汽车内饰件用聚丙烯材料的研究

以聚丙烯(PP)为基体树脂,(乙烯/辛烯)共聚物(POE)为抗冲改性剂,滑石粉为填料制得了汽车内饰用PP改性料,研究了PP种类及用量、增韧剂用量、滑石粉粒径等对材料性能的影响。结果表明:以PP(K7760)30份,PP(GD320)30份,增韧剂POE(EG8150)18份,填充剂滑石粉(2500目)20份,抗氧剂、偶联剂等助剂2份制得的PP改性料满足汽车内饰件性能的要求。     

小型家电专用料的研制

利用双螺杆挤出机，通过熔融共混工艺制备了改性聚丙烯（PP）小家电专用料，研究了聚烯烃弹性体POE和无机复合矿粉的添加量对共混体系性能的影响。研究结果表明：以均聚PP为基体树脂、质量分数10％POE为增韧剂、质量分数25％经活化处理的无机复合矿粉为增强剂制备的改性聚丙烯（PP）专用料，其性能可满足小家电专用料要求。     

音箱用聚丙烯专用料的研制

以聚烯烃弹性体（POE）和（乙烯/丙烯/二烯）共聚物（EPDM）为增韧剂，马来酸酐接枝聚丙烯（PP-g-MAH)为增容剂，滑石粉为无机填料研制音箱用聚丙烯（PP）专用料。当PP-g-MAH用量为10份。滑石粉为120份，EPDM为15份。POE为5份时，所得PP专用料的综合性能最佳。完全达到了音箱用料的要求。     

改性聚丙烯方椅的研制

以均聚聚丙烯（PP）／共聚PP为基体树脂，通过与聚烯烃弹性体（POE），滑石粉及其它助剂的共混改性，制得改性PP方椅专用料，讨论了基体树脂的配制及POE，滑石粉含量对共混体系性能的影响，确定了改性PP方椅专用料的配方。用该专用料生产的方椅具有强度高，韧性好，耐老化，耐腐蚀，尺寸稳定，表面光亮等优点，现已批量生产。     

高韧性高模量改性聚丙烯着色专用料的研究

利用多种功能添加剂复合改性聚丙烯(PP),制成高韧性高模量PP。从几种PP组合中优选出综合性能最好的两种PP共混体系,研究了不同增韧剂及其用量、镁盐晶须作为增刚剂及其用量对PP着色专用料性能的影响,并选用环保型彩色混相无机颜料作为主着色剂。结果表明:以两种PP(K7726、K8303)为基体树脂,POE(8150型)与β晶型成核剂为增韧剂,经偶联剂处理的镁盐晶须为增刚剂,并用两步法动态硫化改性PP,当PP、POE与镁盐晶须三者的质量比为67:18:15时,改性PP的缺口冲击强度达到42.1 kJ/m~2,弯曲弹性模量为1 420 MPa,拉伸强度为18.6 MPa,达到了适用于类似汽车保险杠等制品的较高性能指标。     

小本体聚丙烯共混改性汽车专用料的研制

以小本体聚丙烯（PP）为基料，通过与共聚丙烯9CPP）、聚烯烃弹性体（POE）、硅灰石以及其它且剂共混改性，制得保险杠、门板汽车专用料。检测分析表明，PP／CPP／POE／硅灰石共混体系配方设计合理、工艺路线、参数正确。当PP：CPP：POE：硅灰石质量比为45－48：26－29：19－22：4－6时，共混料完全可以满足汽车保险杠性能要求，当PP：CPP：POE：硅灰石质量比为45－50：27－29：3－6：17－20时，共混料完全可以满足汽车门板性能要求，研究中发现，POE改性PP的综合性能好于EPDM等传统增韧剂；硅灰石也有一定的增韧功能，部分起到了玻璃短纤维的作用。     

聚丙烯冰箱抽屉专用料的研制

研究了以聚丙烯（PP）为基础树脂，以POE为增韧剂，同时加入无机填料制备冰箱抽屉用改性PP共混物的方法，并讨论了共混物组成，用量及共混物形态结构对专用料性能的影响。     

中华A1-下护板改性PP专用料的研制及应用

探讨了采用双螺杆挤出机生产中华A1-下护板改性聚丙烯(PP)专用料的配方和工艺,分析了增强剂玻璃纤维、增韧剂(乙烯/辛烯)共聚物(POE)和偶联剂对改性PP材料拉伸强度、缺口冲击强度、弯曲弹性模量、耐热性等性能的影响,选择了最佳的下护板专用料配方。采用新研制的下护板改性PP专用料生产的下护板可满足中华A1-下护板的使用要求。     

重型卡车用中段护板PP专用料的研制

以聚丙烯(PP)为基料,滑石粉为增强剂、马来酸酐接枝PP(PP-g-MAH)为增容剂、聚烯烃弹性体(POE)为增韧剂,并添加其它助剂,研制出了具有特殊使用要求的重型卡车用中段护板PP专用料.研究表明,经偶联剂活化处理的滑石粉可显著提高PP专用料的耐热性、刚性和尺寸稳定性;PP-g-MAH、POE提高了PP专用料的冲击强度:所研制的PP专用料的性能指标满足使用要求,具有较好的经济效益.     

高流动高抗冲耐候聚丙烯复合材料的研制

以聚烯烃弹性体(POE)为增韧剂,对滑石粉填充聚丙烯(PP)进行增韧改性,探讨了不同种类PP和POE对复合材料力学性能和流动性的影响,在此基础上,对制备的复合材料进行了耐候改性,通过氙灯人工加速老化试验和灰卡评级测试考察了其耐候性能。结果表明,通过合理选用PP和POE制备的PP复合材料的缺口冲击强度和熔融指数分别为31.6 k J/m2和20.4 g/10 min,经1 500 h氙灯人工加速老化后,复合材料的灰卡评价可达4-5级。     

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.