Results 1 to 10 of about 120,520 (249)

Preparation and Properties Evaluation of Casein-based Film Incorporated with Chinese Bayberry Tannin

open access: yesShipin gongye ke-ji, 2023
In this work, a commercial Chinese bayberry tannin (BT) was used to improve the properties of the casein-based film via the solvent casting method. The impacts of tannin loading content on solubility, opacity, tensile strength, morphology, water vapor ...
Shuangqi DENG   +5 more
doaj   +1 more source

Bio-hyperbranched polyesters synthesized from citric acid and bio-polyols and applications on wood adhesives

open access: yesPolymer Testing, 2023
Biomass-based adhesives have attracted extensive research interest in recent years as an effective alternative to formaldehyde-based adhesives which are non-renewable and harmful to human health.
Tao Jin   +8 more
doaj   +1 more source

A Chitosan-Based Fluorescent Probe Combined with Smartphone Technology for the Detection of Hypochlorite in Pure Water

open access: yesMolecules, 2023
Using chitosan as a raw material, 1,8-naphthimide as the fluorescent chromophore, and sulfur-containing compounds as the recognition groups, a novel naphthimide-functionalized chitosan probe, CS-BNS, for the detection of ClO− was successfully synthesized.
Xushuo Yuan   +8 more
doaj   +1 more source

Novel hyperbranched resin for wood adhesive: Based on air oxidation and crosslinking copolymerization strategy

open access: yesPolymer Testing, 2023
At present, environmentally friendly high-performance wood adhesives have received widespread attention. Glucose and tris(2-aminoethyl)amine (TAEA) were used as raw materials in this study.
Senlei Shi   +9 more
doaj   +1 more source

Preparation a novel high performance glucose-based wood adhesive with hyperbranched cross-linked network by air oxidation

open access: yesPolymer Testing, 2023
Utilizing biomass resources to develop environmentally friendly and sustainable adhesives, replacing traditional petroleum-based adhesives, has become an effective way to solve resource shortages and environmental pollution.
Heyang Zeng   +9 more
doaj   +1 more source

Preparation of Nanocellulose-Based Aerogel and Its Research Progress in Wastewater Treatment

open access: yesMolecules, 2023
Nowadays, the fast expansion of the economy and industry results in a considerable volume of wastewater being released, severely affecting water quality and the environment.
Jiaxin Zhao   +7 more
doaj   +1 more source

Functionalized Natural Tannins For Preparation of a novel non-isocyanate polyurea-based adhesive

open access: yesPolymer Testing, 2023
In recent years, the shortcomings of products bonded with adhesives of conventional resins (e.g. urea-formaldehyde, phenol-formaldehyde, melamine-based) have raised concerns as people have become more environmentally conscious while fossil resources are ...
Haizhu Wu   +7 more
doaj   +1 more source

Technological properties of a branched polyethyleneimine derivative as a cross-linker for low molar ratio urea-formaldehyde resins

open access: yesPolymer Testing, 2023
To address formaldehyde release problem, low-molar-ratio UF resin has become the industry's major adhesive for bonding wood-based panels. Unfortunately, its drawbacks of poor water resistance, low bonding strength and slow curing rate lead to low ...
Hui Wang   +4 more
doaj   +1 more source

Study of the long-term degradation behavior of bamboo scrimber under natural weathering

open access: yesnpj Materials Degradation, 2022
In this work, the degradation behavior of bamboo scrimber are investigated under natural weathering system for six years. Fourier transform infrared spectroscopy (FTIR), x-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and ...
Ya-Hui Zhang   +6 more
doaj   +1 more source

The effect of oxidated glucose on the performance and structures of polyamide resins synthesized by citric acid and hexanediamine

open access: yesPolymer Testing, 2022
A thermoset polyamide resins were synthesized by citric acid and hexanediamine (CH), and was modified by oxidized glucose (OG). The effect of oxidation time and addition amount of oxidized glucose on shearing strength of plywood were characterized ...
Gaoxiang Xu   +5 more
doaj   +1 more source

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