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以IPDI(异佛尔酮二异氰酸酯)、PBA(聚己二酸丁二醇酯)、DMPA(二羟甲基丙酸)和OMMT(有机蒙脱土)为原料,制备了OMMT/WPU(有机蒙脱土改性水性聚氨酯)纳米复合材料。采用红外光谱(FT-IR)法、热失重分析(TGA)法等对该纳米复合材料的结构和性能进行了表征,并考察了OMMT含量对该纳米复合材料的热稳定性、疏水性和粘接性能等影响。研究结果表明:当w(OMMT)=3%(相对于WPU质量而言)时,纳米复合材料的综合性能相对最好,其热稳定性有所提高、疏水性和耐水解性(吸水率为17.67%)明显提高、初始剥离强度(1.8 N/mm)相对较大且最终剥离强度(3.5 N/mm)相对最大。
OMMT / WPU (organics) was prepared from IPDI (isophorone diisocyanate), PBA (polybutylene adipate), DMPA (dimethylolpropionic acid) and OMMT Montmorillonite modified aqueous polyurethane) nanocomposites. The structure and properties of the nanocomposites were characterized by FT-IR and TGA. The thermal stability, hydrophobicity and viscosity Then the impact of performance. The results show that when OMMT = 3% (relative to the mass of WPU), the nanocomposites have the best comprehensive properties, the thermal stability is improved, the hydrophobicity and hydrolysis resistance (water absorption is 17.67%), the initial peel strength (1.8 N / mm) is relatively large and the ultimate peel strength (3.5 N / mm) is relatively maximum.