Pengaruh Compaction Ratio Terhadap Sifat Papan Lantai Partikel Kayu Jati Dan Sengon

Wood particle board is one of building materials which can be used as floor like solid wood. To utilize particle boards with appropriate compaction ratio, study should be conducted to know the influence of compaction ratio on the particle board characteristics of two wood species namely teak and sengon, and the research result could be used as a base of the assessment to particle board for building. The preliminary test was done to know the density of teak and sengon wood. This study used teak and sengon wood particles with 10% by weight of particle urea formaldehyde adhesive UA-147. This study was arranged in the completely randomised design with factorial experiment. The factors in this experiment were compaction ratio and wood species, while the parameters which observed were density, water content, water absorption, thickness swelling, internal bonding, hardness, MOE, and MOR. The research result showed that the higher compaction ratio, the higher density, internal bonding, hardness, MOR and MOE of both species particle board, the higher thickness swelling, and the lower water absorption of sengon particle board. The highest average density of the teak particle board was 0,80 g/cm3 (J1K3) and 0,67 g/cm3 for sengon (J2K6). The highest average internal bonding of the teak particle board was 5,20 kg/cm2 (J1K3) and 5,85 kg/cm2 for sengon (J2K6). The highest average hardness of the teak particle board was 666,7 kg/cm2 (J1K3) and 533,3 kg/cm2 for sengon (J2K6). The highest average MOR of the teak particle board was 145,9 kg/cm2 (J1K3) and 162,7 kg/cm2 for sengon (J2K6). The highest average thickness swelling of the sengon particle board was 30,76% (J2K4) and 11,84% the lowest (J2K3). The highest average MOE of the sengon particle board was 18605,45 kg/cm2 (J2K6) and 22580,41 kg/cm2 for the teak (J1K3). The highest average water absorption of the sengon particle board was 170,30% (J2K1) and 72,12% the lowest (J2K6). With the same compaction ratio of the teak and sengon particle board, the teak wood species had the better physic and mechanic characteristics than sengon. Based on the comparation result with some industries standard of the particle board, it showed that particle boards J2K1, J2K2, and J2K3 did not correspond to some industries standard

Mutu Papan Partikel Dari Kayu Kelapa Sawit (KKS) Berbasis Perekat Polystyrene

The specific target of this research is finding out an ideal composition of wood palm oil particle and polystyrene in standard particle board. Indonesian standard of SNI 03-2105-1996 used for reference of test result. The experiment started by screening of particle, mixing, forming of particle board, and test. Forming elements are wood palm oil particle, PS, benzoyl peroxide, maleated coupling agent, and xilena. The compositions of mass fraction KKS-PS: 20:80, 30:70, 40:60, 50:50, 60:40, 70:30 and 80:20. Testing was performed mechanical, physical and fraktografi analysis. Results of mechanical and physical test show that particle board characteristics increase due to the increase of adhesive concentration. From the variation of composition, starting composition of KKS-PS, 60:40 has been used in the manufacture of particle board KKS. Tensile strength and flexural strength optimum of particle board KKS-PS is 55.15 kg/cm2 and 92.27 kg/cm2. The particle board wood palm oil with adhesive polystyrene fulfilled the acceptable Indonesian standard of SNI 03-2105-1996

The 3 DLE instrument on ATS-5

The performance and operation of the DLE plasma electron counter on board the ATS 5 are described. Two methods of data presentation, microfilm line plots and spectrograms, are discussed along with plasma dynamics, plasma flow velocity, electrostatic charging, and wave-particle interactions

Sifat Fisik dan Mekanik Papan Partikeldari Kayu Sengon (Paraserianthes Falcataria. L) dan Serbuk Sabut Kelapa (Cocos Nucifera.l)

This research aims to utilize the low quality of wood i.e.sengon (Paraserianthes falcataria) and waste of Coconut fiber dust to made particle board. Particle board made with different ratio i.e 100% sengon, 80% sengon and 20% Ccocnut fiber with adhesive concentration of 12%, 14% and 16%. Particle board made with size 30 cm x 30 cm x 1 cm with a density of 0,6 g/cm3 at a pressure of 25 kg/cm2 at 1400C for 8 minutes. Evaluated the physical properties (density, water content, water absorption and thickness swelling) and mechanical properties modulus of elastis (MOE), modulus of rupture (MOR) and internal bonding (IB) was conducted in accordance with JIS A 5908-2003 standard. The results showed that the density value sranged between 0.53g/cm3 - 0.58g/cm3, water contentranged from 6.63%-8.27%, thickness swelling ranged between7.51% -11.75%,water absorption ranged between 53.75% - 64.62%, MOE ranged between 14654.54 kg/cm2 - 18031.95 kg/cm2, MOR ranged between 169.54kg/cm2 - 218.47 kg/cm2, internal bonding ranged from3.33 kg/cm2-4.93 kg/cm2. The particle board values can fulfill the standart of JIS A 5908-2003, except for the value of the MOE. Composition of raw materials significantly affect the water absorption value, MOE and MOR mean while the concentration of adhesive significantly affect the value of thickness swelling, water absorption, MOE and MOR. Interaction between the ratio of raw material and concentration of adhesive did not significantly affect the physical and mechanical properties of particle board. The best values of particle board was achieved with composition sengon 80% and 20% coconut fiber dust withan adhesive concentration 16%. Keyword : Coconut fiber, paraserianthes falcataria, particle board, physical, mechanical properties

Properties of Particleboard and Particle-Filled Thermoplastic Composite from Bamboo (Gigantochloa Scortechinii)

The mensurational attributes of culm basal diameter, weight and volume (except for culm wall thickness) were found to be significantly affected by age. Initial moisture content was observed to decrease while oven dry density increases significantly with age and culm portion. Cold water, hot water and alkali solubles were significantly influenced (p < 0.05) by the age and culm portion while the holocellulose content increased significantly (p < 0.05) with age but remained almost constant with culm height. In the manufacture of single-layer urea formaldehyde particleboard, all the board properties were observed to be significantly influenced at p < 0.05 by the main factors of age, particle size, resin and wax content. For the three-layer particleboard, the age of culm, core particle size and wax content had significant effects on all the board properties. Single-layer melamine urea-formaldehyde particleboards manufactured from vanous age culms varied significantly (p < 0.05) in all the mechanical and physical properties with age (except for internal bond), resin content, particle size and wax addition. For three-layer particleboards, age showed significant effects on all the board properties (except for modulus of rupture, modulus of elasticity and screw withdrawal surface), while core particle size significantly affected all the board properties. Wax addition improved the board dimensional stability but decreased the mechanical properties (except for modulus of elasticity). Bamboo-filled thermoplastic composite board properties varied significantly with age of culm, particle size, filler loading and maleated anhydride polypropylene addition. The bamboo density and its chemical properties affected some of the particleboard properties but their influence on the final bonding of the board were neglegible. However, bamboo-filled thermoplastic composite board properties were not affected by the variation in the chemical composition of the material. Regardless of age of bamboo, the bamboo particles were found to be suitable materials for the manufacture of particleboards and thermoplastic composites

Pemanfaatan Limbah Padat Industri Penyamakan Kulit (Shaving) Untuk Papan Partikel Polyvinyl Chlorida

The aim of this research was to study the effect of solid waste of leather tanning industry(shaving) to physical properties of PVC particle board. Particle board was produced from PVC,additives material and solid waste of leather tanning industry (shaving). The variation of solidwaste (shaving) content are 0; 10; 20; 30; 40; 50; 60; and 70 phr respectively. The compound wasmade by mixer and two roll mill unheated, mixing by torque speed 30 rpm. Press condition are165oC, 150 kg/cm2, and it needs 6 minutes for 2 mm thickness and 30 minutes for 10 mmthickness (depend on kinds of test). The particle board was tested physical properties by methodsof SNI 03-2105-2006 Mutu Papan Partikel. The test result of physical properties showed thatsolid waste of leather tanning industry for particle board was significant enfluence to increasedtensile strength, water contains, thickness swelling, but decreased screw withdrawl andflexibility. Solid waste of leather tanning industry (shaving) added was not significant influenceto density

Variation of Particle Pretreatment of Subterranean Termite Attack on Particle Board From Oil Palm Trunk Waste with Phenol Formaldehyde Adhesive

These research were to known the particle pretreatment on the durability properties of particleboard on termites attack. The variation of particle pretreatment in this research were done by soaking the particle in hot water (1,2 and 3 hours) and cold water (24, 48 and 72 hours). The particle board was made from oil palm trunk using of phenol formaldehyde adhesive with size 30 cm x 30 cm x 1 cm and density target of 0.7 g/cm3. Particle board will be test by grave yard test along 100 days for durability from termites attack and will be compared by Indonesia National Standard (SNI) 01-7202-2006. The result showed that the weight loss of particle board values were 38.63-88.11%. Based on termites attack level, it was classified as very low durability

Thermal conductivity and water vapour transmission properties of wood-based materials

For several wood-based materials (plywood, OSB, melamine faced board (MFB), particle board and fibre board), the thermal conductivity was determined as afunction of the temperature (ranging between 10 and 30°C) and also the moisture content (from an oven-dry sample up to amoisture content at 80% RH). Furthermore, the water vapour resistance factor of these materials as well as of the coating (at MFB) and the diffusion coefficient were determined under dry cup (performance at low humidity dominated by vapour diffusion) and wet cup (performance at high humidity with liquid water and vapour transport) conditions. Thermal conductivity increases with rising temperature, moisture content and density. Moreover, aclear decrease of thermal conductivity was found with decreasing particle size at the same density level, from solid wood over plywood and particle board to fibre board. The water vapour resistance factor of the wood-based materials increases with rising density and decreases with increasing moisture content. An influence of the particle and fibre board thickness was also revealed. In contrast to the remaining materials, an increase of the water vapour resistance factor with increasing moisture content was measured for the coating. The diffusion coefficient decreases with rising density and moisture conten