จำนวน Repository ( 96 )
การออกแบบลวดลายด้วยเทคนิคการพิมพ์ซิลค์สกรีนบนผ้าฝ้ายผสมใยกล้วย สำหรับชุดทำงานสตรี
The objectives of this research are 1) to design pattern by technique of silkscreen on the banana fibers integrated cotton cloth for women’s working dress 2) to design women’s work dress from cotton blended with banana fibers by technique of silkscreen for female workers and 3) to study the satisfaction of female workers for working dress which sewing from the cotton blend with banana fibers for female work uniform by technique of silkscreen. The samples of the study were 399 working females with ages between 21-60 years old in Bangkoks Sathon and Bang Rak district. The research instrument was the questionnaire and 12 prototypes of cotton blend with banana fibers for female work uniform by the technique of silkscreen consist of dress coat and skirt. The questionnaires were randomly distributed. The data was analyzed using statistical percentage mean and standard deviation. The findings indicated that the majority of participants were 21-30 years old with married marital status educated with Bachelor degree working in the position of employees and have the average monthly income of 15000-20000 THB. Most of the participants have never purchased or wore the dresses or attires made from cotton blend with banana fibers. The decisive reasons for purchasing the working uniforms were personal preferences the frequency of purchases was on the monthly basis and the prices of purchased working uniforms were between 500-1000 bath each. The analysis of the satisfaction of participants toward the working females suggested the triangle pattern dresses is at the highest satisfaction rate followed by the circle mixed and square pattern with the means of 4.47 4.42 4.26 and 4.07 respectively. The circle pattern coats is at the highest satisfaction followed by mixed triangle and square pattern with means of 4.314.22 4.21 and 3.87 respectively. The circle pattern skirt is at the highest satisfaction rate followed by the mixed triangle and square pattern with means of 4.18 4.04 4.00 and 3.82 respectively. It was found that every pattern received the high degree of satisfaction.
การพัฒนาและผลิตอิฐบล็อกมวลเบาโดยการผสมเส้นใยธรรมชาติ
In this study we investigated on the mechanical properties and physical properties of light weight block mixed with banana fibers. For the cost effective purpose and environmental friendly product banana fibers which is rich in fiber was used as a precursor in producing light weight block. In this framework a series of blocks were fabricated using banana fibers for instead different raw material involve cement and sand for 28 days incubation. The result show that the block with mix banana fiber was replaced cement in 2.5 %wt has the density value and compressive strength is 1376 kg/m3 and 62.25 kg/cm3 respectively. While water absorption and the maximum shrinkage limit value are 32.86 % and 0.12 % respectively were obtain from the samples mixing 7.5% of banana fibers. After examination of of Thai Industrial Standard (TIS 1505- 2541) the result illustrated the value are standard. It can be concluded that the light weight block mixed banana fibers in ratio of sand: cement: lime: gypsum: aluminum powder: banana fibers are 50: 27.5 : 9 : 9 : 2 : 2.5 will also be used as an alternative precursor materials for producing the light weight block by natural raw materials for cost effective purpose.
การออกแบบและพัฒนาผลิตภัณฑ์จากผ้าใยกล้วยด้วยการพิมพ์แบบกราฟิกและตกแต่งนวัตกรรมนาโนสู่การพัฒนาเศรษฐกิจชุมชนเชิงพาณิชย์
This research is Design and development of banana fiber textiles with graphic printing and decoration Nano innovation to the Economic Communities Commercial The purpose of this research were 1) study the fundamental properties of banana fiber textiles with graphic printing and decoration Nano innovation on products 2) to design and develop products of banana fiber textiles with graphic printing and decoration Nano innovation 3) to produce the women handbags prototypes products of banana fabric with graphic printing and decoration Nano innovation to the Economic Communities Commercial. 4) to assess the opinion of the women handbags products of banana fabric by Questionnaire of user’s 5) to transfers knowledge of product design from banana fabric by printing graphics and decoration nanotechnology innovations. Economic development to commercialization. To be useful in the design and development of the product forward. Research tools are 1) the three graphic design drafts and create five women handbags prototypes product 2) Questionnaire of user’s opinion : an assessment of the design and the satisfaction of users of 25 people to inquiries random coincidence. Using the percentage and averages 3) implementation of knowledge transfer to the community of interest 17 – 18 September 2016 at the Chedi district office in Suphanburi province total 25 people including community enterprise Various womens groups And others interested in the surrounding area 4) Questionnaire of consumers satisfaction : the assessment of satisfaction of participants to design and develop products from banana fibers by printing graphics and decoration nanotechnology innovations. Data were analyzed using the statistical average of the results as table and descriptive. The results were as follows: 1) Innovative nano-fiber cloth decorated banana fabric can be antibacterial at 99.95% and staphylococcus bacteria klebsiella pneumonia at 99.93% and water reflection / water level of 80 percent water which can be absorbed into the cloth and wet it a bit. 2) The mostly respondents were female aged 21-25 years students earn less than 15000 baht in the inquiry satisfaction of consumers on the use of products from cotton banana fiber with printing. graphic and decorative nanotechnology innovation. All have beensatisfied at maximum average and highest level of satisfaction that with an average 4.91 percent to 98.24 satisfaction is at the highest level. 3) Execution Technology The workshop schedule for the two-day workshop on 17 - 18 September 2559 at the Chedi district office in Suphanburi province 25 people including community enterprise. Various womens groups and interested parties within the surrounding area. Most of the participants were satisfied with the level in most every question.
การปรับปรุงความเหนียวและความทนแรงกระแทกของพอลิแลกติกแอซิดโดยการใช้น้ำมันถั่วเหลืองที่ผ่านการดัดแปรและเส้นใยธรรมชาติ
This research work was to study the improvement of toughness and impact resistance of polylactic acid (PLA) with modified soybean oil (MSBO) and palm fiber (PF). The detail of this work was divided into three parts. The first was to find the suitable condition for modification of soybean oil with ozonolysis. The second and last parts were to study the effects of MSBO and PF contents on the properties of PLA respectively. For oil modification the reaction times were varied from 0 to 3 hours and the chemical changes in molecules of soybean oil were investigated by Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies. The result suggested that the most suitable condition for ozonolysis reaction was 2 hours considering the decrease in double bond between carbon atoms and the increase in hydroxyl group into molecular structure of MSBO. For the effect of MSBO content on mechanical properties it was evaluated by tensile and impact testing. Differential scanning calorimeter (DSC) and scanning electron microscope (SEM) were used for thermal and morphology analyses. The result showed that elongation at break and impact strength of modified PLA by MSBO increased about 89 and 25 % compared to those of neat PLA respectively. MSBO act as the efficient plasticizer for PLA considering the conversion of fracture behavior from brittle to ductile good dispersions of MSBO droplets in PLA and the decrease of glass transition temperature (Tg) with addition of MSBO. The addition of PF improved the impact strength of modified PLA. Strong interfacial bonding between PLA and PF indicated MSBO being both coupling agent for PLA and natural fiber and plasticizer for PLA. For migration test it was found that contents of released heavy metal and migrated chemical from specimens of PLA and PLA/PF composite were under the criteria according to Notification of the Ministry of Public Health (No. 295) B.E. 2548.
การผลิตวัสดุดูดซับเสียงจากวัสดุผสม ยางโฟมธรรมชาติและเส้นใยธรรมชาติ
This research work was to study the effect of surface treatment of natural fiber and the effects of type and content of natural fiber on the development of acoustic material from natural rubber foam /natural fiber composites. The surface treatment used for this research work was sodium hydroxide (NaOH) treatment. NaOH Concentrations and treatment times were varied from 0 to 15 %wt. and 0 to 30 min respectively. Natural fibers used for this work were bagasse fiber (BF) and oil palm fiber (OPF). The suitable condition for surface treatment was estimated by fiber length and diameter (L/D) ratio and morphology of natural fiber. The result suggested that L/D ratios tended to increase when NaOH concentrations and/or treatment times increased except for NaOH concentration of 15 %wt. L/D ratios of OPF after surface treatment were changed more than those of BF. The suitable conditions of NaOH treatment for BF and OPF were NaOH concentration of 10 %wt. and surface treatment times of 30 and 10 min respectively. The effects of fiber type and content on sound absorption properties of natural rubber foam /natural fiber composites were investigated by cell characteristics sound absorption coefficient DMA analysis and bulk density. Both treated BF and OPF with suitable treatment condition were varied from content of 0.0 to 10.0 %wt. The result showed that the cell size of composites tended to decrease with addition of natural fiber whereas number of foam cell per unit volume increased. After adding natural fiber more than 2.5 %wt. cell size of composite foam and number of foam cell per unit volume tended to change the inverse direction. Natural fiber in composites enhanced the sound absorption efficiency. Sound absorption coefficient of composites adding BF was more than that of composite adding OPF. The addition of natural fiber enhanced the elasticity of composites and that increased sound absorption efficiency. NaOH treatment led to creation of strong interfacial bonding between natural fiber and natural rubber and enhanced the sound absorption efficiency. Density of NR composite foam increased with increasing natural fiber content.