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Effect of poly (ethylene-co-vinyl acetate) grade on water resistanceand mechanical properties of particleboard |
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| รหัสดีโอไอ | |
| Creator | 1. Salwanee Waelaeh 2. Varaporn Tanrattanakul 3. Kittisak Poolyarat 4. Pimpatima Hamaphat 5. Kittitat Junnam |
| Title | Effect of poly (ethylene-co-vinyl acetate) grade on water resistanceand mechanical properties of particleboard |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2561 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 40 |
| Journal No. | 5 |
| Page no. | 1026-1033, |
| Keyword | particleboard, poly(ethylene-co-vinyl acetate), thickness swelling, water absorption, mechanical properties |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | Three-layer particleboard was prepared in the laboratory using a similar composition and processing condition to thoseused in the plant production of particleboard. Poly(ethylene-co-vinyl acetate) (EVA) was mixed with natural rubber-woodparticles in the core layer to reduce the water resistance of the particleboard. The properties of three EVA grades with vinylacetate contents of 19%, 22%, and 28% were melt indexes of 530, 1.8, and 6.8 g/10 min, melting temperatures of 84, 86, and 75?C, and molecular weights of 29000, 68000, and 61000 g/mol, respectively. The addition of 5% EVA significantly decreased thethickness swelling and water absorption properties of the particleboard. The mechanical properties of the particleboard that weredetermined were the modulus of rupture, modulus of elasticity, internal bond strength, and screw holding force. A statisticalanalysis of the data showed that the addition of 5% EVA did not deteriorate the mechanical properties. EVA22 seemed to be theoptimal grade. |
