The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites
The effect of various modifications/intercalations of halloysite and the combination of these modifications with in situ PP matrix modification was investigated with respect to the structure and properties of the polypropylene/halloysite nanocomposites. Hexadecyl-tri-methyl-ammonium-bromide (HEDA),...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2013-05-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0004203&mi=cd |
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| author | V. Khunova J. Kristof I. Kelnar J. Dybal |
| author_facet | V. Khunova J. Kristof I. Kelnar J. Dybal |
| author_sort | V. Khunova |
| collection | DOAJ |
| description | The effect of various modifications/intercalations of halloysite and the combination of these modifications with in situ PP matrix modification was investigated with respect to the structure and properties of the polypropylene/halloysite nanocomposites. Hexadecyl-tri-methyl-ammonium-bromide (HEDA), 3-aminopropyltrimethoxysilane and urea were used as the intercalators/modifiers. The best intercalation was found for urea, although an unexpected insignificant impact on the mechanical properties also resulted as a consequence of the urea polarity and the significant decrease in PP crystallinity. However, the simultaneous application of 4,4!-diphenylmethylene dimaleinimide (DBMI) brought about an increase in the mechanical behavior by increasing the halloysite/PP affinity as a result of in situ matrix modification. This effect was further supported by coupling between the PP and halloysite (HNT) in the system containing urea-intercalated HNT. This can be explained by the occurrence of a urea-supported reaction between the imide ring of DBMI and the OH groups of the HNT, which resulted in the best mechanical behaviors achieved in this study. |
| format | Article |
| id | doaj-art-c2e79ae47d7c4a3aa01690c09c6944a6 |
| institution | DOAJ |
| issn | 1788-618X |
| language | English |
| publishDate | 2013-05-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-c2e79ae47d7c4a3aa01690c09c6944a62025-08-20T03:20:30ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2013-05-017547147910.3144/expresspolymlett.2013.43The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocompositesV. KhunovaJ. KristofI. KelnarJ. DybalThe effect of various modifications/intercalations of halloysite and the combination of these modifications with in situ PP matrix modification was investigated with respect to the structure and properties of the polypropylene/halloysite nanocomposites. Hexadecyl-tri-methyl-ammonium-bromide (HEDA), 3-aminopropyltrimethoxysilane and urea were used as the intercalators/modifiers. The best intercalation was found for urea, although an unexpected insignificant impact on the mechanical properties also resulted as a consequence of the urea polarity and the significant decrease in PP crystallinity. However, the simultaneous application of 4,4!-diphenylmethylene dimaleinimide (DBMI) brought about an increase in the mechanical behavior by increasing the halloysite/PP affinity as a result of in situ matrix modification. This effect was further supported by coupling between the PP and halloysite (HNT) in the system containing urea-intercalated HNT. This can be explained by the occurrence of a urea-supported reaction between the imide ring of DBMI and the OH groups of the HNT, which resulted in the best mechanical behaviors achieved in this study.http://www.expresspolymlett.com/letolt.php?file=EPL-0004203&mi=cdNanocompositespolypropylenehalloysitemodification |
| spellingShingle | V. Khunova J. Kristof I. Kelnar J. Dybal The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites eXPRESS Polymer Letters Nanocomposites polypropylene halloysite modification |
| title | The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites |
| title_full | The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites |
| title_fullStr | The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites |
| title_full_unstemmed | The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites |
| title_short | The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites |
| title_sort | effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene halloysite nanocomposites |
| topic | Nanocomposites polypropylene halloysite modification |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0004203&mi=cd |
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