Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > News > Formulating challenge: Creating better epoxies for vacuum-infused aerospace parts

March 17th, 2008

Formulating challenge: Creating better epoxies for vacuum-infused aerospace parts

Abstract:
More attention is being focused on fabricating processes for aircraft structures that can save time and money and improve efficiency while yielding high-quality parts. Historically, nearly all aircraft designers have assumed autoclave cure as the norm, despite the well-documented cost and time advantages of out-of-autoclave processing. The formulation of epoxy-based resin systems that can be used to vacuum infuse dry fibers or preforms holds great promise for producing large, complex composite parts with less than 1 percent void content and controllable resin/fiber ratio. Vacuum infusion permits the use of inexpensive "soft" tooling and ambient/near-ambient curing to reduce autoclave processing costs and save energy.

A key to formulating one- and two-part epoxy resin systems for aerospace vacuum infusion is balancing viscosity with in-service performance. Huntsman Advanced Materials (The Woodlands, Texas), a pioneer with its trademarked RenInfusion epoxies for infusion processes, has found that through the use of nano-based toughening agents, new-generation infusion epoxies can be produced with physical property combinations that once were apparently diametrically opposed. For example, epoxy formulations have been developed that can be infused at temperatures less than 120ºF (49ºC) for two-part systems, and 180ºF (83ºC) for one-part systems, says Huntsman senior chemist Jim Hoge, delivering adequate pot life, a high glass transition temperature (Tg), and good toughness with high modulus. System dry Tg's are in the 280ºF to 350ºF (138ºC - 177ºC) range.

Source:
compositesworld.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Iranian Experts Clean Uranium-Contaminated Water by Nano-Particles November 23rd, 2014

Novel Method Found for Connection of Metallic Alloys to Polymers November 23rd, 2014

New research project supports internationalisation in nano-research: Launch of new “Baltic Sea Network” November 22nd, 2014

3rd Iran-Proposed Nano Standard Approved by International Standard Organization November 22nd, 2014

Discoveries

Iranian Experts Clean Uranium-Contaminated Water by Nano-Particles November 23rd, 2014

Novel Method Found for Connection of Metallic Alloys to Polymers November 23rd, 2014

NMTI announces breakthrough solutions for HAMR nanoantenna for next-generation ultra-high density magnetic storage November 21st, 2014

Nano Sorbents Able to Remove Pollutions Caused by Oil Derivatives November 20th, 2014

Materials/Metamaterials

Novel Method Found for Connection of Metallic Alloys to Polymers November 23rd, 2014

Sustainable Nanotechnologies Project November 20th, 2014

Total Nanofiber Solutions Company FibeRio® Launches The Fiber Engine® FX Series Systems with 10X Increase in Output November 18th, 2014

Nanocomposites Strengthen Bone Implants November 13th, 2014

Announcements

Iranian Experts Clean Uranium-Contaminated Water by Nano-Particles November 23rd, 2014

Novel Method Found for Connection of Metallic Alloys to Polymers November 23rd, 2014

New research project supports internationalisation in nano-research: Launch of new “Baltic Sea Network” November 22nd, 2014

3rd Iran-Proposed Nano Standard Approved by International Standard Organization November 22nd, 2014

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More












ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE