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依据水是蒙脱土的膨胀剂原理,通过实验研究水辅熔融法制备尼龙6/纳米蒙脱土母料的可行性,以及工艺条件、含量对纳米母料制备的影响。在此基础上,通过母料制备尼龙6/蒙脱土纳米复合材料,并对其力学性能与热变形温度进行测定。实验表明:通过水辅熔融法能够制备尼龙6/纳米蒙脱土母料;采用15%与30 %蒙脱土含量的母料与尼龙6分别按1:4与1:9的比例稀释,两种稀释样品与纯尼龙6相比,拉伸强度分别提高了约24%与11%,弹性模量分别提高了49.8%与22.9%,弯曲强度分别提高了近66.6%与26%,弯曲模量分别提高了85%与16.7%,热变形温度明显提高。
According to the principle that water is the expansive agent of montmorillonite, the feasibility of preparing nylon 6 / nano-montmorillonite masterbatch by water-assisted melt method is studied experimentally, and the influence of process conditions and contents on the preparation of nano-masterbatch is studied. On this basis, nylon 6 / montmorillonite nanocomposites were prepared by masterbatch, and their mechanical properties and heat distortion temperature were measured. The experiment shows that the masterbatch with nylon-6 / nano-montmorillonite can be prepared by the water-assisted melting method; the masterbatch with nylon-6 with 15% and 30% montmorillonite content is diluted by 1: 4 and 1: Compared with pure nylon 6, the tensile strength of the diluted sample increased by about 24% and 11%, the elastic modulus increased by 49.8% and 22.9%, the flexural strength increased by 66.6% and 26%, respectively. The flexural modulus Respectively, increased by 85% and 16.7%, heat distortion temperature increased significantly.