16.00 g P1000, 4.00 g CD-MDI, and 1.05 g polyurethane polyurea bilayer STF microcapsules were mixed and stirred for 2 min by a planetary stirrer. It was poured into a Teflon mold and cured at room temperature for 24 h, followed by curing in an oven at 60 °C for 24 h to give a 1 mm thick composite polyurea material (PM-STF-PUA). The preparation method of pure polyurea sample was consistent with the above method but the microcapsule addition amount was 0%.
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Preparation of Polyurea Composite Material
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Corresponding Organization : China Academy of Engineering Physics
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Variable analysis
independent variables
- Amount of P1000 (16.00 g)
- Amount of CD-MDI (4.00 g)
- Amount of polyurethane polyurea bilayer STF microcapsules (1.05 g)
- Thickness of the composite polyurea material (1 mm)
- Mixing and stirring time (2 min)
- Curing temperature (room temperature for 24 h, followed by 60 °C for 24 h)
- Curing method (poured into a Teflon mold)
- Positive control: Pure polyurea sample prepared using the same method, but without the addition of microcapsules (0% microcapsules)
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