Facile Fabrication of Methylcellulose/PLA Membrane with Improved Properties

Abstract

With the rapid exhaustion of fossil resources, and environmental pollution relative to the use of fossil-based products, developing eco-friendly products using biomass and/or biodegradable resources is becoming increasingly conspicuous. In this study, ecofriendly and biodegradable composite membranes containing varying MC/PLA (methylcellulose/polylactic acid) mass ratios were prepared. The properties and structures of the MC/PLA membranes were studied by mechanical testing, 13C NMR techniques, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and hot compression. The MC/PLA membranes displayed markedly improved tensile strength and elongation at the MC/PLA mass ratio range of 99:1 to 9:1. The tensile strength and elongation of the MC/PLA (97:3) membrane was found to be the optimum, at 30% and 35% higher than the neat MC, respectively. It was also found that hot compression could improve the tensile strength and elongation of the membranes. At the same time, the membranes showed enough good thermal stability. In addition, the effect of MC/PLA mass ratio on morphologies of the membranes were studied by microscopy technique.

Eco-Friendly High-Performance Poly(methyl methacrylate) Film Reinforced with Methylcellulose

“…Figure gives the XRD patterns of selected samples. MC displays two characteristic diffractions of the semicrystalline structure at 2θ = 8.9 and 19.7°. ,− PMMA exhibits an amorphous structure with two broad diffraction peaks at around 2θ values of 15 and 30°. , In the XRD patterns of the PMMA/MC films, the diffraction signal for MC at 8.9° is absent, and the intensity of the diffraction signal at 19.7° is decreased. At the same time, the intensity of the diffraction signal at 19.7° for MC becomes weaker with an increase in the amount of PMMA in proportion to MC.…”

“…MC displays two characteristic diffractions of the semicrystalline structure at 2θ = 8.9 and 19.7°. 17 , 31 − 34 PMMA exhibits an amorphous structure with two broad diffraction peaks at around 2θ values of 15 and 30°. 7 , 35 In the XRD patterns of the PMMA/MC films, the diffraction signal for MC at 8.9° is absent, and the intensity of the diffraction signal at 19.7° is decreased.…”

Composites from biodegradable and biocompatible methylcellulose, poly(d,l‐lactide‐co‐glycolide) and poly(1,4‐butylene succinate) with enhanced properties

“…As shown in Figure 4(a), PLGA was amorphous, and no diffraction peak was observed. MC exhibited two broad diffraction peaks at about 2θ = 8.9° and 2θ = 19.7° which correspond to the [110] and [020] planes, respectively, indicating that MC was a semi‐crystalline 14,31–36 . It was also found that the peak at 2θ = 8.9° disappeared, and the intensity of the peak at 2θ = 19.7° in the XRD curves of MC/PLGA films considerably decreased, suggesting that after the composite of MC with PLGA, the crystallinity of MC is reduced.…”

High performance polyvinyl alcohol/polylactic acid materials: Facile preparation and improved properties

“…Moreover, it can match conventional synthetic plastics in terms of some of its properties (e.g., strength, stiffness, and gas permeability) 35–37 . At the same time, it is also an important reinforcement additive to improve the biocompatibility, biodegradability and mechanical properties of composites 38,39 …”