بررسی تأثیر مقدار الیاف چوب درخت انگور و زمان پرس بر خواص کاربردی و زبری سطح تخته‌‌فیبر دانسیتة متوسط

نوع مقاله: مقاله پژوهشی

نویسندگان

1 کارشناس ارشد، گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

2 استاد گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

3 استادیار گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

4 استاد دانشکدة فنی مهندسی، دانشگاه تهران، تهران، ایران

چکیده

در این تحقیق استفاده از الیاف چوب درخت انگور به صورت مخلوط با الیاف گونه‌های چوبی در ساخت تخته‌فیبر دانسیتة متوسط بررسی شد. زمان پرس در سه سطح 4 و 5 و 6 دقیقه و نسبت اختلاط الیاف چوب درخت انگور با الیاف چوب‌های جنگلی در سه سطح 0/100 و 30/70 و 60/40، به منزلة عوامل متغیر، بود. تخته‌ها به صورت همسان با دانسیتة 65/0 گرم بر سانتی‌متر مکعب و ضخامت 15 میلی‌متر ساخته شدند. زبری سطح و ویژگی‌های فیزیکی و مکانیکی تخته‌ها شامل مقاومت خمشی (MOR) و واکشیدگی ضخامت (TS) بررسی شد. نتایج نشان داد با افزایش مقدار الیاف چوب مو تا میزان 30 درصد زبری سطح و واکشیدگی ضخامت تخته‌ها افزایش می‌یابد؛ ولی با افزایش مقدار این الیاف تا 60 درصد این دو ویژگی کاهش پیدا می‌کند. مقاومت خمشی تخته‌ها با افزایش میزان الیاف چوب مو تا میزان 60 درصد کاهش یافت. افزایش زمان پرس تأثیر معناداری بر زبری سطح و ویژگی‌های فیزیکی و مکانیکی تخته‌ها نداشت.

کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Vine Pruning Fibers Content and Press Time on some Functional Properties and Surface Roughness of Medium Density Fiberboard (MDF)

نویسندگان [English]

  • fatemeh rezaee 1
  • Ali Akbar Enayati 2
  • Mohammad Layeghi 3
  • Hmaidreza Ghasemi Monfared Rad 4
1 M.Sc. Graduate, Faculty of Natural Resources, University of Tehran, Karaj, I.R. Iran
2 Professor, Faculty of Natural Resources, University of Tehran, Karaj, I.R. Iran
3 Assistant Professor, Faculty of Natural Resources, University of Tehran, Karaj, I.R. Iran
4 Professor, Faculty of Engineering, University of Tehran, Tehran, I.R. Iran
چکیده [English]

In this research the possibility of vine pruning fibers in combination with wood fibers was studied in order to fabricate medium density fiberboard. Vine pruning fibers content in three levels of 0/100, 30/70 and 60/40 (weight percent) and press time in three levels of 4, 5 and 6 minutes were as variable factors. One layer panels with a density of 0.65 g/cm3 and thickness of 15 mm were made. The physical and mechanical properties of panels including modulus of rupture (MOR), thickness swelling (TS) as well as surface roughness (Ra, Rz, and Rq) were measured. Results showed that with increasing of vine pruning fibers up to 30%, surface roughness and TS of panels increased and then decreased when the vine pruning fibers increased up to 60% fibers. MOR was reduced with increasing of vine pruning fibers up to 60%. Increasing press time had no significant effect on surface roughness and the physical and mechanical properties of panels.

کلیدواژه‌ها [English]

  • Vine pruning fibers
  • medium density fiberboard (MDF)
  • Surface Roughness
  • press time
 

[1]. Doosthoseini, K. (2007). Wood Composite Materials Manufacturing, Applications. University of Tehran Press, Tehran.

[3]. Doosthoseini, K. and Abdolzadeh, H. (2010). Investigation on the feasibility of utilization wood and OCC fiber on the surface layer of particleboard and their effects on surface hardness and roughness. Iranian Journal of Wood and Paper Science Research, 25(1): 62-69.

[4]. Ozdimer, T., Hiziroglu, S., and Malkocoglu, A. (2009). Influence of relative humidity on surface quality and adhesion strength of coated medium density fiberboard (MDF) panels. Materials and Design, 30: 2543-2546.

[5]. Kilic, M., Burdurlu, E., Aslan S., Altun S., and Tumerdem, O. (2009). The effect of surface roughness on tensile strength of the medium density fiberboard (MDF) overlaid with polyvinyl choloride (PVC). Material and Design, 30: 4580-4583.

[6]. Hiziroglu, S. and Suzuki, S. (2007). Evaluation of surface roughness of commercially manufactured particleboard and medium density fiberboard in Japan. Journal of Materials Processing Technology, 184: 436-440.

[7]. Hiziroglu, S. and Kosonkorn, P. (2006). Evaluation of surface roughness of Thai medium density fiberboard (MDF). Building and Environment, 41: 527-533.

[8]. Akbulute, T. and Ayrilmis, N. (2006). Effect of compression wood on surface roughness and surface absorption of medium density fiberboard. Silva Fennica, 40(1): 161-167.

[9]. Roller, A. and Roffael, E. (2007). Influence of different climatic conditions on the roughness of uncoated medium density fiberboard (MDF). Holz Roh Werkst, 65: 239-244.

[10]. Ayrilmis, N. and Winandy, J. E. (2009). Effects of post heat– treatment on surface characteristics and adhesive bonding performance of medium density fiberboard. Materials and Manufacturing Processes, 24: 594-599.

[11]. Akrami, A., Doosthoseini, K., Faezipour, M., and Jahan Latibari, A. (2011). The Effect of paraffin addition and pressing conditions on some properties of medium density fiberboard (MDF) with emphasis on surface roughness. Journal of Forest andWood Products, 63(4): 343-353.

[12]. Kuo, M., Adams D., Mayers D., and Curry, D. (1998). Properties of wood/agricultural fiberboard bonded with soybean-based adhesive. Forest ProductJournal, 48 (2): 71-75.

[13]. Philip Ye, X., Julson, J., Kuo, M., Womac, A., and Myers, D. (2007). Properties of medium density fiberboard made from renewable biomass. Bioresource Technology, 98: 1077-1084.

[14]. Karimi, F., Enayati, A., Faezipour, M., and Doosthoseini, K. (2012). A Study on physical and mechanical properties of medium-density fiberboard (MDF) made from corn stalk and wood fibers. Iranian Journal of Wood and Paper Industries, 2(2): 39-52.

[15]. European Standard EN 326-1. (1993). Wood-based Panels. Sampling, cutting and inspection. Sampling and cutting of test pieces and expression of test results.

[16]. European Standard EN 317. (1993). Wood-based Panel. Determination of Swelling in thickness after immersion in water. CEN European Committee for standardization.

[17]. European Standard EN 310: Wood-based Panel. (1993). Determination of modulus of elasticity in bending and of bending strength. CEN European Committee for standardization.

[18]. DIN 4777: Metrology of surfaces. (1990). Profile filter for electrical contact stylus instruments; phasecorrected filters.

[19]. Akgul, M. and Tozluoglu, A. (2008). Utilizing peanut husk (Arachis hypogaea L.) in the manufacture of medium density fiberboards. Bioresource Technology, 99(13): 5590-5594.

[20]. Copur, Y., Guler C., Tascioglu C., and Tozluglu, C. (2008). In corporation of hazelnut shell and husk in MDF production. Bioresource Technology, 99: 7402-7406.

[21]. Han, G., Umcmun, k., Zhang, M., Honda, T., and Kawai, S. (2001). Development of high performance uf-bonded reed and wheat straw medium density fiberboard. Journal Wood Science, 47: 350-355.

[22]. Nemli, G., Ozturk, I., and Aydin, I. (2005). Some of the parameters influencing surface roughness of particleboard. Building and Environment, 40: 1337-1340.