Study on Mechanical and Thermal Properties of Poly(Lactic acid)/Poly(Butylene adipate-co-terephthalate)/Office Wastepaper Fiber Biodegradable Composites

Xu, Chunye; Zhang, Xiaolin; Xiao, Jin; Nie, Sunjian; Yang, Rui

doi:10.1007/s10924-019-01428-9

Cited by 27 publications

(27 citation statements)

References 30 publications

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“…Biodegradable green composites have emerged as the most high-potential substitute for petroleum matrix plastic to reduce concerns regarding the scarcity of oil resources and environmental pollution. [1][2][3][4] As biomass biodegradable plastic, poly(lactic acid) (PLA) has drawn interest because of its excellent biocompatibility, outstanding transparency, and easy processability. [5] However, the application of PLA is limited by its disadvantages, including high brittleness, low degree of crystallization, and hydrophily.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, natural fibers are available for plastic reinforcement owing to their high specific strength, renewability, and environmentally friendliness. [9,10] Consequently, composites have been prepared by blending PLA with traditional natural fibers, agricultural and forestry residues, industrial coproducts, and recycled fibers [3] such as kenaf, wood powder, [11,12] and straw fibers. The objective aims to reduce fabrication costs and improve the properties of the material.…”

Section: Introductionmentioning

confidence: 99%

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Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Zhang

et al. 2020

J of Applied Polymer Sci

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Environment friendly composites with favorable mechanical properties and low water absorption performance were successfully produced from poly(lactic acid) (PLA), office waste paper fiber (OWF), and coupling agents. The perfect sample was easily manufactured by melting–blending and injection molding. The PLA/OWF composites were comparable with other PLA/plant fiber composites, and the results indicated that the PLA/OWF composites show better performance than PLA/wheat straw fiber composites and PLA/bamboo fiber composites. On this basis, influence of modification of OWF on the properties of composites was investigated. The infrared results show that the OWF modification by different coupling agents was successful, and the scanning electron microscopy indicates that prepared composites exhibit good interfacial compatibility due to preferable binding force between fiber and matrix. With addition of 2 wt% γ‐(2,3‐propylene oxides)propyl trimethylsilane, the composite exhibits high tensile strength of 58.96 MPa, reflecting increase of 14% than the pure PLA. According to the crystallization and melting performance table, OWF can act as nucleating agent to promote the crystallization properties on composites, while the coupling agents have little effect on thermal stability. This article confirmed that the OWF has appropriate properties and is suitable for preparing composite materials and this work provides a novel idea for the utilization of office waste paper.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Zhang

et al. 2020

J of Applied Polymer Sci

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“…However, the values of both tensile strength and elongation at break were greatly reduced at 40 wt% of nano talc. It was considered that nano talc was highly agglomerated and restricted the movement of polymer chain in the composites and the macro phase separation between the filler and the matrix [44,45]. The results suggested that the maximum of the nano talc content in the PLA/PBAT composite should be less than 30 wt% for optimizing material properties.…”

Section: Mechanical Properties Of Injection Molded Partsmentioning

confidence: 99%

“…From the result, the impact strength of the blends and the composites increased with increasing the contents of PBAT and nano talc. It was due to the ductility of PBAT and the reduction of PBAT dispersed phases in the blends and the composite [33,45]. Therefore, 3.2.…”

Section: Mechanical Properties Of Injection Molded Partsmentioning

confidence: 99%

“…The results implied that the nano talc improved the PLA crystallization in the 70/30-nano talc composites, which confirmed by higher degree of crystallinity of PLA in the composites than in the blends. It was considered that the nano talc acted as the heterogeneous nucleation site while PBAT dispersed phase retarded for PLA to crystallize [44][45][46][47][48][49]. Double peaks of the melting endotherm in the composites after printing as presented in Figure 10(d) indicated partial melting, recrystallization, and remelting of crystal in the composites [38,45,49].…”

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Properties of 3D Printable Poly(lactic acid)/Poly(butylene adipate-co-terephthalate) Blends and Nano Talc Composites

Prasong

Muanchan

Ishigami

et al. 2020

Journal of Nanomaterials

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Biodegradable poly(lactic acid) (PLA) filaments have been widely used in the fused deposition modeling (FDM) 3D printing technology. However, PLA has low toughness and low thermal resistance that affects printability and restricts its industrial applications. In this study, PLA was compounded with 0 to 40 wt% of poly(butylene adipate-co-terephthalate) (PBAT) and varied content of nano talc at 0 to 40 wt% in a twin screw extruder. The compounds were reextruded to filaments using a capillary rheometer. PLA/PBAT blends and their composite filaments were printed with a FDM 3D printing machine. Morphology, rheological behaviour, thermal characteristic, surface roughness, and mechanical property of 3D printing of the blends and the composites were investigated. Complex viscosity of the blends and the composites increased with increase of the PBAT and the nano talc contents. The incorporation of the nano talc enhanced crystallization temperature and reduced the coefficient of volume expansion of the composites. It was found that the PLA/PBAT blends and composites were excellent in both printability and dimension stability at PBAT content 10-30 wt% and nano talc up to 10 wt%. Interestingly, it was possible to print the composite filaments at an angle up to 75° during the overhang test without a supporter. From the vertical specimens, the surface roughness improved due to the incorporation of the nano talc. Tensile strength of the blends and the composites decreased, whereas elongation at break increased when the PBAT and the nano talc contents were increased. The reduction of tensile strength was attributed to agglomeration of the PBAT dispersed phase and less adhesion between the nano talc and the matrix. It can be noted that the composite 3D printing product showed superior elongation at break up to 410% by adding nano talc 1 wt%. This result suggests that the ductile 3D printable PLA/PBAT blend and the PLA/PBAT-nano talc composite products can be prepared, which shows potential for the commercialized scale.

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Field performance on lettuce crops of poly(butylene adipate‐co‐terephthalate)/polylactic acid as alternative biodegradable composites mulching films

Souza

Ferreira

Harada

et al. 2020

J of Applied Polymer Sci

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This work developed biodegradable poly(butylene adipate-co-terephthalate)/ polylactic acid (PBAT/PLA) composites with different fillers to improve their physicochemical properties and biodegradability. The films were tested considering mechanical, morphological, thermal, crystalline, biodegradability, and ecotoxicity tests. Mechanical and morphological results indicated that the fillers' nature influences mechanical performance; all composites showed high-tensile strength (~30 MPa) than the pristine films (~12 MPa). The use of both fillers resulted in an interface, improving the matrix compatibility, reflecting in good thermal performance, low-water absorption, and high hydrophobicity. The WA (water absorption) and hydrophobicity are essential to maintain the crop's moisture since the water lost through plant transpiration will be condensed and returned to the soil. Films showed biodegradability and absence of toxicity, which allows the substitution of polyethylene commodity films as mulching films. Biodegradation and ecotoxicity tests indicate that the developed films are beneficial for lettuce crops and contribute to the development of seedlings.

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Study on Mechanical and Thermal Properties of Poly(Lactic acid)/Poly(Butylene adipate-co-terephthalate)/Office Wastepaper Fiber Biodegradable Composites

Cited by 27 publications

References 30 publications

Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Study on the mechanical and thermal properties of poly(lactic acid)/office waste paper fiber composites

Properties of 3D Printable Poly(lactic acid)/Poly(butylene adipate-co-terephthalate) Blends and Nano Talc Composites

Field performance on lettuce crops of poly(butylene adipate‐co‐terephthalate)/polylactic acid as alternative biodegradable composites mulching films

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