尼龙6/蒙脱土纳米复合材料的水辅母料法制备与性能研究

In this paper, we researched the feasibility of preparing Nylon6/Nano-montmorillonite(MMT) masterbatches by Water-Assisted Melt Compounding method based on the theory that water is the natural sweller of montmorillonite. We also studied the effect of MMT content on the intercalation /exfoliation of MMT. In this foundation, we prepared two composites by diluting the 15% MMT content masterbtch and 30% MMT content masterbatch with nylon6 in the proportion of one to four and one to nine and characterized its properties. The results showed that we have got the nylon6/MMT nano-masterbatch and the corresponding size of MMT in the diluted samples had reached a nanometer; Montmorillonite play the role of iso-phase nucleation in the PA6 matrix ,it increased crystallization temperature, reduced the crystallization activation energy and half crystallization time of pure PA6;In comparison with nylon6, The tensile-strength of two diluted samples had increased by 24% and 11%,the Elastic modulus had increased by 49.8% and22.9%,the bending strength of two diluted samples had increased by66.6and26% ,the Flexural modulus had increased by85% and16.7%.The heat deflection temperature also increased obviously.