石油沥青改性用丁苯胶乳（SBRL）的合成及应用

采用乳液聚合法制备沥青改性用丁苯胶乳。与沥青掺合所形成的改性沥青适用于重交通道路的铺筑，经性能测试和越冬试验，所有技术指标均达到重交通道路对沥青的要求。     

国外沥青改性用了苯胶乳的合成及应用

综述了地青改性用丁苯胶乳的合成方法、沥青与胶乳的掺合方法以及沥青胶乳掺合物的应用领域。     

乳化沥青改性用丁苯胶乳凝胶质量分数影响因素研究

采用复合乳化剂条件下,在过氧化物与亚铁盐组成的氧化还原体系引发作用下合成乳化沥青改性用丁苯胶乳,研究引发剂、乳化剂、相对分子质量调节剂及控温模式对胶乳中ω(凝胶)的影响.结果表明,采用质量分数约4％乳化剂,0.1％～0.2％引发剂,0.225％～0.275％相对分子质量调节剂,并采用三段控温模式(初期温度16～20 ℃,中期温度28～30℃,后期温度38～40℃),可有效控制胶乳中的ω(凝胶).     

大庆丙烷脱沥青路用性能的改性研究

1前言道路沥青改性是目前国内外都在进行研究的课题。国外主要是根据不同的使用要求，对合格的道路沥青改善某些方面的性能。国内道路沥青改性研究始于对年代，由于某些国产道路沥青路用性能差，通过改性可以达到合格的道路沥青的要求。2大庆丙烷脱沥青的改性研究11含蜡量高的问题2．1．1氯化法用氯化法处理沥青，沥青中的石蜡经氯化后，生成氨化石蜡。低度氯化的石蜡在常温下是油状液体，而高度氯化的石蜡在常温下是固态。氯化石蜡具有阻燃性，工业上用作阻燃剂。笔者用此法处理沥青，生成的氯化石蜡可以不分离出去，留在沥青中。固态氯绪…     

黏层用C9石油树脂/SBR复合改性乳化沥青性能研究

采用C₉石油树脂和SBR胶乳制备高性能复合改性乳化沥青,通过三大指标试验、高温和低温流变试验评价了复合改性乳化沥青的宏观服役性能,借助激光粒度分析仪、荧光显微镜和红外光谱仪分析复合改性乳化沥青的储存稳定性和相容性,揭示C₉石油树脂/SBR复合改性剂对乳化沥青的改性机理。结果表明,C₉石油树脂提高了乳化沥青的力学强度和高温抗变形能力,而SBR胶乳明显改善乳化沥青低温抗裂性能,蠕变劲度最大降低30.4%。制备的C₉石油树脂/SBR复合改性乳化沥青储存稳定性良好,C₉石油树脂和SBR胶乳对乳化沥青的复合改性机理为物理混溶,C₉石油树脂的掺量不高于8%。     

防水涂料

9602236丙烯酸乳化沥青防水涂料:CNlll2591A〔中国发明专利申请公开〕/丁铁龙(丁铁龙)一1995.11.29一94102834.8(1994.3.24);IPC C09D4/00 一种丙烯酸乳化沥青防水涂料,由一种胶乳改性乳化沥青制得,其胶乳包含有丙烯酸系单体等组分,用该胶乳改性乳化沥青,可部分或全部代替传统氯丁胶乳化沥青中的氯丁胶,保证了质量,降低了成本,另在低档乳化沥青中掺入其胶乳,可使产品性能与质量提高到中档水平。9602237有机硅防水涂料:JP94一256756〔日本专利公开〕/Shinetsu Chem Ind Co(Ono,Iehiro等)一1994.9.13一6页一93/73031(1993.3.8);IPC C0…     

建筑化学品、粘合剂

五、建筑化学品、粘合剂ＸＬ—型乳化氯丁橡胶沥青乳化氯丁橡胶沥青是用阳离子氯丁胶乳、优质石油沥青制成的新型水乳型橡胶改性涂膜防水材料。它赋于沥青以橡胶的特性，克服了沥青的热淌、冷脆、不耐老化和污染环境的缺点，具有可冷施工、无毒、不燃及不污染环境的优点，...     

基于Fénix法的胶乳掺量对乳化沥青冷再生混合料抗开裂性能影响研究

在公路建设中,乳化沥青冷再生混合料可作为一种柔性基层或中下面层,要求具有一定的承载能力与抗开裂性能.胶乳具备的粘弹特性,可提高乳化沥青冷再生混合料的抗开裂性能.本文基于Fénix法,研究胶乳掺量对乳化沥青冷再生混合料抗开裂性能影响,结果表明,当胶乳掺量小于3％时,对混合料抗开裂性能影响较小,胶乳掺量在4.5％左右时,抗开裂性能明显增强,建议胶乳掺量在4.5％为宜.     

固体沥青改性用丁苯胶乳的工艺研究

以丁二烯和苯乙烯为单体,采用阴离子乳化体系,在过氧化物与亚铁盐构成的氧化还原引发体系作用下,合成了性能良好的固体沥青改性用丁苯胶乳,讨论了影响聚合过程及胶乳性能的因素。结果表明,单体配比、乳化剂浓度、引发剂浓度、分子质量调节剂用量及聚合温度是控制丁苯胶乳性能的关键因素,分批加入乳化剂及梯度控温有利于控制胶乳门尼粘度和结...     

阳离子氯丁胶乳改性水乳化沥青大桥用涂料的研制

介绍了氯丁胶乳改性阳离子乳化沥青的配方、工艺及其性能特点。     

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.