Sounds like a job for [fireproof, electrically insulative] basalt fiber:
Quote:
Polyethylene terephthalate/basalt stab-resistant sandwich ...
https://journals.sagepub.com doi 10.1177 1099636218789618
In this study, the thicknesswise fibers of the low-melting polyethylene terephthalate (LPET) nonwoven fabrics are needle punched and intertwined with the intra-laminar basalt fibers (BF) of basalt plain woven fabric in order to strengthen the stab-resistant property of LPET/BF sandwich composites as well as to fabricate armor that is composed of less lamination layers.
(PDF) Fabric Composites Reinforced with Thermally Bonded ...
https://www.researchgate.net publication 332483672_Fabric_Composites_Reinforced_with_Therma lly_Bonded_and_Irregularly_Aligned_Filaments_Prepa ration_and_Puncture_Resistant_Performance
Basalt W oven Fabric for cor e layer. 2 mm. 1 . ... which provides the composites with a maximal spike-resistant peak force of 155 N and a maximal knife- resistant peak force of 182 N. The peak ...
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