Farklı Yük ve Hızlarda Cam Elyaf Takviyeli Polyester Kompozit Malzemelerin Aşınması

Year 2018, Volume: 5 Issue: 1, 259 - 266, 31.01.2018

Erol Feyzullahoğlu İlhan Recep

https://doi.org/10.31202/ecjse.370504

Cited By: 4

Abstract

Polimer matrisli Cam Elyaf Takviyeli Polyester (CTP) konpozit malzemeler yüksek özgül mukavemet, mükemmel elastiklik, düşük ağırlık, yüksek korozyon direnci, yüksek kimyasal direnç ve yüksek termal kararlılık gibi bazı özelliklere sahiptirler. Makine parçalarının en önemli hasar sebeplerinden biri aşınmadır. Aşınma, malzemelerin yüzey kimyalarını ve mikroyapılarını değiştirerek azaltılabilen bir yüzey özelliğidir. Bu nedenle CTP malzemelerin sadece mekanik özellikleri değil, aynı zamanda tribolojik davranışları da araştırılmalıdır. Bu çalışmanın amacı farklı dolgu ve reçine malzemelerinin farklı yük ve hızlarda CTP malzemelerin adhezif aşınma özelliği üzerine etkisini incelemektir. Numunelerin üretimlerinde farklı reçineler (reaktif ortoftalik polyester), takviye malzemeleri ve dolgular (cam kürecik ve alumina) kullanılmıştır. Başlangıçta, numuneler 150m’lik sabit kayma mesafesinde iki farklı yükte (F=10N, F=20N) ve iki farklı hızda (n=100rpm, n=200rpm) adhezif aşınma deneylerine tabi tutuldu. Tribometre üzerinden test boyunca sürtünme kuvveti ve sürtünme katsayısı değerleri ölçülmüştür. Numunelerin yoğunlukları da ölçüldü. Bir sonraki adımda aşınma iz kalınlıkları ölçüldü ve aşınma oranları hesaplandı. Sonuçlarda, düz ortoftalik polyester reçineye cam kürecik ilavesi aşınma oranını düşürdüğü görüldü. Numunelerin aşınma davranışı üzerine yükün etkisi hızın etkisinden daha fazla olduğu tesbit edildi.

Keywords

Cam elyaf; polyester; dolgu malzemeleri; adhezif aşınma

The Wear of Glass Fiber Reinforced Polyester Composite Materials at Different Loads and Speeds

Abstract

Glass fiber reinforced polyester (GFRP) materials which are polymer matrix composites have some properties such as high specific strength, excellent elasticity, low weight, high corrosion resistance, high chemical resistance and high thermal stability. One of most important causes of failure of mechanical parts is wear. It is a surface property that can be reduced by changing the surface chemistries of the materials and microstructures. For this reason GFRP materials should be investigated not only for their mechanical properties but also for their tribological behaviours. The aim of this study is investigation of effects of different fillers and resins materials on adhesive wear properties of GFRP at different loads and speeds. In the sample production, different resins (reactive orthophtalic polyesters), reinforcing materials and fillers (glass beads, alumina) are used. . Initially, the samples were subjected to adhesive wear tests on two different loads (F=10N, F=20N) and two different speeds (n=100rpm, n=200rpm) at 150m sliding distance. The friction force and friction coefficient were measured during the test on tribometer. The densities of samples were measured. In the next step, the wear trace thicknesses were measured and the wear rates were calculated. In results, the addition of glass beads to plain orthophtalic polyester resin reduced wear rate. The influence of load effect on wear behavior of samples is more the influence of speed.

Keywords

Glass fiber; polyester; filler materials; adhesive wear

References

• [1] Pihtili, H., Tosun, N., “Investigation of the wear behaviour of a glass–fiber reinforced composite and plain polyester resin”. Compos Sci Technol, 2002, 62: 367–70.
• [2] El-Tayep, N.S., Gadelrap, R.M., “Friction and wear properties of Eglass fiber reinforced epoxy composites under different sliding contact conditions”, Wear, 1996, 192: 112 –17.
• [3] Collyer, A.A., “Rubber toughened engineering materials”, Chapman Hall, 1994.
• [4] Ramesh, R., Rao, Rmvgk., “Dry sliding wear studies in glass fiber reinforced epoxy composites”, Wear, 1983, 89: 131.
• [5] Fu, S.Y., Feng, X.Q., Lauke, B., Mai, Y.W., “Effects of particle size, particle/matrix interface adhesion and particle loading on mechanical properties of particulate– polymer composites”, Composites: Part B, 2008, 39: 933– 961.
• [6] Kurahatti, R.V., Surendranathan, A.O., Srivastava, S., Singh, N., Ramesh-Kumar, A.V., Suresha, B., “Role of zirconia filler on friction and dry sliding wear behaviour of bismaleimide nanocomposites”, Materials and Design, 2011, 32: 2644-2649.
• [7] Zhang, X.R., Pei, X.Q., Wanga, Q.H., “Friction and wear studies of polyimide composites filled with short carbon fibers and graphite and micro SiO2”, Materials and Design, 2009, 30: 4414–4420.
• [8] Karataşoğlu, F., “Investigation of the wear behaviour of worn solid railway wheels after filling with different composition of filler metals using MIG-MAG welding methods”, MSc Thesis, Gazi Universty, Institute of Science and Technology, 1997.
• [9] Iordanova, I., Surtchev, M., Forcey, K.S., “Metallographic and SEM investigation of the thermally sprayed coatings on steel substrate”, Surf Coat Technol, 2001, 139: 118-126.
• [10] Yamamoto, T., Buckley, D.H., “Wear Mechanism Based on Adhesion”, NASA Thechnical Paper 2037. Cleveland: NASA; 1982. http://www.tribonet.org/wiki/adhesive-wear
• [11] Srinivasan, V., Mohammad, M., Karthikeyan, R., “Charecterisitcs of Al2O3 Nano-Particled Filled GFRP Composites Using Wear Maps”. Journal of Reinforced and Composites, 2010, 29: 3006-3015.
• [12] Pihtili, H., “An experimental investigation of wear of glass fibre-epoxy resin and glass fibre-polyester resin composite materials”, European Polymer Journal, 2009, 45: 149-154.
• [13] Singh, A.K., Siddhartha, D., “Assessment of mechanical and three-body abrasive wear peculiarity of TiO2- and ZnO-filled bi-directional E-glass fibre-based polyester composites”, Bulletin of Material Science, 2016, 39: 971-988.
• [14] Suresha, B., Chandramohan, G., Samapthkumaran, P., Seetharamu, S., “Three-body abrasive wear behaviour of carbon and glass fiber reinforced epoxy composites”, Material Science and Engineering, 2007, 443: 285-291.
• [15] Yanbao, G., Zhiqiang, C., Deguo, W., Shuhai, L., “Improving the friction and abrasion properties of nitrile rubber hybrid with hollow glass beads”, Tribology International, 2016, 101: 122-130.
• [16] Gupta, N., Maharsia, R., Jerro, H.D., “Enhancement of energy absorption characteristics of hollow glass particle filled composites by rubber addition”, Mater Sci Eng A, 2005, 395: 233–40.
• [17] Navarro, C.H., Moreno, K.J., Arizmendi-Morquecho, A., Chavez-Valdez, A., Garcia-Miranda, S., “Preparation and tribological properties of chitosan/hydroxyapatite composite coatings applied on ultra high molecular weight polyethylene substrate”, Journal of Plastic Film and Sheeting, 2012, 28: 279-297.
• [18] Aguilera-Camacho, L.D., Hemandez-Navarro, C., Moreno, K.J., Garcia-Miranda, J.S., Arizmendi-Morquecho, A., “Improvement effects of Cao nanoparticles on tribological and microhardness properties of PMMA coating”, Journal of Coatings Technology and Research, 2015, 12: 347-355.