巴斯夫加快纳米材料开发应用

巴斯夫公司认为将纳米材料用于涂料、分散体和塑料等产品上,可改进其性能或创造新属性,经改进的产品可成为众多消费产品的原料。纳米技术拥有巨大的潜力,能提供环保、节能和节约资源的产品和工艺。     

超高分子量聚丙烯酰胺

采用加碱大块均聚后水解工艺合成超高分子量聚丙烯酰胺,产品可用于石油开采、水处理、造纸和污泥脱水等。本项目研制的新型水溶性引发剂可用于各类水溶性单体聚合,可大幅度提高产品分子量,改善产品的水溶性。     

浅谈标牌和面版制作技术

一块小小的标牌虽然与产品的使用性能没有直接关系,但它是产品不可缺少的配件之一。产品的设计者,都希望能配上体现产品价值和等级的面板和标牌。标牌和面版生产过程是一种金属表面的精饰工艺,它与产品外壳的涂装工艺密切配合,为产品精心装饰。产品标牌按其使用范围可分为机械工业产品标牌和民用工业品标牌两大类;按产品的结构形式、质量要求等方面又可分为若干加工工艺;按标牌的功能范围又可分为型号标牌、厂     

巴斯夫展出高流动性产品

巴斯夫(BASF)参加二十三届国际橡塑展,在中国首度展出Ultramid High Speed产品.在塑料中加入特殊的纳米颗粒后,可使这些产品的性能大幅提升,不仅可改善其流动性,还可提高其在高温下的耐热老化性.目前市场上尚无其他聚酰胺产品可兼具这些优异特性.……     

正己烷馏程现状分析及前加氢工艺路线模拟研究

正己烷产品馏程在3.5℃左右,低于行业水平。影响产品馏程的关键因素是产品中2-甲基戊烷、3-甲基戊烷的含量,前加氢工艺路线可有效降低产品中2-甲基戊烷、3-甲基戊烷含量。对前加氢工艺与现工艺(后加氢)进行模拟研究,结果表明生产80级正己烷,前加氢工艺技术路线可将中间产品中的轻组分控制在0.5%以内,实现产品馏程控制在2.0℃以内。     

双组分Robond L水性包装胶粘剂

<正>美国罗门-哈斯公司向中国市场引入第二代双组分Robond L水性包装胶粘剂。其属于干式复合型产品,可用于食品包装。该类产品施用操作简单,产品剪切强度高,固化速率高且可快速分切,具有安全与环     

化妆品市场发展趋势

正随着全球化妆品市场的成长以及消费者需求的不断增长,以下一些全球化妆品市场出现的新的发展趋势值得关注:1)产品要环保、绿色、可生物降解。随着全球环保呼声的日益高涨,消费者对化妆品安全性要求越来越高,产品发展趋势必须是绿色环保可生物降解的产品。源自天然成分和原料的化妆品产品将会越来越多地在市场上出现。     

美国批准登记Vestaron及陶氏益农产品

美国环保署近日建议批准登记Vestaron公司生产用途的农药产品VST-006325 TGAI及终端农药产品VST-006325 EP,作为基于活性成分GS-omega/Kappa-Hxtx-Hvla的versitudeTM肽段。该产品可作为杀虫剂用于防控观赏作物及数种粮食作物中的粉纹夜蛾。此外,美国环保署建议批准陶氏益农植物防护剂产品,该产品的活性成分为DAS-81419-2大豆中表达的苏云金芽孢杆菌蛋白Cry1Ac和Cry1F。该产品可保护大豆作物免受鳞翅目害虫幼虫的取食。     

松原Songnox 一站式系统完美诠释“橡塑高科技，百业新动力”

松原集团在本届展会上以“橡塑高科技,百业新动力”为主题,展示其Songnox耐高温一站式系统产品系列。 Songnox耐高温一站式系统产品系列为客户提供全面的工具包,可根据客户要求量身设计各种解决方案,产品持久耐用,能够经受恶劣环境考验,可广泛用于汽车工业等终端应用领域。     

电池级磷酸铁中硫酸根的脱除研究

水热法合成的磷酸铁粗产品中硫酸根的去除已成为磷酸铁制造行业的关键技术。分别以纯水,热水,柠檬酸溶液为洗水洗涤粗产品,结果表明,纯水和热水洗涤之后的产品中硫酸根含量可降低至行业标准的要求(0.01%),继续加大洗水量也无法再脱除硫酸盐杂质,而柠檬酸溶液的洗涤可将产品中硫酸盐完全脱出,且洗水量大大降低,经分析无残留柠檬酸存在产品中。硫酸根含量对磷酸铁锂正极材料电化学性能影响明显。     

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。