An investigation of the effects of a silicalite type zeolite on PDMS-composites
The aim of this paper was to investigate the effect of a silicalite type zeolite on PDMS-zeolite composites. The obtained results show that the introduction of a silicalite type zeolite into polysiloxane matrices results in a change of the equilibrium degree of swelling of the composites in toluene,...
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2000-03-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.shd.org.yu/HtDocs/SHD/Vol65/No3-Pdf/V65-No3-04.zip |
| _version_ | 1819136973380517888 |
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| author | BORIVOJ ADNADJEVIC JELENA JOVANOVIC |
| author_facet | BORIVOJ ADNADJEVIC JELENA JOVANOVIC |
| author_sort | BORIVOJ ADNADJEVIC |
| collection | DOAJ |
| description | The aim of this paper was to investigate the effect of a silicalite type zeolite on PDMS-zeolite composites. The obtained results show that the introduction of a silicalite type zeolite into polysiloxane matrices results in a change of the equilibrium degree of swelling of the composites in toluene, their hardness and their thermal stability. With increasing amount of zeolite, the time required to achieve the equilibrium degree of swelling (DSe) is reduced, the DSe decreases and the hardness increases. Two ranges of the effect of the zeolite concentration on the composite characteristics were noted. At zeolite concentrations up to about 12 % there are significant changes of the DSe and the hardness with zeolite concentration, while these effects are considerably less pronounced at higher concentrations. The results obtained show that the silicalite type zeolite acts as a reinforcing filler. We believe that with increasing zeolite concentration in the composite the total number of established polymer-zeolite interactions increases, as does the spatial irregularity of the polymer network, but that the density of the interactions decreases. This could be the most probably explanation for the changes in the characteristics of the composite with changing zeolite concentration. |
| first_indexed | 2024-12-22T10:43:29Z |
| format | Article |
| id | doaj.art-99d2238d1bd44d91a5621816807fb26c |
| institution | Directory Open Access Journal |
| issn | 0352-5139 |
| language | English |
| last_indexed | 2024-12-22T10:43:29Z |
| publishDate | 2000-03-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-99d2238d1bd44d91a5621816807fb26c2022-12-21T18:28:59ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51392000-03-01653173179An investigation of the effects of a silicalite type zeolite on PDMS-compositesBORIVOJ ADNADJEVICJELENA JOVANOVICThe aim of this paper was to investigate the effect of a silicalite type zeolite on PDMS-zeolite composites. The obtained results show that the introduction of a silicalite type zeolite into polysiloxane matrices results in a change of the equilibrium degree of swelling of the composites in toluene, their hardness and their thermal stability. With increasing amount of zeolite, the time required to achieve the equilibrium degree of swelling (DSe) is reduced, the DSe decreases and the hardness increases. Two ranges of the effect of the zeolite concentration on the composite characteristics were noted. At zeolite concentrations up to about 12 % there are significant changes of the DSe and the hardness with zeolite concentration, while these effects are considerably less pronounced at higher concentrations. The results obtained show that the silicalite type zeolite acts as a reinforcing filler. We believe that with increasing zeolite concentration in the composite the total number of established polymer-zeolite interactions increases, as does the spatial irregularity of the polymer network, but that the density of the interactions decreases. This could be the most probably explanation for the changes in the characteristics of the composite with changing zeolite concentration.http://www.shd.org.yu/HtDocs/SHD/Vol65/No3-Pdf/V65-No3-04.zipPDMS-compositesilicalite type zeolitedegree of swellinghardnessthermal stability |
| spellingShingle | BORIVOJ ADNADJEVIC JELENA JOVANOVIC An investigation of the effects of a silicalite type zeolite on PDMS-composites Journal of the Serbian Chemical Society PDMS-composite silicalite type zeolite degree of swelling hardness thermal stability |
| title | An investigation of the effects of a silicalite type zeolite on PDMS-composites |
| title_full | An investigation of the effects of a silicalite type zeolite on PDMS-composites |
| title_fullStr | An investigation of the effects of a silicalite type zeolite on PDMS-composites |
| title_full_unstemmed | An investigation of the effects of a silicalite type zeolite on PDMS-composites |
| title_short | An investigation of the effects of a silicalite type zeolite on PDMS-composites |
| title_sort | investigation of the effects of a silicalite type zeolite on pdms composites |
| topic | PDMS-composite silicalite type zeolite degree of swelling hardness thermal stability |
| url | http://www.shd.org.yu/HtDocs/SHD/Vol65/No3-Pdf/V65-No3-04.zip |
| work_keys_str_mv | AT borivojadnadjevic aninvestigationoftheeffectsofasilicalitetypezeoliteonpdmscomposites AT jelenajovanovic aninvestigationoftheeffectsofasilicalitetypezeoliteonpdmscomposites AT borivojadnadjevic investigationoftheeffectsofasilicalitetypezeoliteonpdmscomposites AT jelenajovanovic investigationoftheeffectsofasilicalitetypezeoliteonpdmscomposites |