发酵增效剂对黄霉素发酵效价的影响

试验研究了发酵增效剂在黄霉素发酵过程中对促进黄霉素效价的影响。结果显示,在发酵摇瓶中添加不同含量的发酵增效剂,有助于黄霉素发酵效价的提高,其中以添加300ppm浓度的增效剂效果最佳。     

增效剂对油溶性茶多酚硒的抗氧化增效作用研究

在100℃恒温及黑暗条件下,采用空气自然氧化考察了维生素C、酒石酸、柠檬酸对LTP-Se在蓖麻油中抗氧化性能。结果表明m(增放剂)的添加量为0.01%、0.03%、0.05%时,对油溶性茶多酚硒抗氧化增效效果较好,m(VC)添加量为0.05%,LTP-Se添加浓度为100mg/kg的油样抗氧化生最佳。     

增效剂SBDT对天然橡胶的防护作用

用环氧大豆油和十二硫醇合成出增效剂ＳＢＤＴ，增效剂ＳＢＤＴ耐挥发、耐抽提。用热空气老化和热分析法考察了ＳＢＤＴ分别与抗氧剂４０１０、Ｄ复配并用后对天然橡胶（ＮＲ）的热氧防护作用，并与含硫辅助抗氧剂ＤＬＴＰ的效能进行了对比。实验结果表明，该增效剂ＳＢＤＴ对胺类抗氧剂有明显的协同效应，其效能远高于辅助抗氧剂ＤＬＴＰ，复配该增效剂可减少价格较高抗氧剂的用量，也可用价廉的复配体系替代价格较高的抗氧剂。     

柴油增效剂的应用试验研究

本文介绍了在加与不加 CZ-B 固体型柴油增效剂的条件下,进行等速燃料消耗量、六工况燃料消耗量和加速性能对比试验情况,讨论了在 JH131农用载货汽车上所做测试结果,并探讨了该剂的节能与环保机理。     

(3R*,5S*,6R*)-3,5-dimethyl-6-(methylethyl)-3,4,5,6-tetrahydropyran-2-one,a third sex pheromone component forMacrocentrus grandii (goidanich) (Hymenoptera: Braconidae) and evidence for its utility at eclosion

The compound (3R^*,5S^*,6R^*)-3,5-dimethyl-6-(methylethyl)-3, 4,5,6-tetrahydropyran-2-one was identified as a sex pheromone component ofM. grandii. Laboratory and field bioassays demonstrated that it elicits flight initiation, upwind anemotaxis, and casting in male wasps. The compound acts synergistically with (Z)-4-tridecenal, a previously identified sex pheromone component of femaleM. grandii, to increase male response to the aldehyde component. The source of the lactone was determined to be the mandibular glands of male and female wasps. At eclosion a majority of male-female and female-only cocoon masses released the lactone and attracted male wasps. Male-only cocoon masses were not attractive at eclosion and the lactone component was either not released or released at below-threshold concentration. Mating was observed to occur following eclosion in laboratory and field studies.     

硝化抑制剂研究概况

主要介绍现硝化抑制型氮肥增效技术作用机理、增肥效果。着重讨论双氰胺(DCD),2-氯-6(三氯甲基)吡啶(Nitrapyrin)和3,4-二甲基吡唑磷酸盐(DMPP)三种硝化抑制剂作用机理、应用效果以及应用过程中出现的相关问题等。     

Sex attractant of the alfalfa looperAutographa californica and the celery looperAnagrapha falcifera (Lepidoptera: Noctuidae)

In field tests, traps baited with a combination of (Z)-7-dodecen-1-ol acetate (previously proposed to be the sex pheromone ofA. californica) and (Z)-7-dodecen-1-ol formate caught about 100 times as many males as (Z)-7-dodecen-1-ol acetate did alone. Highest catches of males were obtained with traps baited with 0.5 mg of (Z)-7-dodecen-1-ol acetate and 0.1 mg of (Z)-7-dodecen-1-ol formate impregnated on red rubber sleeve stoppers. The celery looper,Anagrapha falcifera, was also caught in traps baited with a combination of these two chemicals.     

新型阻燃剂的进展

论述了新型阻燃剂的主要种类、阻燃机理及应用，分析了无机阻燃剂的微细化、纳米化的阻燃效果，并提出了新型阻燃剂必将朝着无卤、消烟的复合型阻燃剂方向发展。     

新型纤维的阻燃处理

分析了合成纤维的燃烧过程和阻燃原理,选择了六波环十二烷（HBCD）的卤化物为阻燃剂,三氧化二梯（Sb2O3）为增效剂,对常压可染的共聚醚酯纤维（EDDP-Ⅱ）进行染色、阻燃一治处理;并讨论了阻燃剂和增效剂的反应机理及影响因素。结呆表明：该方法对共聚醚酯织物进行阻燃处理是行之有效的。     

强力切削复合添加剂的研究

本研究以硫、磷、氯极压添加剂为基础。在四球试验机和钻削试验台上,通过正市场调节设计试验找出最佳配比,然后在此基础上,研究了其它化合物对极压添加剂的增效作用,研制成功ＳＣ强力切削复合添加剂,该剂按２０ｗｔ％比例加入到矿油中,可使机油的最大无卡咬负荷提高１００％以上,烧结负荷提高２００％以上,攻丝扭矩下降的４０％。