增韧聚丙烯三元共混体阻燃性能的研究

研究了多种阻燃剂，包括Ｓｂ２Ｏ３、Ａｌ（ＯＨ）３、ＣＰＣ、ＤＢＤＰＯ对聚丙烯／高密度聚乙烯／乙丙橡胶（ＰＰ／ＨＤＰＥ／ＥＰＲ）三元共混体—增韧聚丙烯—阻燃性能的影响；阻燃剂间的协同作用；并探讨了阻燃机理。结果表明：１、ＡＬ（ＯＨ）３的重量含量超过４０％时，阻燃效果显著；２、三种阻燃剂（Ｓｂ２Ｏ３、ＤＢＤＰＯ、ＣＰＥ）并用，阻燃效果明显提高，含卤化合物（ＤＢＤＰＯ与ＣＰＥ）是Ｓｂ２Ｏ３重量的四倍时，阻燃性能最佳；３、Ｓｂ２Ｏ３与ＤＢＤＰＯ并用时，当Ｂｒ／Ｓｂ的摩尔比为３∶１时阻燃效果最好     

配合剂对EPDM阻燃电缆胶料性能的影响

介绍硫化剂ＤＣＰ、共硫化剂ＴＡＩＣ（异氰脲三烯丙酯）和ＨＶＡ２（Ｎ，Ｎ′间亚苯基双马来酰亚胺）、分散剂硬脂酸及卤素和无卤阻燃剂对ＥＰＤＭ阻燃电缆胶料性能的影响。硫化剂ＤＣＰ用量为３份左右、共硫化剂ＴＡＩＣ／ＨＶＡ２并用（并用比为１／０．５）、硬脂酸用量较大、卤素或有机氮阻燃剂用量适中，则ＥＰＤＭ阻燃电缆胶料的物理和电性能较好。     

改性PP三元共混体阻燃性能的研究

研究了含卤阻燃剂，十溴联苯醚（ＤＢＤＰＯ）；氯化聚乙烯（ＣＰＥ）和三氧化二锑（Ｓｂ２Ｏ３）及氢氧化铝对改性聚丙烯（ＰＰ）－聚丙烯／高密度聚乙烯／乙丙橡胶（ＰＰ／ＨＤＰＥ／ＥＰＲ）三元共混体阻燃性能的影响，分析了阻燃剂间的协同作用，讨论了阻燃机理，结果表明：（１）Ｓｂ２Ｏ３与ＤＢＤＰＯ、ＣＰＥ并用能改性ＰＰ三元共混体的阻燃性能提高，当含卤阻燃剂用量是Ｓｂ２Ｏ３的四倍左右时阻燃效果最好，阻燃性能提高一     

Ti/SnO_2+Sb_2O_3+MnO_2/PbO_2阳极的制备及其性能

用热分解和电沉积联合方法制备了Ｔｉ／ＳｎＯ２＋Ｓｂ２Ｏ３＋ＭｎＯ２／ＰｂＯ２阳极．对该类电极进行了ＥＤＳ、ＳＥＭ、ＸＲＤ研究．测定了电极在１ｍｏｌ／ＬＨ２ＳＯ４溶液中的使用寿命和动力学参数．考察了其作为阳极用于含酚废水处理时的性能．结果表明，所制备电极在硫酸溶液中具有优良的电催化活性和电化学稳定性．     

离子色谱法测定洗涤剂中乙二胺四乙酸、磷酸盐

以ＡＳ４Ａ－ＳＣ为色谱柱,２．０ｍｍｏｌ／Ｌ碳酸钠为淋洗液,流速为２．００ｍＬ／ｍｉｎ,检测器量程为３０μｓ,进样体积为５０μＬ,对洗涤剂中乙二胺四乙酸（ＥＤＴＡ）、磷酸盐（ＰＯ３－４）及氯离子（Ｃｌ－）、硝酸根（ＮＯ－３）、硫酸根（ＳＯ２－４）同时测定,它们的线性关系比较好,相关系数大于０．９９６５,９次平行测定的相对标准偏差为０．５１％～２．９５％,对ＥＤＴＡ和ＰＯ３－４的测定回收率分别为１０６．５％和９８．５％。     

彩色低烟低卤CSM/EPDM电缆护套胶料的研制

研制出了一种耐环境性较好的彩色低烟低卤氯磺化聚乙烯（ＣＳＭ）／ＥＰＤＭ电缆护套胶料。得出的胶料优化配方为：ＣＳＭ／ＥＰＤＭ（８５～９０）／（１５～１０）;硫化体系（硫化剂ＤＣＰ／共硫化剂ＨＶＡ２／共硫化剂ＴＡＩＣ）６５～７０;补强填充剂（ＬＥＥ白滑粉／煅烧陶土／轻质碳酸钙）１００～１１０;三盐基马来酸铅３５～４０;金红石型钛白粉３０～４０;耐辐射剂（二苯胺类／磷酸苯酯类）１５～２０;阻燃剂（氢氧化铝／氢氧化镁／三氧化二锑）１００～１１５;其它２０～４０。胶料及电缆成品性能满足ＩＥＣ５０２（１９９４）标准及核电站使用要求。     

固体超强酸ZrO_2/SO_4~=和Fe_2/O_3/SO_4~=催化苯乙烯烷基化甲苯反应初探

固体超强酸ＺｒＯ２／ＳＯ＝４和Ｆｅ２／Ｏ３／ＳＯ＝４催化苯乙烯烷基化甲苯反应初探ＣＡＴＡＬＹＩＣＡＬＫＹＬＡＴＩＯＮＲＥＡＣＴＩＯＮＯＦＴＯＬＵＥＮＥＡＮＤＳＴＹＲＥＮＥＢＹＵＳＩＮＧＳＯＬＩＤＳＵＰＥＲＡＣＩＤＳＺｒＯ２／ＳＯ４＝ＡＮＤＦｅ２／Ｏ／...     

新型钛系催化剂在直接酯化工艺路线中应用探讨

选用特定的含钛化合物作为缩聚催化剂，以ＰＴＡ路线，在２Ｌ釜上进行ＰＥＴ的合成研究，并利用ＤＳＣ、ＴＧＡ、ＧＰＣ等手段对合成的ＰＥＴ进行性能研究．得到催化剂的用量为０．５～０．７／万，酯化时间为５０～５５ｍｉｎ、聚合时间为７０～８０ｍｉｎ．聚酯各项指标均在合格范围之内，与ＳｂＡｃ３催化体系比较．其用量为锑系的１／３，酯化时间缩短２０～３０ｍｉｎ，聚合时间缩短２５ｍｉｎ。     

超高分子量PVC弹性摩阻材料的研制

本文介绍采用共混模压工艺研制超高分子量ＰＶＣ弹性基摩阻材料，基体树脂体系采用ＰＶＣ／ＰＥ，并用化学交联剂ＴＡＩＣ／ＤＣＰ交联，坡 石作纤维增强材料，Ａｌ２Ｏ３和ＭｏＳ２分别作填料和润滑剂。其最佳工艺参数为：共混温度９０－１００℃，模压温度９上模）１６０－１６５℃，（下模）１５０－１５５℃，模压压力１８ＭＰａ，模压时间２５－３０ｍｉｎ。所制摩阻材料的质量磨损率可控制在１０＾－２－－１０＾－４的量级，     

ICP-MS同时测定聚合氯化铝中的Al2O3及5种元素含量的研究

研究结果表明：用ＩＣＰ－ＭＳ可以同时测定聚合氯化铝中的Ａｌ２Ｏ３及Ａｓ,Ｍｎ,Ｈｇ,Ｐｂ,Ｃｄ５种元素的含量。测试样品（１００倍稀释固体聚合氯化铝）中Ａｌ２Ｏ３,Ａｓ,Ｍｎ,Ｈｇ,Ｐｂ,Ｃｄ的测定结果分别为：０．３０％,１．８７μｇ／Ｌ,９５．４μｇ／Ｌ,４６．０ｎｇ／Ｌ,２３．３μｇ／Ｌ．５７４ｎｇ／Ｌ;测定的准确度分别为９３．０％,１０９％．９４．４％,８８．３％,９８．０％,８８．６％。     

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。