Publications by authors named "Cong-Kun Hu"
The ladder phenyl/vinyl polysilsesquioxane (PhVPOSS) was used to improve the flame-retardancy performances of ethylene-vinyl acetate copolymer (EVA)/aluminum hydroxide (ATH) composites due to the reactivity of its vinyl groups. FTIR, XPS, H NMR, and SEM-EDS data demonstrated the PhVPOSS grafting onto EVA molecular chains. The PhVPOSS improved the thermal stability of EVA/ATH composites, as shown by the thermogravimetric analysis (TGA).
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- The study explored the use of PTPET elastomer, a moisture-resistant alternative to polyurethane, synthesized using a MiniLab twin-screw reactor instead of traditional methods for better data insights.
- Researchers calculated the activation energy of PTPET elastomer based on torque variations during synthesis at different temperatures, and synthesized composites with flame retardants that enhance various properties without compromising the material's structure.
- Comprehensive characterization of the elastomers and composites indicated that flame retardants improve flame resistance, forming a protective char layer while preserving the original qualities of PTPET, suggesting its potential as a versatile engineering material.
Alkynyl-terminated polyethylene oxide-tetrahydrofuran (ATPET) and glycidyl azide polymer (GAP) could be linked through click-chemistry between the alkynyl and azide, and the product may serve a binder for solid propellants. The effects of the energetic plasticizers A3 [1:1 mixture of bis-(2,2-dinitropropy) acetal (BDNPA) and bis-(2,2-dinitropropyl) formal(BDNPN)] and Bu-NENA [N-butyl-N-(2nitroxyethyl) nitramine] on the curing reaction between ATPET and GAP have been studied. A diffusion-ordered nuclear magnetic resonance spectroscopy (DOSY-NMR) approach has been used to monitor the change in the diffusion coefficient of cross-linked polytriazole polyethylene oxide-tetrahydrofuran (PTPET).
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