微孔交联硅橡胶泡沫:成核剂(多面体低聚硅氧烷)对流变性、硫化性、细胞形态学的影响

Q2 Materials Science

Polymer-Plastics Technology and Engineering Pub Date : 2018-11-02 DOI:10.1080/03602559.2017.1410845

Tao Liu, Y. Lei, Fengshun Zhang, Shaoyun Guo, S. Luo

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引用次数: 5

摘要

摘要采用超临界二氧化碳法制备了一系列硅橡胶/二氧化硅/多面体低聚硅氧烷(POSS)微孔泡沫材料。研究了POSS颗粒对复合材料流变性能、硫化性能和细胞形态的影响。结果表明，POSS接枝羧酸基团可以提高硅橡胶的基体强度。POSS接枝羧酸基团在硫化过程中起抑制作用。POSS颗粒在微细胞结构的形成中起着重要作用。当POSS含量为2.0 wt%时，细胞尺寸可达3.77µm，细胞密度可达7.99 × 109 cells /cm3。图形抽象

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Microcellular Crosslinked Silicone Rubber Foams: Influence of Nucleation Agent (Polyhedral Oligomeric Silsesquioxane) on the Rheological, Vulcanizing, Cell Morphological Properties

ABSTRACT A series of microcellular silicone rubber/silica/polyhedral oligomeric silsesquioxane (POSS) foams were prepared by supercritical carbon dioxide. The effect of POSS particles on the rheological behavior, vulcanizing, and cellular morphology of the composites was investigated. The results showed that the POSS grafted carboxylic acid group can improve the matrix strength of silicone rubber. POSS grafted carboxylic acid group act as inhibiting agent in the vulcanizing process. POSS particles play an important role in the microcellular structure formation. When the POSS content was 2.0 wt%, the cell size and cell density can reach to 3.77 µm and 7.99 × 109 cell/cm3, respectively. GRAPHICAL ABSTRACT

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来源期刊

Polymer-Plastics Technology and Engineering 工程技术-高分子科学

CiteScore

1.71

自引率

0.00%

发文量

审稿时长

4 months