Forskare löser 100-årigt mysterium om förstärkt gummi

13 maj 2026

Rapporterad av AI

Forskare vid University of South Florida har identifierat den mekanism som gör att kimrökspartiklar förstärker gummi, vilket löser ett vetenskapligt pussel som varat i nästan ett sekel. Deras datorsimuleringar avslöjar hur materialet står emot utsträckning genom att effektivt motverka sig självt.

Teamet, som leds av ingenjörsprofessorn David Simmons, genomförde 1 500 molekylärdynamiska simuleringar som totalt motsvarade 15 års beräkningstid. I samarbete med postdoktorn Pierre Kawak och doktoranden Harshad Bhapkar visade de att kimrökspartiklar begränsar hur mycket gummit tunnas ut när det sträcks. Detta tvingar materialet att expandera i volym, vilket avsevärt ökar dess styvhet och styrka.

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13 maj 2026 02:51