Environmental weathering of (linear low-density polyethylene)/(soya powder) blends compatibilized with polyethylene-grafted maleic anhydride

2012 ◽  
Vol 18 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Sam Sung Ting ◽  
Hanafi Ismail ◽  
Zulkifli Ahmad
Keyword(s):  
Maleic Anhydride ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Powder Blends

Degradation of epoxidized natural rubber compatibilized linear low density polyethylene/ soya powder blends: the effect of natural weathering

2013 ◽  
Vol 33 (7) ◽  
pp. 579-588 ◽  
Author(s):  
S.T. Sam ◽  
H. Ismail ◽  
H.P.S. Abdul Khalil
Keyword(s):  
Natural Rubber ◽  
Exposure Period ◽  
Natural Weathering ◽  
Epoxidized Natural Rubber ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Scanning Calorimetry ◽  
Powder Blends ◽  
Compatibilized Blends

Abstract In the present study, linear low density polyethylene (LLDPE)/soya powder blends were compatibilized with epoxidized natural rubber (ENR 50) and exposed to natural weathering. The exposure period for the blends was 1 year. It was found that the degradability of the compatibilized blends was higher than that of uncompatibilized blends. Fourier transform infrared (FTIR) spectra, the tensile test, scanning electron microscopy (SEM), and differential scanning calorimetry (DSC) were applied to analyze the degradability of the blends. IR spectra showed that the carbonyl index (CI) of the blends increased as a function of exposure period and soya powder content. The compatibilized blends gave higher carbonyl indices. The retention tensile strength and elongation at break (Eb) of the compatibilized blends after weathering was generally lower than for the uncompatibilized blends. The increase of crystallinity also indicated a reduction of the amorphous portion after degradation. The higher crystallinity in compatibilized blends further confirms the higher degradability of ENR 50 compatibilized blends. The weight loss and molecular weight change indicated that the incorporation of ENR 50 into LLDPE/soya powder blends can enhance the degradability of the blends upon outdoor exposure.

Toughening effect of maleic anhydride grafted linear low density polyethylene on linear low density polyethylene

2008 ◽  
Vol 43 (12) ◽  
pp. 4290-4296 ◽  
Author(s):  
Le-Ping Huang ◽  
Xing-Ping Zhou ◽  
Wei Cui ◽  
Xiao-Lin Xie ◽  
Shen-Yi Tong
Keyword(s):  
Maleic Anhydride ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene

Tensile Properties LLDPE/Soya Spent Powder Blends: Oven Aging

2013 ◽  
Vol 795 ◽  
pp. 429-432
Author(s):  
S.T. Sam ◽  
N.Z. Noriman ◽  
S. Ragunathan ◽  
H. Ismail
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Aging Time ◽  
Thermal Aging ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Elongation At Break ◽  
Powder Blends ◽  
Internal Mixer

Linear low-density polyethylene (LLDPE)/soya spent powder blends with different blends ratio were prepared by using internal mixer. Soya spent powder was varied from 5 to 40 wt. The thermal degradability was assessed by subjecting the dumbbell sample to oven aging. Thermal aging was carried out for 5 weeks. The degradability was measured by the periodic change in tensile properties of the blend samples. The tensile strength and elongation at break of the blends reduced as increasing the aging time. The effect of degradation was obvious in higher soya spent powder blends.

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