FATİH BALIKOĞLU, TAYFUR KEREM DEMİRCİOĞLU, Akın ATAŞ, SEDA BEYAZ, NURETTİN ARSLAN

Termoset Matrisli Cam Elyaf Takviyeli Polimer (CTP) Atıkların Mekanik Geri Dönüşüm Ürünlerinin Sıcak Pres Kalıplama Bileşiminde (BMC) Tekrar Değerlendirilmesi

Bu çalışmada, termoset esaslı cam elyaf takviyeli polimer (CTP) plakaların mekanik geri kazanımı işlemi ve tekrar kullanımı araştırılmıştır. Geri dönüşüm ürünleri kütlesel olarak % 4, 8, 12, 16 oranlarında sıcak pres kalıplama bileşiminde (BMC) orijinal fiberlerin yerine kullanılmıştır. Geri dönüşüm cam fiber içeren numunelerin çekme test sonuçlarındaki düşme miktarı, orijinal numuneler ile karşılaştırıldığında %5’in altında kalmıştır. %4 geri dönüşüm içeren numunenin en düşük eğilme dayanımına sahip olduğu gözlenmiştir. Kütlece % 8, 12, 16 geri dönüşüm takviyeli numunelerin eğilme test sonuçları ise, %100 orijinal cam fiber içeren numuneler ile kıyaslandığında eğilme özelliklerinde düşme miktarları %10 civarında belirlenmiştir. %4 geri dönüşüm içeren numune dışında tüm numuneler kabul edilebilir mekanik performans göstermiştir.

Re-use of Mechanically Recycled of Thermoset Glass Fiber Reinforced Polymer (GFRP) Waste in Bulk Moulding Compound (BMC)

In the present research, mechanical recycling and re-use of thermoset glass fiber reinforced polymer (GFRP) plates were investigated. Recyclate materials were used by 4, 8, 12, and 16 percent in weight instead of the virgin fibers in the BMC dough. The amount of reduction in the values of tensile test results of samples containing recyclate materials remained less than 5% of the virgin fiber reinforced sample results. The samples with 4% recyclate materials had the lowest bending strength. The reduction of bending properties of the samples including 8, 12, 16% recyclates was found be approximately 10% of the results of the virgin fiber reinforced samples. All samples except for samples containing 4% wt of recyclates exhibited acceptable mechanical performance.

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Asmatulu, E., Twomey, J., Overcash, M. 2014. Recycling of fiber-reinforced composites and direct structural composite recycling concept. J. of Comp. Mat. 48(5): 593-608.
Bledzki, A. K., Kurek, K., & Barth, C. H. 1992. Development of a thermoset part with SMC reclaim. ANTEC 92-Shaping the Future Conference, 1:1558-1560.
Bledzki, A. K., Goracy, K. 1994. The use of recycled fibre composites as reinforcement for thermoset. Mech. of Comp. Mat., 29(4):352-356.
Conroy, A., Halliwell, S., Reynolds, T. 2006. Composite recycling in the construction industry. Comp. Part A, 37:1216–1222.
Derosa, R., Telfeyan, E. 2005a. Current State of Recycling Sheet Molding Compounds and Related Materials. J. of Thermoplas. Comp. Mat., 18(3):219-240.
Derosa, R., Telfeyan, E., Gaustad, G., Mayes, S. 2005b. Strength and Microscopic Investigation of Unsaturated Polyester BMC Reinforced with SMC-Recyclate. J. of Thermoplas. Comp. Mat., 18(4): 333-349.
DeRosa, R., Telfeyan, E., Gaustad, G., Mayes, S. 2003. Understanding issues associated with using fiber length SMC recyclate in bulk molding compounds with the aim of improving their strengths. Technical papers-society of manufacturing engineers-all series.
Directive 2000/53/EC on end-of-life vehicles. Offical J. of the EU, L 269/34, 21.10.2000.
Inoh, T., Yokoi, T., Sekiyama, K. I., Kawamura, N., Mishima, Y. 1994. SMC Recycling Technology. J. Thermoplas. Comp. 7(1): 42–55.
ISO 178 2010. Plastics, Determination of flexural properties.
ISO 527-4 1997. Plastics, Determination of tensile properties, Test conditions for isotropic and orthotropic fibre-reinforced plastic composites.
Jutte, R.B. and Graham, W.D. 1991. Recycling SMC Scrap as Reinforcement, Plast. Eng., 47(5): 13–46.
McKechnie, D., Wegman, T. ECRC heads search for composites recycling solutions, Reinforced plastics, available online in Reinforced plastics.com http://www.reinforcedplastics.com/ view/1089/ecrc-heads-search-for-composites-recyclingsolutions/ (accessed 02.03.2017).
Miller, F. A., Wilkins, C. H. 1952. Infrared Spectra and Characteristic Frequencies of Inorganic Ions. Analy. Chem., 24 (8):1253-1294.
Paksoy, K., Delican, C. 2016. Türk Kompozit Sektörü 2015 Yılı Değerlendirmesi ve 2016 Yılı Beklentileri. Comp. Turk. Derg., Sayı:12: 38-41.
Palmer, J., Ghita, O. R., Savage, L., Evans, K. E. 2009. Successful closed-loop recycling of thermoset composites. Comp. Part A, 40:490–498.
Palmer, J. 2009. Mechanical Recycling of Automotive Composites for Use as Reinforcement in Thermoset Composites (PhD Thesis), University of Exeter, May.
Palmer, J., Savage, L., Ghita, O.R., Evans, K.E. 2010. Sheet molding compound (SMC) from carbon fibre recyclate. Comp. Part A: Applied Science and Manufacturing, 41(9):1232-1237.
Papadakis, N. 2010. Designing composite wind turbine blades disposal recycling and reuse, in: V. Goodship (Ed.), Management, Recycling and Reuse of Waste Composites, WP and CRC Press, Cambridge, UK, 443–457. ISBN 978184569462.
Petterson, J. And Nilsson, P. 1994. Recycling of SMC and BMC in Standard Processing Equipment. J. Thermoplas. Compos. 7(1): 56–63.
Pickering, S. J. 2006. Recycling technologies for thermoset composite materials current status. Comp. Part A, 37:1206– 1215.
Reynolds, N. Pharaoh, M. 2010. An introduction to composites recycling. In Management, Recycling and Reuse of Waste Composites; Goodship, V., Ed.; Woodhead Publishing: Cambridge, UK, 3–19.
Rouholamin, D., Shyng, Y.T., Savage, L., Ghita, O. 2014. A comparative study into mechanical performance of glass fibres recovered through mechanical grinding and high voltage pulse power fragmentation, ECCM16 - 16 th. European conference on composite materials, Seville, Spain, 22-26.
Stuart, B. 2004. Infrared Spectroscopy: Fundamentals and Applications. John Wiley & Sons, Ltd.
Tittarelli, F. 2013. Effect of low dosages of waste GRP dust on fresh and hardened properties of mortars: Part 2. Const. and Build. Mat., 47:1539-1543.
Yang, Y., Boom, R., Irion, B., Heerden, D., Kuiper, P., Wit, H. 2012. Recycling of composite materials. Chem. Eng. and Process., 51:53–68.
Yazdanbakhsh, A. Bank, L.C. 2014. A Critical Review of Research on Reuse of Mechanically Recycled FRP Production and End-of-Life Waste for Construction. Polymers,6:1810-1826.