NRL Develops Lighter, Field Repairable Transparent Armor

The NRL-developed transparent polymer armor consists of alternating layers of elastomeric polymer and a harder material substrate. Very small crystalline domains, which also provide rigidity, give the polymer its transparency. (U.S. NRL)
Photo source
www.nrl.navy.mil
Research chemists at U.S. Naval Research Laboratory have developed and patented a transparent thermoplastic elastomer armor to reduce weight, inherent in most bullet-resistant glass, while maintaining superior ballistic properties.

Thermoplastic elastomers are soft, rubbery polymers converted by physical means, rather than a chemical process, to a solid. Consequently, the solidification is reversible and enables damaged armor surfaces to be repaired ‘on-the-fly’ in the field.

“Heating the material above the softening point, around 100 degrees Celsius, melts the small crystallites, enabling the fracture surfaces to meld together and reform via diffusion,” said Dr. Mike Roland, senior scientist, NRL Soft Matter Physics. “This can be accomplished with a hot plate, akin to an iron, that molds the newly forming surface into a smooth, flat sheet with negligible effect on integrity.”

Up to now, NRL scientists have tested the use of polymeric materials as a coating to achieve improved impact resistance of hard substrates. Applying polyurea and polyisobutylene layers enhance the ballistic performance of armor and helmets, and achieve greater ballistic effectiveness and mitigation of blast waves.

By using a variation of employing thermoplastic elastomers, NRL scientists are able to recreate superior ballistic properties of polyurea and polyisobutylene coatings, with the added benefit of the material being transparent, lighter than conventional bullet-resistant glass, and repairable.

“Because of the dissipative properties of the elastomer, the damage due to a projectile strike is limited to the impact locus. This means that the affect on visibility is almost inconsequential, and multi-hit protection is achieved,” Roland said.

NRL’s transparent thermoplastic elastomer armor technology is covered by U.S. Patent #9,285,191; “Polymer Coatings for Enhanced and Field-Repairable Transparent Armor.”

600450 NRL Develops Lighter, Field Repairable Transparent Armor glassonweb.com

See more news about:

Others also read

Pacific Glazing Contractors Achieves NACC Certification
The latest company to complete the North American Contractor Certification (NACC) process is Pacific Glazing Contractors.
Vitro Glass launches operations of jumbo MSVD coater at Wichita Falls
New equipment fills vital market need for larger glass, bolsters company’s legacy of innovation.
Hope's Windows Expands One55 Series Product Line
Hope’s® Windows, Inc. announces the expansion of its exclusive One55™ Series solid hot-rolled steel product line. The company now manufactures doors in the One55 style – meeting a growing demand in the residential building market.
Graham Windows Grace Award-Winning “Motor City” Project
The Strathmore Hotel Apartments Revitalized.
Installed Building Products Announces the Acquisition of Cutting Edge Glass
Acquisition Adds Over $10.0 Million of Trailing Twelve-Month Revenue.
Miami Beach Convention Center
For more than two years, the Miami Beach Convention Center has undergone a $620 million restoration and expansion that is soon to be completed.

From industry

10924 Granite Street, Suite 200
Charlotte, NC 28273
United States

10301 North Enterprise Drive
Mequon, WI 53092
United States

NEWS RELATED PRODUCTS

Diamon-Fusion International, Inc.
HHH Tempering Resources, Inc.
Diamon-Fusion International, Inc.
Diamon-Fusion International, Inc.
Trex Commercial Products
Diamon-Fusion International, Inc.

Add new comment