Scale-up of non-toxic poly(butylene adipate-co-terephthalate)-Chitin based nanocomposite articles by injection moulding and 3D printing

Balaji, S.; Devi, Ramamoorthy; Dhamodharan, R.

doi:10.1016/j.ijbiomac.2020.10.181

Cited by 10 publications

(12 citation statements)

References 48 publications

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“…16−21 Similarly, chitin nanowhiskers (CNWs), which have been useful as the reinforcement for thermoplastic-based composites during the past decades, 22 have also become one of the most abundant natural nanomaterials and are likewise receiving attention as promising nanoadditives for various 3DP formulations. 23,24 CNWs are isolated from chitin-rich polysaccharide-containing crustacean shells, which are otherwise considered waste during the food processing stage. 23−25 These shells can be processed through acid hydrolysis from which highly crystalline, rod-like CNWs with a typical aspect ratio of ∼10 (length ∼200−400 nm, diameter ∼20−30 nm), 25 a density of ∼1.425 g cm −3 , 26 and a longitudinal modulus of ∼150 GPa 22,27 can be obtained.…”

Section: ■ Introductionmentioning

confidence: 99%

“…28−30 Liu et al 28 reported that the improvement in thermal stability for CNW/carboxylated styrene-butadiene rubber composites is caused by the formation of physical crosslinks between the rubber matrix and CNW via hydrogen bonding. Thus, these intrinsic properties of CNWs have favored their use in an array of structural, 23−25 tissue engineering, 24,31 and catalysis applications. 32 The main industrial challenge of adopting the 3DP of biomass-based nanocomposites relies on the compatibility of the feedstock materials.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Such property enhancements are credited to the inclusion of low concentration of rigid and high-aspect-ratio nanofillers such as graphene oxide (GO), − carbon nanotubes (CNTs), and nanoclay, to name a few, which have been remarkably effective in reinforcing many conventional polymer feedstocks for 3DP. In the new era of sustainable manufacturing, cellulose nanocrystals (CNCs) lead the choice for biobased nanomaterials in 3D printing polymer nanocomposites due to their abundance, renewability, biodegradability, and outstanding thermomechanical properties. − Similarly, chitin nanowhiskers (CNWs), which have been useful as the reinforcement for thermoplastic-based composites during the past decades, have also become one of the most abundant natural nanomaterials and are likewise receiving attention as promising nanoadditives for various 3DP formulations. , …”

Section: Introductionmentioning

confidence: 99%

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Mechanically and Thermally Enhanced 3D-Printed Photocurable Polymer Nanocomposites Containing Functionalized Chitin Nanowhiskers by Stereolithography

Maalihan

Chen

Tamura

et al. 2022

ACS Appl. Polym. Mater.

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Additive manufacturing, or simply 3D printing (3DP), where objects are built through layer-wise material deposition, has gained significant academic and industrial attention as a result of the development of advanced and functional materials requiring rapid, customized, and flexible solutions. In the context of green manufacturing, diversifying environmentally and economically sustainable material portfolios is an essential endeavor for the success of 3DP technology that uses widely available, highly valuable, and renewable materials. In this study, we used stereolithography (SLA) for processing methacrylate-based photocurable resins containing crab shell-derived chitin nanowhiskers (CNWs), which are surface-functionalized by reactive acrylate groups. Results from full spectral, thermal, structural, and topological analyses corroborate not only the surface functionalization of CNWs but also indicate the presence of these photocurable CNW (pCNW) fillers in the 3D-printed nanocomposites. Owing to the strong interfacial bond induced by the physical and chemical crosslinking between the pCNW and methacrylate (MA) polymer matrix, the internally formulated nanocomposites displayed enhanced thermomechanical properties (e.g., storage modulus and glass transition temperature) compared to those of commercially available pure SLA resins. For instance, the inclusion of 0.5 wt % pCNW improved the tensile strength and stiffness to up to 78 and 71%, respectively, without compromising the toughness and ductility of the printed material. Accordingly, this result also evidences the compatibility between the filler and resin materials. Consequently, the formation of a crosslinked network in the nanocomposite structure results in a higher thermal stability and activation energy (i.e., up to ∼79%) for all the hybrid materials than the pristine MA. The high-resolution SLA print features, dimensional accuracy, and enhanced mechanical performance of our microstructure-forming functionalized chitin-based nanocomposites make them promising materials for a wide range of robust and high-performance industrial applications.

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Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanically and Thermally Enhanced 3D-Printed Photocurable Polymer Nanocomposites Containing Functionalized Chitin Nanowhiskers by Stereolithography

Maalihan

Chen

Tamura

et al. 2022

ACS Appl. Polym. Mater.

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“…Incorporating different types of filler into biobased polymeric matrices generally results in tensile strengths of less than 65 MPa and (low) reinforcing effectiveness values of less than 1.88, as shown in the Ashby plot (Figure d) and corresponding literature data (Table S7). − Inorganic nanofillers usually mechanically reinforce polymer matrices inefficiently due to weak filler/matrix affinities; they also raise sustainability concerns, as mentioned previously. In contrast, the use of SCHWs is associated with certain advantages.…”

Section: Resultsmentioning

confidence: 99%

Sustainable Poly(butylene adipate-co-furanoate) Composites with Sulfated Chitin Nanowhiskers: Synergy Leading to Superior Robustness and Improved Biodegradation

Thanh

Hào

Cho

et al. 2022

ACS Sustainable Chem. Eng.

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Plastic waste accumulation is a current societal crisis. Although replacing nondegradable plastics with biodegradable alternatives is one solution to this problem, conventional biodegradable plastics have low mechanical performance and require fastidious decomposition conditions. Consequently, fulfilling the industrial requirements of processability, end-use applicability, and post-use biodegradability is difficult. Therefore, integrating mechanical robustness and enhanced degradability into a single material is critical. Herein, we introduce a fully biomass-derived poly(butylene adipate-co-furanoate) (PBAF) composite with sulfated chitin nanowhiskers prepared by in situ polymerization. This approach efficiently disperses the nanofiller in the polymer matrix and creates beneficial interactions between the nanofiller and the furan rings of the polymer, resulting in excellent material properties. A PBAF composite film loaded with 0.1 wt % nanofiller is as strong as a nondegradable engineering plastic (i.e., poly(ethylene terephthalate)) and exhibits higher tensile strength (1.6-fold), tear toughness (1.4-fold), and degradation rate (1.7-fold) than neat PBAF. A structure–performance relationship study revealed that the nanofiller is accommodated close to the furan rings of the polymer, which results in noticeable segmental mobility and structural change, whereas the benzene rings of conventional poly(butylene adipate-co-terephthalate) show negligible change due to its sturdy crystalline phase. The developed all-organic composite is a sustainable alternative to conventional plastics.

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“…PBAT is an aliphatic-aromatic copolyester with both aliphatic degradability and excellent aromatic mechanical properties. Some studies have successfully employed 3D printing of PBAT [30,31]. Other studies have also demonstrated the 3D printing properties of SA, which has been widely used in the 3D printing of biological materials [32].…”

Section: D Printing Of Pbat/sa Vascular Stentsmentioning

confidence: 99%

Poly (butylene adipate-co-terephthalate)/Sodium alginate blends have superior characteristics and can be used to fabricate vascular stents

Qiu¹,

Xia²,

Sun³

et al. 2022

Mater. Res. Express

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To investigate the physical properties and in vitro biocompatibility of Poly (butylene adipate-co-terephthalate) and Sodium alginate (PBAT/SA) melt blending, as well as feasibility of using PBAT/SA blending materials to fabricate vascular stents through 3D printing technology. PBAT/SA composites were prepared by melt blending, and then related physical properties were assessed through FTIR, SEM, DSC, and water contact angle tests. The effects of the PBAT/SA blend on cell morphology, ROS, apoptosis, and cell proliferation were analyzed in vitro. In addition, we employed a 4-axis 3D printer to evaluate the feasibility of using PBAT/SA blend materials to fabricate vascular stents. We successfully prepared PBAT/SA melt blended materials. FTIR and SEM analyses demonstrated that PBAT and SA were compatible, while DSC data confirmed that the addition of SA improved the thermal properties of PBAT. Besides, water contact angle analysis showed that SA improved the hydrophilicity of PBAT. In addition, we successfully fabricated PBAT/SA vascular stent using 4-axis 3D printing technology. Our data showed that PBAT and SA are compatible, and the addition of SA enhances the thermal properties and hydrophilicity of PBAT. In addition, PBAT/SA blend materials can be fabricated into vascular stents using 4-axis 3D printing technology.

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Scale-up of non-toxic poly(butylene adipate-co-terephthalate)-Chitin based nanocomposite articles by injection moulding and 3D printing

Cited by 10 publications

References 48 publications

Mechanically and Thermally Enhanced 3D-Printed Photocurable Polymer Nanocomposites Containing Functionalized Chitin Nanowhiskers by Stereolithography

Mechanically and Thermally Enhanced 3D-Printed Photocurable Polymer Nanocomposites Containing Functionalized Chitin Nanowhiskers by Stereolithography

Sustainable Poly(butylene adipate-co-furanoate) Composites with Sulfated Chitin Nanowhiskers: Synergy Leading to Superior Robustness and Improved Biodegradation

Poly (butylene adipate-co-terephthalate)/Sodium alginate blends have superior characteristics and can be used to fabricate vascular stents

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