检索结果-南通市图书馆

Wood Plastic Composites Prepared from Biodegradable Poly（butylene succinate） and Burma Padauk Sawdust （Pterocarpus macrocarpus）： Water Absorption Kinetics and Sunlight Exposure Investigations

引用

Journal of Bionic Engineering 2017年第4期14卷 781-790页

作者： Nawadon Petchwattana Jakkid Sanetuntikul Paranee Sriromreun Borwon Narupai Division of Polymer Materials Technology Faculty of Agricultural Product Innovation and Technology Srinakharinwirot University Ongkharak Nakhon Nayok 26120 Thailand Faculty of Engineering and Technology King Mongkut's University of Technology North Bangkok Bankhai Rayong 21120 Thailand Department of Chemical Engineering Faculty of Engineering Srinakharinwirot University Ongkharak Nakhon Nayok 26120 Thailand Expert Centre of Innovative Materials Thailand Institute of Scientific and Technological Research Pathum Thani 12120 Thailand

Wood plastic biocomposites of biodegradable poly（butylene succinate）（PBS） and Padauk sawdust was successfully pre- pared by using a twin screw extruder and an injection molding machine. The effects of water absorption and sunlight exposure on some properties of the composites were investigated. Water absorption of PBS composites was found to follow the Fick＇s law of diffusion, while the diffusion coefficient increased with increasing wood content. Maximum water absorption of around 4.5% was observed at 30 wt.% sawdust. Optical micrograph indicated the swelling of wood particles by around 1% - 3% after 30 days of water immersion. The tensile and flexural strengths reduced slightly both under the water immersion and sunlight exposure. After 90 days of exposure, the composites clearly looked paler than the non-weathered ones. Thermal scan indicated the re- duction of crystalline region due to the plasticization effect derived from water molecules.

关键词： wood plastic composites biodegradable polymers fickian diffusion mechanical properties environmental deg-radation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Moisture Absorption and diffusion of a Carbon Composite Structure

引用

Sustainable Marine Structures 2019年第2期1卷 12-18页

作者： Bing Wang School of Mechanical Engineering&Automation Fuzhou UniversityFuzhou 350108China

Composite materials are lightweight structures and have been wildly used in marine applications.A carbon composite structure usually absorbs moisture while in-service,which can significantly affect its properties,and detriments the overall *** perform a detailed study on moisture absorption and diffusion of a carbon fibre reinforced vinyl ester resin composite *** samples are immersed directly in four different solutions at a temperature of 37±0.5℃for *** moisture diffusion is analysed through the fickian diffusion model;the diffusion parameters are subsequently determined from the gravimetric *** moisture absorption and interaction with the composite constituents are then *** indicate the fundamentals of the moisture absorption and diffusion within the carbon composite structure.

关键词： Composite Moisture Absorption Degradation fickian diffusion

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Self-diffusion of Fluids Confined in Ordered and Disordered Microporous Carbons

Self-Diffusion of Fluids Confined in Ordered and Disordered ...

引用

第十届全国计算(机)化学学术会议

作者： Joshua D.Moore Jeremy C.Palmer Thomas J.Roussel Keith E.Gubbins Institute for Computational Science & Engineering and Department of Chemical and Biomolecular Engineering North Carolina State UniversityRaleighNC 27695 U.S.A Institut de Ciencia de Materials Consejo Superior de Investigaciones CientificasCampus de la UAB 08193 BellaterraBarcelonaSpain

Microporous carbons have found numerous applications in the areas of chemistry, chemical engineering and materials science due to their potential for use in separation and storage of *** activated carbons are an example of a disordered microporous *** have found widespread use in industry due to their low production cost and high adsorption *** Co.’s bituminous coal-based carbon(BPL) is among the most widely studied and has been used extensively in environmental applications as an adsorbent for the removal of toxic and odorous industrial *** the Hybrid Reverse Monte Carlo method,Palmer et *** recently developed a morphologically realistic model of BPL,that successfully predicts the adsorptive properties of the real material. A second class of materials which has had recent interest are carbon templates of silica materials such as MCM-41,SBA-15 or various *** type of material is inherently highly ordered.A carbon replica of the zeolite Faujasite(C-FAU) has shown potential application in the areas of hydrogen storage and in the development of hydrogen fuel cells. Using a mimetic Grand Canonical Monte Carlo templating process,Roussel et *** modeled C-FAU and compared its structural and adsorptive properties with experiment. Using microcanonical molecular dynamics simulations,we compare the self-diffusion of fluids confined in the model BPL and C-FAU and show that the microporous features of the materials lead to multi-modal diffusion *** also compare to the diffusion of fluids in a carbon nanotube(CNT) bundle,which has distinct bimodal diffusion,with fickian diffusion occurring inside the CNTs and single-file diffusion occurring in *** show that the diffusion of fluids in the ordered(C-FAU) and disordered(BPL) microprous carbons possess both slower(quasi-single-file) and faster(fickian) diffusion modes.

关键词： bituminous coal-based carbon BPL bimodal diffusion carbon replica Faujasite carbon nanotube bundle single-file diffusion fickian diffusion

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

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

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

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：