期刊
COMPOSITES PART B-ENGINEERING
卷 98, 期 -, 页码 370-381出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2016.05.024
关键词
Nanocomposites; Adhesion; Physical properties; POSS
资金
- Scientific and Technological Research Council of Turkey (TUBITAK) [113M258]
In this paper, the addition of octamaleamic acid-POSS (OM-POSS) nanoparticles to silicone rubber (SR) composites were investigated for enhancing the adhesion properties to reinforcing fibers. The content of OM-POSS was examined as the experimental parameter. The reference was a 5-phr silica filled SR compound. The peroxide curing characteristics of composites was determined by means of differential scanning calorimeter (DSC) and moving die rheometer. It was found that OM-POSS retarded the curing time and decreased the crosslinking density. DSC analysis indicated that the crosslinking reaction started at lower temperature as the OM-POSS concentration increased. The dynamical mechanical analysis (DMA) results showed that the melting point decreased by the addition of OM-POSS content. The crystallinity of SR decreased with increasing OM-POSS content. The thermal stability of SR composites obtained from TGA apparently improved by the addition of OM-POSS. The SEM and TEM pictures showed that the OM-POSS distribution was homogeneous at lower contents, but some agglomerates were seen when the content of OM-POSS increased. Tensile tests exhibited that comparable mechanical properties were achieved for SR/OM-POSS composites with respect to reference composite. It was demonstrated by H-adhesion tests that the utilization of OM-POSS in the SR composites improved the adhesion of the matrix to Rayon fiber. (C) 2016 Elsevier Ltd. All rights reserved.
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