微晶地板防水蜡的研制与开发

以抚顺石化公司的脱油蜡、蜡下油为主要原料,通过加入添加剂改变晶体结构,实现微晶化,开发出微晶地板防水蜡产品.产品配方合理,生产工艺简便易行,易于工业化生产,对提高强化复合地板防水性能,阻止其有害物质释放,提高抚顺石化石蜡产品附加值,开发特种蜡新产品有着重要的意义.     

蜡下油发汗制取微晶地板防水蜡的可行性研究

以某装置中间产物蜡下油为主要原料,通过发汗等手段开发出强化复合地板防水蜡。该产品配方合理,防水性能优越,对提高强化复合地板防潮性能有明显效果,为丰富抚顺石化特种蜡产品种类,提高石蜡产品附加值有着重要意义。     

微晶硬脂地板防水蜡产品面世

7月10日,河南油田精蜡厂新研制出来的特种蜡产品微晶硬脂地板防水蜡,装车发往北京一家客户。该产品成功推向市场,标志着国内特种蜡家族再添新丁。     

系列地板防水蜡的研制

地板防水蜡要求有适宜的稠度、凝固点和良好的化学稳定性、热稳定性及防水性。通过对原料油、原料蜡及添加剂复配的研究,确定系列地板防水蜡配方组成,经实验室检测分析和用户使用表明:该系列蜡具有良好的化学稳定性、热稳定性及防水性能,完全可以替代欧洲进口同类产品。     

河南油田精蜡厂成功研制保鲜蜡2号

近日,从河南油田精蜡厂传来消息,该厂新研制开发的保鲜蜡2号顺利实现了工业化生产。保鲜蜡涂覆于纸箱后用作水果、蔬菜的保鲜包装,是一种无毒高效的绿色环保产品。该产品具有耐高温性、防水防潮性、黏附性和一定的硬度,不仅能有效隔绝空气,保鲜果蔬,而且能够在热带地区使用,运输过程中不会出现塌折现象。2009年,根据一用户需求,河南油田精蜡厂成功开发了保鲜蜡1号产品,并在3年来一直为该用户供货,加工后的产品主要用于出口。     

车用上光蜡的研制

本工作考察蜡的结构,乳化剂种类、组分配比、搅拌时间、固体类型和乳化温度等参数,对于三相(水-油(蜡)-固体)乳状液稳定性的影响找出最佳工艺流程,成功制备了特殊型号的高效“车用上光蜡”产品。这种产品具有上光和清洁双重功能、高的稳定性且流动性也非常适合实际应用。形成的光亮膜具有抗腐蚀及防水等作用。     

GE硅油技术提升HOLMENKOL滑雪蜡性能

对于高品质的滑雪蜡来说，其防水程度是提升运动员滑雪速度的关键，即能够阻挡冰雪和湿气的粘附以防止降低滑雪板的移动速度。因此，在滑雪蜡配方中需要加入某种添加剂以增强滑雪蜡的防水性和耐久性。虽然目前用得最多的是氧化物添加剂，然而令人遗憾的是，此类添加剂不能很好地溶解在蜡基质（通常为石蜡）中。这就大大限制了它们所能提供的防水能力。     

纤维板专用乳化蜡防水添加剂的研制

固体或熔化石蜡作为防水添加剂，与胶料配伍不好，产品质量差。纤维板专用乳化蜡防水添加剂，颗粒度小，在纤维板制造过程中通过有效的破乳，使微小的蜡颗粒从水相析出，均匀地吸附在木纤维上，从而达到耗蜡量低、抗水性好的要求。     

HP型多用光亮剂的研制及性能测试

本文叙述了一种新的水包油型乳液——HP型多用光亮剂的制备及性能测试。该光亮剂由蜡、硅油、表面活性剂和填料组成，与国外同类产品相比，具有优异的上光性、防水性及热稳定性，其它性能与国外同类产品相当。     

GE的硅油技术用于防水滑雪蜡有助于参赛选手提高滑雪速度

对于高品质的滑雪蜡来说,其防水程度是提升速度的关键。有很多不同的添加剂被用来增强滑雪蜡配方的防水性和耐久性,其中最受欢迎的添加剂便是氟化物添加剂。遗憾的是,此类添加剂不能很好地溶解在蜡基质中,这就限制了其应用。作为各个国家/地区参赛队伍的滑雪蜡供应商之一———HOLMENKOL公司力求找到一种新的途径,使滑雪蜡技术能够突破现有添加剂的局限性。在试用了来自GE拜耳有机硅实验室(GE Bayer Silicone Laboratories)的硅油后,HOLMENKOL/GE联合小组发现一种刚好具有所需化学性质的候选材料。GE的这种有机硅材料不仅增强了…     

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。