Properties and characteristics of novel formaldehyde-free wood adhesives prepared from Irvingia gabonensis and Irvingia wombolu seed kernel extracts

Alawode, Abiodun Oluseun; Bungu, Paul Severin Eselem; Amiandamhen, Stephen; Meincken, Martina; Tyhoda, Luvuyo

doi:10.1016/j.ijadhadh.2019.102423

Cited by 18 publications

(10 citation statements)

References 19 publications

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“…Therefore, careful selection of materials can improve air quality, healthy, and comfortable indoor environments [64]. In this regard, previous research has been done for different parts of non-structural building materials including floor [65,66], wallpaper [67,68], insulation [69,70], adhesive [71], paint [72], and wood-based panels [73]. However, the current research focused on a specific biocomposite as GBM especially fabricated from non-toxic, natural, and organic materials that could reduce IAQ contaminants and the accompanying complaints and claims.…”

Section: Biocomposite As Gbms To Decline Voc Emissionsmentioning

confidence: 99%

The Role of Green Building Materials in Reducing Environmental and Human Health Impacts

Khoshnava

Rostami

Zin

et al. 2020

IJERPH

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Conventional building materials (CBMs) made from non-renewable resources are the main source of indoor air contaminants, whose impact can extend from indoors to outdoors. Given their sustainable development (SD) prospect, green building materials (GBMs) with non-toxic, natural, and organic compounds have the potential to reduce their overall impacts on environmental and human health. In this regard, biocomposites as GBMs are environmentally friendly, safe, and recyclable materials and their replacement of CBMs reduces environmental impacts and human health concerns. This study aims to develop a model of fully hybrid bio-based biocomposite as non-structural GBMs and compare it with fully petroleum-based composite in terms of volatile organic compound (VOC) emissions and human health impacts. Using a small chamber test (American Society for Testing and Materials (ASTM)-D5116) for VOC investigation and SimaPro software modeling with the ReCiPe method for evaluating human health impacts. Life cycle assessment (LCA) methodology is used, and the results indicate that switching the fully hybrid bio-based biocomposite with the fully petroleum-based composite could reduce more than 50% impacts on human health in terms of indoor and outdoor. Our results indicate that the usage of biocomposite as GBMs can be an environmentally friendly solution for reducing the total indoor and outdoor impacts on human health.

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Section: Biocomposite As Gbms To Decline Voc Emissionsmentioning

confidence: 99%

The Role of Green Building Materials in Reducing Environmental and Human Health Impacts

Khoshnava

Rostami

Zin

et al. 2020

IJERPH

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“…This was carried out to observe the structural changes in the adhesives after modification process. The spectra were recorded using a decoupled sequence at 13 C frequency of 100.6338 MHz at 25 °C. Samples were measured at a spinning rate of 10,000 Hz averaging 4096 scans with a recycling delay of 10 s. A time domain of 2 K was employed with a spectral width of 30 kHz.…”

Section: Nuclear Magnetic Resonance (Nmr) Spectroscopymentioning

confidence: 99%

“…The chemical structure analysis of the samples was first performed using solid-state 13 C NMR as depicted in Fig. 1.…”

Section: Solid State 13 C Nmr Analysismentioning

confidence: 99%

“…The authors concluded that the gum has good potential to be used in producing normal tramadol capsules. Recently, Alawode et al [13] reported that adhesives extracted from kernels of IG and IW have the potential to be used as wood adhesives. However, the adhesive properties could be improved by cross linking with other substrates [13].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Alawode et al [13] reported that adhesives extracted from kernels of IG and IW have the potential to be used as wood adhesives. However, the adhesive properties could be improved by cross linking with other substrates [13]. Currently, there is no information on the properties and characterization of modified Irvingia adhesive using different modifiers.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Irvingia kernels extract as biobased wood adhesive

et al. 2020

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Irvingia tree species have been earmarked for domestication in many countries due to their potential as raw materials for various applications, which include biodiesel, cosmetics, perfume, soap, etc. Presently, there is no information on the utilization of kernel seed extract as a potential source of green wood adhesive. This study is focused on investigating the properties of adhesives produced from kernel seeds of two Irvingia wood species i.e. Irvingia gabonensis (IG) and Irvingia wombolu (IW), as well as investigating the improved properties derived from the effect of modification using a few selected modifying agents including glutaraldehyde, glyoxal, epichlorohydrin (EPI) and an acid/base type process modification. Polyethylene (PE) was used along with the glutaraldehyde, glyoxal and epichlorohydrin modifiers in the modification process. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) were conducted to study the effect of modification on adhesive properties. The glycosidic carbon of the unmodified extracts and that of the EPI modified sample were not sensitive to chain conformations. Principal components (PC) 1 and 2 explained 85.19 and 9.54%, respectively, of the total variability in FTIR spectra among the modified and unmodified adhesives. The unmodified samples for IG and IW exhibited one peak with crystallization temperatures of 18.7 and 14.4 °C, respectively, indicating only one component exhibits some low degree crystallinity. The adhesive properties of the modified extracts were tested on wood veneers according to ASTM standard. The shear strength of the modified adhesives ranged from 1.5 to 3.93 MPa and 1.7 to 4.05 MPa for IG and IW, respectively. The modified samples containing PE showed marked improvement in the shear strength. The highest values were about 63% higher than the shear strength of unmodified samples with least shear strength. The results indicated that the modification of Irvingia-based adhesives had a great contribution to their performance as natural wood adhesives.

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Graphene oxide a promising formaldehyde scavenger of phenolic resin‐bonded plywood: From elaboration to evaluation

Ait Benhamou,

Salim,

Boussetta

et al. 2023

J of Applied Polymer Sci

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A long‐standing manufactured and most frequently used resin is phenol‐formaldehyde resin, which has currently reached new horizons by incorporating nano reinforcements, even at lower loadings. Nanostructured materials, particularly graphene, have gained considerable interest in recent years because of their fascinating characteristics. Herein, this study explores for the first time the potential of prepared graphene oxide (GnO) as an effective formaldehyde scavenger in the development of plywood panels containing PF resins. The addition of 1% of GnO to the system resulted in a significant improvements in the mechanical properties by more than 45% in the shear strength (SS), 35% in modulus of elasticity, and 25% in modulus of rupture when compared with the reference panel. While the moisture resistance of panels were found to remarkably enhanced showing an increase in SS by 25% and 37% After 24 h in cold water (20°C) and 12 h of immersion in boiling water, respectively. The results also demonstrated that GnO exhibited exceptional formaldehyde capture efficiency, surpassing 60% reduction compared with the control. This innovative research not only unveils the novel potential of GnO in improving the performance of PF resins but also ushers in a new way of developing eco‐friendly wood‐based materials.

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Properties and characteristics of novel formaldehyde-free wood adhesives prepared from Irvingia gabonensis and Irvingia wombolu seed kernel extracts

Cited by 18 publications

References 19 publications

The Role of Green Building Materials in Reducing Environmental and Human Health Impacts

The Role of Green Building Materials in Reducing Environmental and Human Health Impacts

Evaluation of Irvingia kernels extract as biobased wood adhesive

Graphene oxide a promising formaldehyde scavenger of phenolic resin‐bonded plywood: From elaboration to evaluation

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