study of the fibre morphology stability in polypropylene

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This study investigated the effects of different compositions of rice husk (RH) filler on the mechanical and morphological properties of recycled HDPE (rHDPE) composite The composites were prepared with five different loading contents of RH fibers (0 10 20 30 and 40 wt%) using the twin screw extrusion method Maleic acid polyethylene (MAPE) was added as a coupling agent Results showed CHAPTER 3 MATERIALS AND METHODS 3 1 INTRODUCTION The main objective of this research work was to produce CFF and its hybrid fibre reinforced polypropylene composite In order to achieve this objective initially the CFF was characterized for its properties and later the fibres were mixed / blended and passed through the carding machine to produce web These webs were stacked and

Effect of nanosilica and titania on thermal stability of

Degradation of polypropylene (PP) composites at elevated temperature for prolonged period has shortened the lifetime of PP composites Thus variety of fillers has been incorporated into PP matrix to improve thermal degradation stability The effects of titania and nanosilica in PP reinforced with oil palm empty fruit bunch fibres (EFB) were investigated in this study

Morphology dimensional stability and mechanical properties of polypropylene–wood flour composites with and without nanoclay Hossein Khanjanzadeh Taghi Tabarsa and Alireza Shakeri Journal of Reinforced Plastics and Composites 2017 31 : 5 341-350

Thermal Properties Determination of Polypropylene/Rice Straw Biocomposite Foam Via TGA It was influenced by the excellent quality in thermal stability of the polypropylene matrix itself [5] with the additional effect of the bubbles in the composite structure which was not affected by the existence of rice straw and acted as good thermal insulator From the results it show that the

Study of the fibre morphology stability in polypropylene-flax composites Polymer Degradation and Stability 21 mars 2013 The objective of this paper is to understand the impact of the fibre morphology and process parameters on the final stability and microstructure of polypropylene-flax fibres composites In a first part we showed that after various extrusion or injection cycles fibre length

This study investigated the effects of polypropylene fibre (PF) reinforcement on the mechanical behaviour of clay soil Using clay soil and polypropylene fibres from China's Inner Mongolia and Hebei Provinces respectively a series of soil samples with 0% 1 5% 2 25% and 3% PF content by soil weight were subjected to compaction shear strength consolidation California bearing ratio and

Effects of thermomechanical refining conditions on the

Wheat straw fibre is prepared by a thermomechanical (TM) refining system This study investigated the effects of refining steam pressure (4 6 8 and 10 bar) and refiner speed (2500 and 3000 rpm) on the morphology and thermal properties of the resulting fibres After TM refining the fibres exhibited more surface irregularities and heterogeneities as well as decreased fibre length The fine

Wheat straw fibre is prepared by a thermomechanical (TM) refining system This study investigated the effects of refining steam pressure (4 6 8 and 10 bar) and refiner speed (2500 and 3000 rpm) on the morphology and thermal properties of the resulting fibres After TM refining the fibres exhibited more surface irregularities and heterogeneities as well as decreased fibre length The fine

EBSCOhost serves thousands of libraries with premium essays articles and other content including Thermal stability morphology and X-ray diffraction studies of dynamically vulcanized natural rubber/chitosan blends Get access to over 12 million other articles!

In this research composites based on treated tropical sawdust and polypropylene (PP) were prepared using hot press molding machine Raw sawdust was chemically treated with monomer 2 - ethylhexyl methacrylate in order to improve the mechanical properties of the composites The influence of the chemically treated sawdust on the physical and mechanical properties of sawdust-PP composites

Natural fibre reinforced plant structures are widely used in nature These plant structures combine light weight with superior mechanical properties The fibre orientations in plants are optimized to the occurring forces especially to the bending of plants by wind forces Therefore it is important to study the effect of fibre orientation to the mechanical properties of materials in a

Degradation study of date palm fibre/polypropylene composites in natural compatibilized samples are generally less stable than uncompatibilized ones as a result of the lower stability of the maleated polypropylene Irgastab and Tinuvin are found to be efficient stabilizers for PP/cellulose fibre composites In addition to the enhanced stability imparted by the presence of the fibres in the

Microstructure and thermal stability of polypropylene/bagasse composite foams: Design of optimum void fraction using response surface methodology Show all authors Sadegh Ghanbar Sadegh Ghanbar See all articles by this author Search Google Scholar for this author Omid Yousefzade Omid Yousefzade See all articles by this author Search Google Scholar for this author Farkhondeh

To study the thermal stability of composites TGA analy-sis was carried out Wear and frictional characteristics of developed composites were investigated under dry contact condition at different operating parameters such as applied load (10–30 N) sliding speed (1–3 m/s) and sliding distance (1000–3000 m) The experimental results indicate that incorporation of natural fibre mats into

Study of the fibre morphology stability in polypropylene

The objective of this paper is to understand the impact of the fibre morphology and process parameters on the final stability and microstructure of polypropylene-flax fibres composites In a first part we showed that after various extrusion or injection cycles fibre length and aspect ratio are quite similar no matter the initial length This point is crucial for the choice of initial fibre

Study on Morphology Rheology and Mechanical Properties of Thermoplastic Elastomer Polyolefin (TPO)/Carbon Nanotube Nanocomposites with Reference to the Effect of Polypropylene-grafted-Maleic Anhydride (PP-g-MA) as a Compatibilizer International Journal of Polymeric Materials 2011 60 (6) 384-397 DOI: 10 1080/00914037 2010 531810

This study investigates the effect of blending polycarbonate (PC) into polypropylene (PP) matrix polymer on water absorption properties and morphology The blends containing 5-35% of polycarbonate and 5% compatibilizer were compounded using twin - screw extruder and fabricated into standard tests samples using compression molding The compatibilizer used was polypropylene

Thermal stability of all the reinforced natural fibres was found to be around 205oC Decomposition of both cellulose and hemicellulose in the fibres took place at 310oC and above whereas the degradation of reinforced fibre composites took place above 430oC After the chemical treatment the FTIR results showed the reduction of OH bonds for all natural fibre composites used in this study

Experimental investigation of craze morphology of isotactic polypropylene using computed tomography Experimental investigation of craze morphology of isotactic polypropylene using computed tomography SOKKAR T Z N EL‐FARAHATY K A RASLAN M I HAMZA A A 2016-07-01 00:00:00 Journal of Microscopy Vol 263 Issue 1 2016 pp 97–105 doi: 10 1111/jmi 12381 Received 3

The study of interfacial properties is impor-tant to produce high-performance natural fibre composites (Awal et al 2011) In this study composite materials were prepared using post-consumed polypropylene (rPP) as a matrix and chemically modified banana fibres as reinforce-ment in different proportions The fibres were