检索结果-南通市图书馆

PVDC Has Broad Market Prospects

在线全文

学校读者我要写书评

暂无评论

China Chemical Reporter 2007年第9期18卷 21-21页

作者： Liu Lingmei

Polyvinyhdene chloride resin (PVDC) isa copolymer with vinylidene chloridemonomer as major component,broadlyapplied in fields such as food *** PVDC productscan help to balance the excess chlorinemade in the chlor-alkali industry,andhelp manufacturers improve perfor-mance and competitive *** products include emulsion andresin *** emulsion can be di-rectly coated on the surface of *** PVDC emulsion iswater soluble,it is easy to use,safe *** it is broadly appliedin packaging by the tobacco,food andmedicine industries.

关键词： PVDC packaging emulsion copolymer competitive thou

Luckyfilm Purchases AEC Production Line

在线全文

学校读者我要写书评

暂无评论

China Chemical Reporter 2008年第Z1期19卷 22-22页

Luckyfilm Co.,Ltd.(600135)plans to purchase an AEC(advanced emulsion cooperation)production line from its con-trolling shareholder Lucky Film Group at a price of RMB28.5203

关键词： cooperation purchase emulsion Kodak

在线全文

学校读者我要写书评

暂无评论

PANCREAS

China Medical Abstracts(Internal Medicine) 1999年第2期16卷 112-113页

Silica Microcapsules Prepared by Interfacial Reaction Methods

在线全文

学校读者我要写书评

暂无评论

复旦学报（自然科学版） 2007年第5期46卷 704-页

作者： M Fujiwara K Shiokawa Y Nakahara National Institute of Advanced Industrial Science and Technology (Kansai Center) Nanotechnology Research Institute

1 Results Silica spherical particles with hollow structure are directly prepared by interfacial reaction methods using W/O/W emulsion (schematic diagram in Fig.1)[1].Fig.1 Silica microcapsule formationThe mixing of W/O emulsion consisting of sodium silicate solution (inner water phase) and n-hexane solution (oil phase) to outer water phase dissolving NH4HCO3 or other salts affords silica *** critical feature of this method is the direct formation of hollow ***,the core com...

关键词： silica microcapsule hollow sphere emulsion bioencapsulation diatom

Bacterial Consortium in the Biodegradation of Polycyclic Aromatic Hydrocarbons-Phenanthrene

在线全文

学校读者我要写书评

暂无评论

Bacterial Consortium in the Biodegradation of Polycyclic Aro...

作者： John Farmer 东北师范大学

学位级别：硕士

Many aromatic hydrocarbons are known to be toxic and carcinogenic to humans and their contamination of soils and water bodies is of great environmental concern. Hence microbial degradation of these hydrocarbons to less toxic compounds has become a vital tool in making the environment safe for humans as well as other life forms.In this study, industrial waste water samples were randomly collected from three different locations in Shuangyang local brewery. These samples were designated by the letters: HY, YY and WS. The waste water samples were used to isolate bacterium species using LB liquid medium. These bacterium cultures were transferred to a fresh media containing a concentration of Phenanthrene. The pH and Optical Density (OD) readings were measured and recorded on daily basis for a period of one week and this was the first transfer. This was done in other to ascertain the biodegradation capability of the bacterium strains in the Phenanthrene medium and the pH at which these strains degrade the pollutant- Phenanthrene. However, this process was repeated for another four consecutive weeks (five transfers). Meanwhile, from the fifth transfer the aliquot culture MSM-PHE medium was again transferred to a fresh liquid LB media and allowed to grow overnight. The bacterial cultures were again transferred to a solid MSM agar medium to obtain single colonies of bacterial strains. These cultures were transferred to a liquid MSM medium for 24 hrs and transferred again to the solid medium. This process was repeated for another three weeks to isolate pure clones. Pure clones were isolated with distinct colors and morphologies. The genetic DNA of these pure colonies was extracted, purified and two primers were used for the PCR analysis and the isolates were identified by blast analysis. These single isolates were later inoculated in a liquid MSM-PHE culture medium and their densities (biomass) were measured and recorded for a week. The isolates were also inoculated on

关键词： biodegradation Phenanthrene waste water pH Optical Density (OD) pure clones Genetic DNA biosurfactant emulsion clear zones

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

液膜分离技术中的电破乳研究

膜科学与技术 1985年第2期 58-66页

作者：张兴海张妫刘瑜陶遵玉张月贞舒仁顺童步清上海环境保护科学研究所

前言液膜分离技术是一项崭新的分离工艺技术,可应用于工业废水处理。为了实现液膜分离工艺达到连续化的要求,必须使制乳、液膜萃取和破乳三个环节能相互协调进行。经多次连续运转的破乳试验,三大环节中破乳环节显得甚为重要。目前研究... 详细信息

前言液膜分离技术是一项崭新的分离工艺技术,可应用于工业废水处理。为了实现液膜分离工艺达到连续化的要求,必须使制乳、液膜萃取和破乳三个环节能相互协调进行。经多次连续运转的破乳试验,三大环节中破乳环节显得甚为重要。目前研究较多是高电压破乳,为了使液膜技术在工厂中推广应用,本文主要叙述了电破乳的基本原理,以及应用

关键词：液膜分离技术破乳分离工艺工业废水处理制乳沉降速度聚结电极片 emulsion breakdown

乳液静电纺纤维素晶体增强聚乳酸纳米纤维(英文)

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

乳液静电纺纤维素晶体增强聚乳酸纳米纤维(英文)

聚乙烯醇空心微球的制备及其对尿素的缓释作用(英文)

第七届中国功能材料及其应用学术会议

作者：万玉芹高卫东李英杰 Frank Ko 江南大学纺织服装学院英属哥伦比亚大学高性能纤维材料实验室

作为一种高性能绿色可降解材料,纤维素晶体在增强复合材料领域具有极高的应用价值。但是,由于其高表面活性和极性特征,纤维素晶体一般以水溶液分散态存在。一旦干燥,这些晶体将发生团聚,几乎无法再次分散。因此,关于纤维素晶体产品的研... 详细信息

作为一种高性能绿色可降解材料,纤维素晶体在增强复合材料领域具有极高的应用价值。但是,由于其高表面活性和极性特征,纤维素晶体一般以水溶液分散态存在。一旦干燥,这些晶体将发生团聚,几乎无法再次分散。因此,关于纤维素晶体产品的研究、发展和应用一直难以广泛开展。本文创造性地采用乳化分散方式,成功地将纤维素晶体分散在聚乳酸的氯仿溶液内,获得了高含量的纤维素晶体极性溶液。并成功利用该溶液进行了静电纺丝实验。扫描电镜观察结果表明,纤维素晶体的添加有效地将静电纺聚乳酸纤维的直径由570～1200nm降为平均212nm。透射电镜实验结果证实了纤维素晶体以核-壳结构形式均匀分布在聚乳酸纳米纤维中。X射线衍射实验结果表明,纯电纺聚乳酸纤维为无定形结构,不存在结晶区;而添加了纤维素晶体的聚乳酸纤维则具有了12.3%的结晶结构。本文所采用的纤维素晶体乳化分散方法可以实现纤维素晶体在各种极性、非极性溶液中的再分散,为纤维素晶体产品的开发和应用打开了一条新途径。

关键词： nanocrystalline nanofiber emulsion electrospinninr

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Agricultural Science & Technology 2008年第5期9卷 8-12,18页

作者：邵兵邱舒张文莉倪良邵怿王超江苏大学化学化工学院江苏镇江212013

[Objective] The aim of this study was to discuss the optimizing preparation conditions of polyvinyl alcohol(PVA)hollow microsphere and its application in the production of slow-release urea fertilizer.[Method]PVA hollow microsphere was prepared by the emulsion chemical cross-linking method,while its composition,morphology and particle size was analyzed by technologies of FT-IR,SEM and TEM ***,factors such as rate of emulsified speed,crosslink temperature and linking agent amount with effects on morphology and particle size of hollow microsphere were also discussed in this ***,based on the optimizing preparation conditions,PVA fertilizer carrier microsphere was prepared by coating urea to investigate its sustained release effect on urea.[Result]The optimizing preparation conditions of polyvinyl alcohol(PVA)hollow microsphere were as follows:rate of emulsified speed 6 000 r/min,crosslink temperature 35 ℃ and linking agent amount 25 *** fertilizer carrier microsphere had significant sustained release effect on urea,and the optimal cross-linking time was 3 hours.[Conclusion]This study provides theoretical basis for the development of new slow-release fertilizer.

关键词： Polyvinyl alcohol Hollow microsphere emulsion chemical cross-linking Urea Sustained release effect

在线全文

学校读者我要写书评

暂无评论

补水全时空

半岛新生活 2008年第13期 80-81页

作者：纪昀含深粉象李玮

水是维持生命的能源,更是肌肤美丽的关键,水润的肌肤才漂亮。炎夏来临,强烈的紫外线、温度落差的刺激、不健康的空调环境都会带走肌肤中的大量水分,我们要美得健康、露得漂亮,就一定要做好完全的补水功课!

关键词：空调环境保湿因子碧欧泉玻尿酸精华液月见草油脂质含量油包水酪梨 emulsion