Ag immobilized lignin-based PU coating: A promising candidate to promote the mechanical properties, thermal stability, and antibacterial property of paper packaging

Xie, Huihui; Zhang, Hui; Liu, Xinxin; Tian, Shenglong; Liu, Yunsi; Fu, Shiyu

doi:10.1016/j.ijbiomac.2021.08.184

Cited by 12 publications

(5 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…242−244 To enhance the mechanical strength and glass transition temperature of polyurethane, acid lignin is utilized for functionalization within the network, with the expectation that it will serve as hard segments. 245,246 Previously, an excessive quantity of lignin caused material to become rigid and fragile. However, lignin can now be utilized to create a threedimensional cross-linking structure that improves the material's tensile strength and durability.…”

Section: Poly Butylene Adipate-co-terephthalate (Pbat)mentioning

confidence: 99%

“…Diisocyanates (polyisocyanates) and polyols containing terminal hydroxyl groups perform a polyaddition reaction that forms polyurethane, which is subsequently incorporated into the polymer’s framework. − According to their components and synthesis technique, these polymers have a wide range of applications and physical characteristics. Isocyanates group must react with the OH group to form a urethane bridge. − To enhance the mechanical strength and glass transition temperature of polyurethane, acid lignin is utilized for functionalization within the network, with the expectation that it will serve as hard segments. , Previously, an excessive quantity of lignin caused material to become rigid and fragile. However, lignin can now be utilized to create a three-dimensional cross-linking structure that improves the material’s tensile strength and durability. , Polyurethanes made from biomass sources are more easily broken down by natural processes compared to those made from polyols derived from petroleum .…”

Section: Application Of Lignin In Polymer Materials and Vanillinmentioning

confidence: 99%

See 1 more Smart Citation

Lignin Modification for Enhanced Performance of Polymer Composites

Taher,

Wang,

Faridul Hasan

et al. 2023

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

Section: Poly Butylene Adipate-co-terephthalate (Pbat)mentioning

confidence: 99%

Section: Application Of Lignin In Polymer Materials and Vanillinmentioning

confidence: 99%

Lignin Modification for Enhanced Performance of Polymer Composites

Taher,

Wang,

Faridul Hasan

et al. 2023

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

“…On the other hand, the nature of the solvent employed plays a more important role in the thermal behaviour of the obtained polyols (PolyI and PolyIII). Regarding the thermal decomposition of the BioPU coatings (Figure 5D-F, for BPUI, BPUII, and BPUIII, respectively), three main steps of degradation are observed [19,[79][80][81][82]. The weight lost in each step and the temperature of the corresponding DTG peak, as well as the final char residue, are presented in Table 7.…”

Section: Samples Thermal Degradation Stepsmentioning

confidence: 99%

Development of BioPolyurethane Coatings from Biomass-Derived Alkylphenol Polyols—A Green Alternative

et al. 2023

View full text Add to dashboard Cite

Bio-based polyols were obtained from the thermochemical liquefaction of two biomass feedstocks, pinewood and Stipa tenacissima, with conversion rates varying between 71.9 and 79.3 wt.%, and comprehensively characterized. They exhibit phenolic and aliphatic moieties displaying hydroxyl (OH) functional groups, as confirmed by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and nuclear magnetic resonance spectroscopy (NMR) analysis. The biopolyols obtained were successfully employed as a green raw material to produce bio-based polyurethane (BioPU) coatings on carbon steel substrates, using, as an isocyanate source, a commercial bio-based polyisocyanate—Desmodur® Eco N7300. The BioPU coatings were analyzed in terms of chemical structure, the extent of the reaction of the isocyanate species, thermal stability, hydrophobicity, and adhesion strength. They show moderate thermal stability at temperatures up to 100 °C, and a mild hydrophobicity, displaying contact angles between 68° and 86°. The adhesion tests reveal similar pull-off strength values (ca. 2.2 MPa) for the BioPU either prepared with pinewood and Stipa-derived biopolyols (BPUI and BPUII). Electrochemical impedance spectroscopy (EIS) measurements were carried out on the coated substrates for 60 days in 0.05 M NaCl solution. Good corrosion protection properties were achieved for the coatings, with particular emphasis on the coating prepared with the pinewood-derived polyol, which exhibited a low-frequency impedance modulus normalized for the coating thickness of 6.1 × 1010 Ω cm at the end of the 60 days test, three times higher than for coatings prepared with Stipa-derived biopolyols. The produced BioPU formulations show great potential for application as coatings, and for further modification with bio-based fillers and corrosion inhibitors.

show abstract

“…Nonetheless, other properties like antioxidation, gas impermeability and UV resistance have also been reported for lignin-PU-based coatings [ 250 ]. Thus, Xie et al [ 251 ] developed PUs by using different diisocyanates and Ag nanoparticles, which showed excellent thermal and mechanical properties with very high lignin content (more than 40%), while excellent antibacterial properties were provided by the metal addition. On the other hand, Fuqiang and Xiangjiao [ 252 ] developed UV-cured lignin PUs with improved hydrophobicity.…”

Section: Lignocellulose-based Polyurethanesmentioning

confidence: 99%

Lignocellulosic Materials for the Production of Biofuels, Biochemicals and Biomaterials and Applications of Lignocellulose-Based Polyurethanes: A Review

2022

View full text Add to dashboard Cite

The present review is devoted to the description of the state-of-the-art techniques and procedures concerning treatments and modifications of lignocellulosic materials in order to use them as precursors for biomaterials, biochemicals and biofuels, with particular focus on lignin and lignin-based products. Four different main pretreatment types are outlined, i.e., thermal, mechanical, chemical and biological, with special emphasis on the biological action of fungi and bacteria. Therefore, by selecting a determined type of fungi or bacteria, some of the fractions may remain unaltered, while others may be decomposed. In this sense, the possibilities to obtain different final products are massive, depending on the type of microorganism and the biomass selected. Biofuels, biochemicals and biomaterials derived from lignocellulose are extensively described, covering those obtained from the lignocellulose as a whole, but also from the main biopolymers that comprise its structure, i.e., cellulose, hemicellulose and lignin. In addition, special attention has been paid to the formulation of bio-polyurethanes from lignocellulosic materials, focusing more specifically on their applications in the lubricant, adhesive and cushioning material fields. High-performance alternatives to petroleum-derived products have been reported, such as adhesives that substantially exceed the adhesion performance of those commercially available in different surfaces, lubricating greases with tribological behaviour superior to those in lithium and calcium soap and elastomers with excellent static and dynamic performance.

show abstract

Ag immobilized lignin-based PU coating: A promising candidate to promote the mechanical properties, thermal stability, and antibacterial property of paper packaging

Cited by 12 publications

References 51 publications

Lignin Modification for Enhanced Performance of Polymer Composites

Lignin Modification for Enhanced Performance of Polymer Composites

Development of BioPolyurethane Coatings from Biomass-Derived Alkylphenol Polyols—A Green Alternative

Lignocellulosic Materials for the Production of Biofuels, Biochemicals and Biomaterials and Applications of Lignocellulose-Based Polyurethanes: A Review

Contact Info

Product

Resources

About