Tensile and Morphological Properties of Low Density Polyethylene/Spear Grass Composites

2013 ◽  
Vol 594-595 ◽  
pp. 715-719 ◽  
Author(s):  
S.T. Sam ◽  
P. Santhiya ◽  
S. Ragunathan ◽  
N.Z. Noriman ◽  
H. Ismail
Keyword(s):  
Natural Rubber ◽  
Tensile Properties ◽  
Morphological Analysis ◽  
Testing Machine ◽  
Tensile Modulus ◽  
Break Point ◽  
Morphological Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Twin Screw

The spear grass content on the tensile properties, morphology of low-density polyethylene (LDPE)/spear grass was investigated. The compatibilising effect of epoxidised natural rubber (ENR 50) LDPE and spear grass was mixed by using twin screw extruder with various spear grass contents. The tensile properties were tested by using an Universal Testing Machine (UTM). The tensile strength and elongation at the break point were significantly improved by the addition of ENR 50, as evidenced by morphological analysis using scanning electron microscopy (SEM). On the other hand, the tensile modulus increased with spear grass content up to 10% and decreased thereafter.Keywords: Epoxidised Natural rubber (ENR), Low Density Polyethylene (LDPE), Spear Grass, Tensile Properties

Characterization of Linear Low Density Polyethylene/Rambutan Peels Flour Blends: Effect of Loading Content

2016 ◽  
Vol 673 ◽  
pp. 171-179 ◽  
Author(s):  
A. Ainatun Nadhirah ◽  
S.T. Sam ◽  
N.Z. Noriman ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Mohd Firdaus Omar ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Testing Machine ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Screw Extruder ◽  
Twin Screw ◽  
Flour Blends

The effect of rambutan peels flour (RPF) content on the tensile properties of linear low density polyethylene filled with rambutan peel flour was studied. RPF was melt blended with linear low–density polyethylene (LLDPE). LLDPE/RPF blends were prepared by using twin screw extruder at 150°C with the flour content ranged from 0 to 25 wt%. The tensile properties were tested by using a universal testing machine (UTM) according to ASTM D638. The highest tensile strength was pure LLDPE meanwhile the tensile strength LLDPE/RPF decreased gradually with the addition of rambutan peels flour. Young’s modulus of rambutan peels flour filled LLDPE increased with increasing fiber loading. The crystallinity of the blends was significantly reduced with increasing RPF content. Instead, the water absorption increased with the addition of RPF content.

Impact of hybrid nanosilica and nanoclay on the properties of palm rachis-reinforced recycled linear low-density polyethylene composites

2020 ◽  
pp. 089270572094421
Author(s):  
Wagih Abdel Alim Sadik ◽  
Abdel Ghaffar Maghraby El Demerdash ◽  
Rafik Abbas ◽  
Alaa Bedir
Keyword(s):  
Tensile Modulus ◽  
Stress Transfer ◽  
Microscopy Study ◽  
Hybrid Nanoparticles ◽  
Morphological Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Plastic Composite ◽  
Blending Method

The main goal of this work was to assess the technical feasibility of palm rachis (PR) as a reinforcing agent in the production of wood–plastic composites. Recycled linear low-density polyethylene/PR fiber composites were prepared at constant content (3 phc (per hundred compounds)) of maleic anhydride-grafted polyethylene as compatibilizer by melt blending method utilizing a two-roll mill and compression molding. The effect of nanosilica (NS), nanoclay (NC), and hybrid nanoparticles (NSNC) at different concentrations (2, 4, and 6 phc) on mechanical, physical, thermal, and morphological properties was investigated. The results of mechanical properties measurements demonstrated that when 6 phc NS, 4 phc NC, and 4 phc NSNC were added, tensile, modulus strength, and hardness reached their optimum values. At a high level of NC loading (6 phc), the increased populace of NC layers led to agglomeration and stress transfer gets restricted. Elongation at break and Izod impact strength were decreased by the incorporation of different nanoparticles. Water absorption and thickness swelling of prepared composites were found to decrease on the incorporation of NS and NC. In addition, the thermal stability showed slightly improved by the addition of nanoparticles, but there are no perceptible changes in the values of melting temperature by increasing the content of NS and NC or NSNC. Scanning electron microscopy study approved the good interaction of the PR fibers with the polymer matrix as well as the effectiveness of NS and NC in the improvement of the interaction. The finding indicated that wood–plastic composite treated by NS had the highest properties than other composites.

Tensile Properties and Morphological Studies of Kenaf-Filled Linear Low Density Polyethylene/Poly(Vinyl Alcohol) (LLDPE/PVA/KNF) Composites: The Effects of KNF Loading

2016 ◽  
Vol 1133 ◽  
pp. 156-160 ◽  
Author(s):  
Ai Ling Pang ◽  
Hanafi Ismail ◽  
Azhar Abu Bakar
Keyword(s):  
Tensile Properties ◽  
Vinyl Alcohol ◽  
Tensile Modulus ◽  
Low Density Polyethylene ◽  
Poly Vinyl Alcohol ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Elongation At Break ◽  
Morphological Studies ◽  
Internal Mixer

Tensile properties and morphological studies of linear low density polyethylene (LLDPE)/poly (vinyl alcohol) (PVA)/kenaf (KNF) composites were investigated. The composites with different KNF loading (0, 10, 20, 30, 40 phr) were prepared using a Thermo Haake Polydrive internal mixer at 150°C and 50 rpm for 10 min. The results indicated that tensile strength and elongation at break were decreased with increasing KNF loading, whereas tensile modulus showed the opposite trend. Tensile fractured surfaces observed by scanning electron microscopy showed better interfacial adhesion between LLDPE/PVA and KNF at 10 phr KNF loading.

Effect of Natural Weathering on Tensile Properties of Low Density Polyethylene/Thermoplastic Soya Spent Powder Blends

2016 ◽  
Vol 1133 ◽  
pp. 226-230
Author(s):  
M.A. Nuradibah ◽  
Sung Ting Sam ◽  
N.Z. Noriman ◽  
Santiagoo Ragunathan ◽  
H. Ismail
Keyword(s):  
Tensile Properties ◽  
Testing Machine ◽  
Natural Weathering ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Lower Strength ◽  
Elongation At Break ◽  
Universal Testing Machine ◽  
Universal Testing ◽  
Internal Mixer

The effect of natural weathering on tensile properties of low density polyethylene/ thermoplastic soya spent powder (TSSP) was studied. TSSP was produced by mixing the soya spent powder (SSP) with glycerol. Both blends were prepared by using internal mixer (brabender) at 150 °C with the SSP/TSSP content ranged from 0 to 25 wt%. Then, all the dumb-bell samples were exposed to Perlis environment located at Kubang Gajah, Perlis for 6 months period. The tensile properties were tested by using a universal testing machine (UTM) according to ASTM D638. LDPE/SSP blends presented lower strength and elongation at break (Eb) than LDPE/ TSSP blends meanwhile there were no Young’s Modulus values for 20 wt% onwards of both blends due to the brittle samples after 6 months of weathering.

Effects of Filler Incorporation Routes on Mechanical Properties of Low Density Polyethylene/Natural Rubber/Silica (LDPE/NR/Si) Composites

2014 ◽  
Vol 679 ◽  
pp. 154-157 ◽  
Author(s):  
Pei Ying Teoh ◽  
Abdulbaset Mohamed Erfeida ◽  
Xuan Viet Cao ◽  
Du Ngoc Uy Lan
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Tensile Properties ◽  
Low Density Polyethylene ◽  
Tensile Fracture ◽  
Low Density ◽  
Tensile Fracture Surface ◽  
Roll Mill ◽  
Typical Morphology ◽  
Internal Mixer

Low density polyethylene (LDPE) and natural rubber (NR) filled silica composites were prepared by using internal mixer (Brabender) at 150°C and 50 rpm for 10 minutes. Silica was incorporated into polymer matrix by three mixing routes by using Brabender. In mixing I, filler was added into LDPE/NR blend. In mixing II, filler was added prior to LDPE, which was further compounded with NR. In mixing III, filled was pre-dispersed into NR using two-roll mill, after that the compound is blended with LDPE. The effects of filler incorporation routes on the morphological and tensile properties of prepared composites were studied. Observation from SEM result showed that silica tended to localize in NR phase than LDPE phase in the composite. In addition, silica filled LDPE/NR composite exhibited the highest tensile strength in mixing II and lowest in mixing III. Tensile fracture surface of the composites showed typical morphology of LDPE and NR phase depending on mixing methods. KEYWORDS: LDPE/NR, silica, mixing order, tensile properties, morphology

scholarly journals Well-Dispersed Cellulose Nanofiber in Low Density Polyethylene Nanocomposite by Liquid-Assisted Extrusion

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 927 ◽  
Author(s):  
Tengku Arisyah Tengku Yasim-Anuar ◽  
Hidayah Ariffin ◽  
Mohd Nor Faiz Norrrahim ◽  
Mohd Ali Hassan ◽  
Yoshito Andou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Morphological Analysis ◽  
Cellulose Nanofiber ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Melt Blending ◽  
Twin Screw Extrusion ◽  
Liquid Feeding ◽  
Screw Extrusion ◽  
Twin Screw

Two different liquid assisted processing methods: internal melt-blending (IMB) and twin-screw extrusion (TWS) were performed to fabricate polyethylene (PE)/cellulose nanofiber (CNF) nanocomposites. The nanocomposites consisted maleic anhydride-grafted PE (PEgMA) as a compatibilizer, with PE/PEgMA/CNF ratio of 97/3/0.5–5 (wt./wt./wt.), respectively. Morphological analysis exhibited that CNF was well-dispersed in nanocomposites prepared by liquid-assisted TWS. Meanwhile, a randomly oriented and agglomerated CNF was observed in the nanocomposites prepared by liquid-assisted IMB. The nanocomposites obtained from liquid-assisted TWS exhibited the best mechanical properties at 3 wt.% CNF addition with an increment in flexural strength by almost 139%, higher than that of liquid-assisted IMB. Results from this study indicated that liquid feeding of CNF assisted the homogenous dispersion of CNF in PE matrix, and the mechanical properties of the nanocomposites were affected by compounding method due to the CNF dispersion and alignment.

Tensile Properties of Linear Low Density Polyethylene/Rambutan Peels (Nephelium chryseum Blum.) Flour Blends

2014 ◽  
Vol 803 ◽  
pp. 348-352
Author(s):  
A. Ainatun Nadhirah ◽  
S.T. Sam ◽  
N.Z. Noriman ◽  
C.H. Voon ◽  
S.S. Samera
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Testing Machine ◽  
Packaging Material ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Universal Testing ◽  
Flour Blends ◽  
Internal Mixer

Polyethylene (PE) has found well-known use as a packaging material. The effect of rambutan peels flour (RPF) content on the tensile properties of linear low density polyethylene filled with rambutan peel flour was studied. RPF was melt blended with linear low–density polyethylene (LLDPE). LLDPE/RPF blends were prepared by using internal mixer (brabender) at 160 °C with the flour content ranged from 0 to 15 wt%. The tensile properties were tested by using a universal testing machine (UTM) according to ASTM D638. The tensile strength of LLDPE/RPF decreased gradually with the addition of rambutan peels flour content from 0% to 15%. The Young’s modulus of LLDPE/RPF increased with increasing the RPF size and content.

Environmentally degradable sago starch filled low-density polyethylene

2015 ◽  
Vol 35 (6) ◽  
pp. 551-563 ◽  
Author(s):  
Mohammad Dalour Hossen Beg ◽  
Shaharuddin Kormin ◽  
Mohd Bijarimi ◽  
Haydar U. Zaman
Keyword(s):  
Tensile Properties ◽  
Starch Content ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Sago Starch ◽  
Twin Screw Extrusion ◽  
Blend Films ◽  
Screw Extrusion ◽  
Twin Screw ◽  
High Starch

Abstract Degradable native low density polyethylene (LDPE) and modified LDPE films containing 5–30 wt% of sago starch, and LDPE with prodegradant additives in the form of a master batch (MB) in the amounts of 30% starch were prepared by twin screw extrusion followed by injection molding. Studies on their mechanical properties such as tensile strength and elongation at break and biodegradation were carried out by tensile test and exposure to hydrolysis, fungi environment as well as by natural weathering and burial in soil. The presence of high starch contents had an adverse effect on the tensile properties of the blend films. High starch content was also found to increase the rate of biodegradability of the films. The characteristic parameters of the environment were measured during the period of degradation and their influence on degradation of LDPE was discussed. Changes in weight, morphology, thermogravimetric analysis (TGA) and tensile properties of polymer samples were tested during the experiment performed.

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