Effect of Maleated PLA on the Properties of Rotomolded PLA-Agave Fiber Biocomposites

González‐López, Martín Esteban; Pérez‐Fonseca, Aida Alejandra; Cisneros-López, Erick Omar; Manríquez‐González, Ricardo; Ramírez‐Arreola, Daniel E.; Rodrigue, Denis; Robledo‐Ortíz, Jorge R.

doi:10.1007/s10924-018-1308-2

Cited by 58 publications

(52 citation statements)

References 45 publications

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“…Moreover, the agave fiber spectrum treated with maleated PHBV also shows significant signal increases at 2890 and 1700 cm −1 , which correspond to the aliphatic backbone and the carbonyl groups of PHBV and maleic anhydride, respectively. Similar results were reported by González‐López et al 35 for the surface modification of agave fibers with maleic anhydride grafted to poly(lactic acid) (MAPLA).…”

Section: Resultssupporting

confidence: 88%

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Biodegradability and improved mechanical performance of polyhydroxyalkanoates/agave fiber biocomposites compatibilized by different strategies

Gallardo‐Cervantes

González‐García

Pérez‐Fonseca

et al. 2020

J of Applied Polymer Sci

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In this work, biocomposites made of polyhydroxyalkanoates (PHA) with natural fibers were produced via compression molding. In particular, polyhydroxybutyrate (PHB) and polyhydroxybutyrate‐co‐hydroxyvalerate (PHBV) were reinforced with 20 wt% of agave fibers. Different compatibilization strategies were investigated to improve the fiber‐matrix interaction: fiber surface treatment in PHA solution, fiber surface treatment in maleated PHA solution, fiber propionylation, and extrusion with maleated PHA. The biocomposites were characterized in terms of morphology, mechanical properties, water absorption, and biodegradability by CO2production tracking. In general, fiber propionylation was the best strategy for mechanical properties enhancement and water uptake decreasing. Biocomposites with propionylated fibers showed improved flexural strength (170% for PHB and 84% for PHBV). The flexural modulus was also enhanced with propionylated fibers up to 19% and 18% compared to uncompatibilized biocomposites (PHB and PHBV, respectively). Tensile strength increased by 16% (PHB) and 14% (PHBV), and the water absorption was reduced using propionylated fibers going from 6.6% to 4.4% compared with biocomposites with untreated fibers. Most importantly, the impact strength was also improved for all biocomposites by up to 96% compared with the neat PHA matrices. Finally, it was found that the compatibilization did not negatively modify the PHA biodegradability.

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Section: Resultssupporting

confidence: 88%

“…The tensile properties of the neat biopolymers and their biocomposites are presented in Figure 8. The tensile strength of both PHA decreased with agave fibers addition due to the low interfacial interaction between the biopolymer and the fibers 35 . However, some of the chemical treatments improved the tensile strength to some extent.…”

Section: Resultsmentioning

confidence: 97%

Biodegradability and improved mechanical performance of polyhydroxyalkanoates/agave fiber biocomposites compatibilized by different strategies

Gallardo‐Cervantes

González‐García

Pérez‐Fonseca

et al. 2020

J of Applied Polymer Sci

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“…For instance, Cisneros-L opez et al 9,10 performed surface treatments using trichlorobenzene or xylene to dissolve maleic anhydride grafted polyethylene (MAPE) yielding a similar improvement in terms of fiber modification and mechanical properties. Moreover, N-N-dimethylformamide (DMF) was used by Gonza´lez-L opez et al 11 to dissolve maleic anhydride grafted polylactic acid (MA-g-PLA), but no reports were provided in terms of the solvent recovery for its use in subsequent treatments for both economic and environmental reasons. MA-g-PLA has been extensively studied as a coupling agent for PLAnatural fibers biocomposites.…”

Section: Introductionmentioning

confidence: 99%

Fiber-matrix interface improvement via glycidyl methacrylate compatibilization for rotomolded poly(lactic acid)/agave fiber biocomposites

Robledo‐Ortíz

González‐López

Campo

et al. 2020

Journal of Composite Materials

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The growing interest in research and development of eco-friendlier materials makes attractive the use of bio-based and biodegradable polymers such as polylactic acid (PLA). However, the higher cost of PLA compared to conventional polymers limits its applications. Moreover, raw materials for rotational molding must be in a powder form, which further increases their cost. So, the main objective of this study was to use agave fibers to produce lower-cost PLA based rotomolded biocomposites (BC) without compromising its bio-sourced origin and to compare with a standard rotomolding resin: linear medium density polyethylene (LMDPE). To improve the fiber-matrix interface, a chemical surface treatment of the fibers with glycidyl methacrylate grafted polylactic acid (GMA-g-PLA) in solution was evaluated. The results showed that a better biocomposites’ morphology was obtained, especially with the fibers treated twice. The surface treatment was also shown to substantially improve the flexural and tensile properties of treated fiber biocomposites at higher fiber content (25% wt.) compared to those with untreated fiber. The surface treatment also led to a substantial reduction of the biocomposites porosity and water absorption. Overall, the samples were shown to have better mechanical properties than neat LMDPE while being eco-friendlier due to their bio-nature.

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“…17 Other thermoplastic polymers used in this process are polyamide, 18–21 polycarbonate, 22 polypropylene, 18,23–29 acrylonitrile butadiene styrene copolymer, 18 the ethylene-vinyl acetate, 18,30 and polyester amide copolymer. 31 Polylactic acid, 32–36 poly(epsilon-caprolactone), 37 polyether ether ketone, 38 polyvinylidene fluoride, 25,26 and polymethylmethacrylate 25 are also rotomolded. The use of rotomolding for thermosetting materials was also observed, such as epoxy resins, 39 polyurethane, 40 phenolic resins, 41 and unsaturated polyester.…”

Section: Introductionmentioning

confidence: 99%

Rotomolding and polyethylene composites with rotomolded lignocellulosic materials: A review

León

Escócio

Visconte

et al. 2020

Journal of Reinforced Plastics and Composites

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Rotomolding is a versatile process used in the manufacture of thermoplastic polymeric materials to produce large hollow plastic parts. The aim of this review article was to discuss the rotomolding process and show the properties of the polyethylene composite and rotomolded lignocellulosic fibers, which are processed for prolonged periods under temperature. The main process parameters studied are the shaft speed of the equipment, molding temperature, polymer particle size, polymer melt flow index, and amount of material, which must be well controlled to achieve a non-degraded product with homogeneous thickness and no porosity. Rotomolded composites containing sisal, pine, coir, banana, flax, and maple wood fibers, among others, have been evaluated primarily for their mechanical (impact, flexural, and tensile strength) and morphological properties. The type, content, and treatment of lignocellulosic fillers are the most widely studied variables in polyethylene-based rotomolded composites. Fiber content was the variable that most influenced mechanical properties, particularly impact strength and hardness due to the voids formed by the hydrodynamic volume between the polymer matrix and lignocellulosic filler. Chemical treatment of the fiber by mercerization with NaOH made it more hydrophobic and the addition of maleic anhydride-grafted polyethylene as a coupling agent improved the interfacial adhesion between the non-polar polymer matrix and polar filler. However, the best mechanical property results were obtained with the use of maleic anhydride-grafted polyethylene.

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Effect of Maleated PLA on the Properties of Rotomolded PLA-Agave Fiber Biocomposites

Cited by 58 publications

References 45 publications

Biodegradability and improved mechanical performance of polyhydroxyalkanoates/agave fiber biocomposites compatibilized by different strategies

Biodegradability and improved mechanical performance of polyhydroxyalkanoates/agave fiber biocomposites compatibilized by different strategies

Fiber-matrix interface improvement via glycidyl methacrylate compatibilization for rotomolded poly(lactic acid)/agave fiber biocomposites

Rotomolding and polyethylene composites with rotomolded lignocellulosic materials: A review

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