PENGARUH TEPUNG GAPLEK DAN DEKSTRIN SEBAGAI EKSTENDER PEREKAT UREA FORMALDEHIDA TERHADAP KETEGUHAN REKAT KAYU LAPIS KAPUR

Adi Santoso1, Paribotro Sutigno2

Abstract


Urea formaldehyde resin is an adhesive for interior plywood manufacturing. Some materials can be added to the resin to reduce the glue utilization. This paper describes a study on the effect of extender addition to urea formaldehyde resin on the bonding strength of kapur (Dryobalanops sp.) plywood. This research used cassava flour and its dextrin as an extender with 3 percentage levels of extender i.e.: 10 %, 30%, and 50% based on weight of liquid resin. Each extender type has refinement of 100 and 200 mesh.

The results showed that the effect of extender type on plywood bonding strength was not significant, while the percentage of extender has highly significant effect on the plywood bonding strength. The higher the extender percentage the lower the plywood bonding strength. Cassava flour 30% and its dextrin for extender meet the Japanese standard.


Keywords


Ekstender, urea formaldehida, kayu lapis, dekstrin, tepung gaplek

References


Anonim. 1966. Plywood and wood-based panels. Food and Agriculture Organizations of

United Nations, Rome: pp. 28, 60, 35.

--------- , 1981. Daftar komposisi bahan makanan. Direktorat Gizi, Jakarta. P. 20.

Perry, T.D. 1947. Modern wood adhesive. Pitman Pub. Corp. New York.

Santoso, A., A. Firmanti dan R.A. Karno. 1998. Pengaruh penambahan ekstender dalam perekat fenol formaldehida terhadap keteguhan rekat kayu lapis tusam. Buletin Penelitian Hasil Hutan 15(5): 337 - 347. Pusat Penelitian dan Pengembangan Hasil Hutan. Bogor.

Sudjana, 1980. Disain dan analisis eksperimen. Tarsito. Bandung.

Sumadiwangsa, S. 1995. Viscosity and bond quality of urea formaldehyde adhesive extended with acid modified phosphorylated sagu (Metoxylon sp). Oregon State University. Oregon.

Sutigno, P, dan N. Kamil. 1975. Kayu meranti merah (Shorea reprosula Miq) untuk bahan kayu lapis. Laporan No. 50. Lembaga Penelitian Hasil Hutan. Bogor.

---------- ,Sadan, W., C.G. Sarayar dan A.A. Matjik. 1983. Pengaruh campuran terigu dan tapioka sebagai ekstender perekat urea formaldehida terhadap keteguhan rekat kayu lapis meranti dan keruing. Majalah Kehutanan Indonesia No. 6. Jakarta.

----------- , 1986. Diktat pengujian kayu lapis. Pusat Penelitian dan Pengembangan Hasil Hutan. Bogor.

----------, 1988. Pengaruh ekstender dan pengisi dalam perekat urea formaldehida terhadap daya rekat kayu lapis meranti (Shorea spec.) dan kapur (Dryobalanops sp.). Fakultas Pasca Sarjana, Instititut Pertanian Bogor. Bogor.

Warsa, S.R. 1983. Gluability of rotary cut veneers from some Indonesian wood using adhesives extended with nami and cassava flours. Ph.D. Disertation. University of the Philippines at Los Banos.

Wahyuningsih, E. 1985. Pengaruh campuran sagu dan bungkil biji karet sebagai ekstender urea formaldehida terhadap keteguhan rekat kayu lapis meranti merah. Fahutan IPB. Bogor. Skripsi (Tidak diterbitkan).

Winarno, G.G. 1984. Kimia pangan dan gizi. Edisi I, PT Gramedia. Jakarta.




DOI: https://doi.org/10.20886/jphh.2004.22.2.61-68

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