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Imagine nano 2013-1

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AIN TECH
AIN TECH

This document discusses the development of electrically conductive fibers through various techniques. It focuses on developing polypropylene fibers coated with multi-walled carbon nanotubes to impart electrical conductivity for applications such as heated clothing. The document outlines the production process used to develop conductive polypropylene-carbon nanotube composite fibers and tapes. It also discusses characterizing the materials and improving their mechanical and electrical properties. The goal is to create flexible, lightweight and durable conductive materials for heating applications.

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_tech DC-Reactive Magnetron Sputtering Electrically conductive polypropylene fibers aintech@ain.es _tech | _consulting | _legal 1/21
_tech DC-Reactive Magnetron Sputtering He2Sock Electrically conductive polypropylenene fibers ImagineNano 2013 Bilbao April 23rd 2013 _tech | _consulting | _legal 2/21
_tech Cold weather warfare DC-Reactive Magnetron Sputtering ImagineNano 2013 Bilbao April 23rd 2013 _tech | _consulting | _legal 3/21
_tech DC-ReactiveCurrent cold weather warfare Magnetron Sputtering Operating in multiple cold weather climates such as in Afghanistan In the last 70 years Evolution in ergonomics and materials _tech | _consulting | _legal 4/21
Thermal protection DC-Reactive Magnetron Sputtering _tech Passive thermal management (up to -40 °C) ECWCS: (up to -51 °C) (Generation III ExtendedCold WeatherClothing) Multi-layering systems PCU: US Special forces (up to -43 °C) (Protective Combact Uniform) MCPS: Aviator and aircrew protection (Multi-Climate protection System) Active thermal management (below -40 °C) Electrical Resistive Heating (C Thwaites, W. L. Gore et al, Cold weather clothing, Military textiles 2008, page 178) _tech | _consulting | _legal 5/21
_tech DC-Reactive Magnetron Sputtering ECWCS: (up to -51 °C) (Generation III ExtendedCold WeatherClothing) http://www.drum.army.mil/mountaineer/Article.aspx?ID=2008 http://www.nationalguard.mil/news/archives/2006/12/121406-weather_gear.aspx _tech | _consulting | _legal 6/21
_tech DC-Reactive Magnetron Sputtering When the body starts to feel cold, the blood flow of the extremeties is reduced to keep te core temperature (vital organs) protected. _tech | _consulting | _legal 7/21
_tech _tech | _consulting | _legal DC-Reactive Magnetron Sputtering 8/21
_tech DC-Reactive Magnetron Sputtering Electrical Resistive Heating: Footwear, gloves and headgear -Investigated since WW2, especially for aircrew (Siple 1949). Research has continued since them (House et al 2003) WW2 RAF heated inner boots and gloves Department of Defense of India - There is no insulated glove that keep hands warm when sitting at – 40 ºC for more than about 2 hours. Heating is the only solution to achieve longer duration. (Eugene Wilusz, Military textiles 2008) -Control and thermoregulation must be well managed. Overheating the feet can upset the thermoregulation of the whole body. (Burton 1963) _tech | _consulting | _legal 9/21
_tech DC-Reactive Magnetron Sputtering http://www.hammacher.com/publish/71850.asp?promo=apparel http://www.diytrade.com/china/pd/2805033/Heated_Sock.html http://healiohealth.com/products/index/2621 New flexible, light weight and high conductive materials needed _tech | _consulting | _legal 10/21
_tech DC-Reactive Magnetron Sputtering He2Sock Leadera: Development of new heating, healing textiles MATERIALS _tech | _consulting | _legal 11/21
_tech DC-Reactive Magnetron Sputtering Development of electrically conductive fibers Metallic fibers: Expensive, more brittle and heavier than most textile fibers, making it difficult to produce homogenous blends and also they can suffer galvanic corrosion. Non-metallic conductive coatings: Can suffer from delamination which clearly affects the electrical conductivity. Intrinsically conductive fibers have a major advantage compare with the conductive fibers based on coated yarns because the former can not suffer from delamination, _tech | _consulting | _legal 12/21
_tech DC-Reactive Magnetron Sputtering MATERIALS _tech | _consulting | _legal 13/21
_tech DC-Reactive Magnetron Sputtering Development of electrically conductive polypropylene MWCNT fibers and tapes: PP, and TPU composites based with electrical conductivities of up to: - 50 S/m (8% wt MWCNT) - 2000 S/m (40% wt MWCNT) - Percolation and thresholds at 0.5% wt. Extensive characterization: SEM, XRD, MFI, DSC, etc _tech | _consulting | _legal 14/21
_tech DC-Reactive Magnetron Sputtering New compounding method assisted by ultrasonication: Combining our know how in nanodipersions with spray dryer techniques can reduce the process cost to 0.04 €/g Already scaled up to Kg/batch _tech | _consulting | _legal 15/21
DC-Reactive Magnetron Sputtering _tech Composite process Pristine CNT Solid Nanocomposite (powder) 4 times streched Fiber Spinning 6 times streched _tech | _consulting | _legal 16/21
_tech DC-Reactive Magnetron Sputtering CNT-PP composites tapes (6 times streched) 1 1 0 (α) 0 4 0 (α) 1 3 0 (α) 1 1 1 (α) 0 6 0 (α ) 20 30 40 2 2 0 (α ) 50 2 Φ CNT allignement by SEM. Polymer chains alignment by XRD. Mechanical test for fiber reinforcement are ongoing. Improved composite fibers compatible with other materials such as UHMWPE _tech | _consulting | _legal 17/21
Table 1 DC-Reactive Magnetron Sputtering _tech The lack of a 3D interconnected conductive network can also explain the decrease in the electrical conductivity of these composites in tapes 6 times stretched compared to the 4 times stretched tapes or disks. MWCNT (% wt ) Conductivity (S/m) (disk) 5 8 20 70 Conductivity Conductivity (S/m) (S/m) (tape x4 (tape x6 streched) streched) 10 50 - 4 times stretched is enough for fiber spinning _tech | _consulting | _legal 18/21
_tech DC-Reactive Magnetron Sputtering New materials will represent: Flexible Lightweight Non corrosion _tech | _consulting | _legal 19/21
DC-Reactive Magnetron Sputtering _tech Future developments of our materials. Other matrices are envisaged: High conductive thermoplastic fibers Thermoplastic conducting materials Improved mechanical properties IR absorbant material Alternative to Ghost® from Texplorer (metalized material) _tech | _consulting | _legal 20/21
DC-Reactive Magnetron Sputtering _tech MATERIALS Asociación de la Industria Navarra Navarra (Spain) Thank you for your attention Francisco Martín, PhD R&D Department fmartin@ain.es, fmartinjulian@gmail.com _tech | _consulting | _legal 21/21

More Related Content

Imagine nano 2013-1

  • 1. _tech DC-Reactive Magnetron Sputtering Electrically conductive polypropylene fibers aintech@ain.es _tech | _consulting | _legal 1/21
  • 2. _tech DC-Reactive Magnetron Sputtering He2Sock Electrically conductive polypropylenene fibers ImagineNano 2013 Bilbao April 23rd 2013 _tech | _consulting | _legal 2/21
  • 3. _tech Cold weather warfare DC-Reactive Magnetron Sputtering ImagineNano 2013 Bilbao April 23rd 2013 _tech | _consulting | _legal 3/21
  • 4. _tech DC-ReactiveCurrent cold weather warfare Magnetron Sputtering Operating in multiple cold weather climates such as in Afghanistan In the last 70 years Evolution in ergonomics and materials _tech | _consulting | _legal 4/21
  • 5. Thermal protection DC-Reactive Magnetron Sputtering _tech Passive thermal management (up to -40 °C) ECWCS: (up to -51 °C) (Generation III ExtendedCold WeatherClothing) Multi-layering systems PCU: US Special forces (up to -43 °C) (Protective Combact Uniform) MCPS: Aviator and aircrew protection (Multi-Climate protection System) Active thermal management (below -40 °C) Electrical Resistive Heating (C Thwaites, W. L. Gore et al, Cold weather clothing, Military textiles 2008, page 178) _tech | _consulting | _legal 5/21
  • 6. _tech DC-Reactive Magnetron Sputtering ECWCS: (up to -51 °C) (Generation III ExtendedCold WeatherClothing) http://www.drum.army.mil/mountaineer/Article.aspx?ID=2008 http://www.nationalguard.mil/news/archives/2006/12/121406-weather_gear.aspx _tech | _consulting | _legal 6/21
  • 7. _tech DC-Reactive Magnetron Sputtering When the body starts to feel cold, the blood flow of the extremeties is reduced to keep te core temperature (vital organs) protected. _tech | _consulting | _legal 7/21
  • 8. _tech _tech | _consulting | _legal DC-Reactive Magnetron Sputtering 8/21
  • 9. _tech DC-Reactive Magnetron Sputtering Electrical Resistive Heating: Footwear, gloves and headgear -Investigated since WW2, especially for aircrew (Siple 1949). Research has continued since them (House et al 2003) WW2 RAF heated inner boots and gloves Department of Defense of India - There is no insulated glove that keep hands warm when sitting at – 40 ºC for more than about 2 hours. Heating is the only solution to achieve longer duration. (Eugene Wilusz, Military textiles 2008) -Control and thermoregulation must be well managed. Overheating the feet can upset the thermoregulation of the whole body. (Burton 1963) _tech | _consulting | _legal 9/21
  • 11. _tech DC-Reactive Magnetron Sputtering He2Sock Leadera: Development of new heating, healing textiles MATERIALS _tech | _consulting | _legal 11/21
  • 12. _tech DC-Reactive Magnetron Sputtering Development of electrically conductive fibers Metallic fibers: Expensive, more brittle and heavier than most textile fibers, making it difficult to produce homogenous blends and also they can suffer galvanic corrosion. Non-metallic conductive coatings: Can suffer from delamination which clearly affects the electrical conductivity. Intrinsically conductive fibers have a major advantage compare with the conductive fibers based on coated yarns because the former can not suffer from delamination, _tech | _consulting | _legal 12/21
  • 14. _tech DC-Reactive Magnetron Sputtering Development of electrically conductive polypropylene MWCNT fibers and tapes: PP, and TPU composites based with electrical conductivities of up to: - 50 S/m (8% wt MWCNT) - 2000 S/m (40% wt MWCNT) - Percolation and thresholds at 0.5% wt. Extensive characterization: SEM, XRD, MFI, DSC, etc _tech | _consulting | _legal 14/21
  • 15. _tech DC-Reactive Magnetron Sputtering New compounding method assisted by ultrasonication: Combining our know how in nanodipersions with spray dryer techniques can reduce the process cost to 0.04 €/g Already scaled up to Kg/batch _tech | _consulting | _legal 15/21
  • 16. DC-Reactive Magnetron Sputtering _tech Composite process Pristine CNT Solid Nanocomposite (powder) 4 times streched Fiber Spinning 6 times streched _tech | _consulting | _legal 16/21
  • 17. _tech DC-Reactive Magnetron Sputtering CNT-PP composites tapes (6 times streched) 1 1 0 (α) 0 4 0 (α) 1 3 0 (α) 1 1 1 (α) 0 6 0 (α ) 20 30 40 2 2 0 (α ) 50 2 Φ CNT allignement by SEM. Polymer chains alignment by XRD. Mechanical test for fiber reinforcement are ongoing. Improved composite fibers compatible with other materials such as UHMWPE _tech | _consulting | _legal 17/21
  • 18. Table 1 DC-Reactive Magnetron Sputtering _tech The lack of a 3D interconnected conductive network can also explain the decrease in the electrical conductivity of these composites in tapes 6 times stretched compared to the 4 times stretched tapes or disks. MWCNT (% wt ) Conductivity (S/m) (disk) 5 8 20 70 Conductivity Conductivity (S/m) (S/m) (tape x4 (tape x6 streched) streched) 10 50 - 4 times stretched is enough for fiber spinning _tech | _consulting | _legal 18/21
  • 19. _tech DC-Reactive Magnetron Sputtering New materials will represent: Flexible Lightweight Non corrosion _tech | _consulting | _legal 19/21
  • 20. DC-Reactive Magnetron Sputtering _tech Future developments of our materials. Other matrices are envisaged: High conductive thermoplastic fibers Thermoplastic conducting materials Improved mechanical properties IR absorbant material Alternative to Ghost® from Texplorer (metalized material) _tech | _consulting | _legal 20/21
  • 21. DC-Reactive Magnetron Sputtering _tech MATERIALS Asociación de la Industria Navarra Navarra (Spain) Thank you for your attention Francisco Martín, PhD R&D Department fmartin@ain.es, fmartinjulian@gmail.com _tech | _consulting | _legal 21/21