Volume 6, Issue 23 (2009)                   FSCT 2009, 6(23): 43-49 | Back to browse issues page

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Mechanical combined recycling of PET & PE & PS and PP used in packaging industries for manufacturing isolating panel and assessment of compressive strength Ghambarzade Alamdari, Z. 1*, Khavanin, A. 2, Kokabi, M.3. FSCT 2009; 6 (23) :43-49
URL: http://fsct.modares.ac.ir/article-7-1683-en.html
Abstract:   (5514 Views)
Today polymeric materials dueto suitable strength against mechanical impacts and also economical benefit as compaired with other packaging materials has been specific situation in more industries, also at present use of such material day to day are developing . One of the impacts which occur dueto use of plastics  material on the society and environment , is non decomposition of them , that cause to appear environmental problems.One of the this investigation targets is access to economical method to recycling of plastics packging material to produce best worthy material than traditional recycling methods . In this study to manufacturing samples , we use PET & PE & PP and PS packaging material from one of mass production plastics industries , after grinding , with mesh size 1 to 5 mm and also 6 to 20 mm with equally 25 wt . % . and also use polyester fiber with 2.5 wt.% and polyvinyl acetate was used as the composite binder added with 20 wt.% , for preparing  final mixture , mentioned materials in three times separately in three stage mixed and was moulded in three series mould of 1/1 ratio : diameter / length of cylinders . After preparing of samples , samples tested with INSTRON -6027  Type instrument with 20 mm / Min speed of pressing plate . The result of determination of compressive strength of samples has shown that 1 to 5 mm particle mesh size indicated that the mean of variation of sample length due to compress at5,10,15,20,25,30,35and40 mm was ,  with arrangements 761,1524,2254,3265,4719,6924,10352 and 15827 N .Also the result of determination of compressive strength of samples has shown that 6 to 20 mm particle mesh size indicated that the mean of variation of sample length due to compress at5, 10,15, 20 ,25, 30,35 and 40 mm was ,  with arrangements 160,270,407,603,927,1575,3233,and 8777 N , has needed load force for compression. Also as compared the mean of compressive force load samples with 1 to 5 mm mesh size has needed more compressive load / N  with arrangement of 81.9 , 81.3, 77.3 and 44.5 % as compared with samples that manufacture with 6 to 20 mm mesh size particle . Also results of t-test for compairing means showned that mean difference with α=0.05 for samples that made with particle size 1 to 5 mm and 6 to 20 mm / mesh size  variation in two groups samples length and  needed compressive load  was significant .    
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Received: 2008/06/19 | Accepted: 2009/02/18 | Published: 2009/11/22

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