Poly(vinyl chloride) composite emulsion resins modified by polyurethane |
| |
| Authors: | Xiaolei Zhang Mingwang Pan Shengnan Xing Jingsheng Li |
| |
| Institution: | (1) Institute of Polymer Science & Engineering, Hebei University of Technology, Tianjin, 300130, China;(2) Hebei Institute of Energy, Shijiazhuang, 050081, China;(3) College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang, 050018, China |
| |
| Abstract: | An ionomer-type of polyurethane (PU) emulsion was prepared from toluene diisocyanate (TDI), polypropylene glycol (PPG) and
dimethylol propionic acid (DMPA) following a self-emulsification process. The modified poly(vinyl chloride) (PVC) emulsion
resin was obtained by in situ emulsion copolymerization using the PU as seeds in an autoclave. The effects of PU molecular
weight on the mechanical properties and thermal stability of the PU/PVC materials were investigated. The composite latex particles
and composite materials were determined and characterized using a laser particle size analyzer, transmission electron microscopy
or scanning electron microscopy. The study results showed that the PU/PVC hybrid emulsion particles possess a core/shell structure.
When the general mechanical properties of the composite materials increase, the thermal stabilities decrease a little. The
tough fractures on the surface of the PU/PVC composite sample following impact are quite obvious.
__________
Translated from Journal of Hebei Normal University (Natural Science Edition), 2007, 31(2): 228–232 译自: 河北师范大学学报(自然科学版)] |
| |
| Keywords: | polyurethane poly(vinyl chloride) emulsion resin modifying |
| 本文献已被 万方数据 SpringerLink 等数据库收录！ |
|
