จำนวน Repository ( 42 )

การศึกษาคุณสมบัติของวัสดุทดแทนไม้จากเส้นใยกาบมะพร้าว
การศึกษาคุณสมบัติของวัสดุทดแทนไม้จากเส้นใยกาบมะพร้าว

Utilizing coconut coir fiber can offer an alternative method of adding value to agricultural wastes and help to conserve the environment. The aim of this research was to investigate the potential use of coconut coir fiber as cement composite as an environmentally material. The properties of cement composites mixed with different proportions of paper wastes were compared with ordinary white Portland cement. In addition the surface structure and chemical characteristics of samples were examined by a scanning electron microscope (SEM) and energy dispersive x-ray spectrometer (EDS). The results show that the main elements - C O Ca Al Si and K respectively were found in cement composites. The compressive and flexural strength of the cement composite decreased with an increase in the coconut coir fiber volume fraction.

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Coconut sugar buying behavior of mahachai market customers
Coconut sugar buying behavior of mahachai market customers

The purposes of this research were 1) to study the personal factors of Mahachai Market customers 2) to study coconut sugar buying behavior of Mahachai Market customers 3) to study the factors of marketing mix associated with coconut sugar buying behavior of Mahachai Market customers 4) to study the relationship between personal factors and coconut sugar buying behavior of Mahachai Market customers 5) to study the relationship between marketing mix and coconut sugar buying behavior of Mahachai Market customers The population was 200 coconut sugar buyers in Mahachai Market. The research instrument and to collect data was questionnaire. The statistics used to analyze the data were frequency percentage mean standard deviation and Pearson chi-square. The data were analyzed by SPSS. The research found that 1) the most Mahachai Market customers were female age range in 35 - 45 years monthly income was in a range of 25001 – 35000 Baths and lived in the central region. 2) coconut sugar buying behavior of Mahachai Market customers found that reason to buy was for family consumption the an average quantity bought was 1-5 kgs cost of buying was 101 - 300 Bahts the frequency of buying is one time per month coconut sugar was bought in small cups and one who influenced decision was oneself. 3) marketing mix associated with coconut sugar buying behavior of Mahachai Market customers found consumers has high level satisfaction and when considered each aspect the highest level satisfaction was price and product high level satisfaction was place and the moderate level satisfaction was promotion. 4) relationship between personal factors and coconut sugar buying Behavior of Mahachai Market customers were positive in gender age income and place of living at statistically significance of .05 level and 5) relationship between marketing mix and coconut sugar buying Behavior of Mahachai Market customers were positive in place and promotion at statistically significance of .05 level.

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การใช้ยางธรรมชาติผสมขุยมะพร้าวสำหรับขึ้นรูปแผ่นผนังป้องกันเสียงและความร้อนภายในอาคาร
การใช้ยางธรรมชาติผสมขุยมะพร้าวสำหรับขึ้นรูปแผ่นผนังป้องกันเสียงและความร้อนภายในอาคาร

This research aims to develop the coconut coir and fiber indoor acoustic and thermal insulation boards mixed with natural latex. The 5 ratios of coconut coir: coconut fiber: natural rubber were equal to 0.1: 0.9: 0.1 0.1: 0.9: 0.15 0.1: 0.9: 0.2 0.1: 0.9: 0.25 and 0.1: 0.9: 0.3 by weight. The indoor acoustic and thermal insulation boards were produced by knitting the coconut coir and fiber spraying the natural latex and heat compressing. The properties testing of indoor acoustic and thermal insulation boards included the density test water absorption test tensile strength test thermal conductivity test sound protection efficiency test and real usage test. From the results 0.1: 0.9: 0.15 ratio is the most suitable ratio of coconut coir and fiber indoor acoustic and thermal insulation board mixed with natural latex. The natural latex which putted in these indoor acoustic and thermal insulation boards can reduce the water absorption and increase tensile strength and sound protection efficiency.

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ผลิตภัณฑ์แผ่นฝ้าเพดานผสมขุยมะพร้าวที่มีสมบัติต้านทานการดูดซึมน้ำและเป็นฉนวนป้องกันความร้อนสำหรับชุมชนท้องถิ่น
ผลิตภัณฑ์แผ่นฝ้าเพดานผสมขุยมะพร้าวที่มีสมบัติต้านทานการดูดซึมน้ำและเป็นฉนวนป้องกันความร้อนสำหรับชุมชนท้องถิ่น

This research aims to develop the coconut coir ceiling board mixed with natural latex. The 6 ratios of gypsum plaster: coconut coir: sodium silicate: natural rubber: tap water are equal to 1: 0.15: 0.03: 0.00: 1 1: 0.15: 0.03: 0.01: 1 1: 0.15: 0.03: 0.02: 1 1: 0.15: 0.03: 0.03: 1 1: 0.15: 0.03: 0.04: 1 and 1: 0.15: 0.03: 0.05: 1 by weight. The ceiling boards were produced by casting in normal temperature (30 – 35 degree of Celsius). The properties testing of coconut coir ceiling board mixed with natural latex followed the TIS 219-2009 standard (gypsum plasterboard) including: breaking load nail pull resistance deflection water absorption density thermal conductivity coefficient and real usage. From the results 1: 0.15: 0.03: 0.03: 1 ratio is the most suitable ratio of coconut coir ceiling board mixed with natural latex. This developed ceiling boards can reduce the quantity of coconut coir waste and get the good thermal insulation ceiling board products.

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การพัฒนาผลิตภัณฑ์แผ่นผนังคอนกรีตน้ำหนักเบาผสมทางมะพร้าวเหลือทิ้งสำหรับวิสาหกิจชุมชนขนาดเล็ก
การพัฒนาผลิตภัณฑ์แผ่นผนังคอนกรีตน้ำหนักเบาผสมทางมะพร้าวเหลือทิ้งสำหรับวิสาหกิจชุมชนขนาดเล็ก

The objectives of this research are to study the product development of light weight concrete wall board mixed with coconut leaf waste for small community enterprise to find the suitable coconut leaf waste mixed ratio with cement river sand coconut leaf waste water and catalyst accelerator at 1:0.4:0.13:0.33:0.03 ratio. CC13 (1:0.13) at 28 days has density 2266 kg/m3 bending resistance 3.05 MPa heat conduction efficiency 0.236 W/m-K. The coconut leaf waste can absorb water inside and the cement board can attach to the concrete wall easily. Suitability to make the big concrete wall.

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