5%阿维菌素微乳剂的研究

介绍了5％阿维菌素微乳剂的制备方法和乳化剂及助表面活性剂的筛选．并且考察了水质对微乳剂配制的影响．考察了配制微乳剂的低温、热贮、乳化和原药分解率等性能．表明该微乳剂品种分解率低，质量稳定，使用安全．社会效益显著。     

10％丙线磷微乳剂的研究

介绍了具有优良杀线虫效果的农药新剂型——— 10 %丙线磷微乳剂 ,简述了该剂型的特点 ,乳化剂及助表面活性剂品种的筛选 ,并且考察了水质对微乳剂配制的影响 ,考察了配制的微乳剂低温、热贮、乳化和对原药分解率等性能 ,表明该微乳剂品种具有分解率低 ,质量稳定 ,使用安全 ,社会效益显著等特点     

50%乙草胺微乳剂的研究

介绍了具有优良除草效果的新剂型－－50％乙草胺微乳剂，简述了该剂型的特点，乳化剂及助表面活性剂品种的筛选，并且考察了水质对微乳剂配制影响，考察了配制的微乳剂低温、热贮、乳化和对原药分解率等性能，表明该微乳剂品种分解率低，质量稳定，使用安全，社会效益显著。     

20％乙草胺微乳剂的研究

介绍了具有优良的除草效果的除草剂乙草胺的新剂型——— 2 0 %乙草胺微乳剂 ,简述了该剂型的特点 ,乳化剂及助表面活性剂品种的筛选 ,并且考察了水质对微乳剂配制的影响 ,考察了配制微乳剂的低温、热贮、乳化和原药分解率等性能 ,试验表明该微乳剂品种分解率低 ,质量稳定 ,使用安全 ,社会效益显著     

25%唑菌·丙环唑微乳剂的研制

介绍了一种以水为介质的环保型新制剂25%唑菌.丙环唑微乳剂。通过对助剂及溶剂品种的筛选,考察了配制的微乳剂各种控制项目指标以及低温、热贮性能,并确定了最佳配方:唑菌胺酯5%,丙环唑20%,乙二醇丁醚醋酸酯10%,乙醇6%,壬基酚聚氧乙烯醚磷酸酯2%,三苯乙烯基酚聚氧乙烯醚磷酸酯4%,农乳33#6%,农乳500#3%,有机硅消泡剂0.05%,纯净水补足。结果表明,该微乳剂质量稳定,分解率低,使用安全,有良好的开发应用前景。     

3%啶虫脒微乳剂的稳定性研究

对3%啶虫脒微乳剂用的乳化剂进行了筛选,考察了水质和温度对微乳剂稳定性的影响及环境温度下贮存1年的稳定性。结果表明:该微乳剂分解率低,水质影响小,质量稳定,使用安全,社会效益显著。     

微乳剂质量技术指标的确定及测定方法研究

以笔者配制的几种微乳剂制剂为对象,对微乳剂的质量技术指标及测定方法进行研究。提出了微乳剂质量技术指标的建议值:透明温度区域范围为0℃～56℃,最佳为-5℃～60℃;冷贮稳定性(0±1)℃下贮存14d稳定;乳液稳定性的稀释倍数为100倍;经时稳定性2a,对于稳定的品种可以延长到3a或4a;热贮稳定性在(54±2)℃下贮存14d,有效成分分解率≤5%;pH值主要根据有效成分性质确定范围;水质一般为自来水,配制用水量在30%以上。希望为有关部门制定微乳剂剂型标准要求提供依据及供微乳剂制剂品种农药登记时参考。     

2.5%吡虫啉微乳剂的研究

对2.5％吡虫啉微乳刑中的乳化剂进行了筛选,考察了水质、乳化剂、溶剂等对微乳剂稳定性的影响,得到最佳配方：吡虫啉原药2.5％,二甲基亚砜10％;助溶剂A5％,乳化剂ME-01C18％,辅助剂4％,水60.5％。实验结果表明,该微乳剂分解率低,水质影响小,使用安全,社会效益显著。     

2%阿维菌素微乳剂的稳定性研究

对2％阿维菌素微乳剂所用表面活性剂进行了筛选,研究了水质和温度对微乳剂稳定性的影响以及环境温度下贮存一年的稳定性。结果表明：该微乳剂的分解率低,水质影响小,质量稳定。     

不同影响因子对虫螨腈微乳剂理化性质的影响

研究了助溶剂、表面活性剂等不同影响因子对虫螨腈微乳剂理化性质的影响,测定了其低温和热贮稳定性等理化性状。结果表明,表面活性剂的HLB值大于12.6、助溶剂为环己酮时配制的微乳剂较好;采用适当的离子/非离子表面活性剂搭配可以在表面活性剂用量较低时即获得理化性质稳定的微乳液。在近中性条件下,不同因子对10%虫螨腈微乳剂热贮分解率基本没有影响。     

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。