Preparation and Ballistic Performance of a Multi-Layer Armor System Composed of Kevlar/Polyurea Composites and Shear Thickening Fluid (STF)-Filled Paper Honeycomb Panels
| Autor: | Cheng-Hung Shih, Chang-Pin Chang, Jhu-Lin You, Ming-Der Ger, Meng-Jey Youh, Yih-Ming Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Dilatant
ballistic performance shear thickening fluid Materials science Polymers and Plastics Armour Composite number Organic chemistry General Chemistry Kevlar Elastomer Article chemistry.chemical_compound QD241-441 multi-layer armor chemistry Honeycomb Composite material Layer (electronics) polyurea elastomers Polyurea |
| Zdroj: | Polymers Volume 13 Issue 18 Polymers, Vol 13, Iss 3080, p 3080 (2021) |
| ISSN: | 2073-4360 |
| Popis: | In this study, the ballistic performance of armors composed of a polyurea elastomer/Kevlar fabric composite and a shear thickening fluid (STF) structure was investigated. The polyurea used was a reaction product of aromatic diphenylmethane isocyanate (A agent) and amine-terminated polyether resin (B agent). The A and B agents were diluted, mixed and brushed onto Kevlar fabric. After the reaction of A and B agents was complete, the polyurea/Kevlar composite was formed. STF structure was prepared through pouring the STF into a honeycomb paper panel. The ballistic tests were conducted with reference to NIJ 0101.06 Ballistic Test Specification Class II and Class IIIA, using 9 mm FMJ and 44 magnum bullets. The ballistic test results reveal that polyurea/Kevlar fabric composites offer better impact resistance than conventional Kevlar fabrics and a 2 mm STF structure could replace approximately 10 layers of Kevlar in a ballistic resistant layer. Our results also showed that a high-strength composite laminate using the best polyurea/Kevlar plates combined with the STF structure was more than 17% lighter and thinner than the conventional Kevlar laminate, indicating that the high-strength protective material developed in this study is superior to the traditional protective materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|