Sodium dodecyl sulfate (SDS) as a filler treatment: effects on mechanical, morphological and swelling properties of poly (vinyl chloride) (PVC)/epoxidized natural rubber (ENR)/kenaf core powder composites

Majid, Rohani Abdul; Ismail, Hanafi; Taib, R. Mat

doi:10.1080/14328917.2015.1131416

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…A clear evidence for the weak interfacial area between SPEEK matrix and ENR-50 was observed with an increasing of ENR-50 loading [9,10]. Fig 1 (c and d) exposed that the particle size of ENR-50 decrease while the domain size increase with the increasing of ENR-50 content from 1.5 wt% to 2.5 wt%.…”

Section: Resultsmentioning

confidence: 84%

The Morphology Effect on the Selectivity of SPEEK/ENR Membranes for Direct Methanol Fuel Cell

Azman

Jaafar²,

Salleh³

et al. 2017

MSF

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The objective of this study is to investigate the morphology effect of ENR-50 content on the conductivity and methanol permeability of SPEEK/ENR-50 membranes for DMFC application. Three different ratios (9.5:0.5, 8.5:1.5 and 7.5:2.5) of blended SPEEK/ENR-50 membranes were prepared via solution intercalation method. The cross sectional images of the all SPEEK/ENR-50 membranes studied by SEM shows an existence of ENR-50 droplets in SPEEK matrix which decrease in size with an increasing of ENR-50 content from 1.5 wt% to 2.5 wt%. The study of the performances of the blended membranes shows that the proton conductivity and methanol permeability of the membranes decrease with an increasing of ENR-50 content. However, the proton conductivity of the blended membrane with 0.5 wt% ENR-50 content (9.66x10-3 S cm-1) proven higher than pristine SPEEK but lower than Nafion 117. The barrier performance of all SPEEK/ENR-50 membranes was enhanced compared to the expensive Nafion 117 membrane and pristine SPEEK. Consequently, by incorporating ENR-50 content into SPEEK membrane, the selectivity of the membranes has considerably increased.

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Section: Resultsmentioning

confidence: 84%

The Morphology Effect on the Selectivity of SPEEK/ENR Membranes for Direct Methanol Fuel Cell

Azman

Jaafar²,

Salleh³

et al. 2017

MSF

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“…The work showed that the tensile properties and thermal stability increased due to improved fiber/matrix interface. Other works have also reported on the favorable effect of SDS on various composite characteristics 46,47 …”

Section: Introductionmentioning

confidence: 93%

“…Other works have also reported on the favorable effect of SDS on various composite characteristics. 46,47 Although alkali treatment is a widely used technique to modify natural fibers in order to improve fiber/matrix interface of their composites, there has not been a study that investigates the effect of SDS on the efficacy of alkali treatment of hemp fibers. In this work, it was proposed that adding SDS would improve the efficiency of hemp fiber alkali treatment by removing the waxy layer on the fiber surface and facilitating the access of hydroxyl ions into the fiber structure, leading to more efficient removal of fiber ingredients like pectin, lignin, and hemicelluloses.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonication‐assisted alkali treatment of hemp fibers to improve the fiber/matrix interface of hemp/epoxy composites: The influence of sodium dodecyl sulfate surfactant

Karaduman,

Secinti‐Klopf,

Sahbaz Karaduman

2024

Polymer Composites

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Alkali pretreatment of fibers is an efficient technique to enhance fiber/matrix bonding in natural fiber composites. This study investigates if the addition of sodium dodecyl sulfate (SDS) surfactant increases the efficacy of alkali treatment of hemp fibers. SDS concentrations ranging between 2 and 10% wt/wt were used with a constant (10% wt/wt) NaOH concentration. Fiber surfaces were observed with scanning electron microscopy (SEM). Fiber surfaces were cleaner when SDS was used compared with alkali treatment with no SDS added indicating the elimination of substances such as lignin, waxes, hemicelluloses, and pectin. Fourier‐transform infrared spectroscopy and TGA studies also confirmed the removal of these substituents. Mechanical performance of the composites was evaluated via static and dynamic tests. The tensile strength and modulus improved 24.9% and 13.6% respectively with the addition of 10 wt% SDS. The flexural strength and modulus also showed an improvement of 22.4% and 26.3% respectively when 10 wt% SDS was added to alkali solution. Dynamic mechanical tests showed that the storage and loss modulus of the composites increase with SDS/alkali treatment. Results indicated that the use of SDS in alkali treatment notably improves the composite performance which is attributable to more efficient elimination of noncellulosic constituents from fiber structure.Highlights Sodium dodecyl sulfate (SDS) improves the efficacy of NaOH treatment of hemp. Removal of noncellulosic substances from fibers was facilitated by SDS. Ultrasound/SDS assisted alkalization of fibers improved composite properties.

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Disentangling the influence of microplastics and their chemical additives on a model detritivore system

Ockenden

Northcott²,

Tremblay

et al. 2022

Environmental Pollution

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Sodium dodecyl sulfate (SDS) as a filler treatment: effects on mechanical, morphological and swelling properties of poly (vinyl chloride) (PVC)/epoxidized natural rubber (ENR)/kenaf core powder composites

Cited by 5 publications

References 20 publications

The Morphology Effect on the Selectivity of SPEEK/ENR Membranes for Direct Methanol Fuel Cell

The Morphology Effect on the Selectivity of SPEEK/ENR Membranes for Direct Methanol Fuel Cell

Ultrasonication‐assisted alkali treatment of hemp fibers to improve the fiber/matrix interface of hemp/epoxy composites: The influence of sodium dodecyl sulfate surfactant

Disentangling the influence of microplastics and their chemical additives on a model detritivore system

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