检索结果-南通市图书馆

Variation of surface adhesion force During the Formation of OTS Self-assembled Monolayer Investigated by AFM

Chinese Journal of Chemical Engineering 1999年第4期7卷 345-350页

作者：徐国华 HigashitaniKo DepartmentofChemicalEnginesring ZhejiangUniversityHangzhou310027China DepartmantofChemicalEnineering KyotoUniversityKyoto606-01Japan

Variation of the surface adhesion force during the formation of octadecyl trichlorosilane (OTS) self-assembled monolayer on a glass substrate surface was investigated by atomic force microscope (AFM). The research shows that the hydrophobicity and the adhesion force of the sample surface increases gradually while the substrate surface is covered by OTS molecules as the reaction proceeds. After 15min reaction, a close-packed and smooth OTS self-assembled monolayer could form on the glass substrate surface with an advancing contact angle of 105° and an interfacial energy of 55.79mJ·m-2.

关键词： surface adhesion force atomic force microscope octadecyl trichlorosilane selfassembled monolayer

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Discrete element method for adhesion properties evaluation of deep-sea sediment from macro and micro perspectives

引用

Journal of Central South University 2022年第5期29卷 1701-1716页

作者： LI Jia-ping RAO Qiu-hua HUANG Tian-bao MA Wen-bo College of Civil Engineering and Mechanics Xiangtan UniversityXiangtan 411105China Engineering Research Center of Rock-Soil Drilling&Excavation and Protection Ministry of EducationWuhan 430074China School of Civil Engineering Central South UniversityChangsha 410012China

The adhesion between the mining machine and the deep-sea sediments will significantly affect the driving performance of the mining machine in the deep-sea *** the mining machine and the deep-sea sediment interaction simulation was carried out,the accuracy of the particle interaction parameters will directly affect the simulation *** study proposed a method to systematically calibrate the interaction parameters between deep-sea sediment and grouser through the combination of experiment and *** uniaxial compression test and macro adhesion test and corresponding discrete element numerical simulation were carried out,modifying the contact parameters until the simulation results are close to the experimental *** the micro-parameters of the JKR adhesion contact model were back calibrated with the test results,and the contact parameters between soil particle-soil particle and soil particle-metal are ***,the adhesion test shows that the adhesion forces were ranked in the order of 5052surface roughness,which indicates the aluminum alloy 5052 has the best anti-adhesion *** relationship between surface adhesion force and microscopic contact parameters was studied by discrete element numerical simulation,and the result shows that the coefficient of static friction and the coefficient of rolling friction has little effect on adhesion *** it is mainly affected by the coefficient of restitution and surface energy,the surface adhesion force tends to decrease with the increase of the coefficient of restitution and increase with the growth of surface *** obtained parameters of soil particle to soil particle and soil particle to metal affecting the adhesion can contribute to the design optimization for the grouser of mining machines to decrease surface adhesion and enhance its movability and mining efficiency.

关键词： discrete element modelling deep-sea sediment JKR adhesion contact model contact parameters surface adhesion force

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：