Polypropylene/wood powder/ethylene propylene diene monomer rubber‐maleic anhydride composites: Effect of PP melt flow index on the thermal, mechanical, thermomechanical, water absorption, and morphological parameters

2020 ◽  
Author(s):  
Eduardo Silva Barbosa Ferreira ◽  
Carlos Bruno Barreto Luna ◽  
Edcleide Maria Araújo ◽  
Danilo Diniz Siqueira ◽  
Renate Maria Ramos Wellen
Keyword(s):  
Maleic Anhydride ◽  
Water Absorption ◽  
Melt Flow Index ◽  
Flow Index ◽  
Morphological Parameters ◽  
Ethylene Propylene Diene Monomer ◽  
Wood Powder ◽  
Melt Flow ◽  
Ethylene Propylene

Tensile Properties and Melt Flow Index of Polypropylene/Ethylene Propylene Diene Monomer Nanocomposites

2015 ◽  
Vol 1107 ◽  
pp. 125-130 ◽  
Author(s):  
Muhammad Safwan Hamzah ◽  
M. Mariatti ◽  
M. Kamarol
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Melt Flow Index ◽  
Filler Loading ◽  
Flow Index ◽  
Ethylene Propylene Diene Monomer ◽  
Melt Flow ◽  
Elongation At Break ◽  
Ethylene Propylene ◽  
Internal Mixer

In this article, we report three nanofillers filled polymer composite systems. Nanofillers composed of alumina, titania and organoclay were embedded separately in 50% polypropylene (PP) and 50% ethylene propylene diene monomer (EPDM) blends. The nanocomposites were prepared using an internal mixer and were molded using a compression mold to form test samples. Effect of filler loading (2, 4, 6, and 8 vol.%) on the tensile properties and melt flow index (MFI) were determined. The mechanical properties of alumina are the highest compared to titania and organoclay. Alumina and organoclay shows an ascending trend in tensile strength with the increase of nanofiller loading. In contrast, the increment of titania filler loading reduces the tensile strength of the nanocomposites. The Young's modulus of the nanocomposites increases with the addition of filler loading. Elongation at break of the nanocomposites shows a descending trend with the addition of filler loading. The addition of 8 vol. % titania and organoclay slightly changes the MFI of the PP/EPDM nanocomposites whereas the addition of 8 vol. % alumina drastically decreased the MFI values. Further addition of nanofillers up to 8 vol. % decreases the MFI values of the PP/EPDM nanocomposites.

scholarly journals Enhancement of mechanical, thermal and water uptake performance of TPU/jute fiber green composites via chemical treatments on fiber surface

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 133-143 ◽  
Author(s):  
Tuffaha Fathe Salem ◽  
Seha Tirkes ◽  
Alinda Oyku Akar ◽  
Umit Tayfun
Keyword(s):  
Water Absorption ◽  
Water Uptake ◽  
Mechanical Test ◽  
Fiber Surface ◽  
Melt Flow Index ◽  
Jute Fiber ◽  
Morphological Properties ◽  
Flow Index ◽  
Melt Flow ◽  
Treatment Type

AbstractChopped jute fiber (JF) surfaces were modified using alkaline, silane and eco-grade epoxy resin. Surface characteristics of jute fibers were confirmed by FTIR and EDX analyses. JF filled polyurethane elastomer (TPU) composites were prepared via extrusion process. The effect of surface modifications of JF on mechanical, thermo-mechanical, melt-flow, water uptake and morphological properties of TPU-based eco-composites were investigated by tensile and hardness tests, dynamic mechanical analysis (DMA), melt flow index (MFI) test, water absorption measurements and scanning electron microscopy (SEM) techniques, respectively. Mechanical test results showed that silane and epoxy treated JF additions led to increase in tensile strength, modulus and hardness of TPU. Glass transition temperature (Tg) of TPU rose up to higher values after JF inclusions regardless of treatment type. Si-JF filled TPU exhibited the lowest water absorption among composites. Surface treated JFs displayed homogeneous dispersion into TPU and their surface were covered by TPU according to SEM micro-photographs.

A Study of the Effect of Maleic Anhydride on the Synthesis, Morphology, and Properties of Acrylonitrile Butadiene Styrene Plastic

2018 ◽  
Vol 45 (6) ◽  
pp. 251-256 ◽  
Author(s):  
O.M. Trifonova ◽  
Yu.A. Panova ◽  
I.G. Akhmetov
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Maleic Anhydride ◽  
Acrylonitrile Butadiene Styrene ◽  
Melt Flow Index ◽  
Flow Index ◽  
Melt Flow ◽  
Gel Fraction ◽  
Butadiene Styrene

The results of investigating the synthesis of ABS plastic in the presence of maleic anhydride are set out. It was shown that increase in the modifier content in the range 0.5–1.75 wt% leads to a reduction in the melt flow index and gel-fraction swelling index and to an increase in the glass transition temperature of the polymer.

Studying the Rheological Properties of a Polylactide Melt Mixed with Wood Filler

2021 ◽  
pp. 173-179
Author(s):  
Gul’naz A. Sabirova ◽  
◽  
Ruslan R. Safin ◽  
Nour R. Galyavetdinov ◽  
Aigul R. Shaikhutdinova ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Rheological Properties ◽  
Experimental Studies ◽  
Untreated Wood ◽  
Melt Flow Index ◽  
Production Costs ◽  
Flow Index ◽  
Low Grade ◽  
Wood Powder ◽  
Melt Flow

Composite materials based on wood filler are promising materials that are actively conquering the market. This is due to the advantages of using these materials in various fields: weather resistance and environmental compatibility, easy machining and possibility of recycling. Furthermore, it is sustainable use of wastes of timber sawing and furniture and woodworking industries, as well as low-grade wood. Wood powder is also known to be one of the components of consumables used in additive 3D printing technologies. Over the last decade, the commercial use of 3D printers has increased rapidly due to the fact that it allows creating prototype objects of complex shape based on a computer model. Experimental studies were carried out to determine the tensile strength and rheological properties of a composite made of polylactide 4043D, untreated wood powder brand 140 and wood powder thermally modified at 200 and 240 °C. The composite is intended for creation of three-dimensional objects by extrusion using a 3D printer. It was found that with an increase in the amount of filler in the composite, the tensile strength decreases. Also, samples with thermally modified filler show an increase in tensile strength in comparison with samples with untreated filler. Prototypes of 3D threads with different composition were obtained, during the study of which the melt flow index was examined. It was found that with increasing temperature of wood filler treatment the melt flow index increases. With a lower content of wood powder in the melt composition, there is a 2-fold increase in the melt flow index. The knowing of the rheological properties of the resulting compositions will allow achieving maximum performance and reduction of energy and production costs.

Properties of Recycled High Density Polyethylene/Recycled Polypropylene Blends: Effect of Maleic Anhydride Polypropylene

2013 ◽  
Vol 594-595 ◽  
pp. 837-841 ◽  
Author(s):  
A.A.S. Maryam Atiqah ◽  
Husseinsyah Salmah ◽  
Z. Firuz ◽  
D.N.U. Lan
Keyword(s):  
Tensile Strength ◽  
Maleic Anhydride ◽  
Modulus Of Elasticity ◽  
High Density Polyethylene ◽  
Melt Flow Index ◽  
Flow Index ◽  
Melt Flow ◽  
Recycled Polypropylene ◽  
Blend Ratios ◽  
Compatibilized Blends

Polymer blending provides an efficient way to develop new materials with improved properties while preserve the primary properties of the materials at lower cost. The blends recycled high density polyethylene (rHDPE) and recycled polypropylene (rPP) with and without maleic anhydride polypropylene (MAPP) have been investigated. The effect of different blend ratios on tensile properties, morphology and melt flow index were studied. The tensile strength and modulus of elasticity of both blends increased with increased of rPP in the blend ratios but the elongation at break decreased. It was found that the tensile strength and modulus of elasticity of compatibilized rHDPE/rPP blends higher than uncompatibilized blends. The SEM micrograph of tensile fractured surface of compatibilized blends showed better interfacial adhesion and interaction between rHDPE and rPP. The melt flow index of compatibilized blends showed better flowablity than uncompatibilized blends.

Rheological Study on of PBT with High Melt Flow Index

2012 ◽  
Vol 487 ◽  
pp. 644-648
Author(s):  
Yuan Liu ◽  
Lin Wang ◽  
Qing Yan Xu ◽  
Pei Jie Lin ◽  
Zhi Hong Guo ◽  
...  
Keyword(s):  
Activation Energy ◽  
Shear Rate ◽  
Apparent Viscosity ◽  
Melt Flow Index ◽  
Flow Index ◽  
Melt Flow ◽  
Flow Activation Energy ◽  
Nonwoven Fabrics ◽  
Flow Activation ◽  
High Flexibility

Melt-blown generated PBT nonwoven fabrics usually have small fibril diameter, high flexibility, well heat and oil resistance. Therefore, they would have promising application such as vehicle filtering media. The rheological behavior of PBT with High Melt Flow Index for Melt-blown is investigated in this paper. It is a direction of the technology design and fabrication parameters .The relation of apparent viscosity and shear rate is analyzed, as well as flow activation energy and Non-Newtonian indexes. The results suggest that PBT with High Melt Flow Index is Non-Newtonian fluid. Apparent viscosity and flow activation energy show gradually decrease with increasing shear rate, exhibiting typical shear-thinning behavior.

From melt flow index to rheogram

1983 ◽  
Vol 22 (1) ◽  
pp. 90-101 ◽  
Author(s):  
A. V. Shenoy ◽  
S. Chattopadhyay ◽  
V. M. Nadkarni
Keyword(s):  
Melt Flow Index ◽  
Flow Index ◽  
Melt Flow

Thermomechanical investigations of PEKK-HAp-CS composites

2019 ◽  
Vol 233 (11) ◽  
pp. 1196-1203
Author(s):  
Rupinder Singh ◽  
Gurchetan Singh ◽  
Jaskaran Singh ◽  
Ranvijay Kumar ◽  
Md Mustafizur Rahman ◽  
...  
Keyword(s):  
Melt Flow Index ◽  
Extrusion Process ◽  
Flow Index ◽  
Fused Deposition Modelling ◽  
Index Test ◽  
Melt Flow ◽  
Scanning Calorimetry ◽  
Fused Deposition ◽  
Ether Ketone ◽  
Input Variables

In this experimental study, a composite of poly-ether-ketone-ketone by reinforcement of hydroxyapatite and chitosan has been prepared for possible applications as orthopaedic scaffolds. Initially, different weight percentages of hydroxyapatite and chitosan were reinforced in the poly-ether-ketone-ketone matrix and tested for melt flow index in order to check the flowability of different compositions/proportions. Suitable compositions revealed by the melt flow index test were then taken forward for the extrusion of filament required for fused deposition modelling. For thermomechanical investigations, Taguchi-based design of experiments has been used with input variables in the extrusion process as follows: temperature, load applied and different composition/proportions. The specimens in the form of feedstock filament produced by the extrusion process were made to undergo tensile testing. The specimens were also inspected by differential scanning calorimetry and photomicrographs. Finally, the specimen showing the best performance from the thermomechanical viewpoint has been selected to extrude the filament for the fused deposition modelling process.

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