五氧化二锑乙醇分散液的制备方法

本发明公开了属于化工材料制备技术范围的一种五氧化二锑乙醇分散液的制备方法。将三氧化二锑、分散稳定剂加入乙醇中，用过氧化氢将三氧化二锑氧化为五氧化二锑，反应液经浓缩、脱水、浓缩，即制得五氧化二锑质量分数大于5％的产物。所用分散稳定剂是由不同直链基团形成的叔胺类物质，用无水乙醇作脱水剂。产物以乙醇为分散介质，在强极性溶剂和弱极性溶剂中均能分散使用，克服了五氧化二锑水分散液只能在强极性溶剂中使用的局限性，拓宽了五氧化二锑作为阻燃添加剂的应用范围。该产品既具有颗粒细小的优点，     

无机锑系阻燃剂

无机锑系阻燃剂主要包括三氧化二锑、五氧化二锑溶胶和锑酸钠等。介绍了它们的性质、生产工艺、产品标准、阻燃用途和研发方向等。     

五氧化二锑胶体的制备及应用

叙述了以锑白为原料，用双氧水氧化法制备水系及有机系五氧化二锑胶体的过程，并介绍了五氧化二锑胶体的应用。     

五氧化二锑胶体的制备及应用

叙述了以锑白为原料，用双氧水氧化法制备水系有机系五氧化二锑胶体的过程，并介绍了五氧化二锑胶体的应用。     

超纯PFA衬里及其在电子化学品领域中的应用

介绍了可熔性聚四氟乙烯（PFA）的特性,说明了PFA材料的耐腐蚀性能、金属离子析出水平、加工性能;对超纯PFA与普通PFA材料进行了比较,叙述了钢制设备的超纯PFA衬里结构及制造流程。介绍了常见的电子化学品,以及超纯PFA衬里在电子化学品中的应用情况。认为随着消费电子领域日趋繁荣及全球IC产业逐步转向中国大陆,对电子化学品的需求也越来越大,超纯PFA衬里的市场将迎来良好的发展时期。     

国际市场上销售的阻燃剂的商品牌号、生产厂家及应用领域(续完)

3　无机阻燃剂3 1　美国ＰＱ公司生产的无机阻燃剂　商品牌号化　学　名　称 Ｓｂ2 Ｏ5含量 / % 应用领域ＮｙａｃｏｌＡ15 30 ,Ａ15 5 0 ,Ａ15 40Ｎ五氧化二锑水溶胶 30～ 5 0纺织品 ,无纺布 ,粘结剂 ,纤维ＢｕｒｎＥｘＰｌｕｓＡ15 88ＬＰ ,Ａ15 90 ,ＺＴＡ五氧化二锑干粉ＥＰ ,ＡＢＳ ,ＨＩＰＳ ,ＰＰＮｙａｃｏｌＮ - 2 2 ,Ｎ- 2 4 ,Ｎ - 36五氧化二锑与溴化合物的水分散体纺织品 ,无纺布 ,粘结剂 ,纤维ＮｙａｃｏｌＡＰＥ15 40 ,ＡＢ4 0 ,ＡＰ5 0五氧化二锑在不饱和聚酯、聚酯多元醇或叔胺中的分散体ＵＰ ,ＰＵＦ ,ＥＰ ,涂料 ,弹性体…     

无机精细化工产品发展重点

据化工部有关司局获悉,今后我国无机精细化工产品的发展重点是:1.无机填料补强剂,如白炭黑,超细活性碳酸钙;2.催化剂载体,包括分子筛;3.无机功能材料,如二氧化锰,无机粘接剂、硅酸铝;4.无机阻燃系列品,主要是钡、锶、钾、锂、铝、锑等金属盐;5.饲料与食品添加剂,主要是磷酸和磷酸盐类;6.水处理剂,专用、多功能的水处理药剂,包括缓蚀剂、分散剂、絮凝剂等;7.造纸与皮革化学品系列。     

亟待开发的无机电子化学品

综述了半导体用超细高纯无机化学品以及印刷电路板和电池方面用的无机电子化学品，介绍了数种无机电子化学品的制备方法。     

巨化叩开高端电子湿化学品大门

<正>近日从巨化股份全资子公司浙江凯圣氟化学有限公司获悉,该公司的一种电子湿(超纯)化学品通过了国内高端客户中芯国际、华虹宏力等的检测认定并投入实际应用。该公司生产的湿化学品产品已获得国内集成电路龙头企业的认可。作为电子工业配套的专用化学品,电子湿化学品主要包括集成电路和分立器件用化学品、印制电     

刺激响应型过氧化氢凝胶的制备与性能

通过低温震荡方法制备了过氧化氢凝胶。研究了微米和纳米级颗粒状二氧化硅对过氧化氢的胶凝行为及其所形成凝胶的刺激响应性。用R／S软物质测定仪研究了某过氧化氢凝胶配方的触变性能。结果表明,二氧化硅的粒度与表面性质直接影响其胶凝能力,亲水性纳米二氧化硅比亲水性微米二氧化硅具有更好的胶凝能力,而疏水性微米和纳米二氧化硅不能胶凝过氧化氢。亲水性纳米二氧化硅的过氧化氢凝胶具有显著的温度／剪切双重刺激响应性,并随过氧化氢浓度的增加而增强。在实验的基础上,提出了凝胶形成和刺激触变的可能机理。实验发现,加入微量表面活性剂与氢氟酸,能够有效提高凝胶的稳定性。     

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.