杜邦新型车用塑料将车重减轻30%～40%

杜邦高性能聚合物单元是全球最大的工程塑料尼龙制造商,多年来一直专注于产品和零件应用开发,据卓创了解其在全球各地拥有专门的研究机构,为航空、设备、汽车、消费品、电子、运动用品等行业提供高性能材料和先进的技术支持。为减轻车重,同时提高出租车性能,奇瑞公司毅然选择杜邦高性能聚合物单元为其车用塑料提供商。据悉,奇瑞新款出租车将采用多种先进的杜邦车用材料,其中包括高性能尼龙树脂、乙烯丙烯酸弹性体     

废旧冰箱塑料的在线近红外光电识别

废旧冰箱中塑料的无害化回收处理已经成为一个亟待解决的问题,而回收所得到的塑料产品纯度已经成为制约废旧冰箱塑料回收行业发展的重要因素。将近红外光谱分析识别技术应用到在线废旧冰箱塑料的分选识别中,设计并搭建了一整套的分选平台,实现了废旧冰箱塑料主要成分的在线识别。特别针对目前近红外分析技术较难识别的ABS与PS开发了适应的识别算法,对搭建的分选平台进行了废旧冰箱塑料主要成分ABS、PS与PP的识别准确率实验。实验结果表明,近红外光谱分析技术适用于废旧冰箱塑料的在线识别,且准确率可以达到98%以上。     

塑料在“轻量与环保化”汽车中的应用及发展趋势

本文综述了塑料在“轻量化和环保化”的汽车各系统中的应用现状,以及我国车用塑料的现状及存在的问题;讨论了车用塑料未来的发展趋势。     

汽车用塑料的开发应用

综述了国内外汽车用塑料的发展趋势，重点介绍了车用塑料在耐温性、阻燃性、纳米复合材料及环保等方面的开发及应用，并对国内汽车用塑料存在的问题和发展提出建议。     

2011车用复合材料市场及加工技术研讨会在河北沧州召开北大核心

为了促进车用塑料行业的健康发展与市场推广,鼓励技术创新和开发高品质、差异化产品,促进新设备、新工艺、新技术及新产品的应用,于2011年11月4—7日在河北沧州召开了2011车用复合材料市场及加工技术研讨会。这次会议由中国塑料加工工业协会主办、沧州经济开发区承办。沧州市政府很重视这次会议,会议期间安排与会者参观了沧州经济开发区,会上部分代表还做了专题技术演讲,深入研究探讨了车用塑料行业存在的问题与解决对策。     

塑料技术开创汽车轻量化的新时代

塑料在现代汽车制造中起着重要的作用。开发车用塑料结构件是今后的重点发展方向,采用塑料结构件的汽车使汽车轻量化和环保化。介绍了塑料在汽车轻量化中的应用及我国车用塑料进入高速发展期 同时指出了汽车塑料材料与制品未来的发展趋势。     

车用塑料的市场与开发应用

介绍了车用塑料的市场、应用的现状与开发近况。     

汽车用塑料的市场与开发应用

介绍了车用塑料的市场、应用的现状与开发近况。     

到2015年巴斯夫将在亚洲投资23亿欧元

全球领先的化工公司巴斯夫日前参加在广州举办的2011国际橡塑展,为未来的新能源车发展带来了高效低碳的车用塑料解决方案。作为塑料应用方面的专业制造商,巴斯夫在广州国际橡塑展展示了包括Ultramid工程塑料制造的车用进气     

车用塑料市场分析

节能、减排、改善安全性是汽车及其应用材料(如塑料)发展的目标。该目标也促使各大材料开发商与汽车企业良好互动,开发出越来越多的塑料新材料,满足人们对汽车环保化及轻量化,乃至美观、个性化的需求。根据车用塑料的性能特点,阐述了热塑性塑料扩展了设计空间,外商为抢占市场相继推出车用塑料配件;同时指出了全球汽车塑化的趋势与商机。     

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。