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It's Just String & Glue. This is a newsletter about composites, the strings, the glues, and the business.


A Word about Vitrimers – A Thermoset That Can Act Like a Thermoplastic
#composites, #sustainability, #vitrimer, #recyclableresin, #biocomposite, #bioresins I have been seeing articles in several different things that I read about a new class of polymers that is rather intriguing. These polymers are called “vitrimers”. Polymers that were processable by covalent bond exchange reactions (movable and reconfigurable covalent crosslinks) were developed initially in the 1990’s at the University of Illinois Urbana-Champaign (UIUC). James Economy’s gr
Feb 257 min read


Composites in Orthopedics Part 1 – the Hip
#composites, #orthopedics, #medicaldevices, #hipreplacement, #fibers, #resins Hello everyone, I’m back for my first post in 2026. I hope everyone had a great holiday and is ready to start this year strong – I know I am. I’m gong to diverge a bit from the sustainability rant that I have been on for the last several months and talk a bit about composites in orthopedics and how composite materials are replacing metals – especially titanium – in orthopedics, both the implanted
Jan 78 min read


Methanolysis – A Solution for Polyester Waste that Might Work with Composites
#composites, #sustainability, #recycledplastic, #methanolysis, #resins I saw an interesting post this week from an unlikely source that...
Sep 3, 20255 min read


A New Entrant in the Recycled Carbon Fiber Scrap Business – Thermoplastic 3D Printing
#composites, #sustainability, #recycling, #carbonfiber, #thermoplastics, #recycledfiber There seem to be more new entrants into the use...
Aug 5, 20257 min read


Some Recycling Updates for the Composites Industry – Wind Turbine Blades
#composites, #sustainability, #recycling, #fibers, #resins, #windenergy This week I thought I would give everyone some updates in the...
Jun 17, 20255 min read


Fully Plant-Based Epoxy Resins - Are They Going Commercial?
#composites, #sustainability, #plantbased, #rbioresin, #resins One of the things that I wrote about in the book that I have coming out is...
Jun 2, 20256 min read


Recycled Thermoplastics and Recycled Fibers – a Pretty Good Mix
#composites, #sustainability, #thermoplastics, #recycledfibers, #recycledresin I saw an article in Composites World this week that I...
Mar 31, 20257 min read


Some Good News on the Recycling Front and Other Updates
#composites, #sustainability, #recycling, #fibers, #resins I heard about this a few days before it was announced at JEC World in Paris. ...
Mar 17, 20257 min read


Part 4 of PFAS and Microplastics – Vinyl Ester Resin Chemistry and Manufacture
#composites, #vinylgroup, #styrene, #acrylics, #polyvinylchloride, #resins This week I’m going to finish the polyester/epoxy resin part...
Mar 11, 20257 min read


Part 2 of PFAS and Microplastics – Epoxy Resin Production
#composites, #toxicchemicals, #epoxy, #bpa, #epichlorohydrin, #bisphenol-a, #resin As promised, this week I’m going to write about the...
Feb 25, 20257 min read


Composites, Microplastics, PFAs, and Toxic Chemistry – Introduction to a Multipart Series
#composites, #microplastics, #foreverchemicals, #environmentaltoxins, #microfibers, #recycledresins I’ve been reading quite a bit about...
Feb 10, 20257 min read


How Do We Tell if Reclaimed Composite Materials are Good Enough
#composites, #sustainability, #certification, #recycledfiber, #recycledresin, #recycling, #reclaimedfiber, #reclaimedresin I’ve seen some...
Jan 13, 20255 min read


A Bit More about Recyclable, Recycled, Plant Based Composites and Boats
#composites, #sustainability, #fibers, #resins, #biobased, #naturalfiber, #plantbased First I want to wish everyone a great holiday. ...
Dec 23, 20247 min read


What to do with Old Boats – Is Recycling Polyester a Thing?
#composites, #sustainability, #recycling, #polyester, #recyclepolyester, #oldboats The short answer is yes, it is possible and it is even...
Oct 29, 20247 min read


Offshore Wind to Dramatically Increase by 2050 – Will the Blades be Sustainable?
#composites, #sustainability, #offshorewind, #fibers, #resins, #renewableenergy There is an article in Composites World this week...
Oct 1, 20247 min read


What’s Happening in Natural Fiber Composites?
#composites, #sustainability, #fibers, #resins, #biobased, #naturalfiber, #plantbased As it turns out, there is quite a bit going on,...
Sep 23, 20246 min read


UPDATE – NREL Success – Plant-Based Carbon / Epoxy Composite
#composites, #sustainability, #fibers, #resins, #biobased, #naturalfiber, #plantbased, #bioresin There is an article in the latest...
Sep 9, 20246 min read


Latest Developments in Plant-Based Resins for Composites
#composites, #sustainability, #fibers, #resins, #biobased, #naturalfiber, #plantbased This week I’m going back to sustainability for...
Aug 26, 20245 min read


What’s New in Natural Fiber Composites – Mostly Flax and Hemp
#composites, #sustainability, #flaxfiber, #fibers, #resins, #biobased, #naturalfiber, #plantbased Earlier this month I talked about flax...
Jul 30, 20246 min read


So, What Plants Will be Used in the Future for Composites?
#composites, #plantbased, #biobased, #sustainability, #fibers, #resins, #naturalfiber Just as an explanation for why I haven’t posted in...
Jun 18, 20246 min read

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