| PP/PS共混体系相结构形成与演变 |
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| 引用本文： | 王亚,李景庆,赵蕴慧,盛京.PP/PS共混体系相结构形成与演变[J].高分子学报,2007,0(7):604-608. |
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| 作者姓名： | 王亚 李景庆 赵蕴慧 盛京 |
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| 作者单位： | 天津大学材料学院,天津,300072 |
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| 摘 要： | 以连续共混过程中间歇出料法研究了聚丙烯(PP)/聚苯乙烯(PS)体系共混过程中的扫描电镜图样演化过程,利用小角激光散射(SALS)证明了PP/苯乙烯-乙烯-丙烯嵌段共聚物(SEP)/PS体系的部分相容性,同时说明SALS研究聚合物熔体动态过程的有效性.针对扫描电镜图样,用重心粒径dg这一结构参数研究了PP/PS体系共混过程,利用分布函数求取了分散相PP分形维数,对共混过程中相分散进行了研究.
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| 关 键 词： | SEM图样分析 相尺度 分形 SALS |
| 收稿时间： | 2006-07-03 |
| 修稿时间： | 2006-07-032006-09-29 |
PHASE FORMATION AND DEVELOPMENT IN POLYPROPYLENE/POLYSTYRENE BLENDS |
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| WANG Ya,LI Jingqing,ZHAO Yunhui,SHENG Jing.PHASE FORMATION AND DEVELOPMENT IN POLYPROPYLENE/POLYSTYRENE BLENDS[J].Acta Polymerica Sinica,2007,0(7):604-608. |
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| Authors: | WANG Ya LI Jingqing ZHAO Yunhui SHENG Jing |
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| Institution: | School of Materials &; Engineering,Tianjin University,Tianjin 300072 |
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| Abstract: | The phase formation and development of polypropylene/polystyrene (PP/PS) blends during mixing were investigated by pattern analysis of scanning electron microsc opy.The effect of compatibilization of styrene-ethylene-propylene block copoly mer (SEP) on polypropylene/polystyrene (PP/PS) was proved by small angle laser sc attering (SALS),which confirmed the validity of SALS to describe the morphology of blends.The morphology development was investigated by analysing the variation of phase dimension d_g.Further,the fractal character of distribution of p h ase dimension was examined in terms of distribution function to study the dynami cs of phase dispersion. |
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| Keywords: | SEM Phase dimension Fractal SALS |
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