彩色低烟低卤CSM/EPDM电缆护套胶料的研制

研制出了一种耐环境性较好的彩色低烟低卤氯磺化聚乙烯（ＣＳＭ）／ＥＰＤＭ电缆护套胶料。得出的胶料优化配方为：ＣＳＭ／ＥＰＤＭ（８５～９０）／（１５～１０）;硫化体系（硫化剂ＤＣＰ／共硫化剂ＨＶＡ２／共硫化剂ＴＡＩＣ）６５～７０;补强填充剂（ＬＥＥ白滑粉／煅烧陶土／轻质碳酸钙）１００～１１０;三盐基马来酸铅３５～４０;金红石型钛白粉３０～４０;耐辐射剂（二苯胺类／磷酸苯酯类）１５～２０;阻燃剂（氢氧化铝／氢氧化镁／三氧化二锑）１００～１１５;其它２０～４０。胶料及电缆成品性能满足ＩＥＣ５０２（１９９４）标准及核电站使用要求。     

低损耗阻燃高电压EPDM绝缘胶料的开发

在低损耗阻燃高电压ＥＰＤＭ绝缘胶料的配方中,阻燃剂选择由硅烷偶联剂和硬酯酸锌联合处理的１８０目的氢氧化铝和氢氧化镁,用量分别为４０～７０和２０～４０份,硫化助剂选择三（甲基丙烯酸三羟甲基）丙烯酸酯,用量为１．５～２．５份;软化体系采用超低门尼粘度的ＥＰＤＭＫｅｌｔａｎ１４４６Ａ与微晶蜡并用,绝缘胶料的性能符合ＩＥＣ５０２—１９９４的要求,并具有低的电损耗和耐高电压性能。     

配合剂对EPDM阻燃电缆胶料性能的影响

介绍硫化剂ＤＣＰ、共硫化剂ＴＡＩＣ（异氰脲三烯丙酯）和ＨＶＡ２（Ｎ，Ｎ′间亚苯基双马来酰亚胺）、分散剂硬脂酸及卤素和无卤阻燃剂对ＥＰＤＭ阻燃电缆胶料性能的影响。硫化剂ＤＣＰ用量为３份左右、共硫化剂ＴＡＩＣ／ＨＶＡ２并用（并用比为１／０．５）、硬脂酸用量较大、卤素或有机氮阻燃剂用量适中，则ＥＰＤＭ阻燃电缆胶料的物理和电性能较好。     

氢氧化镁填充的VAMAC无卤低烟阻燃电缆胶料的配方与性能

在乙烯－丙烯酸酯橡胶（ＶＡＭＡＣ）无卤低烟阻燃电缆胶料配合中，主要填料氢氧化镁及其表面处理剂硬脂酸锌的用量是关键，硫化体系也较重要。胶料优化配方为：ＶＡＭＡＣ１００；２，５－二甲基－２，５－双（叔丁基过氧）己烷３．０～３．３；Ｎ，Ｎ′－间亚苯基双马来酰亚胺和三（甲基丙烯酸三羟甲基）丙酯０．８～１．０。硬脂酸锌处理过的陶土＋ＬＥＥ白滑粉５０～６０；加工助剂１２～１４；硬脂酸锌１．２～１．４；氢氧化镁４３～４７；其它６～７。胶料阻燃、低烟和物理机械性能良好，成品电缆通过ＧＢ１２６６６—９０燃烧试验，且完全满足设计和ＩＥＣ５０２（１９９４）性能要求     

核电站用低烟低卤彩色CSM电缆护套的开发与应用

采用低含氯量的氯磺化聚乙烯（ＣＳＭ－４５）作主体骨架材料，并用１０～１５质量份（简称“份”，以下同）的三元乙丙橡胶ＮＯＲＤＥＬ２７２２，以过氧化二异丙苯（ＤＣＰ）作硫化剂，ＨＶＡ－２（Ｎ，Ｎ－间亚苯基双马来酰亚胺）和ＴＡＩＣ（三烯丙基异氰脲酸酯）作助硫化剂，氢氧化铝和氢氧化镁作阻燃剂制作而成的核电站用低烟低卤彩色ＣＳＭ护套应用于核电站电缆时，其成品电缆可具有良好的耐辐射性、低有害性和良好的物理机械性能，适合于核电站使用，并具有较强的使用价值和一定的社会与经济效益。     

汽车点火线绝缘式护套的研制

汽车点火线绝缘式护套的基本配合为：生胶采用氯磺化聚乙烯（ＣＳＭ４５）／乙烯－醋酸乙烯共聚物（ＥＶＡ４０）［（５５－６５）／（３５－４５）］并用体系；硫化剂为过氧化物，如１，４－双叔丁基过氧化二异丙苯；补强填充体系主要为沉淀法硫酸钡（５０－６０份），并辅之以锻烧陶土和ＬＥＥ白滑粉（共４０份左右）；防老剂体系为防老剂ＲＤ／ＤＬＴＤＰ并用体系（４．５－５．０份）；加工助剂有合成酯类增塑剂ＷＢ３５０、微晶石蜡和均化剂ＷＢ２２２（饱和脂肪酸酯）等。胶料的物理机械性能、介电性能及耐热性、耐油性、低温柔软性等满足设计及ＩＥＣ－５０２（１９９４）标准中有关１－３０ｋＶ挤包高聚物固体绝缘电力电缆的性能要求，且加工性能良好。     

中高压电力电缆用EPDM绝缘材料的开发

在１００份三元乙丙橡胶（ＥＰＤＭ）中加入ＺｎＯ５－８份，ＬＤＰＥ８－１０份，微晶石蜡４－７份，用硬脂酸锌片的煅烧陶土５０－６０份，Ａｌ（ＯＨ）３４０－５０份，硫化剂５－６份，防老剂１．２－１．６份，填料表面处理剂２－２．５份，制备了中高压电力电缆用ＥＰＤＭ绝缘材料。实验结果表明，成品电缆的物理机械性能可满足ＩＥＣ５０２－１９９４的要求。     

吉尔130汽车发动机供油系统O形密封圈的研制

含有活性添加剂的Ｍ－８＿Ｂ１和Ｍ－８＿Ｔ２Ｋ的两种油品对ＮＢＲ－１８Ｏ形密封圈有一定的副作用，通过调整ＮＢＲ胶料硫化体系（硫黄０．３；促进剂ＣＺ１．５；促进剂Ｍ０．５；硫化剂ＤＣＰ２．０）和补强剂炭黑的用量（高耐磨炭黑５５；喷雾炭黑４０）．可以使其满足抗两种油品侵蚀的性能要求。另外，在ＮＢＲ胶料中添加２５份耐寒增塑剂（邻苯二甲酸二丁酯１０；癸二酸二辛酯１５）．可提高胶料的耐低温性能，并使脆性温度降至－６５℃以下。     

EPDM／CPE并用胶料的阻燃性与电绝缘性研究

主要探讨了ＥＰＤＭ／ＣＰＥ并用比、阻燃剂（Ｓｂ２Ｏ３、十溴联苯醚）的配比、填料品种及用量、硫化剂ＤＣＰ及助交联剂ＴＡＩＣ等因素对ＥＰＤＭ／ＣＰＥ并用胶料力学性能、阻燃性能及电性能的影响,结果表明：选择ＥＰＤＭ４０,ＣＰＥ６０．３ＰｂＯ１．２,２ＰｂＯ１．２,ＤＣＰ２～３,ＴＡＩＣ１,滑石粉３０,Ｓｂ２Ｏ３１０～１５,ＺＲ－１０２０～３０,ＳＡ１,ＺｎＯ５,可制得综合性能较好的ＥＰＤＭ／ＣＰＥ并用胶     

EPDM/CIR防腐蚀衬里的研究

对ＥＰＤＭ／氯化丁基橡胶（ＣＩＲ）防腐蚀衬里胶料研究表明，ＥＰＤＭ／ＣＩＲ防腐蚀衬里胶料具有优异的耐５０℃次氯酸钠溶液（浓度为１０％）、１０５～１２０℃硫酸溶液（浓度为２０％～７０％）、１００℃磷酸溶液（浓度为８５％）腐蚀性能；胶料工艺性能好，压延胶片挺性好、收缩率小、表面光滑和平整；衬里与基体碳钢的粘合强度达５．２ｋＮ·ｍ－１；衬里接头、弯曲及拐角部位无内应力。     

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。