Influencing on Structure and Mechanical Properties of PA6/PP Blends for Different Graft Yield Compatibilizer

Abstract:

With the melt grafting method using styrene (St) as co-monomer to maleic anhydride (MAH)，the VERSIFY (V ethylene-propylene copolymer of the content of ethylene is 12%) was grafted. Different graft yield materials, V-g-(MAH-co-St) (g-V) were obtained. Nylon 6 (PA6)/ PP blends were prepared using twin-screw extruder. Using MFR, SEM, IR and mechanical properties testing analysis methods, morphology and mechanical properties of PA6/PP blends were studying on the different graft yield g-V. The results showed with increasing the graft yield, the minimum melt flow rate decreased and the size of the PP dispersed phase became smaller and more uniform. The addition of taller graft yield materials remarkably improved that the anhydride group in g-V reacted with the amine end groups of the PA6, and PP-PA6 copolymers were formed in situ, which effectively improved the compatibility between PP and PA6. The size of PP domains in the PA6 matrix was significantly reduced. Multi-monomer melt grafting can obtain a high rate of graft material. From the MAH: St = 0.5 to the MAH: St = 1, the grafting yield increased significantly. Continuing to improve MAH: St ratio, the magnitude of changes of graft yield of grafting decreases. Different grafting yield of multi-monomer g-V toughened PA6, a high rate of graft effect was good.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 533-536
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.533
• Online since: February 2011
• Authors: Jia Min Zhang, Ming Yi Zhu, Zhao Xun Lian, Rong Zhu
• Keywords: Graft Yield, Mechanical Property, Nylon 6/PP blend

References

[1] Li Y, Xie X M, Guo B H. Study on Styrene-assisted Melt Free-radical Grafting of Maleic Anhydride onto Polypropylene. Polymer, 2001, 42: 3419-3425.

DOI: 10.1016/s0032-3861(00)00767-9

[2] Ha C S, Park H D, Cho W J. Compatibilizers for Recycling of the Plastic Mixture Wastes. Ⅱ. The Effect of a Compatibilizer for Binary Blends on the Properties of Ternary Blends. Journal of Applied Polymer Science, 2000, 76: 1048-1053.

DOI: 10.1002/(sici)1097-4628(20000516)76:7<1048::aid-app8>3.0.co;2-r

[3] Wang D, Xie X M. Novel Strategy for Ternary Polymer Blend Compatibilization. Polymer, 2006, 47: 7859~7863.

DOI: 10.1016/j.polymer.2006.09.026

[4] Xie X M, Chen N H, Guo B H, et al . Study on multi-monomer melt-grafting onto polypropylene in an extruder. Polymer International, 2000, 49: 1677-1683.

DOI: 10.1002/1097-0126(200012)49:12<1677::aid-pi590>3.0.co;2-0

[5] CHEN Xiao-lang, LUO Zhu, YU Jie, et al. Study on Compatibilization of ABS/PBT Blend Alloys. Polymer Materials Science and Engineering, 2006, 22(2): 161-164.

[6] Sun Y. J., Hu G. H., Lambla M. Angew. Makromol. Chem. , 1995, 229: 1~13.

[7] Cartier H., Hu G. H. J. Polym. Sci., Part A, 1998, 36: 1053~1063.

[8] Hu G. H., Flat J. J., Lambla M. Makromol. Chem, Macromol. Symp. , 1993, 75: 137~157.

[9] Gaylord N. G., Mehta R., Kumar V., Tazi M. J. Appl. Polym. Sci., 1989, 38: 359~371.

[10] Gaylord N. G., Mehta R. J. Polym. Sci., Polym. Chem., 1988, 26: 1189~1198.

[11] Gaylord N. G., Mehta R., Mohan, D. R., Kumar V. J. Appl. Polym. Sci., 1992, 44: 1941~(1949).

[12] Cartier H, Hu G H. Journal of Polymer Science: Part A: Polymer Chemistry, 1998, 36(13): 2763~2774.