US Navy Resin Will Make Composites Stronger, Flame-Resistant & Cheaper to Process
A new high-performance, PEEK-like phthalonitrile resin developed by the US Naval Research Laboratory is resistant to high temperatures, flammability, and impacts, and can be processed using standard methods like resin infusion molding and resin transfer molding. Loss tangent characteristics and excellent dielectric permittivity make it especially useful in applications where RF transparency is required, such as high-temperature radomes that shield radar antennae like the one on the top of this E-2C Hawkeye aircraft. (Source: US Navy)
The Navy's new powerful LaWS laser weapon is great at taking out composite targets over a mile away. How much time before other countries like China and Russia design their own and burn through our composites?
Ann, while I don't have a use for this information today, it is certainly handy to have. This source of knowledge is a resource, and like most resources becomes reallyn valuable wnen you need it, and only "interesting" the rest of the time. I can see an immediate application of this material in high frequency hiher power RF electrical applications.
What was not mentioned about the new material was outgassing, which affects the usefulness of a material for satellite and space applications, and also for semiconductor fabrication applications.
ON the issue of technical writing, DN has consistently evidenced that the deeper a technical issue is, the lesser the comments. (Case in point; this article). But I think that should be expected; -- for example, there have been several other deep articles from Guest Bloggers that I couldn't begin to comment on. The interested field of commenters just naturally narrows.
ON the subject of RIM, I was [minimally] familiar with another industrial process – Reaction Injection Molding (a different RIM) which is [loosely translated as] an injection of a 2-part epoxy. A very slow processing time because 'cure' is required. Checking my old faithful resource, Wikipedia doesn't have a page for your definition of RIM but does link it to your other suggested process, Resin Transfer (RTM).
Always interesting to learn about new things – Thanks!
How can automakers, aerospace contractors, and other OEMs get new metal alloys that are stronger, harder, and can survive ever higher temperatures? One way is to redesign their crystalline structures at the nanoscale and microscale.
Although a lot of the excitement about 3D printing and additive manufacturing surrounds its ability to make end-products and functional prototypes, some often ignored applications are the big improvements that can come by using it for tooling, jigs, and fixtures.
A fun and informative tour you can attend at the upcoming Design & Manufacturing Minneapolis, MD&M Minneapolis, and other events there, is the Materials Innovation Tour on Wednesday afternoon. I'll be leading it.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
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So if you can't attend live, attend at your convenience.