Improving The Physical Properties of Young Teak Wood Through Phenol Formaldehyde Compregnation

Agung Dwi Saputra, Joko Sulistyo

Abstract


Young teak wood exhibits inferior properties due to a high proportion of juvenile wood and sapwood. The modification through compregnation of phenol formaldehyde is required to improve wood qualities. Therefore, this study aimed to observe the possibility of improving the physical properties of young teak wood (15 years) using phenol formaldehyde compregnation at various concentrations (5%, 10%, 15%) and pressing times (15, 30, 60 minutes). The results showed that phenol formaldehyde concentration produced retention with a maximum value of 31.19 kg/m3. Based on wood without treatment (controls), the compregnation significantly increased the redness (a*) level by 45.57% and the specific gravity by 7.93%. The decreasing levels after treatment were observed in the brightness (L*) (by 36.56%), the yellowness (b*) (by 38.40%), and air-dried moisture contents by (by 5.44%). Furthermore, the reduction in hygroscopicity was observed in an equilibrium moisture content level in various relative humidity, as well as in increasing the stability dimension, though in a small magnitude.


Keywords


wood modification; pressure; higroscopicity; anisotropy; Tectona grandis L.f.

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References


Aini, N.S., Edi S.B., I. Sumardi. 1999. Perbaikan kualitas kayu sawit dengan teknik impregnasi/ compregnasi (iii) : Compregnasi kayu sawit dengan fenol formaldehida. Prosiding Seminar Nasional II Masyarakat Peneliti Kayu Indonesia. p. 369. Yogyakarta.

British Standard Institution. 1957. British Standard Methods of Testing Small Clear Speciments of Timber. British Standard Institution,Royal Charter British Standard House. London.

Hidayati, F.; J. Sulistyo; G. Lukmandaru; T. Listyanto; H. Praptoyo; R. Pujiarti. 2015. Physical and mechanical properties of 10-Year old superior and conventional teak planted in Randublatung Central Java Indonesia.. Jurnal Ilmu Teknologi Kayu Tropis 13(1): 11-21.

Hill, C.A.S. 2009. The potential for the use of modified wood products in the built environment. Proceedings of The 11th International Conference on Non-conventional Materials and Technologies. p1-6. Bath, UK.

Hunt, GM.; G.A. Garratt. 1986. Pengawetan Kayu. 1st Edition. Terjemahan M. Yusuf. Akademika Pressindo. Jakarta.

Kollmann, F.P.F.; E.W. Kuenzi, A.J. Stamm. 1975. Principles of Wood Science and Technology. Springer-Verlag Berlin Heidelberg. New York.

Lukmandaru, G; K. Ogiyama 2005. Bioactive compounds from ethyl acetate extract of teakwood (Tectona grandis L.f.). Proceedings of the 6th International Wood Science Symposium LIPI-JSPS Core, pp 346-350, Bali.

Marsoem, S.N.; V.E.Prasetyo; J. Sulistyo; Sudaryono; G. Lukmandaru. 2014. Studi mutu kayu jati di hutan rakyat Gunungkidul. III. Sifat fisika kayu. Jurnal Ilmu Kehutanan 8(2):75-88.

Romagnoli M.; E. Segoloni; M. Luna; A. Margaritelli; M. Gatti; U. Santamaria; V. Vinciguerra. 2013. Wood colour in lapacho (Tabebuia serratifolia): Chemical composition and industrial implications. Wood Science and Technology 47: 701–716.

Shams, M.I.; H. Yano, K. Endou. 2004. Compressive deformation of wood impregnated with low molecular weight phenol formaldehyde (PF) resin I : Effects of pressing pressure and pressure holding. Journal Wood Science 50:337-342.

Shams, M.I.; H. Yano. 2008. A new method for obtaining high strength phenol formaldehyde resin-impregnated wood composites at low pressing pressure. Journal of Tropical Forest Science 21(2): 175–180 (2009).

Shmulsky. R.; P.D. Jones. 2011. Forest Products and Wood Science: An Introduction, Sixth Edition. John Wiley & Sons, Inc.

Sumardi, I., Edi, S.B. dan Y.S. Hadi. 1999. Perbaikan kualitas kayu sawit dengan teknik impregnasi/ compregnasi (II) : Impregnasi kayu sawit dengan fenol formaldehida. Prosiding Seminar Nasional II Masyarakat Peneliti Kayu Indonesia. pp 360-368. Yogyakarta.

Young, J.F. 1967. Humidity control in the laboratory using salt solutions - A review. Journal of Applied Chemistry 17:241–245.

Wedatama, S.; JPG Sutapa; D. Irawati. 2014. Peningkatan kualitas kayu karet dengan compregnasi menggunakan urea formaldehida. Prosiding Seminar Nasional Masyarakat Peneliti Kayu Indonesia (MAPEKI) XVI. 113-116.




DOI: https://doi.org/10.51850/wrj.2021.12.1.28-34

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