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1.
试验研究了促进剂(TBSI)在全钢巨型载重子午线工程胎胎面胶中应用效果,并分别和次磺酞胺同类促进剂TBBS、DCBS、CBS、MBS在胎面中进行等量的比较。结果表明:在胎面胶中促进剂TBSI的硫化速度比促进剂TBBS、CBS、MBS慢,但比促进剂DCBS快,具有延迟焦烧以及降低硫化速率的特性。等量的TBSI代替TBBS、DCBS、CBS和MBS在胎面胶其过硫化和老化后的物理性能、生热、磨耗都最好。  相似文献   

2.
李辉  李梁  高杨 《橡胶工业》2023,70(1):0036-0040
促进剂TBSI属于伯胺类促进剂,硫化反应时不产生易致癌的亚硝胺。研究环保型促进剂TBSI在胶料中的应用性能和环保性能。结果表明:与促进剂DCBS,TBBS和CBS相比,环保型促进剂TBSI的储存稳定性更好,其胶料的硫化反应活化能更大,焦烧时间更长,加工安全性和抗硫化返原性较好,其更加适用于厚制品,可以替代促进剂TBBS/防焦剂CTP单独使用;促进剂TBSI及其胶料的叔丁胺和挥发性有机化合物的质量分数较小,环保性能更好。  相似文献   

3.
研究环保型促进剂CBBS和TBSI在全钢载重子午线轮胎粘合胶中的应用。结果表明,在粘合胶中以促进剂CBBS和TBSI等量替代促进剂NOBS和DCBS,胶料的加工安全性提高,抗硫化返原性改善,硫化胶的物理性能和粘合性能较好,过硫化及老化后硫化胶的拉伸强度保持率均较高,综合性能优异。  相似文献   

4.
研究了环保型促进剂CBBS和TBSI替代NOBS、DCBS在全钢子午线轮胎粘合胶料配方中的应用,结果表明,在粘合胶料配方中使用CBBS和TBSI,胶料的物理性能及粘合性能均得到改善,同时还提高了胶料的加工安全性,过硫化胶及老化后的物理性能保持率均较高,综合性能优异。  相似文献   

5.
实验研究了促进剂TBSI在半钢子午线轮胎胎体中的应用效果,并分别与同类促进剂TBBS、DCBS和DIBS进行等量对比。结果表明:促进剂TBSI具有延迟焦烧以及降低硫化速率的特性。在胎体胶中等量的TBSI代替TBBS、DCBS和DIBS,可提高胶料的抗硫化返原性,具有更好的焦烧安全性和硫化平坦性,胶料的动态性能好,生热低,粘合性能优异,其过硫化及老化后的物理性能保持率较高;是一种优良的促进剂品种。  相似文献   

6.
吴浩 《合成橡胶工业》2002,25(4):239-241
研究了新型硫化促进剂TBSI在丁苯橡胶中的硫化特性,贮存稳定性及其硫化胶的物理机械性能。结果表明其硫化速率与TBBS相近,而焦烧性优于TBBS,CZ和TMTD。在150℃下过硫化4h后,以TBSI为促进剂的硫化胶300%定伸应力保持率在70%以上,而TBBS的不足60%。在100℃的热空气中放置4h,其焦烧时间为21min,而TBBS和CZ分别为11min和8min。  相似文献   

7.
苟登峰  魏红  吕强 《轮胎工业》2013,33(8):478-480
研究促进剂CBBS在载重斜交轮胎胎面胶中的应用。结果表明:在载重斜交轮胎胎面胶中以促进剂CBBS部分替代促进剂NS,胶料的硫化速度减慢,抗焦烧性能明显改善;硫化胶的生热略有降低,其他物理性能基本相当;成品轮胎的耐久和速度性能均达到国家标准要求,可改善生产过程中的环境问题。  相似文献   

8.
李利  罗高翔  霍石磊  万呈呈 《橡胶工业》2021,68(2):0104-0108
研究促进剂NOBS,CBS,DZ,TBBS和辅助促进剂HMT对橡胶-钢丝粘合和胶料性能的影响。结果表明:促进剂NOBS不适于橡胶-钢丝粘合体系;促进剂CBS和DZ可适量(0.5~1份)用于橡胶-钢丝粘合体系;添加促进剂TBBS的橡胶-钢丝粘合性能和胶料综合性能较好;促进剂TBBS搭配辅助促进剂HMT使用,橡胶-钢丝粘合性能以及胶料焦烧安全性和硫化效率提高,硫化胶物理性能呈下降趋势,辅助促进剂HMT的用量需严格控制。  相似文献   

9.
吕咏梅 《上海化工》2001,26(6):23-24
全成了橡胶促进剂TBSI的几种合成路线,促进剂TBSI不产生毒性物质亚硝胺,是一种很有前途的产品,有替代目前常用促进剂TBBS、NOBS、DIBS、DZ、CZ等的趋势。  相似文献   

10.
在顶空瓶中以热空气老化的方式模拟轮胎硫化条件,采用气相色谱/质谱法分析4种常用促进剂(MBT,CBS,TBBS和DPG)及其混炼胶硫化烟气中的含氮组分。在检测到的26种含氮物质中,确定了15种成分的化合物结构。结果表明:4种促进剂及其混炼胶硫化烟气中的含氮组分种类从少到多依次为DPG,MBT,CBS,TBBS;促进剂DPG及其混炼胶硫化烟气中的苯胺含量较大,应尽量避免使用促进剂DPG;促进剂MBT混炼胶硫化烟气中的含氮组分种类少,毒性较低,是环保型促进剂。  相似文献   

11.
炼油厂恶臭污染及其控制技术   总被引:8,自引:1,他引:7  
刘忠生  方向晨  戴文军 《当代化工》2005,34(4):217-220,224
介绍了炼油厂恶臭污染物排放标准、分析方法,介绍了设备和管阀件、储罐、污水集输和处理系统、停工检修、突发性事故、氧化沥青焚烧炉、硫磺回收焚烧炉、火炬等的恶臭污染成因及污染物性质,介绍了炼油厂恶臭的控制和治理方法。  相似文献   

12.
Odor mimetism?     
The hypothesis of chemical mimesis in the relationship betweenOphrys orchids and their pollinators was tested experimentally using preparations ofOphrys lutea var.lutea odor and the males of the solitary beeAndrena fuscipes, a species constellation that does not coexist under natural conditions. Correspondence in odor production was shown to occur. Identification of the compounds in the cephalic secretion ofA. fuscipes, males and females, and the flower labella extracts, was performed by gas chromatography and mass spectrometry. Geraniol, nerol, citral,E,E-farnesol and 6-methyl-5-hepten-2-one were present in the extracts of both the orchid and one or both sexes of the bee. Extracts, TLC fractions of extracts, blends, and separate compounds were tested in the field in the mating flight areas ofA. fuscipes males. Extracts and blends containingE,E-farnesol, geraniol, and geranial showed the highest attractivity to the male bees. These compounds seem to be responsible for the release of the odor-guided mating behavior at theO. lutea labellum and can be regarded as general attractants for many species ofAndrena.  相似文献   

13.
In contrast to previous hypotheses that there are a few primary odors, recent results show the existence of an extremely large number of receptors each capable of recognizing a small number of odorants. Although in principle enantiomers have different odors, in many cases the size of the difference is small or even zero. Minor structural change often has a major effect on the odor perceived. Detailed results of structure-odor relationship have been obtained with several classes of odorants. Most investigated are the classes of fatty aldehydes, degraded carotenoids, sandalwood odorants, ambergris and musk compounds. Various rules and correlations have been established. Despite numerous excellent studies during the last 30 years the area of structure-odor relationship remains rather confusing.  相似文献   

14.
The behavior of captive male muskoxen was observed closely during their characteristic superiority display, the anatomy of the preputial region was studied in two adults and three calves, and preputial washings and preorbital gland secretion were subjected to gas chromatography and mass spectroscopy. During the superiority display, the prepuce was everted to form a pendulous tube tipped with a fringe of matted hair. Owing to the movement of the animal, the urine that dribbled from the preputial opening was liberally applied to the long guard hairs of the belly. The superiority display was almost exclusively confined to dominant males and apparently accounted for their odor. In the quiescent state, the hair seen around the preputial opening was drawn inside and formed an 8 cm-wide band on the lining of the prepuce. The preputial washings contained large amounts of benzoic acid andp-cresol. The infraorbital gland secretion contained cholesterol, benzaldehyde, and a homologous series of saturated -lactones ranging from 8 to 12 carbons. The latter compounds and the natural secretion smell similar to the human nose.  相似文献   

15.
香气的分维   总被引:1,自引:1,他引:0  
本文用分形数学理论解释调香行为,计算了香精主题香气奇怪吸引子的分维,总结出“分维越接近1,香精的主题香气就越突出”的结论。通过一系列的计算确认配制香精时用较多种相关香料的有利之处。文中也讨论了香料中“杂气”对主题香气的影响。  相似文献   

16.
目的:寻找绿色环保的薄荷气味净化方法,降低薄荷气体浓度,回收薄荷油。方法:采用水吸收法、水-有机溶剂吸收法、水-有机溶剂-助剂配方吸收法、水-专用助剂配方吸收法和水-树脂吸收法,并比较各方法的优缺点。结果:水吸收方法吸收能力有限;水-有机溶剂吸收法存在溶剂污染;水-有机溶剂-助剂配方吸收法及水-专用助剂配方吸收法流动性差且起泡沫;水-树脂吸收法吸收能力强,无污染,可重复利用。结论:水-树脂吸收法吸收效率高,操作方便,回收处理简单,是绿色环保的薄荷气味净化方法。  相似文献   

17.
Benzaldehyde, phenylacetaldehyde (major component), 2-phenylpropenal,n-heptanal, 6-methylhept-5-en-2-one, and linalool were identified as compounds responsible for the male scent ofAtrophaneura alcinous alcinous. These substances were present predominantly in the wings, and the quantity of them was largest at the inner margin of the hind wing. Female wings also contained some of them in much smaller (except a few components) amounts. The relative proportion of each component exhibited manifests sexual differences.  相似文献   

18.
简要介绍了软泡用聚醚多元醇的生产工艺,分析了软泡聚醚多元醇在生产工艺过程中产生气味的原因,并提出了具体的解决方法。  相似文献   

19.
气味与嗅觉在环境设计中的地位   总被引:1,自引:0,他引:1  
本文涉及环境设计中的嗅觉因素。将人机工程学与芳香治疗学联系起来 ,弥补了人机工程学相关文献中的空白和不足。文章回顾了前人关于气味物质进对人体影响的研究 ,对人机工程学与环境设计工作者和香料工业的专业人士有一定的启发和参考作用  相似文献   

20.
The problems with odor around a typical edible oil deodorizer are discussed in detail, and a three-step solution to eliminate these problems is presented. The three steps are a distillate recovery system which recovers most of the fatty acid in the deodorizer vapor discharge as a valuable byproduct, a closed loop barometric cooling water system which keeps the fatladen hotwell water out of the cooling tower by recirculating it back to the vacuum system after cooling with tower water in a heat exchanger, and a vapor scrubbing system to eliminate volatile organic compounds which are not removed in the previous two steps.  相似文献   

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