scholarly journals Effect of soil burial on silane treated and untreated kenaf fiber filled linear low-density polyethylene/polyvinyl alcohol composites

BioResources ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. 8648-8661
Author(s):  
Ai Ling Pang ◽  
Agus Arsad ◽  
Mohsen Ahmadipour ◽  
Hanafi Ismail ◽  
Azhar Abu Bakar
Keyword(s):  
Weight Loss ◽  
Surface Morphology ◽  
Polyvinyl Alcohol ◽  
Tensile Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Melt Mixing ◽  
Soil Burial ◽  
Burial Duration

In recent decades, natural fibers have become widely used with petroleum based polymers such as polyethylene (PE) and polypropylene (PP) because of their light weight, lower cost, and inherent biodegradability. In the present work, linear low-density polyethylene/polyvinyl alcohol (LLDPE/PVOH) composites with untreated kenaf and silane-treated kenaf at filler loadings of 0, 10, and 40 phr were prepared via the melt mixing process. The soil burial test was used to evaluate the degradability of the composites for different durations (90 and 180 d). The tensile properties, surface morphology, chemical composition, percentage of weight loss, and crystallinity of the composites before and after degradation were evaluated. With increased kenaf loading and soil burial duration, all the composites showed a decrease in tensile properties. This was further confirmed by the changes in surface morphology and chemical structure of the buried composites. The increase in weight loss percentage and crystallinity after soil burial indicated that the longer burial duration had increased the degradation of composites. Composites with silane-treated kenaf exhibited lower degradability than that of composites with untreated kenaf after being buried for 90 and 180 d. This may be attributed to the improved adhesion of kenaf to the LLDPE/PVOH matrix via silane treatment.

Tensile Properties of Linear Low Density Polyethylene (LLDPE)/ Recycled Acrylonitrile Butadiene Rubber (NBRr)/ Rice Husk Powder (RHP) Composites

2015 ◽  
Vol 754-755 ◽  
pp. 210-214 ◽  
Author(s):  
Ragunathan Santiagoo ◽  
Sam Sung Ting ◽  
Hanafi Ismail ◽  
Mastura Jaafar
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Rice Husk ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Butadiene Rubber ◽  
Linear Low Density Polyethylene ◽  
Melt Mixing ◽  
Elongation At Break ◽  
Acrylonitrile Butadiene Rubber

The compatibilizer effect of ENR-50 on the tensile properties and morphology of linear low density polyethylene (LLDPE)/ recycled acrylonitrile butadiene rubber (NBRr)/ rice husk powder (RHP) composites has been studied. The RHP size utilize in this work is 150 – 300 μm. LLDPE/NBRr/RHP composites were prepared by melt mixing technique at 180 °C for 9 minutes at 50 rpm rotor speed using heated two roll mill. The series of composites investigated were 100/0/5, 80/20/5, 70/30/5, 60/40/5, 50/50/5, and 40/60/5. The composites were analysed by using tensile test and morphology examination. The result showed that the tensile strength of composite was decreased with the increasing of recycled acrylonitrile butadiene rubber (NBRr) content while elongation at break (Eb) were increased. However, the tensile strength and elongation at break result for composites with ENR-50 as compatibilizer showed higher values. The morphological finding supports the tensile properties which indicate better interaction between the RHP filler and LLDPE/NBRr matrix in the presence of ENR-50 compatibilizer.

Effects of reactive melt mixing on the morphology and thermal behavior of linear low-density polyethylene/rubber blends

2008 ◽  
Vol 109 (2) ◽  
pp. 1014-1021 ◽  
Author(s):  
Maurizio Penco ◽  
Stefania Della Sciucca ◽  
Elisa Passaglia ◽  
Guido Giordani ◽  
Serena Coiai ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Melt Mixing ◽  
Rubber Blends ◽  
Reactive Melt

Natural weather, soil burial and sea water ageing of low-density polyethylene: Effect of starch/linear low-density polyethylene masterbatch

2012 ◽  
Vol 129 (1) ◽  
pp. 449-457 ◽  
Author(s):  
M. Elanmugilan ◽  
P. A. Sreekumar ◽  
N. K. Singha ◽  
Mamdouh A. Al-Harthi ◽  
S. K. De
Keyword(s):  
Sea Water ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Soil Burial

Studies on the Biodegradability of Linear Low-Density Polyethylene–Dextrin Blends using Vibrios from the Benthic Environment

2009 ◽  
Vol 25 (3) ◽  
pp. 129-139
Author(s):  
Zeena P. Hamza ◽  
K.F. Anna Dilfi ◽  
Thomas Kurian ◽  
Saritha G. Bhat
Keyword(s):  
Culture Medium ◽  
Thermal Studies ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Particle Sizes ◽  
Linear Low Density Polyethylene ◽  
Soil Burial ◽  
Benthic Environment

Linear low-density polyethylene (LLDPE) was blended with dextrin of different particle sizes (100, 200, and 300 mesh). Various compositions were prepared, and mechanical and thermal studies were carried out. The biodegradability of these samples was verified using culture medium containing vibrios (amylase-producing bacteria) which were isolated from the marine benthic environment. Soil burial tests of these samples were also conducted. Biodegradability tests on these blends indicate that they are partially biodegradable.

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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