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快速提高高考英语作文写作讲义.doc

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快速提高高考英语作文写作讲义.doc

上传人:neryka98 2018/4/26 文件大小:9.64 MB

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文档介绍:摘要
近年来使用有机溶剂会损害人体健康,污染大气(光化学污染)、水源和土壤。随着人们环保意识的提高,针对传统农药存在的环境污染问题,农药的开发与生产发生了重大变革,因此,开展生物柴油农药绿色溶剂的研制有利于提高产品的质量,减少对环境的污染,增加商品的附加值,增强产品竞争力。
本文主要研究生物柴油代替苯类有机溶剂作农药的溶剂,研究生物柴油与农药原药及乳化剂等的化学作用规律,采用耦合复配技术,降低原药用量,提高有效成分利用率;考察生物柴油溶剂对农药产品粘度、表面张力、体系稳定性等的影响;开发含有生物柴油绿色溶剂的农药配方,进行产品性能评价。本文主要是针对40%乐果乳油的研究,通过溶解度的测定、溶剂的选择、乳化剂的选择选出合理的配方。通过理化性能试验的评定,生物柴油与二甲苯的相容性较差,与苯的相容性较好,生物柴油可以部分代替苯作40%乐果乳油的溶剂,当生物柴油占溶剂的20%时,乳油的性能较好,符合40%乐果乳油的标准。
关键词:二甲苯苯生物柴油乳油乐果乳化稳定性热贮稳定性
Abstract
In recent years the use anic solvents will damage human health, atmospheric pollution (photochemical pollution), water and soil. As awareness of environmental protection, in view of the existence of the traditional problem of environmental pollution of pesticides, pesticide development and production of major changes have taken place, therefore, to carry out bio-diesel green solvents, pesticides and promoting the development of product quality, reduce environmental pollution, increase in value-added products, and enhance petitiveness of products.
This paper anic solvents instead of benzene solvent for pesticides, bio-diesel research with pesticides and emulsifiers, such as the original drug's chemical law, the use of technology pound to reduce the volume of the original medicinal and improve the utilization rate of active ingredient; study of biological pesticide products for diesel solvent viscosity, surface tension, the system stability and so on; the development of bio-diesel green solvents containing pesticide formulations, evaluation of product performance. This article is mainly directed against EC Dimethoate 40% of the study, through the determination of solubility, solvent choice, the choice of emulsifiers selected a reasonable formula. Through physical and chemical properties of the assessment tests, bio-diesel and xylene patibility, and patibility of benzene, can be part of bio-diesel instead of benzene for 40% of the solvent Rogor EC, when the bio-diesel accounting for solvent 20%, the better the performan