Green Antibacterial Nanocomposites from Poly(lactide)/Poly(butylene adipate-<i>co</i>-terephthalate)/Nanocrystal Cellulose–Silver Nanohybrids

Ma, Piming; Jiang, Long; Yu, Manman; Dong, Weifu; Chen, Mingqing

doi:10.1021/acssuschemeng.6b01106

Cited by 85 publications

(46 citation statements)

References 65 publications

(110 reference statements)

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“…. TGA is regarded as a useful method to determine quantitatively the weight percentage of SiO 2 in hybrid . The weight residual of the CNC is around 29.7 wt% at 600°C which was associated with the introduction of sulfate groups and glucose during the preparation of the CNC .…”

Section: Resultsmentioning

confidence: 99%

In situ fabrication of cellulose nanocrystal‐silica hybrids and its application in UHMWPE: Rheological, thermal, and wear resistance properties

Huang

et al. 2017

Polymer Composites

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Novel cellulose nanocrystal (CNC)‐silica (SiO2) nanohybrids with a better thermal stability were successfully fabricated by sol–gel method. In this unique hybrid architecture, it was found that silica particles were uniformly adsorbed/anchored by the CNC via covalent bonding and hydrogen bonding. Subsequently, the nanocomposites containing nanofillers (CNC‐SiO2 nanohybrids or CNC), ultrahigh molecular weight polyethylene (UHMWPE), polyethylene glycol (PEG), were prepared by the twin screw extrusion and their properties and structure were systematically investigated. With the incorporation of CNC‐SiO2 nanohybrids (or CNC) into the UHMWPE matrix, the tensile strength, flexural strength, flexural modulus, vicat softening temperature, and crystallinity of the ensuing nanocomposites were significantly increased. Meanwhile, the nanofiller could enhance the wear resistance of UHMWPE. Notably, compared to CNC, the unique beaded structure of CNC‐SiO2 nanohybrids could endow the UHMWPE with an overall superior performance. POLYM. COMPOS., 39:E1701–E1713, 2018. © 2017 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

In situ fabrication of cellulose nanocrystal‐silica hybrids and its application in UHMWPE: Rheological, thermal, and wear resistance properties

Huang

et al. 2017

Polymer Composites

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“…Poly(lactic acid) (PLA) has been applied extensively in biomedical, green packaging, textile, and three‐dimensional (3D) printing materials because of its excellent processability, high transparency, superior biocompatibility, and biodegradability. However, when PLA is used for 3D printing, its intrinsic brittleness may lead to the rupture of the PLA filaments.…”

Section: Introductionmentioning

confidence: 99%

Poly(lactic acid)–thermoplastic poly(ether)urethane composites synergistically reinforced and toughened with short carbon fibers for three‐dimensional printing

Qian

Chen

et al. 2018

J of Applied Polymer Sci

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In this study, we prepared short-carbon-fiber (CF)-reinforced poly(lactic acid) (PLA)-thermoplastic polyurethane (TPU) blends by melt blending. The effects of the initial fiber length and content on the morphologies and thermal, rheological, and mechanical properties of the composites were systematically investigated. We found that the mechanical properties of the composites were almost unaffected by the fiber initial length. However, with increasing fiber content, the stiffness and toughness values of the blends were both enhanced because of the formation of a TPU-mediated CF network. With the incorporation of 20 wt % CFs into the PLA-TPU blends, the tensile strength was increased by 70.7%, the flexural modulus was increased by 184%, and the impact strength was increased by 50.4%. Compared with that of the neat PLA, the impact strength of the CF-reinforced composites increased up to 1.92 times. For the performance in three-dimensional printing, excellent mechanical properties and a good-quality appearance were simultaneously obtained when we printed the composites with a thin layer thickness. Our results provide insight into the relationship among the CFs, phase structure, and performance, as we achieved a good stiffness-toughness balance in the PLA-TPU-CF ternary composites.

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“…In addition, NCC can also be used as a reinforcing agent, which has been mentioned in many studies to improve the mechanical properties of nanocomposites. Mixed AgNPs and NCC have been used in many ways, even including wound dressing adsorbents in medicine [17]. Liu et al[18] prepared a kind of material with carboxylated cellulose nanoparticles and AgNPs nanocomposites as dual functional nanofillers to improve the mechanical properties of nanocomposites and the antibacterial properties of WPU.…”

mentioning

confidence: 99%

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confidence: 99%

Application of Eco-Friendly Waterborne Polyurethane Composite Coating Incorporated with Nano Cellulose Crystalline and Silver Nano Particles on Wood Antibacterial Board

2020

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To endow wood plate with antimicrobial properties, waterborne polyurethane (WPU) coatings incorporated with nano cellulose crystalline (NCC) and silver nanoparticles (AgNPs) were prepared. AgNPs were obtained by the chemical reactions of silver nitrate solution and sodium borohydride solution. The scribe testing results showed that the adhesion of the NCC-WPU composites was improved with the addition of NCC. The adhesion reached its peak when the amount of NCC added was 1%. Scanning electron microscopy (SEM) observation displayed that the NCC dispersed into the WPU without aggregation. NCC was well able to bind WPU and wood cell walls tightly together. Atomic force microscopy (AFM) and ultraviolet-visible (UV-vis) results revealed that WPU/NCC/AgNPs composites were homogeneous. This compatibility was also confirmed by transmission electron microscopy (TEM) analysis. The antibacterial property was improved too. When the adding amount of NCC was 0.5%, and the proportion of silver elements added was 5%, the antibacterial effect was at its best. As a comparison, the antibacterial effect of hybrid colloid without the addition of NCC was far less than that of including NCC. The WPU/NCC/AgNPs composite could be applied as an antibacterial coating in wood materials.Polymers 2020, 12, 407 2 of 11The board with surface antibacterial function not only retains all of the characteristics of traditional wood board, but also has the function of inhibiting and killing most harmful bacteria and inhibiting their growth and reproduction. In the future, antibacterial board will have a huge potential demand and broad development prospects [9].Applying antibacterial coating on the surface of the material is the simplest and most efficient way to make them have antibacterial properties. Among wood coatings, waterborne polyurethane (WPU) is a kind of widely used one because of its environmental protection characteristics and easy construction, but the antimicrobial properties are very poor [10][11][12].In order to improve the antimicrobial properties, many inorganic nanoparticles were introduced. Nano metal particles are a kind of important inorganic fillers, which have been successfully applied to the functionalization of polymer materials, bringing new functions to polymer materials [13][14][15]. However, the formation of aggregates will greatly reduce the applicability of inorganic nanoparticles. It is a great challenge to avoid agglomeration in the binding process of inorganic nanoparticles and host polymers.Silver nanoparticles (AgNPs) are a widely recognized antimicrobial material because of their nontoxicity. The silver nanoparticle has numerous applications in many places such as food and other industrial products. Although there are many ways to prepare AgNPs, most of them are easier to form aggregates, which will greatly reduce the number of non-aggregates and the applicability of nanoparticles [16]. In order to minimize the aggregation of nanoparticles, the addition of a reducing agent in the presence of nanocellulose is the ...

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Green Antibacterial Nanocomposites from Poly(lactide)/Poly(butylene adipate-co-terephthalate)/Nanocrystal Cellulose–Silver Nanohybrids

Cited by 85 publications

References 65 publications

In situ fabrication of cellulose nanocrystal‐silica hybrids and its application in UHMWPE: Rheological, thermal, and wear resistance properties

In situ fabrication of cellulose nanocrystal‐silica hybrids and its application in UHMWPE: Rheological, thermal, and wear resistance properties

Poly(lactic acid)–thermoplastic poly(ether)urethane composites synergistically reinforced and toughened with short carbon fibers for three‐dimensional printing

Application of Eco-Friendly Waterborne Polyurethane Composite Coating Incorporated with Nano Cellulose Crystalline and Silver Nano Particles on Wood Antibacterial Board

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