Tensile Impact Strength of Blends of High-Density Polyethylene and Acrylonitrile-Butadiene-Rubber: Effect of Blend Ratio and Compatibilization

1995 ◽  
Vol 34 (4) ◽  
pp. 561-579 ◽  
Author(s):  
Josephine George ◽  
L. Prasannakumari ◽  
Peter Koshy ◽  
K. T. Varughese ◽  
Sabu Thomas
2015 ◽  
Vol 754-755 ◽  
pp. 201-204
Author(s):  
Ragunathan Santiagoo ◽  
Sam Sung Ting ◽  
Azlinda Abdul Ghani ◽  
Hanafi Ismail ◽  
Awiezan Mislan

The compatibilizer effect of ENR-50 on the tensile properties of high density polyethylene (HDPE)/recycled acrylonitrile butadiene rubber (NBRr)/banana skin powder (BSP)/ composites has been studies. HDPE/NBRr/BSP composites were prepared by melt mixing technique using twin-screw at 180 °C for 9 minutes at rotor speed 50 rpm. The six different composites studied were 100/0/5, 80/20/5, 70/30/5, 60/40/5, 50/50/5, and 40/60/5. As for compatibilized composite a fix 5 wt% of ENR-50 was evaluated. The specimens were analysed for tensile strength and elongation at break (Eb). The results showed that tensile strength and the elongation at break were decreases with the increasing of NBRr loading. However for ENR-50 compatibilized composites, higher tensile strength and elongation at break was recorded. The ENR-50 was found to be an excellent compatibilizer for HDPE/NBRr/BSP composites.


2014 ◽  
Vol 55 (5) ◽  
pp. 1203-1210 ◽  
Author(s):  
Deepalekshmi Ponnamma ◽  
Josephine George ◽  
Martin George Thomas ◽  
Chin Han Chan ◽  
Srećko Valić ◽  
...  

2005 ◽  
Vol 78 (2) ◽  
pp. 286-311 ◽  
Author(s):  
Josephine George ◽  
N. R. Neelakantan ◽  
K. T. Varughese ◽  
Sabu Thomas

Abstract Blends of high density polyethylene (HDPE) and acrylonitrile butadiene rubber (NBR) were prepared by a melt blending technique. Dynamic mechanical analysis revealed that elastic modulus has a strong dependence on blend ratio. Loss factor peaks increase with increase in rubber content. Pure components exhibit single Tg whereas two Tgs can be observed in the blends indicating incompatibility between the constituents. Loss modulus data also give similar information. The addition of compatibilizer has only a marginal effect on tan δ peak corresponding to the transitions in NBR. The elastic modulus values of the compatibilized blends are slightly higher than that of incompatible blends. In dynamically vulcanized blends the Tg due to α-relaxation of NBR is increased in blends containing a high concentration of rubber phase. In filled blends the elastic modulus showed significant increase over unfilled system. Also, the damping factor is enhanced by filler incorporation indicating that such materials could find application in vibration dampers. The suitability of various theoretical models in predicting the blend moduli is examined. The Takayanagi model fits well with the experimental data in unfilled blends.


2015 ◽  
Vol 754-755 ◽  
pp. 197-200
Author(s):  
Ragunathan Santiagoo ◽  
Kamarudin Hussin ◽  
Sam Sung Ting ◽  
Azlinda Abdul Ghani ◽  
Hanafi Ismail ◽  
...  

The thermal degradation of high density polyethylene (HDPE)/ recycled acrylonitrile butadiene rubber (NBRr)/ banana skin powder (BSP) composites with and without ENR-50 are fabricated and studied. The thermal degradation of this composite was evaluated for 30 days oven ageing. The BSP with size of 150 – 300 μm was utilized in this work. All compounds were mixed using heated two roll mill at 180 °C. The compounds were molded in a hot press machine at 180 °C for 11 minutes to produce 1 mm thin sheet. Then the sheet were cut into dumbbell shape for the mechanical testing using universal testing machine. The tensile strength of high density polyethylene/ recycled acrylonitrile butadiene rubber/ banana skin powder composites showed the decreasing trend with the increasing NBRr loading for the composites with and without ENR-50. However, the result for the oven ageing showed lower tensile strength. This may due to the chain session of PP matrix at heat exposure duration of 30 days.


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