Lactic acid/wood-based composite material. Part 1: Synthesis and characterization

Noël, Marion; Fredon, Emmanuel; Mougel, Éric; Masson, Daniel; Masson, Éric; Delmotte, Luc

doi:10.1016/j.biortech.2009.04.040

Cited by 29 publications

(16 citation statements)

References 28 publications

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“…Composites of PLA and CA thus offer advantages in both mechanical, biocompatibility, and cost 10, 11. Furthermore, composites of biodegradable polymers and natural fibers have demonstrated complete degradation in soil or compost without the emission of any toxic or noxious components and have thus received much attention 12, 13…”

Section: Introductionmentioning

confidence: 99%

Polyester/cellulose acetate composites: Preparation, characterization and biocompatible

Wang

Chou

et al. 2012

J of Applied Polymer Sci

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The biocompatibility, morphology, and mechanical thermal properties of composite materials composed of maleic anhydride‐grafted polylactide (PLA‐g‐MA) and cellulose acetate (CA) were evaluated. Composites containing maleic anhydride‐grafted PLA (PLA‐g‐MA/CA) exhibited noticeably superior mechanical properties due to greater compatibility between the two components. The dispersion of CA in the PLA‐g‐MA matrix was highly homogeneous as a result of ester formation, and the consequent creation of branched and cross‐linked macromolecules, between the carboxyl groups of PLA‐g‐MA and hydroxyl groups in CA. The human skin dermal fibroblasts (FBs) seeded on these two novel series membranes to verify the wound dressing characterization properties. With time‐dependent course, the FBs proliferation demonstrated a better increasing performance on the series membranes of PLA/CA than PLA‐g‐MA/CA. The immunofluorescent staining illustrated FBs with normal morphological features. The collagen amount from FBs on the PLA/CA series was 25% higher than that seeded on regular culture‐plates after 7 days incubation. With CA content from 0 to 20%, the collagen amount increased apparently and up to the position of CA20%. Otherwise, with PLA‐g‐MA membranes, the collagen amount showed moderate stimulations. The SEM image presented secreted collagen from FBs on the PLA/CA membrane, indicating the bio‐functional properties of these membranes. The above result analysis, this PLA‐g‐MA/CA composites has good mechanical properties and biocompatible, in the future when use adjusts the formula according to the functionality, may increase the product utility. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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Section: Introductionmentioning

confidence: 99%

Polyester/cellulose acetate composites: Preparation, characterization and biocompatible

Wang

Chou

et al. 2012

J of Applied Polymer Sci

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“…After impregnation, the wood pieces were placed in an oven at 120°C for 1 h-the minimum time and temperature required for polymerization [7]. The samples were then washed and weighed; it was concluded that each sample contained 15% wt/wood lactide on average.…”

Section: Polymerization and Dehydrationmentioning

confidence: 99%

“…In particular, poly (lactic acid) (PLA), a polymer known for its biodegradable properties [6], has been previously synthesized via in situ polymerization of lactide oligomers. Noel et al [7,8] shows that the oligomers, which are larger in size compared to monomers, became entrapped within the wood structure and thus did not fully polymerize.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable, flame retardant wood-plastic combination via in situ ring-opening polymerization of lactide monomers

Guo

Stone

et al. 2017

J Wood Sci

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A wood-plastic combination (WPC) was created via in situ polymerization of the L-lactide monomer (3S)cis-3,6-dimethyl-1,4-dioxane-2,5-dione. Commercial poplar boards (Liriodendron tulipifera) were impregnated with the flame retardant chemical resorcinol bis(diphenyl phosphate)(RDP). These samples were then soaked in a solution of the monomer and deionized water with sulfuric acid 5% wt/wood as a catalyst for polymerization. The wood and solution were placed in a vacuum oven for impregnation and polymerization of the monomers. The wood RDP combination was not flame retardant and had an Izod impact strength that was slightly smaller than neat wood sample. Addition of lactide monomer tripled the Izod impact strength relative to wood, and scanning electron microscope (SEM) images indicated that a polymerized coating had formed which reinforced the porous wood structure. Addition of all three components produced a synergy. The Izod impact strength of the material was nearly 14 times greater and the WPC was flame retardant surpassing the stringent UL-94-V0 requirement.

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“…65−67 To reduce the use of fossil resources, PLA/wood composites were prepared by impregnation and polymerization of lactic acid in the wood structure. 68,69 Although the physical properties and hardness of wood could be improved, the mechanical properties were not strongly affected, and the shearing resistance was reduced. This could be due to the rigorous polymerization conditions of PLA, such as strong acid catalysts and a high temperature that could degrade the wood components.…”

Section: ■ Introductionmentioning

confidence: 99%

Environmentally Benign Wood Modifications: A Review

Dong

Wang

et al. 2020

ACS Sustainable Chem. Eng.

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Wood modification, an efficient approach to enhance the intrinsic properties of wood, has been extensively studied for decades. Due to growing environmental awareness, the sustainability of wood modification has received more attention. Generally, the sustainability in wood modification should consist of three aspects: an environmentally friendly processes, renewable modifying agents, and nontoxic and biodegradable resultant products. Recently, some biobased modifying agents obtained from renewable feedstocks were explored for substituting the petroleum-based ones. This review focuses on representative wood modification methods, including furfurylation, impregnation with natural products and biodegradable polymers, and chemical modification with sustainable reagents, since these methods have the potential to enhance wood properties. However, there are many challenges for using these agents, including effectiveness in penetration, evenness in distribution, and durability. The cost, process conditions, and equipment of these methods could also be challenges for scaling up. In addition, current studies mainly pay attention to the green reagent selection and property enhancement, rather than environment behavior evaluation of the resultant products. Effort should be made to evaluate the ecotoxicity and degradation behavior of the modified wood since it can help us determine whether the new formulations are sustainable. Much work needs to be done to overcome the obstacles above-mentioned and to develop efficient modification methods with a minimum environmental impact.

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Lactic acid/wood-based composite material. Part 1: Synthesis and characterization

Cited by 29 publications

References 28 publications

Polyester/cellulose acetate composites: Preparation, characterization and biocompatible

Polyester/cellulose acetate composites: Preparation, characterization and biocompatible

Biodegradable, flame retardant wood-plastic combination via in situ ring-opening polymerization of lactide monomers

Environmentally Benign Wood Modifications: A Review

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