Synthesis and characterization of hydroxyl-terminated polybutadiene modified low temperature adaptive self-matting waterborne polyurethane
Jiaran Liu, Desheng Yang, Shengnan Li, Chaofei Bai, Chengzhao Tu, Fengdan Zhu, Xin Wei, Guoping Li, Yunjun Luo
Abstract
increased by 21.04 °C, indicating that the degree of microphase separation increased. At -50 °C, the elongation at break and tensile strength of WPU modified by HTPB can still maintain 785.2% and 76.7 MPa, which are 1.82 times and 2.91 times those of WPU with only PTMG as soft segment, respectively. The self-matting WPU coating prepared in this paper can meet the requirements of severe cold weather and has potential application prospects in the field of finishing.
Topics & Concepts
PolyurethanePolybutadieneHydroxyl-terminated polybutadieneMaterials sciencePolymer chemistryCharacterization (materials science)Chemical engineeringComposite materialCopolymerPolymerNanotechnologyEngineeringPolymer composites and self-healingSurface Modification and SuperhydrophobicityPolydiacetylene-based materials and applications