LP-1型蓄电池复配增效剂的研究与实验

针对蓄电池的复配增效问题,研究和试制出的LP-1型复配增效剂,经实验证明可显著提高电池活性利用率和电容量,能大幅度延长其循环寿命,且可明显减少铅污染对人体的侵害,节约铅原料,是一种具有广阔前景和实用价值的绿色增效产品。     

阻燃型工程塑料的漏电起痕控制

对阻燃型工程塑料的电性能，尤其是相比漏电起痕指数（CTI）进行了描述。针对不同的阻燃分别讨论了各种能提高复合材料CTI值的合适的阻燃协效剂。     

金属氢氧化物阻燃剂的现状与发展前景

综述了金属氢氧化物中的氢氧化铝(三水合氧化铝)及氢氧化镁目前的市场状况及2004~2007年间全球对其需求量的增长情况,分析了这2种阻燃剂在电缆及印刷电路板中应用的发展趋势,讨论了提高氢氧化铝及氢氧化镁阻燃效率的技术途径。     

Atrovenetin as a potent antioxidant compound from penicillium species

We have established a program to screen large numbers of wild-type fungi isolated from soil for potential producers of antioxidants and synergists for tocopherol (Toe). An antioxidant and potent Toc synergist was isolated from mycelial mats ofPenicillium paraherquei. It was one of the deoxyherqueinone-type phenalenones and has been identified as atrovenetin. Under autoxidation conditions, the induction periods of this compound (0.025%) tested by the active oxygen method were 571 and 171 hr in lard with and without Toc (0.04%), respectively. It was also capable of stabilizing vegetable oils such as soybean, rapeseed and palm oils.     

ABS的卤素-金属氧化物协同阻燃体系

研究了ＡＢＳ的卤素－金属氧化物协同阻燃体系，在四溴双酚Ａ（ＴＢＡ）为阻燃剂，考察了不同金属氧化物对ＴＢＡ的协同效应，找出了协同效应的变化规律。绘制不同阻燃体系的等氧指数曲线，从等氧指数曲线的形状和数值直观地反映了每一阻燃体系的效能。     

Compounds modifying male responsiveness to main female sex pheromone component of the currant borer,Synanthedon tipuliformis clerk (Lepidoptera: Sesiidae) under field conditions

Various blends of (E,Z)-2,13-octadecadien-1-ol acetate (E,Z2,13-18: OAc), (Z)-13-octadecen-1-ol acetate (ZOAc) (two previously identified pheromone components of the currant borer,Synanthedon tipuliformis females), (E,Z)-, (Z,Z)-3,13-octadecadien-1-ol acetates (E,Z- andZ,Z3,13–18:OAc), andZ,Z-3,13-octadecadien-1-ol (Z,Z3,13–18:OH) were evaluated in field traps in three geographic regions. MaleS. tipuliformis were attracted toE,Z2,13–18:OAc in Tasmania, New Zealand, and Hungary. Captures were not influenced by the addition ofZ13–18: OAc, tested in Tasmania and Hungary. In Hungary and New Zealand, the addition ofE,Z3,13–18: OAc toE,Z2,13–18:OAc in a ratio of 100:3 was strongly synergistic; however, in Tasmania captures were reduced. The addition ofZ,Z3,13–18: OAc toE,Z2,13–18:OAc in a ratio of 101 resulted in strong inhibition of trap captures in Hungary. WhenZ,Z3,13–18: OAc was added in different ratios to a 100:3 binary mixture ofE,Z2,13–18:OAc/E,Z3,13–18:OAc in Hungary, it strongly reduced captures at, or above a ratio of 10033 but no decrease was recorded at a ratio of 10031. In New Zealand and Tasmania it reduced captures at a ratio of 10031. Observations of behavioral responses of maleS. tipuliformis in Hungary to synthetic baits in the field showed thatE,Z2,13–18:OAcby itself evoked close-range approaches to the source from only 20% of males, whereas the addition ofE,Z3,13–18:OAc in a ratio of 1003 raised that value to 65 %. Landing on the source was significant only at sources with a 10030.1310 blend ofE,Z2,13–18:OAc/E,Z3,13–18: OAc/Z,Z3,13–18: OAc/Z,Z3,13–18: OH/Z13–18: OAc. A 1003 binary mixture ofE,Z2,13–18:OAc/E,Z3,13–18:OAc in a dose range of 10–1000 g can be recommended for more effective field monitoring ofS. tipuliformis populations in Hungary and in New Zealand. In Tasmania, at present,E,Z2,13–18: OAc by itself is the most potent sex attractant of the species.     

Isolation of pheromone synergists of bark beetle,Pityogenes chalcographus,from complex insect-plant odors by fractionation and subtractive-combination bioassay

Capillary gas chromatography with columns of different polarity and two-dimensional fractionation of effluents were used with novel subtrac-tive-combination bioassays to rigorously isolate host- and insect-produced pheromone synergists of the bark beetlePityogenes chalcographus (Coleop-tera: Scolytidae). Methyl (E,Z)-2,4-decadienoate (E,Z-MD) and the previously identified chalcogran were found to be synergistically attractive to both sexes.E,Z-MD was produced sex-specifically in males, and only when they had fed on host-plant tissue. A Norway spruce monoterpene fraction (including -pinene, -pinene, and camphene) increased the attractive response to the pheromone components. Dose-response curves forE,Z-MD and chalcogran in the laboratory bioassay indicated the two components are highly synergistic. The isolation methods are important for further progress in identifying certain semiochemical synergists found in trace amounts in complex chemical mixtures, such as when insects must feed in host plants in order to produce pheromone.     

The Effect of Hydroxyoxime Isomer Conformation on Metal Extraction in the LIX 63/Versatic 10 Synergistic System

LIX 63 contains an aliphatic α-hydroxyoxime as its active component, with two isomeric forms (anti and syn) being present in a 3:2 ratio in “as supplied” reagent. In the present work, > 90% pure syn hydroxyoxime was isolated from LIX 63. Examination of metal extraction properties in systems containing Versatic 10 with anti and/or syn hydroxyoxime established unequivocally that the syn isomer plays no beneficial role in metal extraction in this synergistic solvent extraction system, thereby excluding the possibility of monodentate coordination of hydroxyoxime. Economic consequences arising from this outcome and the opportunity to maximize reagent utilisation are briefly discussed.     

低烟无卤阻燃聚烯烃电缆料抗开裂性能的研究

通过添加特种抗开裂阻燃协同剂,提高了低烟无卤阻燃电缆料的抗开裂性能。抗开裂阻燃协同剂的添加提高材料的力学性能。氧指数测试表明:阻燃电缆料燃烧后可形成炭层,提高了材料的阻燃稳定性,防止滴落现象。力学性能测试表明:阻燃剂与树脂的相容性增强,并且不影响原有的力学性能。低烟无卤阻燃电缆护套料具有较好的抗开裂性能。     

高pH下复配防霉剂的初探

防霉剂品种多样,各有各的优缺点。文章分别测定5种防霉剂在pH为6、7、8、8.5下单独作用的杀菌效果,结果表明OIT和多菌灵在各种pH作用环境下效果最好,将这5种防霉剂进行复配,以判断复配后的防霉剂在pH较高的环境下是否具有增效作用,结果表明OIT和多菌灵的复配增效最明显,为无铬白湿皮的防霉剂的合理复配应用提供了理论依据。