Adhesive properties of water-washed cottonseed meal on four types of wood

He, Zhongqi; Chapital, Dorselyn C.; Cheng, H. N.; Modesto, Olanya O.

doi:10.1080/01694243.2016.1175245

Cited by 14 publications

(7 citation statements)

References 27 publications

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“…Table 3 . The decreasing trend of adhesive strength by water soaking was observed before, however, the extent of the decrease observed in this study was greater than the water decrease reported in the literature (He et al, 2016c(He et al, , 2016d. The previous studies have shown that water soaking-re-drying cycles decreased much less, in some case even increased a little bit, the adhesive strength of WCSM or cottonseed protein adhesives He et al, 2016c).…”

Section: Adhesive Performance Of Wcsmcontrasting

confidence: 54%

“…Similarly, He & Cheng (2017a) found that the impact of varying solid content between 11% and 30% of WCSM on its adhesive strength was not obvious with press temperature at 100 o C. Our observation in this work was consistent with the early observations. On the other hand, the dry adhesive strength of WCSM observed in this work was much higher than the literature data (around 3.3 to 5.6 MPa) (He et al, 2016d). The higher adhesive strength observed in this work was apparently due to the thicker wood specimens and different bonding/testing conditions.…”

Section: Adhesive Performance Of Wcsmcontrasting

confidence: 54%

“…In recent years, He and his colleagues have demonstrated that water-washed cottonseed meal (WCSM) could serve as promising wood adhesives (He et al, 2014a(He et al, , 2014b(He et al, , 2014c. Indeed, WCSM showed the adhesive performance comparable to cottonseed protein isolate (He et al, 2016c(He et al, , 2016d. Recently, the product WCSM was produced in a pilot scale, yielded adequate amounts for practical application evaluation per industrial standards (He & Cheng, 2017b;He et al, 2016e).…”

Section: Introductionmentioning

confidence: 99%

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Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

He¹,

Chiozza²

2017

JMSR

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Water-washed cottonseed meal (WCSM) has been shown the potential to be used as renewable and environmentfriendly adhesives in wood products industry. Recently, WCSM was produced from defatted meal in a pilot scale. In this study, we initially compare the adhesive strength of the pilot-produced WCSM with that of a synthetic glue Vinavil 2259 L. WCSM may be used as the conventional D1 wood adhesives for nonstructural interior application per European standard EN204/205. Non-structural D3 type adhesives is more widely used in protected outside. Under the testing conditions, WCSM possessed very high heat resistance according to European standard EN14257 (WATT 91)-adhesive strength after 1 hour at 80°C. However, the dry strength (EN204/205) and water resistance (specimen were put in water for 4 days and then pulled in the dynamometer) of WCSM were lower than those of the synthetic glue Vinavil 2259 L. Blending WCSM with Vinavil 2259 L improved the water resistance of WCSM, allowing the classification of the WCSM adhesive as D3. Further work will be focused on the increase of solid content of the final adhesive slurries and the improvement of their water resistance.

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Section: Adhesive Performance Of Wcsmcontrasting

confidence: 54%

Section: Adhesive Performance Of Wcsmcontrasting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

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Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

He¹,

Chiozza²

2017

JMSR

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“…Wood extractives can also change the wettability and the curing properties of wood adhesives, thus affecting the gluing bond strength and performance . Maple and oak are two wood substrates frequently used in wood adhesive studies . Increased knowledge on the water extractives from the two types of wood would be helpful in better understanding, and thus improving the strategies, of wood‐adhesive bonding.…”

Section: Introductionmentioning

confidence: 99%

Molecular level comparison of water extractives of maple and oak with negative and positive ion ESI FT‐ICR mass spectrometry

Sleighter

Hatcher

et al. 2019

J Mass Spectrom

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Soluble extractives in wood function to protect living trees from destructive agents and also contribute to wood color and fragrance. Some extractive components have biological activities with medical applications. They also play important roles in wood processing and related applications. To increase the knowledge of wood chemistry, maple and oak were extracted by water. Ultraviolet/visible (UV/vis) spectroscopy indicated the presence of a phenolic compound, resorcinol, in maple extractives having higher molecular mass and more aromatic components than oak extractives. Negative and positive electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR-MS) identified thousands of formulas in the two samples in the m/z range of 200 to 800. They mainly fall into the lignin-like, carbohydrate-like, and tannin-like compound categories. The top 25 peaks (ie, formulas) with the highest relative magnitude in negative ESI represented nearly 50% of the summed total spectral magnitude of all formulas assigned in the maple and oak extractives. Furthermore, the base peak (ie, most abundant peak) accounted for about 14% of the total abundance in each wood sample. Literature comparisons identified 17 of 20 formulas in the top five peaks of the four spectra as specific bioactive compounds in trees and other plants, implying the potential to explore utilization of maple and oak extractives for functional and medicinal applications. The various profiling of the top 25 peaks from the two samples also suggested the possible application of FT-ICR-MS for detecting chemical markers useful in profiling and identification of wood types and sources. KEYWORDS Fourier transform ion cyclotron resonance mass spectrometry, maple, oak, van Krevelen diagrams

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“…Water-or buffer-washed cottonseed meals have also been shown to be cheaper adhesive alternatives to cottonseed protein isolate [24][25][26][27][28]. A variety of modifiers, such as sodium dodecyl sulfonate, urea, and guanidine hydrochloride, have been reported to improve the adhesive properties of soy [10,11,22,29,30] and cottonseed proteins [22].…”

Section: Introductionmentioning

confidence: 99%

Effects of phosphorus-containing additives on soy and cottonseed protein as wood adhesives

Cheng

Ford

Dowd

et al. 2017

International Journal of Adhesion and Adhesives

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Soy and cottonseed proteins appear promising as sustainable and environment-friendly wood adhesives. Because of their higher cost relative to formaldehyde-based adhesives, improvement in the adhesive performance of proteins is needed. In this work, we evaluated the adhesive properties of soy and cottonseed protein formulations that included phosphorus-containing acids and esters. For cottonseed protein isolate, most of these additives improved dry adhesive strength, with methylphosphonic acid, phosphorous acid, and phosphoric acid increasing the dry strength by 47, 44, and 42%, respectively, at their optimal concentrations. For soy protein isolate, these additives did not show significant benefits. The phosphorus-containing additives also improved the hot water resistance of the cottonseed protein formulations but showed either no effect or a negative effect for the of soy protein formulations. Thus, the combination of cottonseed protein with phosphorus additives appears to be attractive as wood adhesives.

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Adhesive properties of water-washed cottonseed meal on four types of wood

Abstract: a usda-ars, southern regional research center, usda agricultural research service, new orleans, la, usa; b usda-ars, eastern regional research center, Wyndmoor, Pa, usa

Cited by 14 publications

References 27 publications

Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

Molecular level comparison of water extractives of maple and oak with negative and positive ion ESI FT‐ICR mass spectrometry

Effects of phosphorus-containing additives on soy and cottonseed protein as wood adhesives

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