ANALYSIS OF PHYSICAL PROPERTIES OF GYPSUM PANELS FROM BANANA BOARD WASTE MATERIAL

Abstract. Research has been carried out which aims to determine the manufacture and physical properties of gypsum panels in the manufacture of gypsum panels for home interiors using banana midrib waste which is converted into fiber. Variations in the composition of mixing gypsum flour with banana midrib fiber include: Samples (A: 0%:100%) , (B: 2%:98%), (C: 4%:96%), (D: 6%:94 %), (E: 8%: 92%), and (F: 10%: 90%) with a FAS of 0.5. The physical test parameters include: Density, Water absorption, and Thickness expansion. From the test results obtained gypsum panels that are The best is in sample B which has a density value = 1.19 g/cm3, water absorption value = 24%, a thickness expansion value = 2.53%, which has complied with SNI 01-4449-2006 on the ceiling board. Key words: Gypsum panels, banana midrib, and gypsum flour.

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EKSTRAK KULIT BUAH NAGA MERAH (Hylocereus Polyrhizus) SEBAGAI ANTIOKSIDAN DALAM FORMULASI SEDIAAN LOTIO

Jurnal Ilmiah Manuntung ◽

10.51352/jim.v3i2.123 ◽

2018 ◽

Vol 3 (2) ◽

pp. 166

Author(s):

Yuska Novi Yanty ◽

Vetria Ade Siska

Keyword(s):

Physical Properties ◽

Vitamin B1 ◽

Skin Extract ◽

Test Results ◽

Physical Test ◽

Fruit Skin ◽

Dragon Fruit ◽

The Family ◽

Irritation Test ◽

Skin Quality

Dragon fruit is a kind of cactus tree from the family Cactaceae. Red dragon fruit contains lots of vitamin C, vitamin E, vitamin B1, B2, and B3. These vitamins can increase energy, and metabolize food, and even improve skin quality. This study aims to determine whether red dragon fruit skin extract can be made into lotion preparation and to know the effect of variation of red dragon fruit skin extract on physical properties of lotio. Red dragon fruit skin was extracted by maceration, lotio was made using formulation with variation of dragon fruit skin extract which were F1 (3%), F2 (5%), F3 (7%). The lotio was making by mixing the oil phase into the water. Physical test results showed there was organoleptic change in F1, F2 and F3 after observation for 4 weeks. The average result of pH test for four weeks was meet the lotio requirements ranging from 4.5-8. F1 with an average of 6.5, F2 with an average of 7.25, F3 with an average of 7.5. The result of viscosity test is F1 0,5 poise, F2, F3 and F4 0 poise. The result of F1 7.0 cm, F2 7,1 cm and F3 7.5 cm. The irritation test results are not irritating on the use of F1, F2 and F3. The test results showed that F0 and F1 are more favorable. The result of this research was that red skin dragon fruit extract can be made into lotio formulation and there was influence of variation of extract concentration on the physical properties of lotio.

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Mechanical and physical properties of teak leaves waste/polyurethane composites for particleboard application

Advanced Composites Letters ◽

10.1177/2633366x20962507 ◽

2020 ◽

Vol 29 ◽

pp. 2633366X2096250

Author(s):

Masturi ◽

WN Jannah ◽

RM Maulana ◽

T Darsono ◽

Sunarno ◽

...

Keyword(s):

Compressive Strength ◽

Physical Properties ◽

Water Absorption ◽

Raw Material ◽

Industrial Scale ◽

Test Results ◽

Polyurethane Composite ◽

Mechanical And Physical Properties ◽

Value Of Water ◽

Polyurethane Composites

A teak leaf waste/polyurethane composite has been made for particleboard application. Some fraction variations are performed on the use of polyurethane as a matrix with a range of 0.04–0.20 (w/w). Mechanical and physical properties have been tested on the composites produced. The test results showed that the highest compressive strength of the sample reaches 38.5 MPa for polyurethane fraction of 0.14 (w/w). The composite has a density of 1261 kg m−3 which is in accordance with the result of density on teak. The physical properties have been also investigated and it was found that the lowest value of water absorption is 1.38%. This result indicated that the composites produced are potentially to replace wood raw material in eco-friendly industrial scale.

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SIFAT FISIK DAN MEKANIK KOMPOSIT KAYU SEMEN-SERBUK GERGAJI

PERENNIAL ◽

10.24259/perennial.v2i1.153 ◽

2006 ◽

Vol 2 (1) ◽

pp. 38 ◽

Cited By ~ 1

Author(s):

. Bakri ◽

Endra Gunawan ◽

Djamal Sanusi

Keyword(s):

Mechanical Properties ◽

Physical Properties ◽

Water Absorption ◽

Key Words ◽

Water Content ◽

Physical And Mechanical Properties ◽

Wood Composite ◽

Thickness Swelling ◽

Iso Standards ◽

Saw Dust

This research aims to find out the effect of cement-saw dust ratio levels on the physical and mechanical properties of produced composites. The physical properties (density, water content, water absorption after the immersion of one hour and 24 hours, and thickness swelling after the immersion of one hour and 24 hours) and mechanical properties (MOE and MOR) were observed according to ISO standards. The results showed that the use of the cement to sawdust ratio of 3 : 1 in producing wood composite with the target density of 1200 kg/m3 resulted in the lowest water absorption and the highest MOE and MOR. The swelling value and MOR of the produced boards were not acceptable, but their water content, water absorption, and MOE parameters were acceptable according to ISO 8335 1997. Key Words : Physical and mechanical properties, cement wood composite, sawdust

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Effects of Lightweight Aggregate Size and Grading on the Residual Strength of Lightweight Geopolymer Concrete Exposed to Elevated Temperature

Materials Science Forum ◽

10.4028/www.scientific.net/msf.803.3 ◽

2014 ◽

Vol 803 ◽

pp. 3-10

Author(s):

Omar A. Abdulkareem ◽

Mohd Mustafa Al Bakri Abdullah ◽

Kamarudin Hussin ◽

Khairul Nizar Ismail

Keyword(s):

Compressive Strength ◽

Elevated Temperature ◽

Physical Properties ◽

Thermal Behavior ◽

Water Absorption ◽

Lightweight Aggregate ◽

Total Porosity ◽

Minimum Size ◽

Geopolymer Concrete ◽

Physical Test

The lightweight aggregate geopolymer concrete (LWAGC) systems were prepared using a lightweight aggregate (LWA) of different size and grading. The diversity in the LWA size and grading led to various physical properties like oven-dry (OD) density, water absorption and total porosity characteristics for the resultant LWAGCs. These physical properties were significantly affected and controlled thermal behavior of the concretes after exposure to elevated temperature of 800 °C. The results of the mechanical and physical test conducted to the unexposed LWAGCs showed that the OD-density and compressive strength increased as the LWA maximum and minimum size decreased. In contrast, the water absorption and total porosity of the unexposed LWAGC were increased with increasing of the LWA maximum and minimum size. Thus, the lowest OD-density LWAGC possessed the highest water absorption and total porosity which resulted in lowest compressive strength, whereas, it has the minimal strength loss after exposure to the elevated temperature. The water absorption and total porosity of the unexposed LWAGCs were indirectly implies the permeability characteristics of the concretes which is controllers the thermal behavior of the LWAGC at elevated temperatures.

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Sifat Fisis Dan Keunggulan Papan Semen Dari Limbah Kulit Batang Sagu

MAKILA ◽

10.30598/makila.v14i2.2895 ◽

2020 ◽

Vol 14 (2) ◽

pp. 87-98

Author(s):

Rohny S. Maail ◽

Irfan Derlauw

Keyword(s):

Physical Properties ◽

Water Absorption ◽

Water Content ◽

Stem Bark ◽

Test Results ◽

Tree Trunk ◽

Average Value ◽

Base Position ◽

Sago Bark ◽

Cement Board

This research aimed to determine the physical properties and advantages of cement boards made from sago stem bark waste based on the test results of several parameters according to JIS A 5908 (2003) standard. The results showed that the physical properties of cement board from sago stem bark waste with the addition of the CaCl2 catalyst were good, with the average value of density ranged from 1.19-1.26 gr/cm³, water content 7,67-8,02%, and water absorption after immersion 2 hours 6,03-7.65% as well as after 24-hour immersion 11,62-12,91%, respectively. The averages swelling value of board thickness was 1.62-12,91% after immersion 2 hours and 1.40-3.41% after immersion 24 hours. Furthermore, what sago bark waste in various positions of the tree trunk (tree base, middle and top) can be utilized to manufacture cement board. The board made from sago stem bark waste at the base position with a catalyst CaCl2 6% has the best physical properties and meets JIS A 5908 (2003) standard. Cement board from sago stem bark waste has an excellent waterproof capability and can be used as outdoor materials.

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Sifat Fisis Dan Keunggulan Papan Semen Dari Limbah Kulit Batang Sagu

MAKILA ◽

10.30598/makila.v13i2.2438 ◽

2019 ◽

Vol 13 (2) ◽

pp. 117-129

Author(s):

Rohny S. Maail ◽

Irfan Derlauw

Keyword(s):

Physical Properties ◽

Water Absorption ◽

Water Content ◽

Stem Bark ◽

Test Results ◽

Tree Trunk ◽

Board Density ◽

Average Value ◽

Sago Bark ◽

Cement Board

This research aimed to determine the physical properties and advantages of cement boards made from sago stem bark waste based on the test results of several parameters, according to JIS A 5908 (2003) standard. The results show that the physical properties of cement board from sago stem bark waste with the addition of the CaCl2 catalyst were good with the average value of cement board density ranged from 1.19-1.26 gr/cm³, water content 7,67-8,02%, water absorption after immersion 2 hours 6,03-7.65% and after 24-hour immersion 11,62-12,91%, respectively. The averages swelling value of board thickness after immersion 2 hours 1.62-12,91% and after immersion 24 hours 1.40-3.41%. Furthermore, sago bark waste in various positions of the tree trunk (tree base, middle, and top) can be utilized to manufacture the cement board. However, the board made from sago stem bark waste at the ground with the addition of a catalyst CaCl2 6% has the best physical properties and meets JIS A 5908 (2003) standard. Cement boards from sago stem bark waste have an excellent waterproof capability and can be used as outdoor materials.

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UJI AKTIVITAS ANTIJERAWAT DAN KARAKTERISTIK FISIK EMULGEL MINYAK ATSIRI DAUN JERUK PURUT (Citrus hystrix DC.) DENGAN BASIS GEL HPMC TERHADAP Propionibacterium acne

Pharma Xplore : Jurnal Ilmiah Farmasi ◽

10.36805/farmasi.v3i1.971 ◽

2018 ◽

Vol 3 (1) ◽

Author(s):

Anggun Hari Kusumawati

Keyword(s):

Growth Inhibition ◽

Physical Properties ◽

Key Words ◽

Ph Value ◽

Storage Period ◽

Diffusion Method ◽

Test Results ◽

Organoleptic Properties ◽

Propionibacterium Acne ◽

Agar Diffusion Method

Tests were conducted antiacne activity emulgel of essential kaffir lime leaves oils (Citrus hystrix DC.) against Propionibacterium acne. Antiacne activity assays performed by agar diffusion method at a concentration of 1%, 2%, 4%, and 8%. The results showed that of the kaffir lime leaves oil can inhibit the growth of P.acne. The greatest inhibitory regions shown the higher concentration of kaffir lime leaves oils, then the inhibitory of growth inhibition area P.acne increasingly widespread of 8% > 4% > 2% > 1%. Relationships increased concentration of essential lime leaves oils in the emulgel dosage effect on physical properties such as chemical emulgel pH, viscosity, and the power spread. From the test results it is known that the higher the concentration of oils in the preparation kaffir lime leaves emulgel the pH and viscosity of the lower F0> F1> F2> F3> F4, while increasing power spread F0 <F1 <F2 <F3 <F4. The storage period of emulgel preparation effect on the physical characteristics of the stocks as organoleptic properties, pH, and viscosity. The longer the period of storage of the organoleptic properties emulgel will change the pH value drops, and viscosity values also decreased significantly. Key words : P.acne, Kaffir lime leaves oil, Emulgel Telah dilakukan uji aktivitas antijerawat dari emulgel minyak atsiri daun jeruk purut (Citrus hystrix DC.) terhadap Propionibacterium acne. Pengujian aktivitas antijerawat dilakukan dengan metode difusi agar pada konsentrasi 1%, 2%, 4%, dan 8%. Hasil menunjukkan bahwa minyak atsiri daun jeruk purut dapat menghambat pertumbuhan P.acne. Dari hasil uji aktivitas antijerawat yang ditunjukkan dengan semakin tinggi konsentrasi minyak atsiri daun jeruk purut maka diameter daerah hambat pertumbuhan P.acne semakin luas 8%>4% >2%>1%. Hubungan peningkatan konsentrasi minyak atsiri daun jeruk purut dalam sediaan emulgel berpengaruh terhadap sifat fisika kimia emulgel seperti pH, viskositas, dan daya sebar. Dari hasil uji diketahui bahwa semakin tinggi konsentrasi minyak atsiri daun jeruk purut dalam sediaan emulgel maka pH dan viskositas semakin rendah F0>F1>F2>F3>F4, sedangkan daya sebar semakin meningkat F0<F1<F2<F3<F4. Masa penyimpanan sediaan emulgel berpengaruh terhadap karakteristik fisik sediaan seperti sifat organoleptis, nilai pH, dan viskositas. Semakin lama masa penyimpanan maka sifat organoleptis emulgel akan berubah, nilai pH semakin turun, dan nilai viskositas juga mengalami penurunan yang signifikan. Kata Kunci : P.acne, minyak atsiri daun jeruk purut, emulgel

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MECHANICAL AND PHYSICAL PROPERTIES OF THERMOPLASTIC CORN STARCH

Jurnal Teknologi ◽

10.11113/jurnalteknologi.v83.16576 ◽

2021 ◽

Vol 83 (5) ◽

pp. 119-127

Author(s):

Nazri Huzaimi Zakaria ◽

Ridhwan Jumaidin ◽

Mohd Adrinata Shaharuzaman ◽

Mohd Rody Mohamad Zin ◽

Fudhail Abdul Munir

Keyword(s):

Tensile Strength ◽

Moisture Content ◽

Physical Properties ◽

Water Absorption ◽

Corn Starch ◽

Absorption Test ◽

Physical Test ◽

Biodegradable Composite ◽

Mechanical And Physical Properties ◽

Water Absorption Test

The awareness to produce biodegradable composite has increased rapidly because of non-toxic and reachable. However, fully biodegradable composite production still low due to the matrix used in the composite is not biodegradable. Thus, this paper presents the study on mechanical and physical properties for the mixtures of corn starch (CS) with different weight percentages of glycerol as thermoplastics corn starch (TPCS) matrix. The selected glycerol contents were at 30, 35 and 40 wt%. The mixtures of CS and different weight percentages of glycerol were made using hot compression moulding at 165°C for 15 minutes to produce the TPCS samples. The mechanical and physical properties were done: the tensile test, hardness test, water absorption test, moisture content test and microstructure analysis under the Scanning Electron Microscopes (SEM). Incorporating 30 wt% loadings of glycerol has increased the tensile strength and hardness. The results show that the addition of higher than 30 wt% loadings of glycerol has decreased the tensile strength and hardness of the TPCS. The physical test results for 30 wt% loadings of glycerol for water absorption test and moisture content show the lowest value than other TPCS samples. However, the density value for all wt% loadings of glycerol does not offer much difference. It reveals that 30 wt% loadings of glycerol in the mixture of CS have shown a good interaction in the TPCS mechanical properties. Based on this finding, the TPCS has huge potential to be used as a matrix to develop a fully biodegradable composite.

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PEMANFAATAN KAYU AKASIA MANGIUM (Acacia mangium Willd) UNTUK MEBEL

Jurnal Riset Industri Hasil Hutan ◽

10.24111/jrihh.v4i1.1195 ◽

2012 ◽

Vol 4 (1) ◽

pp. 1

Author(s):

Djoko Purwanto

Keyword(s):

Mechanical Properties ◽

Compressive Strength ◽

Physical Properties ◽

Treatment Process ◽

Acacia Mangium ◽

Physical And Mechanical Properties ◽

Wood Fibers ◽

Test Parameters ◽

Mechanical And Physical Properties ◽

Scale Scores

Timber Acacia mangium (Acacia mangium, Willd) for Furniture. The study aims to determine the mechanical and physical properties and the decorative value (color and fiber) wood of acacia mangium with using finishing materials. This type of finishing material used is ultran lasur natural dof ,ultran lasur classic teak, aqua politur clear dof, aqua politur akasia dan aqua politur cherry. After finishing the wood is stored for 3 months. Test parameters were observed, namely, physical and mechanical properties of wood, adhesion of finishing materials, color and appearance of the fiber, and timber dimensions expansion. The results showed that the mechanical physical properties of acacia wood qualified SNI. 01-0608-89 about the physical and mechanical properties of wood for furniture, air dry the moisture content from 13.78 to 14.89%, flexural strength from 509.25 to 680.50 kg/cm2, and compressive strength parallel to fiber 342.1 - 412.9 kg/cm2. Finishing the treatment process using five types of finishing materials can increase the decorative value (color and fiber) wood. Before finishing the process of acacia mangium wood has the appearance of colors and fibers and less attractive (scale scores 2-3), after finishing acacia wood fibers have the appearance of colors and interesting and very interesting (scale 4-5).Keywords: mangium wood, mechanical properties, decorative value, finishing, furniture.

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DAYA TAHAN ROTAN YANG DIAWETKAN DENGAN CUKA KAYU GALAM TERHADAP SERANGAN BUBUK Dinoderus minutus Farb.

Jurnal Riset Industri Hasil Hutan ◽

10.24111/jrihh.v2i2.1141 ◽

2010 ◽

Vol 2 (2) ◽

pp. 8

Author(s):

Evy Setiawati

Keyword(s):

Force Feedback ◽

Test Results ◽

Dry Powder ◽

Degree Of Protection ◽

Wood Vinegar ◽

Dinoderus Minutus ◽

Test Parameters ◽

Feedback Method ◽

Reduction Percentage ◽

Insect Attack

Rattan on frequently attacked by the powder post beetle (Tellu, 2001). The prevention of dry powder attacks is done by preservation. The increasing resistant of rattan from insect attack can be done by an environmentally friendly preservative, the Galam wood vinegar. This research aims to determine the most effective concentration of preservative that shows the lowest attacks level of D. Farb minutus powder. The rattan used is green rattan (Calamus sp.) The concentration of preservative that are used:10%, 40%, 70% and 100%. The testing of dry powder attack used force feedback method. The effectiveness test parameters of wood vinegar to dry powder attacks included degree of protection Dinoderus minutus Farb. powder, reduction percentage of rattan weight and the mortality of dry powder Dinoderus sp for toxicological testing of wood vinegar. The test results showed that the degree of protection powder in rattan growing along with the increased concentration of preservatives. The higher the concentration of wood vinegar, the smaller the reduction of rattan weight and the higher the mortality rate of dry powder. Keywords: resistant of rattan, wood vinegar, Dinoderus minutus.

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