Brand names such as Nylon/Cordura/Anso, Kevlar/Twaron and Kermel/Nomex are different forms of amides, the generic name for all fiber-forming amides with recurring amide groups (-CONH2) , amides comprise the largest family of engineering plastics with a very wide range of applications.
Polyamide (Nylon) was the armour material of the Korean & Vietnam wars in the 1950s and 1960s that took over from silk that was used in the second world war.
(Twaron, Kevlar, SVM, etc) were the NATO armour of the “cold war” in the 70, 80’s and still in service today
These materials are not getting much stronger… the technology is mature.
Ultra high molecular weight polyethylene (UHMWPE) – is a subset of the thermoplastic, and has become more widespread in the Eastern European and Middle Eastern armed conflicts of the 1990’s and 2000’s.
UHMWPE’s are also a mature technology with little increases in strength….
But NOW … almost off the radar are in service proven terpolyaramides developed in the 1990s and placed into commercial production in the early 21st Century.
AuTx is currently able to deliver 30% mass savings for fragment protection and is increasing in strength every year, and has a huge way to go… we are now at 280cN/Tex and we have seen 700cN/Tex in the lab….