Navigation Links
Novel Light Weight Polymers Made Up of Carbon Nanotubes

University of Virginia engineering professor Mool C. Gupta and his team have used carbon nanotubes to unite the virtues of plastics and metals in a new ultra-lightweight , conductive material that may revolutionize electromagnetic shielding and more.

The team's innovation will be honored with a Nano50 award from Nanotech Briefs magazine, which recognizes the top 50 technologies, products and innovators that have significantly impacted nanotechnology.

Sensitive electronic devices like cell phones and computers require shielding from electromagnetic interference (EMI). Such shielding which must be electrically conductive has traditionally been made of metal, which poses a weight problem in the push to miniaturize and lighten electronics.

In response, Gupta led a team that has developed an ultra-lightweight nanocomposite that outperforms conventional shielding.

This new nanocomposite material is a mixture of plastic, carbon nanotubes and a foaming agent, making it extremely lightweight, corrosion-proof and cheaper to produce than metal. The carbon nanotubes play a key role in creating these unique properties, explained Gupta. Most notably, experiments revealed that only 1 percent to 2 percent of the materials composition needed to be comprised of nanotubes to increase the electrical conductivity by 10 orders of magnitude.

The addition of carbon nanotubes also increased the materials thermal conductivity, improving its capacity to dissipate heat.

Metal is not only heavy; it corrodes easily, Gupta said. And plastic insulators are lightweight, stable and cheaper to produce, but cannot conduct electricity. So the goal, originally, was to take plastic and make it electrically conductive.

After experimenting with adding metal powder to plastics without impacting the weight of the material significantly, Gupta turned to carbon nanotubes. With their ultra-small diameter, hig h aspect ratio, high mechanical strength, good electrical and thermal conductivity and light weight, Gupta and his team found that carbon nanotubes had all of the properties necessary to accomplish the objective.

The long length and small diameter of carbon nanotubes forms an interconnectivity within the plastic that makes it electrically conductive, said Gupta, the Langley Professor of Electrical and Computer Engineering at U.Va.

The structures work well for electromagnetic interference shielding. Once we reached this milestone, we began investigating ways to reduce the weight even further.

Guptas team then added a foaming agent a chemical that creates air pockets to the material. The results astounded even the researchers; this extra step reduced the weight of the material by 50 percent and increased its flexibility.

Gupta's team included U.Va. postdoctoral fellow Dr. Y. Yang, and colleagues at the National Institute of Aerospace and the National Aeronautics and Space Administration. They will receive the Nano50 award in November 2007 at the NASA Tech Briefs National Nano Engineering Conference in Boston.


'"/>




Related medicine news :

1. Novel "CYCLOSPORINE CAPSULE FORMULATION" to be launched
2. Novel biopsy technique for prostate cancer
3. Novel computer model for breast cancer
4. Novel research on liver cancer
5. Novel way to fight cancer
6. Novel test for bowel cancer
7. Novel Anti-Neutrophilic Effect produced by Salmeterol in mild asthma patients
8. Novel Therapy for Chronic Problem
9. Blood Sugar Kept In Control By Novel Protein
10. Novel antibiotic dressing developed for improved wound healing
11. United Kingdom Is Lagging In Novelty In The Field Of Pharmaceuticals
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... ... While it’s often important to take certain medications during the night, finding ... identified a solution. , She developed a prototype for MOTION LIGHT-UP PILL BOX to ... the need to turn on a light when taking medication during the night, allowing ...
(Date:10/13/2017)... IL (PRWEB) , ... October 13, 2017 , ... ... which established the certification process to promote standards of excellence for the field ... Symposium, scheduled for March 22 – 25, 2018 in Orlando, Florida at the ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along ... updates for the primary prevention of cardiovascular diseases during the 15th Annual ...
(Date:10/13/2017)... ... October 13, 2017 , ... Apple Rehab Shelton Lakes , ... mock evacuation of the facility as part of a disaster drill on October 3rd. ... EMS and Shelton City Emergency Manager, as well as the Connecticut Long Term ...
(Date:10/13/2017)... RIDGE, N.J. (PRWEB) , ... October 13, 2017 , ... ... annual Holly Day Market. Featuring a collection of specialty vendors and unique items from ... of personalized and quality-focused health and wellness services offered by the VNA. The ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... Pa. , Oct. 12, 2017 ... leader in innovative solutions for injectable drug administration, today ... before the market opens on Thursday, October 26, 2017, ... the results and business expectations at 9:00 a.m. Eastern ... (U.S.) or 253-336-8738 (International). The conference ID is 94093362. ...
(Date:10/10/2017)... received FDA 510(k) clearance in May 2017 for its highly anticipated ... for endoscopy environments. An innovative secondary monitor solution, ZeroWire Mobile ... the improvement of patient outcomes, procedural efficiency, and the lowering of ... ... By ...
(Date:10/4/2017)... WESTWOOD, Mass. , Oct. 4, 2017  According to the Centers ... by the end of October . PhysicianOne Urgent Care is helping communities ... Westchester, NY , by offering no-cost* flu shots through ... , as mandated by certain health insurance regulations. ... The best time to get a flu shot is by ...
Breaking Medicine Technology: