Recent Developments in Lignin- and Tannin-Based Non-Isocyanate Polyurethane Resins for Wood Adhesives—A Review
Manggar Arum Aristri,Muhammad Adly Rahandi Lubis,Sumit Manohar Yadav,Petar Antov,Antonios N. Papadopoulos,Antonio Pizzi,Widya Fatriasari,Maya Ismayati,Apri Heri Iswanto +8 more
TLDR
In this paper, the potential of using renewable natural resources, such as lignin and tannin, in the preparation of NIPUs for wood adhesives was summarized.Abstract:
This review article aims to summarize the potential of using renewable natural resources, such as lignin and tannin, in the preparation of NIPUs for wood adhesives. Polyurethanes (PUs) are extremely versatile polymeric materials, which have been widely used in numerous applications, e.g., packaging, footwear, construction, the automotive industry, the lighting industry, insulation panels, bedding, furniture, metallurgy, sealants, coatings, foams, and wood adhesives. The isocyanate-based PUs exhibit strong adhesion properties, excellent flexibility, and durability, but they lack renewability. Therefore, this study focused on the development of non-isocyanate polyurethane lignin and tannin resins for wood adhesives. PUs are commercially synthesized using polyols and polyisocyanates. Isocyanates are toxic, costly, and not renewable; thus, a search of suitable alternatives in the synthesis of polyurethane resins is needed. The reaction with diamine compounds could result in NIPUs based on lignin and tannin. The research on bio-based components for PU synthesis confirmed that they have good characteristics as an alternative for the petroleum-based adhesives. The advantages of improved strength, low curing temperatures, shorter pressing times, and isocyanate-free properties were demonstrated by lignin- and tannin-based NIPUs. The elimination of isocyanate, associated with environmental and human health hazards, NIPU synthesis, and its properties and applications, including wood adhesives, are reported comprehensively in this paper. The future perspectives of NIPUs’ production and application were also outlined.read more
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Properties of High-Density Fiberboard Bonded with Urea-Formaldehyde Resin and Ammonium Lignosulfonate as a Bio-Based Additive.
Petar Antov,Viktor Savov,Neno Trichkov,Ľuboš Krišťák,Roman Réh,Antonios N. Papadopoulos,Hamid Reza Taghiyari,Antonio Pizzi,Daniela Kunecová,Marina Pachikova +9 more
TL;DR: The potential of ammonium lignosulfonate (ALS) as an eco-friendly additive to urea-formaldehyde (UF) resin for manufacturing high-density fiberboard (HDF) panels with acceptable properties and low free formaldehyde emission was investigated in this paper.
Journal ArticleDOI
Surface modification of microencapsulated phase change materials with nanostructures for enhancement of their thermal conductivity
Fatemeh Matin Moradkhan,Pin Jin Ong,Zhuang Mao Png,Fatemeh Matin Moradkhan,Xiang Yun Debbie Soo,Xizu Wang,Ady Suwardi,Ming Hui Chua,Qiang Zhu,Jianwei Xu,Jianwei Xu +10 more
TL;DR: In this paper, the authors used polyurethane acrylic lacquer and hardener (PALH) as an adhesive to allow the additives to be uniformly coated on the surface of the shell of MEPCMs.
Journal ArticleDOI
Surface modification of microencapsulated phase change materials with nanostructures for enhancement of their thermal conductivity
TL;DR: In this paper , the authors used polyurethane acrylic lacquer and hardener (PALH) as an adhesive to allow the additives to be uniformly coated on the surface of the shell of MEPCMs.
Journal ArticleDOI
Bio-Based Polyurethane Resins Derived from Tannin: Source, Synthesis, Characterisation, and Application
Manggar Arum Aristri,Muhammad Adly Rahandi Lubis,Apri Heri Iswanto,Widya Fatriasari,Rita Kartika Sari,Petar Antov,Milada Gajtanska,Antonios N. Papadopoulos,Antonio Pizzi +8 more
TL;DR: Tannins are soluble, astringent secondary phenolic metabolites generally obtained from renewable natural resources and can be found in many plant parts, such as fruits, stems, leaves, seeds, roots, buds, and tree barks, where they have a protective function against bacterial, fungal, and insect attacks as mentioned in this paper.
Journal ArticleDOI
Tannin as a renewable raw material for adhesive applications: a review
Pritam V. Dhawale,S. Vineeth,Ravindra V. Gadhave,Jabeen Fatima M. J.,Mrudul V. Supekar,Vijay Kumar Thakur,Prasanth Raghavan +6 more
TL;DR: Greener methods for the extraction and isolation of tannin, and it's state-of-the-art in adhesive technology, are discussed in this paper , where the authors present a method for extracting and isolating tannins.
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