A preliminary investigation into the suitability of Kawui wood (<i>Vernonia arborea</i>) for pulp and paper

Indrayanti, Lies; Siska, Grace; Wardhani, Isna Yuniar

doi:10.1080/20426445.2020.1775758

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…It is allegedly caused by the chemical properties of Eleocharis sp. that has higher cellulose and lignin content (46% and 26.6%, respectively) [13] than V. arborea Buch.-Ham (40% and 24%, respectively) [10]. Consequently, the fabricated particleboard in this study is more hygroscopic.…”

Section: Thickness Swellingmentioning

confidence: 79%

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Evaluating the Physical and Mechanical Properties of Particleboards Fabricated from Vernonia Arborea Buch. -Ham and Eleocharis sp. Fibers with PVAc Adhesive

Indrayanti,

Siska,

Santosa

2024

ACSM

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This study aimed to evaluate the physical and mechanical properties of particleboards fabricated from Vernonia arborea Buch.-Ham and Eleocharis sp. fibers with PVAc adhesive based on the SNI 03-2105-2006. A two-factor factorial in completely randomized design was used with adhesive contents of 10% and 20% as the first, and ratios of V. arborea Buch.-Ham to Eleocharis sp. of 30/70, 50/50 and 70/30 as the second factor. The materials were V. arborea Buch.-Ham wood shaving (mesh size of 4), Eleocharis sp. (chop length of 1-2cm), and PVAc adhesive. The parameters were moisture content, density, water absorption, and thickness swelling for physical properties, and modulus of elasticity, modulus of rupture, internal bond strength, and screw holding strength for mechanical properties. However, both properties do not meet the SNI 03-2105-2006 (except for thickness swelling), allegedly caused by imprecise concentration and uneven distribution of PVAc. Additionally, 3h boiling of Eleocharis sp. is not able to remove its wax layer, causing less optimal adhesion between materials. Particleboard with 20% PVAc shows the best result. Principally, the adhesive concentration has significant effects, while the combination between V. arborea Buch.-Ham and Eleocharis sp. has insignificant effects on the physical and mechanical properties of particleboards. The evaluated composition is recommended for interior uses (partition walls, wall panels, information boards, and lightweight ceilings), with the addition of coating to improve durability and decorative value. As an additional material, Eleocharis sp. has a high sustainability value due to its availability in nature.

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Section: Thickness Swellingmentioning

confidence: 79%

“…as the additional material. V. arborea Buch.-Ham contains more than 68% holocellulose, 40% α-cellulose, 24% lignin, and 0.6% ash [10]. Its specific gravity ranges between 0.40 and 0.60 [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Physical and Mechanical Properties of Particleboards Fabricated from Vernonia Arborea Buch. -Ham and Eleocharis sp. Fibers with PVAc Adhesive

Indrayanti,

Siska,

Santosa

2024

ACSM

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Study of Chemical and Anatomical Properties of Jurinea consanguinea DC. (Compositae Giseke) In terms of Potential Applications: Insights into Root, Root Collar, and Stem Structure

Yıldızbaş,

Yaman,

İstek

et al. 2024

Kastamonu University Journal of Forestry Faculty

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Aim of study: This study aims to investigate the anatomical and fiber morphological characteristics of Jurinea consanguinea in the root, root collar, and stem, while also evaluating stem chemical composition. Area of study: The study area was in Coburlar Village, Zonguldak, Türkiye. Material and method: Chemical composition of the stem was determined according to standard TAPPI protocols. To analyze the morphological properties of fibers and vessel elements, plant parts were macerated according to the sodium chloride (NaClO2) method. Anatomical sections were taken with the GSL-1 microtome. The RStudio program was used for the statistical analysis. Main results: It was determined that the chemical composition of J. consanguinea stem was holocellulose at 67.17%, α-cellulose at 31.13%, lignin at 12.54%, and ethanol solubility at 18.2%. Root, root collar, and stem fiber lengths were found to be 305.7 µm, 278.31 µm, and 1322 µm, respectively. Secretory ducts were observed in the root and root collar's barks. Research highlights: In this study, the root, root collar, and stem anatomy of J. consanguinea, and the stem chemical composition were examined for the first time and introduced into the literature.

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A preliminary investigation into the suitability of Kawui wood (Vernonia arborea) for pulp and paper

Cited by 2 publications

References 24 publications

Evaluating the Physical and Mechanical Properties of Particleboards Fabricated from Vernonia Arborea Buch. -Ham and Eleocharis sp. Fibers with PVAc Adhesive

Evaluating the Physical and Mechanical Properties of Particleboards Fabricated from Vernonia Arborea Buch. -Ham and Eleocharis sp. Fibers with PVAc Adhesive

Study of Chemical and Anatomical Properties of Jurinea consanguinea DC. (Compositae Giseke) In terms of Potential Applications: Insights into Root, Root Collar, and Stem Structure

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