New Applications and Techniques for Nanotube Superfiber Development

Details

• Personal Author:
  Alvarez N ; Fialkova S ; Hou G ; Johnson A ; Krishnaswamy A ; Li G ; Li W ; Liu Y ; Pixley S ; Ruff B ; Schulz MJ ; Shanov V ; Sullivan J ; Sundaram MM ; Vemaganti K ; Wang A ; Yarmolenko S
• Description:
  The initial enthusiasm for nanotechnology was driven largely by the promise of what these materials could do. It has now been long enough for many to discover what can currently be achieved, to gain some insight into what the problems are, and to predict and chart a trajectory to a realistic target [1-24). Thus, using carbon nanotubes (CNTs) as a model, there is the theory of how strong individual CNTs should be and the practicality of how strong they are as measured by various groups. Information is presented in this chapter, and in this book, in the recurring structure of what is the promise, what is the reality, and where is reality falling short of the promise and why? Thus for CNTs, the promise is of a strength of about 35 GPa and a modulus of about 1 TPa, based on perfect nanotubes and using the cross-sectional area of the nanotube to compute properties. Some researchers report higher strength based on just the area of the nanotube wall. Considering the cross-sectional area of the tube, which is used for engineering design, the properties of nanotubes still significantly exceed the properties of existing materials. The reality for single-wall nanotubes is that issues of defects, measurement, and interpretation still complicate the picture. Multi wall nanotubes properties are sometimes based on considering the outer wall only. Multiwall tubes present the challenge of promoting inner wall utilization. The problems of dispersion, alignment and matrix interaction, which have been a challenge when using the powder form of nanotubes, are mostly solved using continuous materials such as yarn and sheet. Continuous materials provide much greater improvement in properties than powder forms of nanotubes. These practical aspects are reviewed in this chapter and techniques are suggested that may allow superfiber matedals to more closely approach the engineering properties of nanotubes. [Description provided by NIOSH]
• Subjects:
  Engineering Occupational Health Particulate Matter Safety
• Keywords:
  Carbon Nanotubes Electrical Conductivity Electromagnetic Energy Fibers Multi-walled Carbon Nanotubes MWCNT Nanomaterials Nanoparticles Nanotechnology Nanotubes
• ISBN:
  9781455778638
• Publisher:
  Elsevier
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Book
• Place as Subject:
  North Carolina ; Ohio ; OSHA Region 4 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  33-59
• NIOSHTIC Number:
  nn:20050390
• Citation:
  Nanotube supperfiber materials: changing engineering design. Schulz MJ, Shanov VN, Yin Z, eds. Oxford, UK: Elsevier, 2013 Oct; :33-59
• CAS Registry Number:
  Carbon nanotubes (CAS RN 308068-56-6)
• Editor(s):
  Schulz MJ; Shanov VN; Yin Z
• Federal Fiscal Year:
  2014
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Nanotube supperfiber materials: changing engineering design
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a789b0260960ca03c354dc7c529a9675885d371b65145db9d42cd8cebec0bdca0aff4989ee7c98a42e3f0ade6b908e0869842ab694821067cd00b567f1a9ce74
• Download URL:
  https://stacks.cdc.gov/view/cdc/210757/cdc_210757_DS1.pdf
• File Type:
  [PDF - 11.33 MB ]