迅猛发展的广东玻璃钢工业

“对外开放、对内搞活”给广东省玻璃钢工业带来了生机。据广东省玻璃钢工业协会提供消息:1987年广东玻璃钢产量是前3年的总和,1988年上半年全省产量又达四千多吨。产品品种有四百多种。玻璃钢冷却塔、玻璃钢渔船、玻璃钢快艇、玻璃钢浴缸、玻璃钢涂铜制品、玻璃钢游艺机、玻璃钢滑水槽、玻璃钢大型艺术装饰品立足广东,走向全国,进入国外。     

上海玻璃钢研究院有限公司测试中心/中国上海测试中心玻璃钢/复合材料行业测试点

<正>上海玻璃钢研究院有限公司测试中心,隶属于上海玻璃钢研究院有限公司,承担着本院产品研发所涉及的材料性能测试、新材料性能研究、玻璃钢测试国家标准制定等工作。中国上海测试中心玻璃钢/复合材料行业测试点,是上海市科委设立的玻璃钢/复合材料行业服务机构,挂靠于上海玻璃钢研究院有限公司,对国内外玻璃钢/复合材料及其原材料     

上海玻璃钢研究院有限公司测试中心/中国上海测试中心玻璃钢/复合材料行业测试点

<正>上海玻璃钢研究院有限公司测试中心,隶属于上海玻璃钢研究院有限公司,承担着本院产品研发所涉及的材料性能测试、新材料性能研究、玻璃钢测试国家标准制定等工作。中国上海测试中心玻璃钢/复合材料行业测试点,是上海市科委设立的玻璃钢/复合材料行业服务机构,挂靠于上海玻璃钢研究院有限公司,对国内外玻璃钢/复合材料及其原材料厂家和研究机构提供性能测试与研究、设计咨询、玻璃钢产品结构试验等服务,并对外开展研究合作项目。服务项目如下:     

《玻璃钢制品工》国家职业资格鉴定培训 国家建材行业职业技能鉴定036站

正常年开班2005年6月,经国家劳动和社会保障部批准成立了国家建筑材料行业职业技能鉴定036站,颁发了国家职业技能鉴定许可证。036站是全国唯一《玻璃钢制品工》国家职业资格鉴定机构。面向玻璃钢行业定期发布鉴定公告,根据《玻璃钢制品工国家职业标准》,按照国家有关法律法规及职业技能考务管理制度在规定范围内开展玻璃钢模压工、玻璃钢拉挤工、玻璃钢手糊工、玻璃钢缠绕工、玻璃钢真空灌注成型工、合成树脂工、玻璃钢检测工职业资格鉴定工作,其中每个工种分为五个等级,包括     

第二十届全国玻璃钢/复合材料学术年会征文通知

正2014年恰逢《玻璃钢/复合材料》期刊创刊40周年和中国硅酸盐学会玻璃钢分会举办第二十届全国玻璃钢/复合材料学术年会,同时也是国内高校开办玻璃钢/复合材料学科专业走过四十年。玻璃钢学会将携手玻璃钢/复合材料行业"老三所三校"("老三所"指北京玻璃钢研究设计院、哈尔滨玻璃钢研究院和上海玻璃钢研究院,"老三校"指武汉理工大学、哈尔滨工业大学和华东理工大学)6个单位共同     

第二十届全国玻璃钢/复合材料学术年会征文通知

正2014年恰逢《玻璃钢/复合材料》期刊创刊40周年和中国硅酸盐学会玻璃钢分会举办第二十届全国玻璃钢/复合材料学术年会,同时也是国内高校开办玻璃钢/复合材料学科专业走过四十年。玻璃钢学会将携手玻璃钢/复合材料行业"老三所三校"("老三所"指北京玻璃钢研究设计院、哈尔滨玻璃钢研究院和上海玻璃钢研究院,"老三校"指武汉理工大学、哈尔滨工业大学和华东理工大学)6个单位共同     

关于第二十届全国玻璃钢/复合材料学术年会征文的通知

正各相关单位:2014年恰逢《玻璃钢/复合材料》期刊创刊四十周年、中国硅酸盐学会玻璃钢分会举办第二十届全国玻璃钢/复合材料学术年会,同时也是国内高校开办玻璃钢/复合材料学科、专业四十周年。玻璃钢学会拟借此机会,携手创建玻璃钢/复合材料产业和学科建设的院所/高校共同举办"第二十届全国玻璃钢/复合材料学术交流会暨中国玻璃钢/复合材料学术发展回顾与展望"活动。活动同期将出版纪念专     

上海玻璃钢研究院有限公司测试中心/中国上海测试中心玻璃钢/复合材料行业测试点

正上海玻璃钢研究院有限公司测试中心,隶属于上海玻璃钢研究院有限公司,承担着本院产品研发所涉及的材料性能测试、新材料性能研究、玻璃钢测试国家标准制定等工作。中国上海测试中心玻璃钢/复合材料行业测试点,是上海市科委设立的玻璃钢/复合材料     

玻璃钢/复合材料应用与未来——记第十九届全国玻璃钢/复合材料学术年会

2012年11月14至16日,两年一届的全国玻璃钢/复合材料学术年会在青岛顺利召开,中国硅酸盐学会、中国硅酸盐学会玻璃钢分会、中国复合材料工业协会、《玻璃钢/复合材料》杂志社、北京玻钢院复合材料有限公司、哈尔滨玻璃钢研究院、南京玻璃纤维研究设计院、上海玻璃钢研究院有限公司、     

关于第二十届全国玻璃钢/复合材料学术年会征文的通知

正各相关单位:2014年恰逢《玻璃钢/复合材料》期刊创刊四十周年、中国硅酸盐学会玻璃钢分会举办第二十届全国玻璃钢/复合材料学术年会,同时也是国内高校开办玻璃钢/复合材料学科、专业四十周年。玻璃钢学会拟借此机会,携手创建玻璃钢/复合材料产业和学科建设的院所/高校共同举办"第二十届全国玻璃钢/复合材料学术交流会暨中国玻璃钢/复合材料学术发展回顾与展望"活动。活动同期将出版纪念专     

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.     

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.     

Many Drugs of Abuse May Be Acutely Transformed to Dopamine,Norepinephrine and Epinephrine In Vivo

It is well established that a wide range of drugs of abuse acutely boost the signaling of the sympathetic nervous system and the hypothalamic–pituitary–adrenal (HPA) axis, where norepinephrine and epinephrine are major output molecules. This stimulatory effect is accompanied by such symptoms as elevated heart rate and blood pressure, more rapid breathing, increased body temperature and sweating, and pupillary dilation, as well as the intoxicating or euphoric subjective properties of the drug. While many drugs of abuse are thought to achieve their intoxicating effects by modulating the monoaminergic neurotransmitter systems (i.e., serotonin, norepinephrine, dopamine) by binding to these receptors or otherwise affecting their synaptic signaling, this paper puts forth the hypothesis that many of these drugs are actually acutely converted to catecholamines (dopamine, norepinephrine, epinephrine) in vivo, in addition to transformation to their known metabolites. In this manner, a range of stimulants, opioids, and psychedelics (as well as alcohol) may partially achieve their intoxicating properties, as well as side effects, due to this putative transformation to catecholamines. If this hypothesis is correct, it would alter our understanding of the basic biosynthetic pathways for generating these important signaling molecules, while also modifying our view of the neural substrates underlying substance abuse and dependence, including psychological stress-induced relapse. Importantly, there is a direct way to test the overarching hypothesis: administer (either centrally or peripherally) stable isotope versions of these drugs to model organisms such as rodents (or even to humans) and then use liquid chromatography-mass spectrometry to determine if the labeled drug is converted to labeled catecholamines in brain, blood plasma, or urine samples.     

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.     

Novel polyurethane coating technology through glycidyl carbamate chemistry

Glycidyl carbamate chemistry combines the excellent properties of polyurethanes with the crosslinking chemistry of epoxy resins. Glycidyl carbamate functional oligomers were synthesized by the reaction of polyfunctional isocyanate oligomers and glycidol. The oligomers were formulated into coatings with several amine functional crosslinkers at varying stoichiometric ratios and cured at different temperatures. Properties such as solvent resistance, hardness, and impact resistance were dependent on the composition and cure conditions. Most coatings had an excellent combination of properties. Studies were carried out to determine the kinetics of the curing reaction of the glycidyl carbamate functional oligomers with multifunctional and model amines. Detailed kinetic analysis of the curing reactions was also undertaken. The results indicated that the glycidyl carbamate functional group is more reactive than a glycidyl ether group. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, on October 27–29, 2004, in Chicago, IL.