Crystallization Behaviors and Mechanical Properties of Nylon 6 Modified by Compound Nucleating Agents
The calcium lignite wax nucleating agent(TMN-102)was physically blended with the erucic acid amide to obtain compound nucleating agent(TMN-102E)to promote the dispersion of TMN-102 in nylon 6(PA6)and investigate the crystallization behaviors and mechanical properties of the compound systems.The results show that the molecular structure of TMN-102 is not changed after physically blended with the erucic acid amide.TMN-102 could significantly accelerate the isothermal and non-isothermal crystallization rates of the PA6,and the crystallization temperature and crystallinity increase with the addition of TMN-102 at the same cooling rate.Meanwhile,the non-isothermal crystallization activation energies of the samples decrease with the TMN-102 addition,which indicates that TMN-102 could serve as an effective nucleating agent for PA6 to improve its crystallization properties.In addition,because of the significant improvement of the dispersibility of TMN-102E in the PA6 matrix,TMN-102E has more excellent nucleation effect than that of TMN-102.Finally,the addition of TMN-102 could improve the notch impact strength and tensile strength of PA6 by improving the crystal perfection,and this improvement is more obvious with the uniform dispersion of TMN-102E in the PA6 matrix.
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