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Polypropylene / montmorillonite nanocomposites Preparation and properties of

(B) J340/pureMMT; (c) J340/OMMT; (d) J340incorporatedirradiationandgraftedOMMT. (MMTloading: 0.5wt%) Figure 5PP/OMMT composite DSC heating scanning curves of MMT layers hinder the movement of PP chains makes the melting point increase,[link widoczny dla zalogowanych], in which the irradiation of OMMT, the case of grafted melting temperatures is the highest, indicating that the best modification effect of the interface at this time. Comparison of impact strength of the previous data, irradiation, graft OMMT impact strength after the system is the highest in the J340/MMT, which concluded with the DSC analysis results of the test match. To join the untreated pure MMT, the melting temperature decreased slightly compared with pure J34O, indicating that almost no PP molecular chains intercalated into the net without the organic modification of MMT layers among the pure MMT only played a The role of conventional fillers. Figure 6 3.5SEM fracture scanning analysis of the impact is more representative of the fracture surface SEM spline scan photos. Can be found from Figure 6, J34O / MMT composites with the pure, like the cross section of pure J34O there is a large area of the platform, that is brittle fracture, showing that the organic modification of MMT has not been with the PP matrix can not form strong interfacial interaction, can not change (h) Fig. 6SEMimagesofvariousimpactbreakingsurfaces (a) J340; (b) J34o/originalMMT; (c) J340/OMMT/MAPP (MMTloading: 5%) Figure 6PP/MM 'I' composite material impact spline PP scanning photos off 121SEM Fracture type only its effect as the equivalent of conventional filler, and in (b) MMT also saw pictures of the large particles, indicating that the dispersion is uneven, thus toughening very satisfactory results. The fracture surface after adding OMMT great changes have taken place, the cross section becomes very rough, layered like fish scales appeared in the tensile yield strain, the shock generated craze and the occurrence of yield deformation will consume more impact energy leaving toughness, is a typical ductile fracture. Also illustrates the effect on interfacial modification OMMT can increase with the interface between PP matrix interactions. 4 Conclusions prepared by melt mixing PP/0MMT nanocomposites, mechanical properties of the test results showed that: MMT after treatment, and irradiation of organic graft modification of this series measures,[link widoczny dla zalogowanych], the impact strength of the matrix resin than the maximum enhanced 5O% . XRD results show that the organic modification of MMT can effectively expand its interlayer distance. TEM photo proof sheet 0MMT PP matrix achieved in the nano-level dispersion. SEM photographs show that adding nano-fracture scanning does improve filler and filler matrix interaction, improve the interface properties of PP matrix to achieve toughening possible. References E13Q, Zhang, Q, Fu, Polym, Int. , 2000, (49): 1561, [2] E, Manias, A, Touny, Chem. Mater, 2001, (13): 3516. [3] N, Furuichi, Y. Kurokawa. K. Fujita, J,[link widoczny dla zalogowanych], Mater, Sci,[link widoczny dla zalogowanych],, 1996, (31); 4307, [4] P. Reichert. HansjorgNitz, S. Klinke, Macromol, Mater. Eng,, 2000, (275): 8. [5] A. Oya, Y. Kurokawa, H. Yasuda. J. Mater. Sci, 2000, (35): 1045. [6] Ren Xiancheng and so on. China Plastics, 2000,14 (1): 22. [7] Li Yuan, Chen Jianguo and so on. Plastics Industry, 2001,29 (1): 16. [8] M. z. Rong, M. Q, Zhang, J, Mater,[link widoczny dla zalogowanych], Sci, Lett,, 2000, (19): 1159. [9] M. Zanetti, S. Lomakin, G. Camino. Macromo1. Mater, Eng. , 2000, (279): 1. [1o] H. z. Shi, T, Lan, T. J. Pinnavaia. Chem, Mater, 1996. (8): 1584.
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