THE EFFECT OF MULTIPLE PROCESSING OF POLYPROPYLENE ON SELECTED PROPERTIES OF INJECTION MOULDED PARTS
			
	
 
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				1
				Lublin University of Technology, Department of Polymer Processing, Nadbystrzycka 36, 20-618 Lublin, Poland
				 
			 
						
				2
				Technical University of Kosice, Katedra strojárskych technológií a materiálov, Mäsiarska 74, 040 01 Košice, Slovakia
				 
			 
										
				
				
		
		 
			
			
		
		
		
		
		
			
			 
			Data publikacji: 01-12-2016
			 
		 			
		 
	
							
					    		
    			 
    			
    				    					Autor do korespondencji
    					    				    				
    					Karolina  Głogowska   
    					Lublin University of Technology, Department of Polymer Processing, Nadbystrzycka 36, 20-618 Lublin, Poland
    				
 
    			
				 
    			 
    		 		
			
																	 
		
	 
		
 
 
Adv. Sci. Technol. Res. J. 2016; 10(32):65-72
		
 
 
SŁOWA KLUCZOWE
DZIEDZINY
STRESZCZENIE
An injection moulding machine was used to produce injection moulded parts from polypropylene under invariant injection moulding conditions. Part of the injection mouldings were shredded and re-processed up to fifteen times. The mouldings and the shredded plastic were tested for selected strength properties: Young's modulus, maximum tensile stress, breaking stress, strain at maximum stress, strain at break, Shore hardness, impact strength, mass flow rate, and longitudinal and transverse shrinkage. Relevant relationships were identified and conclusions were drawn on the basis of the data obtained.