Dimensional Stability and Mechanical Properties of Citric Acid Impregnated Samama Wood (Anthocephalus macrophyllus (Roxb) Havil) at High Curing Temperatures

Q2 Engineering

Journal of the Korean wood science and technology Pub Date : 2023-11-01 DOI:10.5658/wood.2023.51.6.431

S. Augustina, S. D. Marbun, Sudarmanto, Narto, D. R. Trisatya, Eko Budi Santoso, Dhimas Pramadani, Nanda Nur Afni, Tushliha Ayyuni Fariha, G. W. L. Tobing, Wasrin SYAFI’I, T. Cahyono, Eka Novriyanti, Muhammad Bula, A. Bahanawan, P. S. Sejati, Nam Hun Kim, W. Dwianto, Philippe Gérardin

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引用次数: 0

Abstract

Samama wood ( Anthocephalus macrophyllus (Roxb) Havil) is a fast-growing and lesser-utilized wood species that has inferior properties; therefore, its quality needs to be improved. This research aimed to determine the effect of citric acid impregnation at high curing temperatures on the dimensional stability and mechanical properties of wood. Citric acid solution with 10% concentration (w/w) was impregnated into wood samples by vacuum-pressure method (–0.5 cmHg, 30 min; 0.7 MPa, 3 h), followed by curing process at 140℃, 160℃, and 180℃ of temperature for 1 h. In comparison, the other wood samples were heat treated at the same temperatures and time. The results showed that the increase in curing and heat temperatures for both treatments were directly proportional to the dimensional stability, but inversely proportional to the mechanical properties. Citric acid impregnated had higher density, dimensional stability, and mechanical properties, except for modulus of rupture, than that of heat treatment. The optimum temperature is suggested at 160℃ in both treatments.

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高固化温度下柠檬酸浸渍萨玛木（Anthocephalus macrophyllus (Roxb) Havil）的尺寸稳定性和机械特性

萨马木（Anthocephalus macrophyllus (Roxb) Havil）是一种生长迅速、利用率较低的木材树种，其特性较差，因此需要提高其质量。本研究旨在确定在高固化温度下柠檬酸浸渍对木材尺寸稳定性和机械性能的影响。采用真空加压法（-0.5 cmHg，30 分钟；0.7 MPa，3 小时）将浓度为 10%（重量比）的柠檬酸溶液浸渍到木材样品中，然后在 140℃、160℃ 和 180℃的温度下固化 1 小时。结果表明，两种处理方法的固化和加热温度的增加与尺寸稳定性成正比，但与机械性能成反比。与热处理相比，柠檬酸浸渍具有更高的密度、尺寸稳定性和机械性能（断裂模数除外）。两种处理方法的最佳温度均为 160℃。

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来源期刊

Journal of the Korean wood science and technology Materials Science-Materials Science (miscellaneous)

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： The Journal of the Korean Wood Science and Technology (JKWST) launched in 1973 as an official publication of the Korean Society of Wood Science and Technology has been served as a core of knowledges on wood science and technology. The Journal acts as a medium for the exchange of research in the area of science and technology related to wood, and publishes results on the biology, chemistry, physics and technology of wood and wood-based products. Research results about applied sciences of wood-based materials are also welcome. The Journal is published bimonthly, and printing six issues per year. Supplemental or special issues are published occasionally. The abbreviated and official title of the journal is ''J. Korean Wood Sci. Technol.''. All submitted manuscripts written in Korean or English are peer-reviewed by more than two reviewers. The title, abstract, acknowledgement, references, and captions of figures and tables should be provided in English for all submitted manuscripts.