Degradation study of date palm fibre/polypropylene composites in natural and artificial weathering: mechanical and thermal analysis

Abu-Sharkh, Basel F.; Hamid, Halim

doi:10.1016/j.polymdegradstab.2003.10.022

Cited by 171 publications

(93 citation statements)

References 16 publications

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“…The drop increases and the PP loses more than 50% of its strength after 9 months of exposure. A minor increase in strength was observed at long exposure times in natural weathering possibly due to enhanced interfacial adhesion by degradation as a result of the formation of the carbonyl groups in PP, which is more compatible with the cellulose fibre surface [54]. Tensile strength of neat PP sample after 3 months exposure to UV radiation is decreased by 92.57% whereas that for 10% sisal fibre loading is 58%, for 20% sisal fibre loading is 37% and for 30% sisal fibre loading is 23% as studied by Joseph et al [34].…”

Section: Natural Weatheringmentioning

confidence: 99%

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A review on the degradability of polymeric composites based on natural fibres

et al. 2013

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The applications of natural fibre/polymer composites in civil engineering are mostly concentrated on non-load bearing indoor components due to its vulnerability to environmental attack. This paper evaluates the characteristics of several natural fibre composites exposed to moisture, thermal, fire, and ultraviolet degradation through an extensive literature review. The effects of chemical additives such as fibre treatments, fire retardants and UV stabilizers are also addressed. Based on the evaluation conducted, optimum fibre content provides strength in a polymer composite but it also becomes an entry point for moisture attack. Several fibre treatments are also being used to improve fibre/matrix interface, thereby increasing moisture durability. However, the treated fibres were found to behave poorly when exposed to weather. The addition of UV stabilizers and fire retardants are suggested to enhance outdoor and fire performance of natural fibre/polymer composite but compromises its strength. Therefore, from the collected data and various experimental results, it was concluded that an optimum blend ratio of chemical additives must be employed to achieve a balance between strength and durability requirements for natural fibre composites. Dear EditorI would like to submit a paper entitle of "Degradability of Polymeric Composites Based on Natural Fibres" to the materials and design. This paper address important issues related to the degradation of natural fibres in polymeric composites. I believe the paper has interest to the reader of the journal and will be beneficial for many researchers in the field of materials and design considering the degradation of polymer and bio-materials. I would like to confirm that the paper has not been sent to any journal before and not under review. I hope you can send the paper fore reviewing process. Editor: Thank you for submitting your review paper. There are no technical issues. However, there are areas of the paper that need attention as follows: 1.Include more keywords -you are allowed up to 6 keywords.The keywords have been updated and highlighted in the revised version as Keywords: natural fibres; polymer composites; civil applications; characteristics degradation; weathering. 2.Include your personal university telephone number in the contact details in the paper.In the revised version it has been included as Reference 20 is incomplete. Updated 10.Reference 37 is incomplete. Updated 11.Reference 40 is incomplete. This paper is much related to the topic and it is in press. I added the DOI: 10.1080/15440478.2012.733149 . this is accepted in the production stage 12.Reference 65 is incomplete. Removed 13.In view of the above, please check all references for accuracy and completeness. Detailed Response to Reviewers JMAD-D-12-03220R1 2All the references are cited using endnote software. This makes it easy to update and cite the references in the required format at the publication stage. 14. Remove page numbers from list of table and figure captions. Page numbers removed...

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Section: Natural Weatheringmentioning

confidence: 99%

“…To some extent, thermal degradation of polyethylene/cellulose composites during processing undergoes oxidation process which results in enhanced adhesion between polymer and cellulose fibres [54].…”

Section: Thermogravimetric Analysis (Tga)mentioning

confidence: 99%

A review on the degradability of polymeric composites based on natural fibres

et al. 2013

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“…New environmental policies are noticeably stricter. Research on new materials has consequently intensified, and industrial competition for economical materials that preserve the environment has resulted in the use of natural fibers for plastic reinforcement 1,5,6 . Most of the polymeric materials that are currently in use are thermoplastics; this classification includes plastics that soften and flow for molding or manipulation when the temperature and pressure are modulated.…”

Section: Introductionmentioning

confidence: 99%

The Recycling of Sugarcane Fiber/Polypropylene Composites

et al. 2015

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Mechanical recycling is utilized to reuse waste and obtain other plastic products via the reprocessing of a material in industrial equipment. Natural fiber composites have become more popular in recent years; however, these composites' mechanical behavior remains less well-understood than single polymers' behavior after recycling. Therefore, the objective of this work was to study the degradation of different sugarcane fibers/polypropylene composites using new grinding and injection processes and to evaluate the mechanical properties of these materials using analysis of variance (ANOVA). This work reveals the mechanical behaviors of recycled natural fiber composites that contain thermal stabilizer additives. Polypropylene composites reinforced with differently treated bagasse and straw fibers (10 and 20 wt%/PP) were obtained through melt mixing using a high-intensity thermokinetic mixer and were subsequently injected. The recycled composites exhibited decreased tensile strength relative to the original composites. However, when thermal stabilizers were added, the mechanical properties were maintained or increased, depending on the fiber and additive types.

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“…The effective use of wood-based particles as fillers or reinforcements in the thermoplastic polymers requires a fundamental understanding of the stability of the composite materials. The majority of lignocellulosic fillers have low degradation temperatures (*200°C), which make them inadequate for processing with thermoplastics with processing temperatures above 200°C [36][37][38]. Decomposition of wood components, such as cellulose and lignin creates voids inside the composite, causing reduction of the mechanical properties [39].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, no effect or even a negative effect of compatibilization process of lignocellulosic fillers on thermal stability has been reported in other studies. Sharkh et al presented [36] that the compatibilized date palm fibre/polypropylene composites are generally less stable than uncompatibilized ones as a result of the lower stability of the maleated polypropylene. Pukanszky [45] claimed that maleated polypropylene accelerates degradation during processing and deteriorates the properties of PP composites.…”

Section: Introductionmentioning

confidence: 99%

The thermo-oxidative stability and flammability of wood/polypropylene composites

Borysiak

2014

J Therm Anal Calorim

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The main aim of the study was to evaluate the thermo-oxidative stability and flammability of wood/polypropylene composites. The composites were obtained by extrusion and compression moulding with chemical modification of wood in order to improve adhesion. The composites were characterised by differential scanning calorimetry and cone calorimetry, providing such parameters as the oxidation induction time and a few parameters describing flammability, e.g. time to ignition, heat release rate, mass loss rate, heat of combustion, specific extinction area and emission of toxic gases. The results illustrate a considerable effect of the presence of wood and chemical modifications of lignocellulosic filler on the thermo-oxidative stability and character of combustion of the composites studied. The information provided in the paper contributes towards the correct choice of chemical modification of wood that would improve mechanical properties of the composites and towards getting composite materials of target thermo-oxidative stability and flammability.

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Degradation study of date palm fibre/polypropylene composites in natural and artificial weathering: mechanical and thermal analysis

Cited by 171 publications

References 16 publications

A review on the degradability of polymeric composites based on natural fibres

A review on the degradability of polymeric composites based on natural fibres

The Recycling of Sugarcane Fiber/Polypropylene Composites

The thermo-oxidative stability and flammability of wood/polypropylene composites

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