WITHDRAWAL STRENGTH OF FASTENERS IN RICE STRAW-HDPE COMPOSITES UNDER ALTERNATING WETTING STAGES

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MADHOUSHI M.; NADALIZADEH H.; KHAZAEIAN A.

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Journal: Journal of Forest and Wood Products Year:2012 | Volume:65 | Issue:2 Page(s): 211-220

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Title

WITHDRAWAL STRENGTH OF FASTENERS IN RICE STRAW-HDPE COMPOSITES UNDER ALTERNATING WETTING STAGES

Author(s)

MADHOUSHI M. | NADALIZADEH H. | KHAZAEIAN A. | Issue Writer Certificate

Keywords

RICE STRAWQ2

HIGH DENSITY POLYETHYLENEQ3

COMPOSITEQ2

NAILQ2

SCREWQ2

WETTINGQ2

Abstract

The withdrawal strength of NAIL and SCREW fasteners was studied in RICE STRAW fiber-thermoplastic COMPOSITEs. Virgin high-density polyethylene (HDPE) was selected as the COMPOSITE matrix. Three levels of dry RICE STRAW fiber, 45%, 60% and 75%, based on weight and passed through a 40-mesh size screen were mixed with the polymeric matrix without or with 2% (based on weight) maleic anhydride grafted polypropylene (MAPP) as coupling agent. A dry-blending method was used for compounding the materials. The 12 formulations for the polymer COMPOSITEs were used to prepare samples with dimensions of 25 cm by 15 cm by 1 cm. The final COMPOSITEs were made by pressing the prepared mats between the hot plates of a compression press by employing combinations of temperature and pressure in three stages. After keeping the COMPOSITEs at room temperature for 15 days, the withdrawal strengths of NAILs and SCREWs were measured according to BS Standard for dry COMPOSITEs. Withdrawal strengths were also measured after immersion of the COMPOSITEs for 24 hours in distilled water (wet condition) (cycle 1). WETTING for 24 hours followed by drying for 24 hours was then repeated for the other 3 cycles. The results showed that the withdrawal strength of SCREWs is more than that of NAILs. Also, RICE STRAW fiber content may significantly influence the withdrawal strength of fasteners, especially at higher fiber to polymer ratios. Furthermore, it was found that the coupling agent slightly affected the withdrawal strengths of the fasteners. The results also showed that withdrawal strength of fasteners are significantly reduced at more WETTING cycles.

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APA: Copy

MADHOUSHI, M., NADALIZADEH, H., & KHAZAEIAN, A.. (2012). WITHDRAWAL STRENGTH OF FASTENERS IN RICE STRAW-HDPE COMPOSITES UNDER ALTERNATING WETTING STAGES. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), 65(2), 211-220. SID. https://sid.ir/paper/162761/en

Vancouver: Copy

MADHOUSHI M., NADALIZADEH H., KHAZAEIAN A.. WITHDRAWAL STRENGTH OF FASTENERS IN RICE STRAW-HDPE COMPOSITES UNDER ALTERNATING WETTING STAGES. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2012;65(2):211-220. Available from: https://sid.ir/paper/162761/en

IEEE: Copy

M. MADHOUSHI, H. NADALIZADEH, and A. KHAZAEIAN, “WITHDRAWAL STRENGTH OF FASTENERS IN RICE STRAW-HDPE COMPOSITES UNDER ALTERNATING WETTING STAGES,” JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 65, no. 2, pp. 211–220, 2012, [Online]. Available: https://sid.ir/paper/162761/en

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