橡胶促进剂生产与市场分析

近年来我国橡胶促进剂伴随着橡胶、轮胎工业发展而快速发展，生产能力已经呈现了严重的供过于求的局面，2006年上半年价格大幅度下滑。面对严峻的形势，我国橡胶促进剂工业应加大环保新品种开发与应用，推进上下游一体化和装置中清洁工艺的推广与应用，提升我国橡胶促进剂的竞争力。     

橡胶促进剂M项目介绍

橡胶促进剂M为通用型橡胶硫化促进剂,可单独使用,亦可混用。它是生产噻唑类硫化促进剂不可缺少的中间体,经深加工后能够制造出DM、CZ、NOBS、NS、DZ等各种橡胶促进剂。它也可用作硫化矿物捕集剂、农药(氢硫剂或M剂)和腐蚀抑制剂,纯品还用作金属特种试剂。 市场情况 我国现有橡胶促进剂60类、16个品种,目前总生产能力约2.4万t/a,其中橡胶促进剂M约占30％左右。随着我国橡胶工业的发展,对橡胶促进剂的需求量会不断增加。     

橡胶促进剂清洁合成工艺研究进展

目前制约国内橡胶促进剂生产与发展最大的瓶颈是环境污染问题，尽管目前国内促进剂企业均采用一定措施对生产过程中产生的“三废”进行处理，但是环境污染治理关键在于将污染消灭在工艺之中，因此推广清洁工艺成为我国橡胶促进剂行业未来发展的关键。本文介绍了目前国内外橡胶促进剂部分品种清洁工艺研究进展和应用情况。     

硫化促进剂ZDC的生产方法

硫化促进剂ＺＤＣ的生产方法马草（沈阳市辽中化工总厂）本文介绍了橡胶硫化促进剂的作用和种类，阐述了促进剂ＺＤＣ的合成原理，生产工艺以及提高其收得率的措施。１、前言在橡胶硫化中，凡能加快橡胶与硫化剂反应速率的物质，统称为硫化促进剂，简称促进剂。它在橡胶硫...     

2022年我国炭黑及橡胶助剂进出口概况

<正>据海关总署统计，2022年，我国白炭黑、炭黑、橡胶促进剂、橡胶防老剂合计进口量为21.37万吨，同比（下同）下降0.33%；进口金额为6.78亿美元，增长6.58%。合计出口量为159.48万吨，增长15.35%；出口金额为26.91亿美元，增长30.37%。本文详细介绍了白炭黑、炭黑、橡胶促进剂和橡胶防老剂2022年的进出口情况。     

橡胶促进剂清洁化生产和环保型产品开发

简要阐述了我国橡胶促进剂清洁生产工艺思路,以及开发绿色安全促进剂以替代可产生致癌性亚硝胺的促进剂。指出采用绿色清洁生产工艺及生产环保型促进剂是橡胶促进剂的发展方向。     

橡胶助剂REACH注册现状及注册成本分析

介绍橡胶助剂的REACH法规义务、正式注册进展和已完成正式注册的橡胶助剂物质,主要分析促进剂TBBS、促进剂MBT和防焦剂CTP的注册成本。指出我国橡胶助剂企业在REACH注册中应注意的问题并提出建议。     

橡胶助剂货足价稳竞争激烈

橡胶助剂货足价稳竞争激烈今年橡胶助剂预排产计划为：防老剂２７５３５ｔ，促进剂３８７１０ｔ。促进剂的排产计划超过了防老剂，主要原因是兰化公司有机厂今年计划产量为１３０００ｔ，占国内总产量的１／３。去年，我国橡胶制品产量增长幅度较大，从今年橡胶消费需求来...     

促进剂CZ的合成新法

促进剂ＣＺ的合成新法何龙柏（化工部西北橡胶工业制品研究所７１２０２３）ＣＺ，在我国已改名为ＣＢＳ（即Ｎ－环己基－２－苯并噻唑次磺酰胺），是常用的后效性橡胶硫化促进剂，它具有抗焦烧和硫化时间短两大特点，广泛用于轮胎、胶鞋、胶管、胶带、电缆和一般工业制品...     

橡胶粘合促进剂的研制与开发

本文评述了钴盐橡胶合促进剂的研究进展，比较了各种粘合促进剂对橡胶－钢丝帘线的粘合性能，成功地研制开发了一种新型橡胶粘合促进剂，其主要性能指标与国际上著名的橡胶粘合促进Ｍａｎｏｂｏｎｄ６８０Ｃ基本一致，是一咱高附加值精细化工产品。     

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。