Dimensional Stability and Characteristics of Modified Young Teak (Tectona grandis L.f.) Wood with PEG-1000

Tomy Listyanto, Muhammad Navis Rofii, Keisuke Ando, Nobuaki Hattori

Abstract


The aim of this study was to investigate the effect of wood modification with polyethylene glycol (PEG)-1000 at five concentrations to improve dimensional stability, drying, machining and finishing characteristics of young teak wood. A total of 12 samples for each treatment was prepared to measure an Anti Shrink Efficiency (ASE), as a parameter of dimensional stability and its drying characteristics. Six samples for each treatment were prepared to evaluate machining and finishing characteristics. PEG-1000 with five concentration levels of 20%, 30%, 40%, 50% and 60% were impregnated to modify the samples, except control. Afterward, all samples were kiln dried to gain 12% moisture content. ASE was determined by comparing shrinkage percentage of treated sample with those of untreated one. Warping and surface checks were measured as drying characteristics and machining test was conducted in accordance to ASTM D1666-2004. After coating with a nitrocellulose system, surface quality were evaluated by conducting cross-cut test (ASTM D3359), coin test, delamination test (SNI 01-5008.2-1999b) and glossyness test (SNI-06-6052-1999a). Result shows that dimensional stability of impregnated samples with concentration of 30~60% was successfully improved, with ASE of 52~62%. All treated samples demonstrated good drying characteristics and defect-free areas which were more than 90% under machining test. Surface evaluation by delamination test, glossyness test, and coin test indicated that all impregnated samples were well coated by a nitrocellulose system. However, only impregnated samples in concentration of 20% and 30% showed a good result in cross-cut test. Impregnation with PEG-1000 in concentration of 30% is recommended to modify young teak wood. 


Keywords


teak; PEG-1000; dimensional stability; drying; machining; finishing

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References


ASTM International. 2004a. ASTM D1666 - 87. Standard Methods for conducting Machining Tests of Wood and Wood-Base Materials. West Conshohocken, PA, USA:

ASTM International. ASTM International. 2004b. ASTM D3559. Standard Test Methods for Measuring Adhesion by Tape Test. . West Conshohocken, PA, USA: ASTM International.

Avramidis, G.; G. Scholz; E. Nothnick; E. Militz; W. Viol; and A. Wolkenhauer. 2011. Improved Bondability of Waxtreated Wood following Plasma Treatment. Wood Science and Technology 45(2): 359-368.

Davis, E.M. 1962. Machining and Related Characteristics of United States Hardwoods. In. Technical Bulletin No. 1267, United States Department of Agriculture, Forest Service. p. 70.

Fadl, N.A. and A.H. Basta. 2005. Enhancement of the Dimensional Stability of Nature Wood by Impregnates. Pigment and Resin Technology 34(2): 72-86.

Hadikusumo, S.A. 2001. Sawing Pattern of Teakwood from the Community Forest and its Physical and Mechanical Properties. Forestry Bulletin 47: 1-14.

Hillis, W.E. 1984. High Temperature and Chemical Effects on Wood Stability. Wood Science and Technology 18(4): 281–293.

Ibach, R.E. 1999. Specialty Treatments. In, Wood Handbook: Wood as an Engineering Material. U.S. Department of Agriculture, Forest service, Forest Products laboratory, Wisconsin, p. 463.

Jeremic, D.; P. Cooper; D. Heyd. 2007. PEG Bulking of Wood Cell Walls as Affected by Moisture Content. Wood Science and Technology 41: 597-606.

Koch, P. 1964. Wood Machining Process. The Ronald Press Company, New York.

Kollmann, F.F.P.; E. W. Kuenzi; A. J. Stamm. 1975. Principle of Wood Science and Technology. SpringerVerlag, New York.

Mahlberg, R.; L. Paajanen; A. Nurmi; A. Kivisto; K. Koskela; R.M. Rowell. 2001. Effect of Chemical Modification of Wood on the Mechanical and Adhesion Properties of Wood Fiber/Polypropylene Fiber and Polypropylene/Veneer Composites. Holz als Roh und Werkstoff 59: 319-326.

Mitchel, H.L., 1971. How PEG Helps the Hobbyist Who Work with Wood. In. United State Department of Agriculture, Forest Service, Forest Products Laboratory.

Mitchell, H.L., and H.E. Wahlgren. 1959. New Chemical Treatment Curbs Shrink and Swell of Walnut Gunstocks. Forest Products Journal 9(12): 437-441.

Mortensen, M.N.; H. Egsgaard; S. Hvilsted; Y. Shashoua; and J. Glastrup. 2007. Characterization of the Polyethylene Glycol Impregnation of the Swedish Warship Vasa and One of the Danish Skuldelev Viking ships, Journal of Archaeological Science 34(8): 12111218.

Pandey, D. and C. Brown. 2000. Teak: A Global Review. Unasylva 201 51: 3-13.

Panshin, A.J. and C. de Zeeuw. 1980. Text Book of Wood Technology. McGraw-Hill Book Company, New York. Ralph, J. 2006. PEG Penetration and the Effects of PEG Pretreatment in Air-dried Eucalyptus regnans. Wood and Fiber Science 38(1): 139-143.

Richter, K.; W.C. Feist; and M.T. and Knaebe. 1995. The Effect of Surface Roughness on the Performance of Finishes. Part 1: Roughness Characterization and Stain Performance. Forest Product Journal 45: 91-97.

Rowell, R.M. and R.L. Youngs. 1981. Dimensional Stabilization of Wood in Use. In. Forest Products Laboratory, United States Department of Agriculture, Winconsin.

Sangkul, S. 1998. Processing and Development Technology and Future Trends for Teak Utilization. In: M, K., K, W. (Eds.), The Second Regional Conference on Teak. FAO, pp. 123-130.

Schneider, M.H. 1994. Wood Polymer Composites. Wood and Fiber Science 26(1): 142-151.

Stamm A.J. 1959 Effect of Polyethylene Glycol Treatment Upon Dimensional Stabilization and Other Properties of Wood. For Prod J 9: 375-381

Standard National Indonesia (SNI). 1999a. SNI 06 – 6052 – 1999, Gloss Test Procedure (Cara Uji Kilap Jadi). Badan Standarisasi Indonesia – BSN. Jakarta.

Standard National Indonesia (SNI). 1999b. SNI 01-5008.21999. Plywood and Block Board for General Purposes (Kayu Lapis dan Papan Blok Penggunaan Umum). Badan Standarisasi Indonesia – BSN. Jakarta.

Walker, J.C.F. 2006. Primary Wood Processing: Principles and Practice. Chapman & Hall, London.

Wallstrom, L. and K.A.H. Lindberg. 1995. Wood Surface Stabilization with Polyethylene Glycol. Wood Science and Technology 29: 109-119.

Williams, R.S. 1999. Finishing of Wood. In, Wood Handbook: Wood as an Engineering Material. Forest Products Laboratory, USDA Forest Service,Wisconsin.


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