SIFAT FISIS MEKANIS PAPAN PARTIKEL DARI LIMBAH KAYU GERGAJIAN BERDASARKAN UKURAN PARTIKEL

2010 ◽  
Vol 2 (2) ◽  
pp. 13
Author(s):  
Saibatul Hamdi
Keyword(s):  
Modulus Of Elasticity ◽  
Dry Weight ◽  
Modulus Of Rupture ◽  
Particle Board ◽  
Average Value ◽  
Size Measure ◽  
Standard Quality ◽  
Ficus Glomerata ◽  
Research Show

This research to exploit the waste sawdust of wood lua (Ficus glomerata ROXB) for the making particle board with the variation size measure particle that is 60 mesh, 80 mesh and mixture (60 mesh+80 mesh). Wood lua represent the wood less be recognized and to lower specific gravity. Agglutinant use the glue of Urea Formaldehyda (UF) with the glue concentration 20% from dry weight particle substance. The result of research show the average value board particle wood lua made for moisture content to range from 9,25-9,41%; wood density as 0,60-0,63 gr/cm3; thickness swelling as  9,13-9,53 %; modulus of rupture (MoR) 97,63-101,59 kgf/cm2; modulus of elasticity (MoE) 1,12-1,32.104 kgf/cm2; tensile strength as 2,96-3,99 kgf/ cm2. As a whole result examination  nature of fisis and mechanical particle board wood lua the standard quality of SNI 03-2105-2006 except for the examination modulus of elasticity (MoE).Key wood : lua, fisis, mechanical, particle.

Pengaruh Tekanan dan Penggunaan Conplast terhadap Sifat Mekanik Eternit dari Abu Cangkang Sawit

2016 ◽  
Vol 8 (15) ◽  
pp. 47-54
Author(s):  
Haspiadi Haspiadi
Keyword(s):  
Mechanical Properties ◽  
Oil Palm ◽  
Modulus Of Elasticity ◽  
Modulus Of Rupture ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Density Values ◽  
Test Result

The purpose of this research is to know the influence of pressure and use of conplast against mechanical properties which are a Modulus of Elasticity (MOE) and Modulus of Rupture (MOR) of plasterboard. The study is done because still low quality of plasterboard made from a mixture of ashes of oil-palm shell especially of the mechanical properties compared to the controls. The method of this reserach used variation of printed pressure and the addition of conplast. Test result is obtained that the highest value of Modulus of Elasticity (MOE) 90875.94 Kg/cm2, Modulus of Rupture (MOR) 61.16 Kg/cm2 and density values in generally good printed at the pressure 60 g/cm3 and the addition of conplast 25% as well as the composition of the ash of palm shell oil 40%: limestone 40%: cement 15%: fiber 5% and 300 mL of water. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui pengaruh tekanan dan penggunaan conplast terhadap sifat mekanik yaitu kuat lentur dan keteguhan patah eternit berbahan dasar abu cangkang sawit. Penelitian ini dilakukan karena masi rendahnya mutu eternit berbahan campuran abu cangkang sawit dari bolier khususnya sifat mekanik dibandingkan dengan kontrol. Metode penelitian yang digunakan adalah dengan variasi tekanan cetak dan penambahan conplast. Hasil uji diperoleh bahwa kuat lentur tertinggi sebesar 90875,94 Kg/cm2 dan keteguhan patah sebesar 61,16 Kg/cm2, yang dicetak pada tekanan 60 g/cm3 dan penambahan conplast 25% dengan komposisi  abu cangkang sawit 40 %: kapur 40 % : semen 15 %: serat 5 % dan air 300 mL.Kata Kunci :  Abu cangkang sawit, conplast, kuat lentur, keteguhan patah.

The quality of the wood bonding depending on the method of applying the selected thermoplastic biopolymers

2021 ◽  
Vol 116 ◽  
pp. 78-85
Author(s):  
Aneta Gumowska ◽  
Grzegorz Kowaluk
Keyword(s):  
Shear Strength ◽  
Solid Wood ◽  
Average Value ◽  
Wood Bonding ◽  
Research Show

The quality of the wood bonding depending on the method of applying the selected thermoplastic biopolymers. The aim of the research was to determine the effect of the method of applying the biopolymer on the surface of bonding solid wood elements on the quality of the obtained adhesive connection. The results of conducted mechanical research show that the highest average value of shear strength was observed for birch lamellas bonded with PLA, both with the first and second method of application. In case of estimating the quality of the bonding of wooden elements, better results were achieved for PLA and the second method of application the "green" adhesive.

scholarly journals Application of the Servqual Method and the Kano Model as Measurement of Service Quality towards Customer Satisfaction in Senyum Media Bondowoso

2021 ◽  
Vol 1 (4) ◽  
pp. 324-331
Author(s):  
Firrizqi Satria Wibawa ◽  
Nurul Qomariah ◽  
Yusron Rozzaid
Keyword(s):  
Customer Satisfaction ◽  
Service Quality ◽  
Consumer Satisfaction ◽  
Quantitative Research ◽  
Sampling Technique ◽  
Kano Model ◽  
Average Value ◽  
Level Of Satisfaction ◽  
Research Show

This research aims to analyze the level of customer satisfaction to services and explain the factors that must be prioritized in order to meet consumer expectations in Senyum Media Bondowoso. The method used is quantitative research with the Servqual method and the Kano model. The population of this research is all the customers of the Senyum Media Bondowoso store and the samples used are 150 samples using the Purposive Sampling technique. The results of the research show that the quality of service in CV. Senyumindo Mediatama Bondowoso is not in accordance with what is desired by customers, because the calculation is carried out using the Service Quality method, the results obtained are the average value of service quality, the average value of service quality for all dimensions of service quality is -4,967. On the other hand, for the Kano category is in the Indifferent category, which means that the attributes that are in the category of less attention by consumers, therefore the existence of these attributes does not affect the decrease or increase in the level of satisfaction of consumers. This category has no effect on consumer satisfaction with functional or dysfunctional services and goods.

scholarly journals Analysis of water quality in Maninjau Lake, West Sumatera, Indonesia using phytoplankton

2018 ◽  
Vol 197 ◽  
pp. 13007
Author(s):  
Muhammad Arif Salsabil ◽  
Astri Rinanti ◽  
Melati Ferianita Fachrul
Keyword(s):  
Water Quality ◽  
Diversity Index ◽  
Inorganic Contaminants ◽  
Dominance Index ◽  
Average Value ◽  
Quality Of Water ◽  
Evenness Index ◽  
Polluted Waters ◽  
Research Show

This research aimed to analyze the water quality of Maninjau Lake (0°19'N 100°12'E, 0,317°S 100,2°E), West Sumatera, Indonesia by phytoplankton as bioindicator of water quality. The quality of water was determined by identified the phytoplankton. Analyzed phytoplankton as bioindicator with Diversity Index (H′), Evenness Index (E) and Dominance Index (D). The abundance of phytoplankton ranged 273-378 cell/liter, consists of three division which are Cyanophyta, Chrysophyta, and Chlorophyta. The average value of Diversity Index (H′) is 3.52 show that the waters classified as moderate, or indicating half-polluted waters. The average value of Evenness Index (E) is 0.92 indicating that the evenness of species is medium. The average value of Dominance Index (C) is 0.12, meaning there is not any phytoplankton dominance in the waters. Maninjau Lake is slightly polluted caused by organic and inorganic contaminants from many activities surrounding especially household and fish breeding activities. The research show that Maninjau Lake is in oligotrophic state or nutrient-deficient waters.

scholarly journals Variability of the parameters of technological quality in the Slovak spring barley gene pool

2012 ◽  
Vol 58 (3) ◽  
pp. 99-112
Author(s):  
Michaela Benková ◽  
Michaela Havrlentová ◽  
Ľubomír Mendel ◽  
Pavol Hauptvogel
Keyword(s):  
Agronomic Traits ◽  
Starch Content ◽  
Spring Barley ◽  
Barley Grain ◽  
Malting Quality ◽  
Qualitative Properties ◽  
Average Value ◽  
Standard Quality ◽  
Technological Quality

The total 43 Slovak spring barley genotypes with a year of cultivation or registration from 1938 to 2009 were evaluated in terms of selected parameters like protein, starch, and β-glucan contents. Collection of genetic resources consisted of barley malting qualities such as elite - A, standard quality - B, no malting quality - C and five genotypes of unspecified malting quality. Significant (P < 0.01) influence of genotype and environmental conditions (years) and also genotype × year interaction on protein, starch, and β-glucan content in the barley grain were detected. The highest average protein content was observed in genotypes from the group with undetermined malting quality. The protein and β-glucan contents in older genotypes were higher in comparison with more recent genotypes. The average starch content in both older and modern genotypes in the studied set was nearly identical, which confirms a high quality of the older malting varieties. According to malting quality groups, the highest average value of β-glucan content was in the group of no malting quality (C) and the lowest in the group of best malting quality (A), which is in correspondence with barley malting quality requirements. In individual years differences in the β-glucan content were found among genotypes. Despite the atypical years, good sources of β-glucan were found out along with modern genotypes such as Cyril and older genotypes such as Orbit and Vladan, but also historically old genotypes were created in the year 1946 such as Diosecký 802 and Slovenský Dunajský trh. Our study has confirmed that these genotypes are donors of not only significant agronomic traits but also qualitative properties, usable in the food industry.

scholarly journals SIFAT PAPAN PARTIKEL DARI SERAT TANDAN KOSONG SAWIT DAN SERBUK KAYU DENGAN PEREKAT UREA FORMALDEHIDA (The Properties of Particle Board from Oil Palm Empty Fruit Bunches Fiber Sawdust with Urea Formaldehyde Resin)

2016 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Djoko Purwanto
Keyword(s):  
Bond Strength ◽  
Modulus Of Elasticity ◽  
Internal Bond ◽  
Urea Formaldehyde ◽  
Internal Bond Strength ◽  
Modulus Of Rupture ◽  
Particle Board ◽  
Palm Fiber ◽  
Empty Fruit Bunches ◽  
Screw Withdrawal

A palm oil mill with a capacity of hundred thousand tons of fresh fruit bunches per year will produce palm fiber waste about 12,000 tons. Recently, the use of palm empty fruit bunches (OPEFB) fiber is as fuel for electricity generation in the industry. Palm fiber waste contains lignocellulose materials as a feedstock to particle board manufacture. The aim of this research is to evaluate the properties of particle board from a mixture of OPEFB fiber and sawdust. The ratio of OPEFB fiber and sawdust are 100% : 0%; 75% : 25%; 50% : 50%; 25% : 75% and 0% : 100%, plus urea formaldehyde adhesive in a concentration of 11%. The boards were pressed using a clamp pressure of 16 kg/cm2 for 15 minutes at a temperature of 110 – 120 0C. The testing methods and standards of physical properties (moisture contents, thickness swelling, density) and mechanical (modulus of elasticity/MOE, modulus of rupture/MOR, screw withdrawal and internal bond strengths) refers to the SNI. 03 – 2105 - 2006. The results showed that the particle board made from 100% OPEFB fiber produces modulus of elasticity/MOE 1594.88 kg/cm2; modulus of rupture/MOR 18.08 kg/cm2; screw withdrawal 31.34 kg/cm2 and internal bond strength 0.86 kg/cm2. The addition of sawdust for 50% can improve modulus of elasticity/MOE, modulus of rupture/MOR and internal bond strength.

PAPAN PARTIKEL DARI CAMPURAN LIMBAH ROTAN DAN PENYULINGAN KULIT KAYU GEMOR (Alseodaphne spp)

2014 ◽  
Vol 6 (1) ◽  
pp. 41
Author(s):  
Budi Tri Cahyana
Keyword(s):  
Tensile Strength ◽  
Modulus Of Elasticity ◽  
Raw Materials ◽  
Modulus Of Rupture ◽  
Particle Board ◽  
Materials Used

Utilization of rattan waste and gemor bark (Alseodaphne spp) distillation  for particle board had been carried out. The aim of this research was to know physical mechanical particle board from rattan waste mixed with gemor bark distillation. The raw materials used were cut-rattan waste of 2 cm and gemor bark distillation mashed in 16 mesh. The adhesive used were starch and PVAC. Composition variety of the mixture of rattan waste and gemor bark distillation particle were 50%: 50%, 60%: 40%, 70%: 30% and 5% adhesive. The results showed that highest average of modulus of rupture (26,62 kg/cm2) was obtained in 60% : 40% comparison of rattan waste and gemor bark distillation with starch adhesive (a2b1) and the density was 0.75 gr/cm3. The highest average of modulus of elasticity (633,76 kg/cm2) was in composition of 60%: 40% with PVAc adhesive (a2b2) and the density was 0,71 gr/cm3. The highest average of tensile strength (3,15 kg/cm2) was obtained in composition of 60%: 40% with starch adhesive (a2b1) and the density was  0.75 gr/cm3.Keywords: rattan waste, gemor bark distillation, particle board

SIFAT FISIK MEKANIK PAPAN PARTIKEL TANPA PEREKAT DARI TANDAN KOSONG KELAPA SAWIT (Elaeis Guineensis acq)

2014 ◽  
Vol 6 (1) ◽  
pp. 15 ◽  
Author(s):  
Budi Tri Cahyana
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Water Content ◽  
Oil Palm ◽  
Modulus Of Elasticity ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Particle Board ◽  
Thickness Swelling ◽  
Empty Fruit Bunches

This research aimed to get the physical and mechanical properties of non adhesive-particle board from oil palm empty fruit bunches. The oil palm empty fruit bunches were degradated to fibre and boiled in boiling water during 60 minute then dried in ± 2 weeks. The dried raw material was chopped to be fibre in 5 mesh, 10 mesh, and 16 mesh. It were complied into a mold and then hot pressed in 35 kgf/cm2 pressure during 10 minute with 3 of temperature variety, 160°C, 180°C and 200°C. The result showed that the average of particle board water content was 7,11 -  9,85 % and the density was 0,63 – 0,76 gr/cm3. The highest thickness swelling was 22,59 % in 10 mesh and 160 0C (a2b1) temperature of oil palm empty fruit bunches. The modulus of rupture was 211,67 kg/cm2  in 10 mesh and 180 0C (a2b2) temperature. The modulus of elasticity was 490,85 kg/cm2 in 10 mesh and 160 0C (a2b1) temperature. The tensile strength was 7,49 kg/cm2 in 5 mesh and 200 0C (a1b3) temperature. The average of physical and mechanical properties such as water content, density, modulus of rupture, tensile strength were fulfill the SNI requirement, while the average of thickness swelling and modulus of elasticity were not fulfill the SNI requirement.Keywords: oil palm empty fruit bunches, particle board

Physical and Mechanical Properties of Alnus Formosana Wood Introduced into Sichuan

2014 ◽  
Vol 574 ◽  
pp. 411-415
Author(s):  
Ming Chen ◽  
Jian Hua Lyu
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Impact Toughness ◽  
Modulus Of Elasticity ◽  
Basic Density ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Dry Density ◽  
Average Value ◽  
Mechanical And Physical Properties

The mechanical and physical properties of Alnus formosana wood from Sichuan, China were studied. Air-dry density, oven-dry density, basic density, shrinkage, swelling, parallel-to-grain compressive strength, parallel-to-grain tensile strength, modulus of rupture (MOR),modulus of elasticity (MOE) ,impact toughness were analyzed. Results from this study show that air-dry density, oven-dry density and basic density were respectively 0.52, 0.49 and 0.43g/cm3. The average value of volumetric shrinkage was 7.111% and the average value of volumetric swelling was 7.06%. The average values of modulus of elasticity (MOE) ,modulus of rupture (MOR), parallel-to-grain compressive strength, parallel-to-grain tensile strength and impact toughness were 8102.429 Mpa, 80.429 Mpa, 41.575Mpa, 81.542 Mpa and 47.406 Kj/m2 , respectively. This study solved a basic problem about the planting and utilization of Alnus formosana wood in Sichuan, China.

UJI MEKANIKA PAPAN PARTIKEL BERBAHAN DASAR KULIT SERABUT NIPAH (Nyfa fruticans Wurmb) DENGAN PEREKAT RESIN POLYESTER

2021 ◽  
Vol 4 (2) ◽  
pp. 308
Author(s):  
Muhammad Ega Saputra ◽  
Rosidah ◽  
Gusti Abdul Rahmat Thamrin
Keyword(s):  
Polyester Resin ◽  
Economic Value ◽  
Raw Material ◽  
Modulus Of Rupture ◽  
Medium Density ◽  
Particle Board ◽  
Palm Fiber ◽  
Average Value ◽  
Randomized Design ◽  
Completely Randomized Design

. In an effort to maximize the increase in economic value nipah plants, it is used to produce sugar, there also needs to be innovations that make nipah plants into high-value products, including the utilization of palm fiber for raw material for making particle boards. The objectives to be achieved in this research are Analyzing the mechanical properties of particle boards from palm oil with polyester resin adhesive. Particle board raw material used for palm fiber, The adhesive used is polyester resin by comparison A = 1:7, B = 1:8, C = 1:9. Static analysis of the data used is a completely randomized design (CRD) with three levels of treatment and three replications so the total number of trials is nine. The resulting density value includes medium density. Value of the resulting density in the treatment A (1:7), B (1:8), C (1:9) successively produce 0,78 gr/cm³, 0,69 gr/cm³, 0,62 gr/cm³. The average value of Modulus of Elasticity (MoE) The resulting effect is not real and does not meet SNI 03-2105-2006 min 20.400 kg/cm² except in the treatment A2, A3, B1, B3 that meets the standards SNI, Modulus of Rupture (MoR) The result has no real effect and the value produced meets SNI 03-2105-2006 for all treatments that require a minimum 82 kg/cm² in all treatments.Keywords: Particle Board; SNI 03-2105-2006; Polyester Resin; MoE; MoR

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