PENGARUH WAKTU TEKAN DAN UKURAN PARTIKEL KULIT TUSAM (Pinus merkusii Jungh. et. de Vr.) TERHADAP KUALITAS PAPAN PARTIKEL

Abstract

Nowadays binderless particleboards have chance to be developed to replace particleboard with synthetic adhesive. The objectve of this research is to determine the quality of particleboards made from oil palm empty fruit bunches (OPEFB) and pine bark waste. The material composition of particleboard consist of 70% OPEFB and 30% pine bark powder with a moisture content of 5−6%. The fiber length of OPEFB is 0.1−2.0 cm and the pine bark particle sizes used to produce particleboard which passed through 30, 40, and 50 meshes. Four variations of pressing time are applied to produce particleboard i.e 10, 15, 20 and 25 minutes. Quality assesments were undergone using the Indonesian standard for particleboard product: SNI 03-2105-2006. Results showed that the best pressing time for making particleboards using OPEFB and pine bark is 20−25 minutes. The best MOR and IB are obtained from particleboard produced from oil palm fruit empty bunches with the particle size of 50 mesh. In this condition, except for MOE, the density, moisture content, MOR and IB meet the SNI requirements for particleboard. ABSTRAK Papan partikel tanpa perekat sintetis memiliki peluang untuk dikembangkan menggantikan produk serupa dengan perekat sintetis. Pemanfaatan tandan kosong kelapa sawit (TKKS) dan kulit tusam sebagai papan partikel merupakan hal yang menarik dan belum banyak diteliti. Penelitian ini bertujuan untuk memperoleh papan partikel yang memenuhi standar SNI 03-2105-2006. Komposisi papan partikel adalah 70% TKKS dan 30% kulit tusam, panjang serat TKKS 0,1−2,0 cm dan kadar air 5−6%. Variasi ukuran partikel kulit tusam adalah lolos saringan 30, 40, dan 50 mesh. Papan partikel dibuat dengan empat variasi waktu kempa panas yaitu 10, 15, 20 dan 25 menit. Hasil pengujian menunjukkan bahwa waktu kempa panas 20−25 menit merupakan waktu terbaik untuk pembuatan papan partikel dari tandan kosong kelapa sawit dan kulit tusam. Pada produk papan partikel yang dibuat dengan ukuran partikel kulit tusam 50 mesh diperoleh sifat fisik dan mekanik yang sebagian besar memenuhi SNI 03-2105-2006 untuk papan partikel kerapatan sedang tipe 8, kecuali sifat mekanik MOE belum memenuhi syarat.

Reforestation and Sustainable Management of Pinus merkusii Forest Plantation in Indonesia: A Review

“…It was the dominant species used for the rehabilitation covering more than 64% of all of the planted tree species. Planting Sumatran pine for plantation and rehabilitation purposes was not limited to Java and Sulawesi islands only but also covered other regions outside its natural habitat expanding to Sumatera island, i.e., West Sumatera [41], Riau [42], South Sumatera [43], Bengkulu [44], Jambi [45], Lampung [46], Kalimantan Island [47], Bali and Nusa Tenggara Islands [48], Moluccas [49], and also in Papua [50]. The natural and artificial distribution of Sumatran pine in Indonesia can be seen in Figure 1.…”