Study of lignin dispersion in low-density polyethylene

Diop, Amadou; Mijiyawa, Fayçal; Koffi, Demagna; Kokta, B. V.; Montplaisir, Daniel

doi:10.1177/0892705714556829

Cited by 22 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the hydrophilic nature of lignin, the pro-adhesive agent is obligatory, for example in polyolefin/lignin systems. In such triple component materials, a significant shift of selected mechanical properties is observed [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties

et al. 2020

View full text Add to dashboard Cite

Functional magnesium oxide-lignin hybrid materials were obtained via mechanical grinding. Their particle shape and size as well as physicochemical properties were characterized. MgO-lignin materials with biocomponent content (between 20% and 80% amount of total weight of filler) were used as a partially bio-structured modifier of low density polyethylene. The composites with 5% by weight of dual fillers and polyethylene grafted with maleic anhydride were compounded in a twin screw extruder working in co-rotating mode. The prepared blends were cast extruded using a single screw extruder and laboratory cast line. The properties of the obtained films were verified in case of their weldability. The seal strength as well as shear test and tear strength of the welded sheets were examined. The results showed that the shortest equivalent time required to perform correct weld occurred in the system, where the highest amount of lignin was used in hybrid filler MgO-L (1:5 w/w). From mechanical tests of welds, a sharp increase in ultimate seal force was noticed for almost all compositions with lignin, especially where MgO was coupled with a high lignin content. For those composition seal open force raised up to 37.0 N, from the value of 23.6 N, achieved for neat low density polyethylene (LDPE). Tear strength of weld sheets confirmed once more that LDPE composition with MgO-L (1:5 w/w) achieved the highest ultimate force with its value of 71.5 N, and it was ~20.0 N higher than in the case of neat LDPE.

show abstract

Section: Introductionmentioning

confidence: 99%

MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Previous studies investigated of the DMA results showed that the incorporation of jute fibres into HDPE increased the modulus and stiffness of the matrix with reinforcing effect imparted by the natural fillers that allowed a higher degree of stress transfer at the interface [21][22][23]. This study aims to investigate the improvement of the thermal and mechanical characterisations of LDPE plastic reinforced corn flour (CF) as a natural additive.…”

Section: Introductionmentioning

confidence: 99%

Characterisation and Performance of Low-Density Poly Ethylene-Corn Flour Composites

Awad

Khalaf

2018

Aksaray University Journal of Science and Engineering

View full text Add to dashboard Cite

This study aims to investigate the effects of corn flour fillers on the mechanical and thermal properties and surface morphology of low-density polyethylene composites. Low-density polyethylene (LDPE) and low density polyethylene/corn flour (LDPE/CF) with different loadings of CF (5%-20% w/w) were prepared in an internal mixer type Z-Blade mixer at 190°C and rotor speed of 50 rpm. Dynamic mechanical analysis (DMA), Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and tensile tests were analysed to investigate thermal and mechanical properties. Tensile tests displayed an increase in the tensile strength and modulus with the increase of CF loadings. The results of DMA tests showed significant improvements for the storage modulus and glass transition temperature, Tg. The results of TGA indicated that the addition of higher amounts of CF enhanced thermal stability.

show abstract

“…This idea is not only limit to Tunisia but it can be benefiting all the countries, which present large fields oases. Furthermore, LDPE is one of the most commonly used thermoplastic to develop composites reinforced by different natural materials (cellulose, 22 lignin, 23 starch, 24 etc.). Therefore, LDPE was chosen as the model base polymer matrix to prepare date stone-filled composites.…”

Section: Introductionmentioning

confidence: 99%

Composite materials based on low-density polyethylene loaded with date pits

Marzouk

Bettaieb

Khiari

et al. 2015

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

This work is devoted to investigate the available agricultural Tunisian waste: the date pits as reinforcing filler for thermoplastic matrix. The chemical composition of this reinforcing filler is found to be comparable to nonwood plants: its content comprises of 13% of extractibles, 22% of lignin, and 61% of holocellulose. Then, the lignocellulosic filler was used to prepare different composites films using Brabender mixing device. A series of composite film was established by different loadings of the date pits waste with 10–50% of the filler in 10% as an interval. The ensuing composites materials were then characterized by several techniques such as the morphology of the composites, which was investigated using scanning electron microscopy. The thermal properties of prepared materials were studied using differential scanning calorimetry and thermogravimetric analysis. Finally, the mechanical and water absorption properties were involved. The obtained results indicated that date pits–based particles enhanced the thermomechanical properties of the thermoplastic matrix and demonstrated that this available lignocellulosic biomass can be considered to be a promising filler material.

show abstract

Study of lignin dispersion in low-density polyethylene

Cited by 22 publications

References 15 publications

MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties

MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties

Characterisation and Performance of Low-Density Poly Ethylene-Corn Flour Composites

Composite materials based on low-density polyethylene loaded with date pits

Contact Info

Product

Resources

About