验并对陶瓷进行性能检测,结果表明,SiO2,微粉和CeO2的加入量与烧成温度之间存在最佳配比.采用最佳配方在1 380℃下制得的碳化硅-氧化铝基泡沫陶瓷过滤器常温抗压强度为2.10Mpa,热震稳定性为20次.     

低温烧结MgO-PSZ泡沫陶瓷过滤器

采用新型MgO-PSZ材料进行了泡沫陶瓷过滤器的试制与研究。发现过滤器的性能受海绵影响较大；于1550℃烧成、经1100℃热处理后可得到耐压强度为0．49MPa、孔隙率为85％的过滤器；制备过程中试样的收缩率较大。     

氧化锆基泡沫陶瓷的工艺原理及性能表征

阐述了泡沫陶瓷的孔结构理论、形成机理，作过滤器时过滤净化液态金属的机制及ZrO2在泡沫陶瓷中的增韧机理和相变理论，详细介绍了氧化锫基泡沫陶瓷的性能及其表征的主要参数与测定方法。     

有机泡沫浸渍法制备SiC泡沫陶瓷的研究进展

泡沫陶瓷具有气孔率高、热稳定性好等优良性能，被广泛用作金属溶液过滤器、高温气体和离子交换过滤器、催化荆载体等。笔者主要介绍了采用有机泡沫浸渍法制备SiC泡沫陶瓷的研究现状，探讨了影响产品性能的主要因素，展望了SiC泡沫陶瓷的发展前景。     

SCGP陶瓷滤芯断裂原因分析及Fe_3Al金属滤芯安装

SCGP的高温高压飞灰过滤器是典型的干法除尘设备,在实际运用的过程中存在陶瓷滤芯的断裂问题,造成大量飞灰进入下游工艺系统,从而造成全厂停车。文章将简单介绍SCGP高温高压飞灰过滤器的结构及过滤原理,分析陶瓷滤芯断裂原因,操作中积累的经验。另外,简单介绍本装置金属滤芯的更换安装。     

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。