Ailyari Boroujeni, Hadi (2015) Effect of isocyanate, maleic anhydride polypropylene and amplifiers as nano silica, nano-clay on the physical and mechanical properties of wood plastic composite. Masters thesis, University of Zabol.
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Abstract
The aim of this study was to evaluate the effect of MAPP and Isocyanat coupling agents Nanosilica and Nano-clay Patrick's on physical and mechanical properties of wood-plastic composites flour and high density Polyethylene. For this purpose the wood flour and PE with a weight ratios of 50 to 50, MAPP and Isocyanat, two levels, and 3% Nano-clay and Nanosilica at 3 levels (0, 2, 4%) were mixed in the extruder at 70 rpm under 160 degrees Celsius.The test samples, by using of injection molding method, were made according to ASTM for mechanical testing (bending strength, flexural modulus, tensile strength, tensile modulus, Impact strength) and physical testing (water absorption and thickness swelling). Also the evaluation of existence of significant difference between the treatments were done using Ovial test in completely randomized design and for comparing the means, the Puncan test, in level of yes, was used. The results showed that all the mechanical strength of wood-plastic composites increased by MAPP Compatibilizer; while the physical properties of composites improved in the presence of isocyanides Compatibilizer and mechanical properties improved by increasing the amount of Nanosilica and Nanoclay. Water absorption increased by the increase of Nano-silica as well as water absorption decreases with increasing Nano-clay and then thickness swelling declined in both Nano. The composite structural studies with X-ray diffraction showed that Nano clay was distributed as inter collation structure in polymer matrix and the distance between the layers improved by increasing clay Nanoparticles. Also, in the high levels of silica nanoparticles, particle collection occur and the crystal size increases.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Wood Polymer Composites, Isocyanate, maleic anhydride polypropylene, nano silica, nano clay |
| Subjects: | T Technology > TS Manufactures |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 23 May 2016 06:16 |
| Last Modified: | 23 May 2016 06:16 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/624 |
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