Characterization of composite materials based on LDPE loaded with agricultural tunisian waste

Mansouri, Samar; Khiari, Ramzi; Bettaieb, Fedia; Abou-Zeid, Ragab E.; Malek, Fouad; Mhenni, Farouk

doi:10.1002/pc.23001

Cited by 11 publications

(12 citation statements)

References 44 publications

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“…It indicates that the values of T m of all the antioxidant films did not change dramatically, ranging from 108.16°C (LMA4) to 108.68°C (LMA0.5), which means that the addition of the assembly into the polymer had negligible effect on the melting temperature of the LDPE films. Similar results have been found in other reports , which indicates that the assembly added had no significant nucleation activity in the polymer . This phenomenon may be attributed to the relatively low addition amount and could be further taken good use in the application of this antioxidant packaging films.…”

Section: Resultssupporting

confidence: 89%

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Influence of α‐tocopherol/MCM‐41 assembly on physical and antioxidant release properties of low‐density polyethylene antioxidant active films

Sun

Wang

et al. 2017

Polymer Engineering & Sci

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α‐Tocopherol, usually used as an antioxidant in the packaging industry, was loaded into inner pore channels of Mobil composition of matter NO.41(MCM‐41) mesoporous silica material to control its release from packaging materials into fatty food simulant. Different amount of α‐tocopherol/MCM‐41 assembly were coextruded with low‐density polyethylene (LDPE) granulates to prepare antioxidant active films by flat extrusion. The influence of the assembly addition amounts on the properties of LDPE films including physical properties and antioxidant release profiles were thoroughly investigated. The results showed that the addition amounts obviously influenced the physical properties of LDPE films as well as migration profiles of the antioxidant. As compared to pure LDPE, tensile strength of LDPE films loaded with 4% (w/w) of the assembly decreased by ∼20% on machine direction. As to release profiles of the antioxidant, LDPE films loaded with 0.2% of the assembly showed the fastest release rate, and the highest amount of the assembly gave rise to the longest release period, which was ∼23% longer than that of 0.2% additives. These results may offer theoretical instructions for further industrial applications of LDPE antioxidant active films loaded with α‐tocopherol/MCM‐41 assembly. POLYM. ENG. SCI., 58:1710–1716, 2018. © 2017 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 89%

“…The degree of crystallinity (χ c ) was calculated using Eq. :

χ_{c} = \frac{{Δ H}_{m}}{{Δ H}_{m}^{0}} \times 100

where Δ

H_{m}^{0}

is the fusion enthalpy of LDPE (285 J/g) .…”

Section: Methodsmentioning

confidence: 99%

Influence of α‐tocopherol/MCM‐41 assembly on physical and antioxidant release properties of low‐density polyethylene antioxidant active films

Sun

Wang

et al. 2017

Polymer Engineering & Sci

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“…It can be seen that the modulus increases significantly (30%, 48%, and 72% for LG20L, LG40L and LG60L; and 36%, 77%, and 144% for LG20S, LG40S, and LG60S) when compared to the neat matrix. This result agrees with the tensile mechanical test (Table ) and is explained by the incorporation of rigid glass beads reinforcing the matrix and yielding a homogeneous and continuous structure in the final composite . Table also shows that E' 30°C is higher for small beads by 5% (for LG20S vs. LG20L), 19% (for LG40S vs. LG40L), and 42% (for LG60S vs. LG60L).…”

Section: Resultssupporting

confidence: 88%

Effect of glass bead size and content on the thermomechanical properties of polyethylene composites

Chimeni

Vallée

Sorelli

et al. 2017

Polymer Engineering & Sci

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This work investigates the effect glass bead size (80 < Φ < 120 μm and 170 < Φ < 325 μm) and content (0, 20, 40, and 60 wt%) on the properties of virgin and recycled polyethylene (LDPE) composites. In particular, the composites were produced by simple dry‐blending and compression molding. From the samples produced, a morphological analysis was used to explain the properties of the composites in terms of physical, thermal, and mechanical properties. The results showed that the main failure was particle pull‐out due to poor interfacial adhesion. As expected, the density, tensile modulus, and storage modulus increased with glass content, while creep and recovery substantially decreased. In all cases, smaller particle sizes had a more important effect on the composite behavior due to their higher specific surface area. Overall, significant difference was observed between virgin and recycled LDPE due to the presence of contamination in the latter. Nevertheless, the results show that virgin polyethylene can be substituted by recycled polyethylene reinforced by glass particles, especially when smaller sizes are used and these materials can find applications as indoor or outdoor floor tiles. POLYM. ENG. SCI., 58:1826–1836, 2018. © 2017 Society of Plastics Engineers

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“…For example, water absorption for LDPE reinforced with date palm wood powder exceeds 10% for 40% fiber content after ∼1 month . This value reach 15% for vine stem‐reinforced LDPE composite . In our case, reinforcing LDPE with CFs limits the water absorption.…”

Section: Resultsmentioning

confidence: 56%

Cellulose filaments reinforced low‐density polyethylene

et al. 2017

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Low-density polyethylene (LDPE) was reinforced with cellulose filaments (CF) and the influence of CF loading on the mechanical properties and water absorption behavior was evaluated. A maximum of 40% (w/w) CF content was found to provide excellent mechanical properties with respect to neat LDPE. A comparison of mechanical properties of LDPE-CF composites and LDPE-glass fiber (GF) composites showed a potential advantage of CF as reinforcement in term of cost and specific properties over conventional GF reinforcement. Moreover, no improvement in the mechanical properties was observed when a compatibilizing agent, such as maleic anhydride modified polyethylene was added during the manufacturing of LDPE-CF composites. POLYM. COMPOS., 00:000-000, 2017.

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Characterization of composite materials based on LDPE loaded with agricultural tunisian waste

Cited by 11 publications

References 44 publications

Influence of α‐tocopherol/MCM‐41 assembly on physical and antioxidant release properties of low‐density polyethylene antioxidant active films

Influence of α‐tocopherol/MCM‐41 assembly on physical and antioxidant release properties of low‐density polyethylene antioxidant active films

Effect of glass bead size and content on the thermomechanical properties of polyethylene composites

Cellulose filaments reinforced low‐density polyethylene

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