个体防护装备高新技术纤维材料发展前景分析

分析了高新技术纤维材料在个体防护装备上的典型应用,提出了高新技术纤维是个体防护装备化纤材料未来发展的关键点,同时指出了个体防护装备高新技术纤维的未来发展方向。     

耐高温阻燃纤维概述

耐高温阻燃纤维是近年来高性能纤维材料中发展最为迅速的一类特种纤维材料。概述耐高温阻燃纤维的一些制备方法、产品主要性能特点,并从多方面介绍了耐高温阻燃纤维的应用领域。     

阻燃材料在军事纺织品中的应用

简述了现有的阻燃纤维改性方式及相应阻燃机理,综述了阻燃材料在军事纺织品中的应用,重点介绍了阻燃材料在军用服装、防弹服、防弹头盔及其他军用防护装备方面的应用,指出军用纺织品领域对阻燃材料存在巨大需求以及高性能阻燃材料的未来研究发展方向。     

科技革新推动纤维产业颠覆性发展

<正>纤维材料已成为全球发展最快和最活跃的科学技术领域之一,先进纤维材料领域的科技革新正推动纤维产业颠覆性发展,催生新一代纤维产业体系的建立。我国纤维新材料,特别是高新技术纤维的研究取得了很大进展,与发达国家先进水平的差距大幅缩小。近几年,通过系列产业发展规划,我国在高性能     

纤维材料在航空领域的应用

随着航空工业的迅速发展,芳纶、碳纤维等高技术纤维材料及其复合材料得到了广泛应用。介绍了航空复合材料的要求和特点,并对降落伞、个体防护装备、弹射座椅等航空用纺织材料及其要求进行了重点介绍。     

表面金属化纤维材料研究进展

随着航空、航天、军工、电子等领域技术的快速发展,对低密高强的纤维材料提出了更多功能特性需求,如电磁屏蔽、高导电等,纤维表面金属化有望改善其导电和屏蔽性能,已成为当前研究热点之一.本文介绍了纤维材料常用表面金属化工艺,重点概述了碳质纤维(如碳纤维、碳纳米管纤维)和有机类纤维(如芳纶、聚酰亚胺纤维)的金属化研究现状及其应用...     

信息动态

2008年高新技术纤维材料技术研讨会暨高新技术纤维专业委员会年会在上海召开2008年11月10日,中国化学纤维工业协会在上海市光大会展国际酒店召开了2008年高新技术纤维专业委员会会议。会议由中国化学纤维工业协会副会长叶永茂主持,中国化学纤维工业协会会长郑植艺出席了会议,中国工程院院士蒋士成、全国特种合成纤维信息中心主任罗益锋、总后勤部军需装备研     

粘胶纤维与Lyocell纤维增强聚乳酸材料对篮球训练器材及装备性能的比较

篮球运动员的训练水平的提升与其使用的篮球训练设备、竞技装备等的力学性能关系密切。以粘胶纤维材料为例,对高力学性能的现代先进材料与篮球竞技的融合发展进行研究,对篮球领域最常用的几种优秀纤维材料的性能优势如抗拉强度、抗弯强度、抗冲击强度等进行概括,着重分析了粘胶纤维与Lyocell纤维增强聚乳酸材料在篮球训练设施、篮球、篮球鞋等领域中的应用,旨在为高分子纤维材料产业与体育产业的融合发展提供借鉴。     

军用纺织材料中纤维材料起主导作用

在满足军事高性能方面需求时,特别在作战环境,最具重要影响的是纤维材料。由于美国纺织工业的巨大成就和政府开发高性能纤维的努力,美军在军服和装备方面配备有很好的防护服装技术用品。主要有优异的防弹纤维材料。如芳族聚酰胺和聚乙烯纤维为主制造的盔甲。在现代化战争中挽救众多士兵生命方面作出了重大贡献。防弹背心防子弹、     

海藻酸纤维的性能与应用

海藻酸纤维是一种具有优良生物活性的功能性纤维材料。海藻酸可以与许多种类的金属离子结合后形成富含金属离子的纤维材料,使纤维具有优良的阻燃及屏蔽电磁波的性能。以海藻酸钙纤维为原料制备的医用敷料在与伤口渗出液接触后,可以在吸收大量的渗出液后形成具有促进伤口愈合的水凝胶体,在医疗卫生领域具有特殊的应用价值。     

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。