Effect of Compatibilizers on Mechanical Thermal and Morphology Properties of HDPE/TiO2 Nanocomposites

2010 ◽  
Vol 93-94 ◽  
pp. 169-172
Author(s):  
N. Wiriyanukul ◽  
S. Wacharawichanant
Keyword(s):  
Tensile Strength ◽  
Electron Microscope ◽  
High Density Polyethylene ◽  
Morphological Properties ◽  
Screw Extruder ◽  
Melt Mixing ◽  
Before And After ◽  
Twin Screw ◽  
Dispersion Of Nanoparticles ◽  
Scanning Electron

This work studies the effect of PE-g-MA compatibilizer on mechanical thermal and morphological properties of high density polyethylene (HDPE)/titanium dioxide (TiO2) nanocomposites. The HDPE/TiO2 nanocomposites with and without PE-g-MA compatibilizer were prepared by melt mixing technique in a twin screw extruder. The results found that Young's Modulus of HDPE/TiO2 nanocomposites increased with increasing TiO2 contents. The addition of PE-g-MA compatibilizer had no significant effect on the tensile strength and stress at break of HDPE/TiO2 nanocomposites. The decomposition temperatures of HDPE/TiO2 nanocomposites before and after adding PE-g-MA compatibilizer increased with increasing TiO2 contents. The dispersion of TiO2 nanoparticles in HDPE matrix was observed by scanning electron microscope (SEM). The dispersion of nanoparticles in HDPE matrix with PE-g-MA compatibilizer was relatively good, only a few aggregates exited.

Effect of Type and Concentration of Ionomer Compatibilizer on the Hdpe/ Ionomer/ Clay Nanocomposites Morphology

2010 ◽  
Vol 644 ◽  
pp. 17-20 ◽  
Author(s):  
S. López-García ◽  
Saul Sánchez-Valdés ◽  
L.F. Ramos de Valle
Keyword(s):  
Electron Microscopy ◽  
High Density Polyethylene ◽  
Clay Nanocomposites ◽  
Screw Extruder ◽  
Melt Mixing ◽  
X Ray ◽  
Twin Screw ◽  
Thermal Stability Of ◽  
Cloisite 20A ◽  
Scanning Electron

A study of the effect of an ionomer compatibilizer (surlyn® 9520 and 9721, both with zinc as the neutralizing cation) on the morphology and properties of a high density polyethylene (HDPE) - montmorillonite clay nanocomposite was carried out. The nanoclay used was cloisite 20A®. Polyethylene /Ionomer /Clay nanocomposites were prepared via melt mixing in a twin screw extruder. The nanoclay dispersion and exfoliation were examined through X-Ray Difraction (XRD) and Scanning Electron Microscopy (SEM). TGA was carried out to determine the effect of nanoclay on the thermal stability of the HDPE nanocomposites. Results showed that both ionomers impart a marked compatibility between the polymer and the nanoclay, promoting the exfoliation of the nanoclay within the HDPE matrix. Nonetheless, ionomer 9520 (with the higher degree of neutralization) at 10 and 12 wt% content produced completely exfoliated morphologies, whereas, the ionomer 9721 produced a lesser degree of exfoliation with few tactoids.

Behaviour of PLA/POSS nanocomposites: Effects of filler content, functional group and copolymer compatibilization

2021 ◽  
pp. 096739112110080
Author(s):  
Yelda Meyva Zeybek ◽  
Cevdet Kaynak
Keyword(s):  
Functional Group ◽  
Filler Content ◽  
Mechanical And Thermal Properties ◽  
Screw Extruder ◽  
Melt Mixing ◽  
Grafted Copolymer ◽  
Before And After ◽  
Twin Screw ◽  
Oligomeric Silsesquioxane ◽  
Matrix Nanocomposites

The main purpose of this study was to investigate influences of three parameters on the mechanical and thermal properties of the polylactide (PLA) matrix nanocomposites filled with polyhedral oligomeric silsesquioxane (POSS) particles. For the first parameter of “Filler Content”, nanocomposites with 1, 3, 5, 7 wt% basic POSS structure were compared. For the second parameter of “Functional Group,” basic POSS structure having only nonpolar isobutyl groups were compared with three other functionalized POSS structures; i.e. aminopropylisobutyl-POSS (ap-POSS), propanediolisobutyl-POSS (pd-POSS) and octasilane-POSS (os-POSS). Finally, for the third parameter of “Copolymer Compatibilization,” all specimens were compared before and after their maleic anhydride (MA) grafted copolymer compatibilization. Specimens were produced with twin-screw extruder melt mixing and shaped under compression molding. Various tests and analyses indicated that the optimum filler content for the improved mechanical properties was 1 wt%; while the optimum structure for strength and modulus was pd-POSS structure, in terms of fracture toughness it was basic POSS structure. Additional use of MA compatibilization was especially effective for the basic POSS and os-POSS particles.

Effects of Epoxidized Nature Rubber on High Density Polyethylene/Recycled Acrylonitrile Butadiene Rubber/Banana Skin Powder Composites

2015 ◽  
Vol 754-755 ◽  
pp. 201-204
Author(s):  
Ragunathan Santiagoo ◽  
Sam Sung Ting ◽  
Azlinda Abdul Ghani ◽  
Hanafi Ismail ◽  
Awiezan Mislan
Keyword(s):  
Tensile Strength ◽  
High Density Polyethylene ◽  
High Density ◽  
Butadiene Rubber ◽  
Rotor Speed ◽  
Melt Mixing ◽  
Elongation At Break ◽  
Acrylonitrile Butadiene Rubber ◽  
Twin Screw ◽  
Powder Composites

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.

Effect of Compatibilizer on Impact Strength and Morphology of Polystyrene/Zinc Oxide Nanocomposites

2012 ◽  
Vol 545 ◽  
pp. 330-334
Author(s):  
Sirirat Wacharawichanant ◽  
Pranee Saetun ◽  
Thunwawon Lekkong ◽  
Thongyai Supakanok
Keyword(s):  
Particle Size ◽  
Zinc Oxide ◽  
Impact Strength ◽  
Impact Test ◽  
Screw Extruder ◽  
Melt Mixing ◽  
Zno Particles ◽  
Twin Screw ◽  
The Impact ◽  
Scanning Electron

This article investigated the effects of particle size of zinc oxide (ZnO) and polystyrene-co-maleic anhydride (SMA) compatibilizer on impact strength and morphology of polystyrene (PS)/ZnO71 (71 nm) and PS/ZnO250 (250 nm) nanocomposites. PS/ZnO nanocomposites with varying concentration of ZnO and SMA were prepared by a melt mixing technique in a twin screw extruder. It was found that the impact strength of PS nanocomposites increased up to a ZnO content of 1.0 wt%. Moreover, PS/ZnO250 nanocomposites had higher impact strength than PS/ZnO71 nanocomposites. The addition of SMA increased the impact strength of PS/ZnO nanocomposites with increasing SMA content. The result showed that SMA could improve impact strength of nanocomposites. The dispersion of ZnO particles on PS/ZnO nanocomposites was studied by scanning electron microscope (SEM). It was observed that the dispersion of ZnO particles of PS/ZnO nanocomposites without SMA was non-uniform and the agglomeration of ZnO particles in the polymer matrix increased with increasing ZnO content. The dispersion of ZnO particles of PS/ZnO nanocomposites after adding SMA was relatively good and only few aggregations exist. These observations support the results of the impact test where the PS/ZnO nanocomposites with SMA displayed higher impact strength than the PS/ZnO nanocomposites without SMA. The study showed that SMA was used as a compatibilizer to improve the dispersability and compatibility of ZnO particles in PS matrix.

The Reinforcement of Acicular Wollastonite on Polypropylene

2010 ◽  
Vol 92 ◽  
pp. 283-288 ◽  
Author(s):  
Ming Shan Yang
Keyword(s):  
Electron Microscope ◽  
Interfacial Adhesion ◽  
Screw Extruder ◽  
Feeding Method ◽  
Reinforcing Effect ◽  
Comprehensive Properties ◽  
Different Types ◽  
Twin Screw ◽  
Pp Composites ◽  
Scanning Electron

The wollastonite/PP composites were manufactured by twin-screw extruder and the effects of compatabilizer, feeding method and screw configuration on the properties of wollastonite/PP composites were investigated in this paper. The dispersion of fibrous wollastonite in PP matrix was determined by scanning electron microscope (SEM). The results showed that the strength, toughness and flowability of the composite were simultaneously guaranteed by using three different types of PP resins, and the interfacial adhesion was improved greatly by adding the compatabilizer of PP-g-MAH, which increases the comprehensive properties of wollastonite/PP composite. The fibrous dispersion of wollastonite in PP matrix was achieved by using of side feeding and the weak-shear screw configuration, which reaches the good reinforcing effect.

Studies on Tensile Properties of Compatibilized and Uncompatibilized Low-Density Polyethylene/Jackfruit Seed Flour (LDPE/JFSF) Blends at Different JFSF Content

2017 ◽  
Vol 264 ◽  
pp. 120-123 ◽  
Author(s):  
Sung Ting Sam ◽  
Omar Sabbar Dahham ◽  
Pei Gie Gan ◽  
N.Z. Noimam ◽  
Jingi Y. Kuan ◽  
...  
Keyword(s):  
Tensile Properties ◽  
Adipic Acid ◽  
Morphological Properties ◽  
Screw Extruder ◽  
Direct Introduction ◽  
Elongation At Break ◽  
Seed Flour ◽  
Before And After ◽  
Twin Screw ◽  
Natural Fillers

Currently, natural fillers seem to be the suitable materials in polymer industry, which have emerged as a viable and abundant replacement for the relatively high-cost and non-renewable conventional fillers. However, the direct introduction of natural fillers into polymer matrix could effect negatively on some properties. Therefore, the aim of this work is to evaluate the influence of jackfruit seed flour (JFSF) (before and after compatibilization) on the tensile properties of (LDPE/JFSF) blends. Different JFSF content (5, 10, 15 and 20 wt.%) with (63-100 𝜇𝑚) particle size were prepared in this work. Twin-screw extruder at 150°C and 50rpm screw speed followed by hot-compress machine at 150°C and 10MPa pressure were used respectively to produce (LDPE/JFSF) blends. Adipic acid (AA) solution was added as a compatibilizer into all blends equally (25wt% AA into 75wt% JFSf). The changes of tensile and morphological properties were investigated. Results shown decreasing on tensile strength and elongation at break of LDPE/JFSF and LDPE/JFSF/AA as JFSF increased. In contrast, Young’s modulus increased up to 10 wt.% of JFSF and then decreased. However, the addition of Adipic acid, particularly for JFSF 5wt.% has improved the tensile properties of LDPE/JFSF blends. The SEM micrographs showed the agglomeration at high JFSF content (20 wt%) which in turn effected negatively on the tensile properties. However, the blends show homogeneous surfaces as AA added.

The impact properties of a polyamide 6– polytetrafluoroethylene composite

2009 ◽  
Vol 224 (1) ◽  
pp. 13-17 ◽  
Author(s):  
J Li ◽  
Y F Zhang
Keyword(s):  
Electron Microscope ◽  
Interfacial Adhesion ◽  
Polyamide 6 ◽  
Continuous Phase ◽  
Dispersed Phase ◽  
Screw Extruder ◽  
Impact Properties ◽  
Twin Screw ◽  
The Impact ◽  
Scanning Electron

Polyamide 6 (PA6)-filled polytetrafluoroethylene (PTFE) at different compositions has been successfully prepared in a corotating twin screw extruder where PTFE acts as the polymer matrix and PA6 as the dispersed phase. The morphology and impact properties of these blends were investigated using a scanning electron microscope. The presence of PA6 particles dispersed in the PTFE continuous phase exhibited a coarse morphology. Increasing PA6 contents in the blend improved the impact properties at weak deformation. It was found that the interfacial adhesion played an important role in the creation of an interphase that was formed by the interaction between the PTFE and PA6. This induced an improvement in impact properties. In addition, the optimum impact properties were obtained when the content of PA6 is 30 vol%.

Mechanical and Morphological Properties of Meranti Wood Flour Filled Polypropylene Composites

2016 ◽  
Vol 840 ◽  
pp. 91-96 ◽  
Author(s):  
Bashree Abu Bakar ◽  
Mohamad Najmi Masri ◽  
Mohd Hazim Mohamad Amini ◽  
Mazlan Mohamed ◽  
Muhammad Azwadi Sulaiman ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wood Flour ◽  
Morphological Properties ◽  
Screw Extruder ◽  
Polypropylene Composites ◽  
Plastic Composites ◽  
Twin Screw ◽  
Injection Molded ◽  
Fibre Matrix ◽  
Scanning Electron

Wood plastic composites (WPC) have been produced by compounding meranti wood flour (WF) with polypropylene (PP) copolymer using a twin-screw extruder. The meranti WF content was varied from 30 to 60 wt.%. The mechanical properties, i.e. tensile, flexural and impact of the composites were determined on injection-molded specimens. The tensile fractured surfaces were used to study the morphological properties of the composites. The result shows that the increment in WF content has given a significant improvement in modulus properties but at the expense of strength and toughness properties. A commercial maleic anhydride grafted polypropylene (MAPP) compatibilizer at 5 wt.% was incorporated into the PP40/WF60 formulation. The strength, stiffness and toughness properties were improved significantly in the presence of MAPP. The morphology of the composites was studied by scanning electron microscopy (SEM). The improvement of the fibre-matrix adhesion between the WF and PP matrix as revealed by SEM is believed to be one of the major reasons for the improved mechanical properties.

Mechanical and Vulcanization Behaviors of SBR/N330 and SBR/N330/PBMCN Nanocomposites

2011 ◽  
Vol 230-232 ◽  
pp. 103-106
Author(s):  
Hai Tao Liu ◽  
Jing Feng Zhang ◽  
Yi Guang Tian ◽  
Xue Jun Weng ◽  
Shi E Lin
Keyword(s):  
Tensile Strength ◽  
Electron Microscope ◽  
Mass Fraction ◽  
Partial Replacement ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Melt Mixing ◽  
Elongation At Break ◽  
Styrene Butadiene ◽  
Scanning Electron

Mechanical and vulcanization behaviors of styrene-butadiene rubber(SBR)/N330 and SBR/N330/PBMCN nanocomposites were investigated via partial replacement of SBR with pyrophyllite based modified composite nanopowder(PBMCN), which were prepared by melt mixing procedure. Results show a fairly good dispersion of PBMCN in the SBR/N330/PBMCN composites characterized by field-emission scanning electron microscope (FESEM). Mechanical and vulcanization behaviors of the as-abtained pruducts were measured according to GB/T 528-2009 and GB/T 16584-1996, respectively. Near properties in tensile strength, elongation at break and vulcanization behaviors were observed in SBR/N330/PBMCN nanocomposites when SBR was partially replaced by PBMCN for 8% mass fraction. A possible reinforcement mechanism of PBMCN to SBR/N330/PBMCN nanocomposites is also dicussed based on the experiment.

scholarly journals Thermal, Morphological, and Biodegradability Properties of Bioplastic Fertilizer Composites Made of Oil Palm Biomass, Fertilizer, and Poly(hydroxybutyrate-co-valerate)

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
A. S. Harmaen ◽  
A. Khalina ◽  
H. Mohd Ali ◽  
I. Nor Azowa
Keyword(s):  
Electron Microscope ◽  
Oil Palm ◽  
Slow Release ◽  
Empty Fruit Bunch ◽  
Screw Extruder ◽  
Sem Images ◽  
Oil Palm Biomass ◽  
Twin Screw ◽  
Increasing Temperature ◽  
Scanning Electron

Slow-release bioplastic fertilizer (BpF) composites were developed by processing oil palm empty fruit bunch (EFB), fertilizer, and poly(hydroxybutyrate-co-valerate) (PHBv) using extrusion techniques with controlled formulation and temperature. The temperature was kept at 150°C for 3 to 5 min during processing using twin-screw extruder. The PHBv lost weight gradually with the increasing temperature and its thermal degradation occurred initially at 263.4°C and reached the maximum at 300.7°C. Scanning electron microscope (SEM) images showed that the bonding of all composites created small gaps between matrices polymer and fiber because the hydrophilic characteristic of EFB fibers weakened the interfacial bonding. PHBv/EFB/NPKC2 showed faster biodegradation over PHBv/NPKC1 and PHBv/NPKC2, which was 99.35% compared to 68.66% and 90.28%, respectively.

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