Waterborne Polyurethane Dispersion Synthesized from CO2 Based Poly (Ethylene Carbonate) Diol with High Performance
Zhenhong Huang, Zonglin He, Chaozhi Wang, Zhu Ding, Jiaoyan Ai, Lina Song, Baohua Liu
Abstract
CO2-based aliphatic polycarbonates (APCs) are not widely commercialized due to the poor performance and high cost, compared to the traditional synthetic materials. In this paper, poly(ethylene carbonate) diol (PECD) was synthesized from CO2 and ethylene oxide (EO), and the comprehensive properties were characterized. Furthermore, the preparation and properties of waterborne polyurethane dispersion (WPU) derived from PECD were studied. The result showed that PECD had high reactivity, narrow molecular weight distribution index and excellent thermal stability. The obtained WPU exhibited superior tensile performance, adhesion properties and surface hardness. Due to the low cost of EO and CO2, PECD is expected to be widely used in the preparation of polyurethanes.