YS 842催化剂在嵌段聚丙烯生产中的应用

介绍了YS842催化剂在北京燕化石油化工股份有限公司40kt/a聚丙烯(PP)装置上试用情况,考察了该催化剂在液相本体法PP装置上生产嵌段PP的性能。通过对成品的宏观性能和微观结构等方面的分析并与进口催化剂生产的产品进行对比。评价了YS842催化剂的性能。工业试用结果表明。YS842催化剂的活性可以达到20．652kg／g。活性持续时间可以满足生产一般嵌段共聚PP的要求。用YS842催化剂生产的PP产品微观结构与进口催化剂生产的PP产品基本一致。     

1-烷基-3-甲基哌啶-2-酮和1-烷基-5-甲基哌啶-2-酮的制备方法

公开了在催化剂存在下，于气相中通过使结构式(Ⅰ)的环酮脱氢化制备结构式(Ⅱ)的环状α，β-不饱和酮的方法。反应是在没有氧或每摩尔化合物(Ⅰ)低于0．5mol氧的存在下，在250—600℃的温度下，并且利用表面积(BET)大于0．5m^2／g的催化剂进行的。     

YS-842B催化剂用于丙烯气相聚合工艺

开发了一种适于丙烯气相聚合的催化剂YS-842B．并与国产的同类催化剂进行了比较。结果表明,YS-842B催化剂与国产同类催化剂的组成和颗粒形态相近;聚合动力学行为、氢凋敏感性、共聚合性能相当。采用YS-842B催化剂制备的聚合物具有更窄的粒径分布。     

自乳化环氧树脂固化剂国产化

浙江安邦新材料发展有限公司开发成功自乳化环氧固化剂，并已实现产业化生产，其牌号有AB—HGF、AB—HGA、AB—HGI等，外观为乳白色或棕色均匀液体；黏度（25℃）≤20mPa·S；固含量分别为38％～42％、48％～52％、38％～42％；粒径分别为≤0.2μm、≤0．3μm、≤0．2μm；胺值分别为210～230mgKOH／g、240～300mgKOH／g、190～250mgKOH／g；pH值均为10～13。     

固体超强酸SO42-/TiO2-Al2O3-SnO2催化合成DBS

以固体超强酸SO4^2-／TiO2-Al2O3-SnO2为催化剂、葵二酸和正丁醇为原料合成了癸二酸二丁酯(DBS)。研究了反应时间、醇酸物质的量比、催化剂用量等对酯化率的影响。结果表明：最佳反应条件为以0.05mol葵二酸为基准，n(酸)：n(醇)=1：4，催化剂0．5g，反应时间3．5h，此时酯化率达97．5％，产品质量分数大于98％；催化剂重复使用6次后，催化活性基本不变。     

富勒烯-钕系催化剂引发丁二烯-异戊二烯共聚合

研究了富勒烯-钕系催化剂在加氢汽油中引发丁二烯和异戊二烯共聚合的反应规律。结果表明，当C60Cln(简称Cl)／Nd(naph)，(简称Nd，摩尔比)为1～9时，富勒烯-钕系催化剂与加氢汽油皆形成均相体系，最佳陈化方式[Al(i—Bu)，(简称Al) Cl] Nd，催化活性随陈化时间延长(直到4h)和陈化温度升高(直到80℃)而增大，表明该催化剂稳定性较好；其共聚物特性黏数为1．5—2．5dL／g，低于Nd—Al—Cl催化体系；相对分子质量分布较窄(2～4)。经傅里叶变换红外光谱和核磁共振测定，确认产物为无规共聚物。聚丁二烯链段为顺-l，4-结构，聚异戊二烯链段为顺-l，4-结构和3，4-结构。     

聚丙烯细粉产生的原因及影响

结合CS－2型高效催化剂在液相本体法聚丙烯装置应用的实际，分析了细粉含量增加的主要原因有：催化剂本身粒径的分布，催化剂钛含量，铝／钛（摩尔比，下同）控制情况，预聚效果以及聚合反应条件的影响。通过对细粉增加原因的分析，提出了3条改进措施：改进催化剂制备，选择粒径分布好，强度高的催化剂载体，控制好制备的各个环节；调整预聚操作条件，保证预聚效果，减少催化剂破损；根据催化剂特性，控制好催化剂的铝／钛，充分利用催化剂活性是减少细粉生成的有效措施。     

利用混配催化剂制备宽峰聚乙烯／蒙脱土纳米复合材料的方法

利用混配催化剂制备宽峰聚乙烯／蒙脱土纳米复合材料的方法。将催化剂A和催化剂B按照1：9—9：1的比例制备混配催化剂，利用混配催化剂制备宽峰聚乙烯／蒙脱土纳米复合材料。该纳米复合材料的聚合产物堆积密度大于0．37g／cm^3，拉伸强度大于35MPa，维卡耐热温度大于130℃，分子量分布S值在8～16。本发明提供的混配催化剂适用于淤浆聚合工艺制备宽峰聚乙烯／蒙脱土纳米复合材料。该纳米复合材料具有良好的力学强度、耐热性及加工性能，使其可在薄膜、建材、管道、吹塑成型用料、注射成型用料、电线电缆等领域有广泛的用途。     

BCM型催化剂在Innovene气相法聚丙烯装置上的应用

考察了国产BCM型催化剂在Innovene气相法聚丙烯(PP)装置上的工业应用,并开发出超柔无纺布专用PP新产品——PPR-Y40-V。结果表明:BCM型催化剂具有很高的活性,最高达63.3 kg/g,且氢调敏感性好;PPR-Y40-V粉料粒径较大且粒径分布窄,粒径大于0.85 mm的PP粉料占94.1%;BCM型催化剂完全可以用于Innovene气相法PP工艺。     

B207型低变催化剂性能及工业应用

B207型催化剂径向抗压碎强度≥180N／cm．堆密度1．4～1．5kg／l，比表面积100m^2／g。工厂使用情况表明．水含量低。低温活性高．稳定性好．床层阻力小．生产强度高。在低汽气比工况下操作，节能效果显著。催化剂的各项主要性能指标均优于国内同类低变催化剂，达到国外同类低变催化剂水平，是一种性能优异的新型低变催化剂。     

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.     

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.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.