Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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 120F (49C) for two-part systems, and 180F (83C) 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 280F to 350F (138C - 177C) range.

Source:
compositesworld.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Atomic imperfections move quantum communication network closer to reality June 25th, 2017

Research accelerates quest for quicker, longer-lasting electronics: UC Riverside-led research makes topological insulators magnetic well above room temperatures June 25th, 2017

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Discoveries

Atomic imperfections move quantum communication network closer to reality June 25th, 2017

Research accelerates quest for quicker, longer-lasting electronics: UC Riverside-led research makes topological insulators magnetic well above room temperatures June 25th, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Materials/Metamaterials

Atomic imperfections move quantum communication network closer to reality June 25th, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Alloying materials of different structures offers new tool for controlling properties June 19th, 2017

Smart materials used in ultrasound behave similar to water, Penn chemists report June 16th, 2017

Announcements

Atomic imperfections move quantum communication network closer to reality June 25th, 2017

Research accelerates quest for quicker, longer-lasting electronics: UC Riverside-led research makes topological insulators magnetic well above room temperatures June 25th, 2017

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

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