Preparation and characterization of candelilla fiber (Euphorbia antisyphilitica) and its reinforcing effect in polypropylene composites

Morales‐Cepeda, Ana Beatriz; Ponce-Medina, Marielli E.; Salas-Papayanopolos, Homero; Lozano, Tomás; Zamudio, Minerva A.M.; Lafleur, Pierre G.

doi:10.1007/s10570-015-0776-y

Cited by 21 publications

(24 citation statements)

References 50 publications

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“…The observed tensile strength increase in the compatibilized composite was attributed to the enhanced compatibility between the components. This observation agreed with other research works reported elsewhere for PBAT composites and PP/candelilla composites . The enhanced fiber–matrix adhesion can be hypothesized as follows: the grafted MAH groups of MAH‐ g ‐PBAT are able to interact with hydroxyl groups of the miscanthus fibers, while the PBAT segments are miscible with the bulk PBAT blend matrix phase through cocrystallization .…”

Section: Resultssupporting

confidence: 92%

“…The enhanced compatibility between the PBAT and miscanthus fibers was consistent with observed mechanical property improvements. Similar observation has been reported in the compatibilized natural fiber composites …”

Section: Resultssupporting

confidence: 90%

“…There was no significant further weight loss observed up to 200 °C under air or nitrogen atmosphere, suggesting that the miscanthus fiber can be compounded with polymers up to 200 °C without severe thermal degradation. Furthermore, the thermal stability of the miscanthus fiber was found to be similar to other natural fibers . Beyond 200 °C, the degradation of miscanthus fiber was more pronounced under air compared to nitrogen atmosphere.…”

Section: Resultsmentioning

confidence: 61%

“…In these biocomposites, MAH-grafted PBS (MAH-g-PBS) and MAHgrafted PLA (MAH-g-PLA) improved the mechanical and thermal properties compared to corresponding uncompatibilized counterparts. 9 Morales et al 10 have improved the compatibility between the candelilla bagasse and polypropylene (PP) composites in the presence of MAH-grafted PP. Similarly, PBAT/ peanut husk composites were prepared with and without maleic anhydride-grafted PBAT (MAH-g-PBAT) compatibilizer.…”

Section: Introductionmentioning

confidence: 99%

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Biodegradable biocomposites from poly(butylene adipate‐co‐terephthalate) and miscanthus: Preparation, compatibilization, and performance evaluation

Muthuraj

Misra

Mohanty

2017

J of Applied Polymer Sci

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Miscanthus fibers reinforced biodegradable poly(butylene adipate‐co‐terephthalate) (PBAT) matrix‐based biocomposites were produced by melt processing. The performances of the produced PBAT/miscanthus composites were evaluated by means of mechanical, thermal, and morphological analysis. Compared to neat PBAT, the flexural strength, flexural modulus, storage modulus, and tensile modulus were increased after the addition of miscanthus fibers into the PBAT matrix. These improvements were attributed to the strong reinforcing effect of miscanthus fibers. The polarity difference between the PBAT matrix and the miscanthus fibers leads to weak interaction between the phases in the resulting composites. This weak interaction was evidenced in the impact strength and tensile strength of the uncompatibilized PBAT composites. Therefore, maleic anhydride (MAH)‐grafted PBAT was prepared as compatibilizer by melt free radical grafting reaction. The MAH grafting on the PBAT was confirmed by Fourier transform infrared spectroscopy. The interfacial bonding between the miscanthus fibers and PBAT was improved with the addition of 5 wt % of MAH‐grafted PBAT (MAH‐g‐PBAT) compatibilizer. The improved interaction between the PBAT and the miscanthus fiber was corroborated with mechanical and morphological properties. The compatibilized PBAT composite with 40 wt % miscanthus fibers exhibited an average heat deflection temperature of 81 °C, notched Izod impact strength of 184 J/m, tensile strength of 19.4 MPa, and flexural strength of 22 MPa. From the scanning electron microscopy analysis, better interaction between the components can be observed in the compatibilized composites, which contribute to enhanced mechanical properties. Overall, the addition of miscanthus fibers into a PBAT matrix showed a significant benefit in terms of economic competitiveness and functional performances. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45448.

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

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Biodegradable biocomposites from poly(butylene adipate‐co‐terephthalate) and miscanthus: Preparation, compatibilization, and performance evaluation

Muthuraj

Misra

Mohanty

2017

J of Applied Polymer Sci

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“…Ball‐milling is accepted as a routine pretreatment process for the synthesis of low‐molecular‐weight cellulose owing to its simplicity . This technique is not only helpful for the segmentation of the cellulose polymers, but also for the alteration of the crystallinity and the surface properties .…”

Section: Introductionmentioning

confidence: 99%

Crystallinity and surface state of cellulose in wet ball‐milling process

Nemoto

Ueno

Watthanaphanit

et al. 2017

J of Applied Polymer Sci

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We report the effect of wet ball‐milling process under mild neutral salt conditions on the alteration of crystallinity and surface state of microcrystalline cellulose (MC). The ball‐milling experiments were performed when the MC was immersed in H2O, NaCl aqueous solution, and KCl aqueous solution. Two collation groups, i.e., MC immersed in H2O2 and nonimmersed MC were additionally investigated for comparison. Except when H2O2 was present, the highest decrease in the cellulose crystallinity index (CI) was observed in dilute KCl. On the other hand, the CI of wet‐milled MC/NaCl was greater than that of the wet‐milled MC/H2O, however, still lower than that of the non‐immersed MC. XPS results showed that the carbonization progressed in dry‐milled MC and wet‐milled MC/NaCl surfaces. Though, the surface oxidization progressed in wet‐milled MC/H2O and wet‐milled MC/KCl. Lastly, the ball‐milling processes in different solutions led to various decreases of the crystallinity and the surface degradation due to carbonization and/or oxidization. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44903.

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Polypropylene (PP)‐Based Biocomposites and Bionanocomposites: State‐of‐the‐Art, New Challenges and Opportunities

Visakh

2017

Polypropylene‐Based Biocomposites and Bionanocomposites

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Preparation and characterization of candelilla fiber (Euphorbia antisyphilitica) and its reinforcing effect in polypropylene composites

Cited by 21 publications

References 50 publications

Biodegradable biocomposites from poly(butylene adipate‐co‐terephthalate) and miscanthus: Preparation, compatibilization, and performance evaluation

Biodegradable biocomposites from poly(butylene adipate‐co‐terephthalate) and miscanthus: Preparation, compatibilization, and performance evaluation

Crystallinity and surface state of cellulose in wet ball‐milling process

Polypropylene (PP)‐Based Biocomposites and Bionanocomposites: State‐of‐the‐Art, New Challenges and Opportunities

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