A study on the synthesis and properties of polyurethane/clay nanocomposites

被引：28
|
作者：
Song, L
Hu, Y [1 ]
Li, BG
Wang, SF
Fan, WC
Chen, ZY
机构：
[1] Univ Sci & Technol China, State Key Lab Fire Sci, Anhua 230026, Peoples R China
[2] Univ Sci & Technol China, Struct Res Lab, Anhua 230026, Peoples R China
来源：
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2003年 / 8卷 / 05期
关键词：
polyurethane; nanocomposite; clay; tensile strength; thermal stability; flame retardant;
D O I：
10.1080/10236660304871
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyurethane/organophilic montmorillonite (PU/OMT) nanocomposites based on polyether, organophilic montmorillonite, phenylmethane diisocyante, diglycol, and glycerine were synthesized and characterized by x-ray diffraction (XRD). Delaminated or intercalated structures in polyurethane/OMT nanocomposites with different OMT content were found. The mechanical, thermal, and inflammability properties of PU/OMT nanocomposites were investigated through tensile, thermogravimetry, differential scanning calorimetry, and cone calorimetry experiments. It is shown that polyurethane/OMT nanocomposites have enhanced tensile strength, improved thermal stability, and flame retardant properties relative to bulk polyurethane. The tensile strength of PU/OMT with 4.7 wt% OMT content was double compared to that of bulk PU. The thermal and flame retardant properties of PU/OMT were enhanced compared to that of bulk PU. The thermal and flame retardant properties of PU/OMT increased with increasing OMT content.
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页码：317 / 326
页数：10
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