Thermoplastic and moisture‐dependent behavior of lignin phenol formaldehyde resins
نویسندگان
چکیده
منابع مشابه
Use of Lignin Separated from Bio-oil in Oriented Strand Board Binder Phenol-formaldehyde Resins
Bio-oil produced from fast pyrolysis of biomass has been investigated as a renewable fuel and as a source of industrial chemicals. The lignin fraction of bio-oil produced from wood in our fast pyrolysis reactor was separated by using only water and methanol with a 25% yield based on bio-oil weight. This separation procedure appears to be of lower cost than the reported extraction procedure usin...
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Understanding wetting behavior and surface coverage of resins on a wood surface is important to obtain satisfactory adhesion and optimize adhesive application for wood composite manufacturing. Sessile and micro-droplets of ureaand phenol-formaldehyde (UF and PF) resins were generated on wood surfaces to observe wetting behaviors using three directional image generation system and atomic force m...
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Wood liquefaction was conducted at a 2/1 phenol/wood ratio in two different reactors: (1) an atmospheric three-necked flask reactor and (2) a sealed Parr reactor. The liquefied wood mixture (liquefied wood, unreacted phenol, and wood residue) was further condensed with formaldehyde under acidic conditions to synthesize two novolac-type liquefied wood/phenol/formaldehyde (LWPF) resins: LWPF1 (th...
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The curing behavior of lignin-based phenol-formaldehyde (LPF) resin with different contents of nano-crystalline cellulose (NCC) was studied by differential scanning calorimetry (DSC) at different heating rates (5, 10 and 20 ̊C/min) and the bonding property was evaluated by the wet shear strength and wood failure of two-ply plywood panels after soaking in water (48 hours at room temperature and f...
متن کاملCuring Characteristics and Adhesion Performance of Phenol–formaldehyde Resins with Composite Additives
MO XF, FAN DB, QIN TF & CHU FX. 2015. Curing characteristics and adhesion performance of phenol–formaldehyde resins with composite additives. The curing characteristics of cure-accelerated phenol–formaldehyde resins with composite additives were investigated by differential scanning calorimetry analysis and gelation test. The pot lives and adhesion performances of phenol–formaldehyde resins wer...
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ژورنال
عنوان ژورنال: Journal of Applied Polymer Science
سال: 2019
ISSN: 0021-8995,1097-4628
DOI: 10.1002/app.48011