Preparation and properties of polyurethane/zeolite 13X composites

✍ Scribed by Zhiping Lv; Li Zhang; Yunfei Yang; Xiaoxia Bi

• Publisher: Elsevier Science
• Year: 2011
• Weight: 474 KB
• Volume: 32
• Category: Article
• ISSN: 0261-3069
• DOI: 10.1016/j.matdes.2011.02.016

✦ Synopsis

The pre-polymerization method was used to prepare polyurethane/zeolite 13X (PU/13X) composites. The effects of zeolite 13X content and its surface organic modification on the mechanical properties of composites were investigated. It was demonstrated that the mechanical properties of PU/13X composites were better than that of pure PU. The surface organic modification of zeolite 13X had no obvious effect on the mechanical properties of PU/13X composites. The optimal tensile strength and tear strength were obtained with 3-5% and 5-7% zeolite 13X loading, respectively. Thermogravimetric analysis (TGA) results showed that the decomposition temperature of PU/13X composites increased in comparison with pure PU. Dynamic mechanical analyzer (DMA) suggested a lower glass transition temperature (T g ) and better micro-phase separation of soft and hard segments in PU/13X composites. Besides, PU/13X composites had excellent solvent resistance performance.