จำนวน Repository ( 7 )

การพัฒนาแผ่นใยไม้อัดซีเมนต์ที่มีความแข็งแรงและเป็นฉนวนป้องกันความร้อนสูง จากเส้นใยกากมะพร้าวและต้นข้าวโพด
การพัฒนาแผ่นใยไม้อัดซีเมนต์ที่มีความแข็งแรงและเป็นฉนวนป้องกันความร้อนสูง จากเส้นใยกากมะพร้าวและต้นข้าวโพด

This research is aimed at studying the development of strong and high strength fiberboard from coconut fiber and corn plant. This is the second consecutive year by using natural latex. To enhance thermal insulation performance. By using the cement ratio: fine sand: coconut pulp: corn fiber: water: surfactant: surfactant is 1: 0.2: 0.0125: 0.0375: 0.3: 0.03: 0.04 by weight Then add natural rubber latex at cement ratio: 5: 1 ratio of natural rubber latex: 1: 0.05 1: 0.10 1: 0.15 1: 0.20 and 1: 0.25 by weight tested in accordance with TIS 878- 2537 on cement slabs. : High density the test results show that the ratio of 1: 0.05 is the fiber cement ratio. The most appropriate the amount of natural latex said. Can make fiber Cement sheets. Best compression and bending strength. And has passed the standard TIS 878-2537 cement fiberboard developed this can help reduce the amount of natural latex is very high. And have a good thermal insulation properties

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การพัฒนาแผ่นใยไม้อัดซีเมนต์จากาการประยุกต์ใช้เส้นใยธรรมชาติจากกากมะพร้าวและต้นข้าวโพด
การพัฒนาแผ่นใยไม้อัดซีเมนต์จากาการประยุกต์ใช้เส้นใยธรรมชาติจากกากมะพร้าวและต้นข้าวโพด

This research aims to study the application of coconut meal and corncob fiber as high density cement-bonded fiberboard. The cement: fine sand: coconut meal and corncob fiber: water: cement setting accelerator (aluminium sulphate (Al2(SO4)3) calcium chloride (CaCl2) sodium silicate (Na2SiO3)) ratio is equal to 1: 0.2: 0.05: 0.3: 0.03 by weight. The fibers are taken from coconut meal: corncob that 5 ratios are used following: 0.0500: 0 (CN0) 0.0375: 0.0125 (CN25) 0.0250: 0.0250 (CN50) 0.0125: 0.0375 (CN75) and 0: 0.0500 (CN100) by weight. 12% of Sodium Hydroxide (NaOH) was used to modify the fibers by using 1: 10 of fiber: solution and boiling 100 degree of Celsius (1-3 hours). The fiberboard production use pressure casting in normal temperature (30 – 35 degree of Celsius) and 0.75 g/cm3 of density. Resulting the CN75 ratio is suitable ratio which pass TIS 878-2537 standard (cement bonded particle board: high density) and has good physical properties mechanical properties and thermal insulation. The most suitable cement setting accelerator is calcium chloride (CaCl2).

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The application of coconut meal, corncob and durian peel as  wood-substituted biocomposites in medium density fiberboard
The application of coconut meal, corncob and durian peel as wood-substituted biocomposites in medium density fiberboard

This research aims to study the application of coconut meal corncob and durian peel as wood-substituted biocomposites in medium density fiberboard. The fiber: urea formaldehyde glue: isocyanate glue with polymeric diphenymethane diisocyanate type (pMDI) ratio is equal to 1: 0.13: 0.003. The fibers are taken from coconut meal corncob and durian peel that 7 ratios are used to all of fiber mixing. The fiberboard production use 130?C of temperature with 20 – 50 kg/sq.cm of compressive pressure with 8 minutes per piece of rate. Their fiberboards have 603 – 856 kg/m of density that was tested follow the TIS 876-2547 standard. Resulting the MM33 ratio (coconut meal fibers: corncob fibers: durian peel fibers is equal to 0.33: 0.33: 0.33) and the CC50 ratio (coconut meal fibers: corncob fibers: durian peel fibers is equal to 0.50: 0.25: 0.25) can pass the standard in physical properties and mechanical properties. Moreover their fiberboards have good thermal insulation

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The application of kaolin with coconut meal, plywood from corncobs and durian peel in concrete masonry unit wall  for  increasing effective heat  protection and lightweight
The application of kaolin with coconut meal, plywood from corncobs and durian peel in concrete masonry unit wall for increasing effective heat protection and lightweight

This research aims to study the application of kaolin with coconut fiber corncobs fiber and durian peel in concrete masonry unit wall for increasing effective heat protection and lightweight. The ratio of cement type 1: kaolin is equal to 1: 60 by weight. The kaolin is replaced by fiber include coconut fiber corncob fiber durian peel fiber with 1.67% 3.33% and 5% by weight of kaolin. The kaolin concrete block mixed with fiber sample size is formed to 6.9 x 39 x 19 centimeter with the hydraulic compactor. The samples tested in physical and mechanical properties follow the TIS 58-2533 standard. Resulting their fibers can reduce the density thermal conductivity and compressive strength and increase the changing length and water absorption of kaolin concrete blocks. The kaolin concrete block without fiber has highest compressive strength followed by the kaolin concrete block mixed with corn cob fiber the kaolin concrete block mixed with coconut meal fiber and the kaolin concrete block mixed with durian peel fiber has lowest compressive strength respectively. However their fibers have possibility to be composite materials to reduce weight of kaolin concrete blocks

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การพัฒนาแผ่นใยไม้อัดซีเมนต์จากการประยุกต์ใช้เส้นใยธรรมชาติจากกากมะพร้าวและต้นข้าวโพด
การพัฒนาแผ่นใยไม้อัดซีเมนต์จากการประยุกต์ใช้เส้นใยธรรมชาติจากกากมะพร้าวและต้นข้าวโพด

This research aims to study the application of coconut meal and corncob fiber as high density cement-bonded fiberboard. The cement: fine sand: coconut meal and corncob fiber: water ratio is equal to 1: 0.2: 0.05: 0.3. The fibers are taken from coconut meal and corncob that 5 ratios are used to all of fiber mixing. The fiberboard production use casting in normal temperature. Resulting the CN75 ratio (coconut meal and corncob fiber is equal to 0.0125: 0.0375) is suitable ratio which pass TIS 878- 2537 standard (cement bonded particle board) and has good physicalproperties mechanical properties and thermal insulation.

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