| 光谱学与光谱分析 |
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| Investigation of Nascent Polypropylene In-Reactor Alloy Particles |
| LUO Hua-lin1, ZHANG Chun-bo1, NIU Hui1, ZHAO Ying1*, DONG Jin-yong1, WU Jin-guang2, WANG Du-jin1 |
1. Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China |
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Abstract Heterogeneous nascent particles were observed in a pilot product of polypropylene in-reactor alloy, which was polymerized by Ziegler-Natta/Metallocene hybrid catalyst using Spheripol technology. Most of the particles in the product are translucent, and opaque particles were observed as well. The differences in morphology, composition, chain structure, thermal properties and mechanical properties between these two kinds of particles were investigated by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), scanning electron microscopy (SEM), polarized optical microscopy (POM), and differential scanning calorimetry (DSC) techniques. The results of FTIR, NMR and SEM indicate that different morphology of these two different particles is caused by different content of ethylene-propylene copolymers. The results of DSC and POM showed that the translucent particles has higher crystallization rate than opaque particles due to the presence of ethylene-propylene copolymers. The mechanical properties results showed that the impact resistance property of opaque particles is obviously lower than that of translucent particles, while its tensile strength and bending modulus are much higher than that of translucent particles. Based on the process of Spheripol technology, a preliminary explanation for the formation of different nascent PP in-reactor alloy particles is proposed.
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Received: 2012-05-17
Accepted: 2012-08-12
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Corresponding Authors:
ZHAO Ying
E-mail: yzhao@iccas.ac.cn
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[1] Galli P, Haylock J C. Makromolekulare Chemie Macromolecular Symposia, 1992, 63: 19.
[2] YU Lu-qiang(于鲁强). Petrochemical Technology(石油化工) , 2004, 33: 777.
[3] NIU Hui, LU Li, DONG Jin-yong(牛 慧，逯 丽，董金勇). Science in China Press(科学通报), 2008, 53: 1993.
[4] Wu Yi, Liang Xianyuan, Chen Ruifen, et al. Chinese Journal of Polymer Science, 2012, 30: 470.
[5] Urdampilleta I, Gonzalez A, Iruin J J, et al. Industrial & Engineering Chemistry Research, 2006, 45: 4178.
[6] Kittilsen P, McKenna T F. Journal of Applied Polymer Science, 2001, 82: 1047.
[7] HU Xu-teng, LI Zhen-yu, NIU Hui, et al(胡徐腾，李振宇，牛 慧，等). Petrochemical Technology(石油化工), 2006, 35: 405.
[8] DONG Jin-yong, NIU Hui(董金勇，牛 慧). Petrochemical Technology(石油化工), 2010, 39: 116.
[9] NIU Hui, LU Li, DU Jiang, et al(牛 慧，逯 丽，杜 江，等). Science in China Press(科学通报), 2008, 53: 2534.
[10] Cecchin G, Marchetti E, Baruzzi G. Macromolecular Chemistry and Physics, 2001, 202: 1987.
[11] Cecchin G, Morini G, Pelliconi A. Macromolecular Symposia, 2001, 173: 195.
[12] Urdampilleta I, Gonzalez A, Iruin J J, et al. Macromolecules, 2005, 38: 2795.
[13] Zhou Yong, Niu Hui, Kong Lei, et al. Polymer, 2009, 50: 4690.
[14] Tong Cuiyan, Chen Yong, Zhang Xuequan, et al. Polymer, 2008, 49: 2974.
[15] Xu Junting, Wei Jin, Fu Zhisheng, et al. Journal of Applied Polymer Science, 2005, 98: 243.
[16] Sun Z H, Yu F S, Qi Y C. Polymer, 1991, 32: 1059.
[17] Carman C J, Harrington R A, Wilkes C E. Macromolecules, 1977, 10: 536.
[18] Cai Hongjun, Luo Xiaolie, Ma Dezhu, et al. Journal of Applied Polymer Science, 1999, 71: 93.
[19] Zheng Qiang, Shangguan Yonggang, Yan Shouke, et al. Polymer, 2005, 46: 3163. |
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