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22041.水性聚丙烯酸酯顿感包覆CL-20
[化学原料和化学制品制造业] [2015-06-10]
以CL-20(六硝基六氮杂异伍兹烷)为主体炸药、水性聚丙烯酸酯为胶粘剂,采用泥浆法制备了CL-20基PBX(聚合物粘接炸药)。通过FE-SEM(冷场发射扫描电镜)、XRD(X射线衍射)法对PBX的性能进行了表征。研究结果表明:泥浆法可使水性聚丙烯酸酯成功包覆在CL-20颗粒表面,包覆前后CL-20的晶型没有变化,包覆后CL-20的撞击感度明显降低,其热安定性更好。
关键词:六硝基六氮杂异伍兹烷;聚合物粘接炸药;水性聚丙烯酸酯;胶粘剂;泥浆法;撞击感度;热安定性
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22042.转盘离心粒化中丝状成粒特性
[化学原料和化学制品制造业] [2015-06-10]
针对转盘离心粒化工艺,以水为工质开展可视化实验。采用高速摄影仪对液膜波动、液丝断裂等粒化过程进行了捕捉,并利用MATLAB自编程序对获得的图像进行了处理。分析了离心粒化过程中液丝形成过程以及液丝断裂形成液滴的过程。研究了运行工况对液丝、液滴形成机制的影响。讨论了液丝形成对液滴形成的影响并获得了Weber数、Reynolds数对粒化效果的影响程度。结果表明,表面不稳定波是形成液丝的主要因素,且液丝在Rayleigh不稳定性的作用下断裂形成液滴。升高转速或者减小流量有利于获得均匀的小液滴。Weber数对液丝、液滴形成具有显著影响;Reynolds数仅对液丝数目有显著影响。
关键词:造粒;多相流;不稳定性;液丝;液滴;粒度分布
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22043.浮型铝银粉的生产工艺技术研究
[化学原料和化学制品制造业] [2015-06-10]
针对国内浮型铝银粉的分散性和贮存稳定性差等缺点,对浮型铝银粉工业生产的关键技术进行了研究,通过对溶剂置换用溶剂和表面处理助剂种类及用量、搅拌时间以及分散处理时间的选择性研究,确定了最佳的生产工艺条件。选择芳烃类溶剂用于溶剂置换,用量与浮铝型银浆质量比为2∶1;选择磷酸酯类助剂为表面处理助剂,用量为滤饼中所含铝的质量的5%;搅拌3 h,分散处理时间为16 h,所制得的浮型铝银粉分散性和贮存稳定性好。
关键词:溶剂置换;表面处理;分散处理;生产工艺
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22044.全球生物农药市场报告(2015-2019年)
[化学原料和化学制品制造业,农、林、牧、渔业] [2015-06-06]
The US EPA defines biopesticides as a type of pesticide or crop protection solution derived from natural materials such as plants, animals, microorganisms, and various minerals. Biopesticides usually made up of microorganisms, naturally occurring substances, and biochemical plant growth regulators to help control pests, weeds, insects, diseases and enhance the productivity of crops. Growing consciousness about the environment and health among manufacturers and consumers is the major contributor to the growth of the global biopesticides market.
关键词:生物农药;作物保护;解决方案;微生物;天然存在;物质;生长调节剂
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22045.亚太报告——石油天然气(2015年5月)
[石油加工、炼焦和核燃料加工业,化学原料和化学制品制造业] [2015-06-01]
The slow economic growth throughout the Asia-Pacific over the past six months led to a fall in the consumption of oil and liquefied natural gas (LNG).
关键词:液化天然气;石油天然气;市场趋势
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22046.中国胶黏剂市场报告(2015-2019年)
[化学原料和化学制品制造业] [2015-06-01]
Adhesives, both synthetic and natural, are used to bond objects by application on the object’s surface.
关键词:中国;粘胶剂;胶黏剂;市场分析
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22047.中国化工导报(2015年5月21日)
[化学原料和化学制品制造业,石油加工、炼焦和核燃料加工业] [2015-06-01]
CPCIF forecasts that the main business revenue in the domestic petroleum and chemical industry would decline 2.5% YoY in H1 and the total profits would tumble 26% YoY. In contrast export value is forecasted to rise 3% YoY in H1.
关键词:丙烯腈;石油化工
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22048.全球农产品酶市场报告(2015-2019年)
[农、林、牧、渔业,化学原料和化学制品制造业] [2015-05-29]
Agricultural enzymes are complex protein molecules derived from sources such as plant or animal tissues and microbes. They accelerate chemical reactions and catalyze biochemical reactions that do not occur naturally. They not only provide nutrition to plants, but also help fight pests and diseases. Based on the type, agricultural enzymes are segmented into carbohydrases, proteases, lipases, and others. They are classed as fertility products, growth-enhancing products, control products, and others.
关键词:农业酶;复合蛋白分子;植物或动物来源;对抗;病虫害;疾病。
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22049.全球生物表面活性剂市场报告(2015-2019年)
[科学研究和技术服务业,化学原料和化学制品制造业] [2015-05-27]
Surfactants are compounds that reduce the surface pressure between two liquids or between a liquid and a solid. They are amphiphilic in nature, so they are used as emulsifying agents, detergents, and dispersants. Surfactants integrated with living cells or micro-organisms such as bacteria, fungi, and yeast are called bio-surfactants. Bio-surfactants are manufactured using oleochemical raw materials such as vegetable oils, animal fats, sucrose, and glucose. Biosurfactants have emerged as the most versatile type of bio-process chemical and are widely used in industries such as cosmetics, personal care, bioremediation, pharmaceuticals, agriculture, and food processing.
关键词:表面活性剂;化合物;乳化剂;清洁剂;分散剂;生物化学过程
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22050.全球生物醇市场报告(2015-2019年)
[化学原料和化学制品制造业,科学研究和技术服务业] [2015-05-27]
Bio-alcohols are environmentally-friendly organic compounds produced through the fermentation of sugar or cellulose. The global bio-alcohols market was valued at $20.784 billion in 2014. Technavio expects the market to experience steady growth, posting a CAGR of 9% during the forecast period. In 2014, Europe led the market with a share of 54%, followed by North America and APAC with shares of 23% and 18%, respectively.
关键词:生物醇;环保;有机化合物;纤维素发酵