Silika ile kuşelenmiş atık kâğıtların plastik kompozit üretiminde değerlendirilmesi

Öz

Bu çalışmada silika ile kaplanmış atık kağıt liflerinin dolgu maddesi olarak polietilen kompozit içerisinde değerlendirilebilme olanakları araştırılmıştır. Lif plastik kompozitlerin fiziksel, termal ve bazı mekanik özellikleri üzerine atık kağıtların içeriğinde bulunan silika kuşe tabakasının etkileri incelenmiştir. Bu kapsamda yüksek yoğunluklu polietilen (YYPE) içerisine % 40 oranında mineral içermeyen saf selüloz lifleri ile farklı oranlarda mineral içeren selüloz lifleri eklenmiştir. Kompozit levhaların içeriğinde yer alan mineral miktarı (SiO2-CaCO3) yaklaşık %0, %2.67, %4.95, %7.28 ve %9.73 civarında hesaplanmıştır. Silika ve dolgu maddesi miktarının artması ile plastik kompozitlerin su alma ve kalınlığına şişme değerlerinde önemli miktarda azalma meydana gelmiştir. Termal özelliklerinde ise kısıtlı bir artış olmuştur. Ayrıca kullanılan lifler ve üretilen kompozit örnekleri FTIR-ATR ve SEM-EDS ile karakterize edilmiştir.

Anahtar Kelimeler

• Silika,Atık kağıt lifi,Yüksek yoğunluklu polietilen,Plastik kompozit

Utilization of silica coated waste paper fibre in plastic composite production

Öz

In this study, utilization of silica coated waste paper fibers as filler in high density polyethylene matrix were investigated. The effects of silica coating pigment in paper on physical, thermal and some mechanical properties of cellulose fiber-plastic composite were examined. The filler used in this study were uncoated cellulose, 6.68%, 12.38%, 18.21% and 24.32% mineral contented cellulose fibers. Each filler type was mixed with high density polyethylene (HDPE) at 40% by weight fiber loading. In this case, the ratio of SiO2-CaCO3 in plastic composites were calculated as 0%, 2.67%, 4.95%, 7.28% and 9.73% respectively. Water absorption and thickness swelling of fiber-plastic composites were significantly decreased with the silica and filler concentrations. With increased mineral content, thermal properties of fiber-plastic composites increased slightly. In addition, fibers and fiber-plastic composites were characterized with FTIR-ATR and SEM-EDS.

Anahtar Kelimeler

• Silica,Waste paper fiber,High density polyethylene,Plastic composite

Kaynakça

1. Ardekani SM, Dehghani A, Al-Maadeed MA, Wahit MU, Hassan A (2014) Mechanical and thermal properties of recycled poly(ethylene terephthalate) reinforced newspaper fiber composites. Fibers and Polymers (15):71531-1538
2. Ashori A, Nourbakhsh A (2009) Mechanical behavior of agro-residue-reinforced polypropylene composites. Journal of Applied Polymer Science 111(5):2616–2620
3. Banga H, Singh VK, Choudhary SK (2015) Fabrication and study of mechanical properties of bamboo fibre reinforced bio-composites. Innovative System Desing and Enginnering 6(1):84-98
4. Bledzki AK, Reihmane S, Gassan J (1998) Thermoplastics reinforced with wood fillers: A literature review. Polymer-Plastics Technology and Engineering 37(4):451-468
5. English B, Stark N, Clemans C (1997) Weight reduction: wood versus mineral filler in PP. 4th International Conference on Woodfiber-Plastic Composites, Madison, WI: Forest Products Society, 324, pp 237-244
6. Faisal A, Salmah H (2012) Mechanical and thermal properties of compatibilized waste office white paper-filled low-density polyethylene composites. Journal of Thermoplastic Composite Materials 25(2):193-207
7. Godara A, Raabe D, Bergmann I, Putz R, Müller U (2009) Influence of additives on the global mechanical behavior and the microscopic strain localization in wood reinforced polypropylene composites during tensile deformation investigated using digital image correlation. Composite Science and Technology 69:139-146
8. Hadal RS, Dasari A, Rohrmann J, Misra RDK (2004) Effect of wollastonite and talc on the micromechanisms of tensile deformation in polypropylene composites. Materials Science and Engineering A 372(2):296-315

9. Hagemeyer RW (1997) Pigments for Paper. Tappi Press, Atlanta, Georgia
10. Huuhilo T, Martikka O, Butylina S, Kӓrki T (2010a) Impact of mineral fillers to the moisture resistance of wood-plastic composites. Baltıc Forestry 16(1):126-131
11. Huuhilo T, Martikka O, Butylina S, Kӓrki T (2010b) Mineral fillers for wood–plastic composites. Wood Material Science & Engineering 5(1):34-40
12. Ismail SH, Bakar AA (2006) Effects of chemical modification of paper Sludge filled Polypropylene (PP)/Ethylene propylene diene terpolymer (EPDM) composites. Journal of Reinforced Plastics and Composites 25(1):43-58
13. Martikka O, Huuhilo T, Butylina S, Kärki T (2010) The effect of mineral fillers on the thermal properties of wood-plastic composites. Wood Material Science & Engineering 7(2):107-114
14. Mitchell J, Vandeperre L, Dvorak R, Kosior E, Tarverdi K, Cheeseman C (2014) Recycling disposable cups into paper plastic composites. Waste Management 34(11):2113–2119
15. Panigrahy BS, Rana A, Chang P, Panigrahi S (2006) Overview of flax fiber reinforced thermoplastic composites. Canadian Biosystems Engineering Journal 06(165):1–12
16. Paulapuro H, (2000) Papermaking science and technology: Book 18. Paper and board grades. Jyväskylä, Fapet Oy, Helsinki
17. Sherman LM (2004) Wood-filled plastic they need the right additives for strength, good looks and long life. Plastic Technology 6(6):52-59
18. Souchy J, Koubaa A, Migneault S, Riedl B (2014) The potential of paper mill sludge for wood-plastic composites. Industrial Crops and Products (54):248–256