จำนวน Repository ( 123 )

การทดสอบประสิทธิภาพระบบการพิมพ์พื้นนูนและการพิมพ์พื้นฉลุบนวัสดุจากเยื่อธรรมชาติเพื่อพัฒนาเป็นบรรจุภัณฑ์ที่เพิ่มมูลค่าและการใช้งานในเชิงพาณิชย์
การทดสอบประสิทธิภาพระบบการพิมพ์พื้นนูนและการพิมพ์พื้นฉลุบนวัสดุจากเยื่อธรรมชาติเพื่อพัฒนาเป็นบรรจุภัณฑ์ที่เพิ่มมูลค่าและการใช้งานในเชิงพาณิชย์

This research is to study and develop natural pulp materials for packaging. This is the agricultural waste. To benefit commercially To build capacity and capability in economic development and environmental conservation Is the creation of packaging work Formed in sheets and shapes using natural materials such as mulberry paper pineapple paper. And banana paper Then design and create the packaging. To test the properties. According to the standard packaging. They also sought satisfaction in the form and use of natural pulp materials. Include the packaging according to the case study. Research indicates that When developing pulp quality The banana paper can not be printed. Can print lines. But screen printing is not suitable for banana paper. Foil printing case when mulberry paper and pineapple paper Foil printing Printing lines Can be done well on mulberry paper and pineapple paper. Death images can be printed on all three types of paper but the screen is not good. Sealing material from natural pulp onto corrugated paper. From the test it was found that the amount of adhesive that was suitable for sealing was between 20-30 mg. If the adhesive was less than 20 milligrams only mulberry paper was sealed. The amount of glue at 50 milligrams is the amount of glue is too high causing all three types of paper to rot. Because of the adsorption of glue to the pulp. Packaging material from natural pulp. Fold of banana paper that does not pass the test. The banana paper is high in strength. When folding the packaging causes the pulp to split along the crease. Can not be molded. Evaluation of the satisfaction with the form and use of packaging materials from natural pulp. It was found that the average value of paper pulp suitable for packaging materials from natural pulp was the most agreeable paper. Secondly paper shreds are very popular and the last one is banana paper. Moderate agreement

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การศึกษาและพัฒนาวัสดุปลูกพืชน้ำหนักเบาจากต้นกล้วยเพื่อใช้กับสวนแนวตั้ง
การศึกษาและพัฒนาวัสดุปลูกพืชน้ำหนักเบาจากต้นกล้วยเพื่อใช้กับสวนแนวตั้ง

The study and Development Lightweight growing media by banana tree to use a Vertical garden.To create thermal comfort for building users are the main factors causing the air conditioning. The cause of the electrical consumption. Thus bringing the tree into the building. In the past the building that used tree. Create a homey Subsequently it has adopted a large tree used for the purpose of lowering the temperature of the surrounding buildings. Developed into a roof garden Reduce heat to pass through the roof. And is currently being applied in the manner of a green wall. This helps reduce the heat that enters the building through the building envelope as well. The behavior of the tree to absorb water from the roots to the leaves and then passed to photosynthesis. Such a process makes the water evaporates and the air has been cooled by the surrounding trees The Heat pulled away for the evaporation of water. Such a process which happens from time to time no matter how much humidity in the air. The cool environment is another factor that manipulates the ambient environment to environment and buildings The benefits of trees in the green areas of the city this is helping to reduce and prevent the phenomenon of urban heat island The study and Development Lightweight growing media by banana tree to use a Vertical To reduce the weight of structural data were collected to design the plant material. Then the data from design professionals and vertical landscaping questionnaire. And interviews to analyze the result. And amends To test plant material vegetation series of 12 trials by planting vegetation. On the wall a series of three experiments wall. (Width 1.20 m. Height 3.00 m.) Of the test data and the growth of vegetation. Found that plants grow well on a series of plant material. The unit is lightweight and planting is not burdened with the weight of the building structure.

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การศึกษาวัสดุธรรมชาติ เพื่อการออกแบบผลิตภัณฑ์สำหรับปลูกต้นไม้
การศึกษาวัสดุธรรมชาติ เพื่อการออกแบบผลิตภัณฑ์สำหรับปลูกต้นไม้

The Study Natural Materials to Product Design for Tree Planting. Studying natural materials To design a product for a tree Study on utilization of natural materials. Study and development of natural materials and ratios of various materials suitable for planting products. And compare the properties of natural materials. Made to plant products. To achieve the objectives of the research. Researchers conducted various researches. And present the results of data analysis. The best ratio is natural material: cement: 1: 1.5: 2 water: 695 kg / m 3 Water absorption test of various materials mixed with all three types of materials. Water absorption of soil and glue mixture is best absorbed. The absorption was 88%. Experiment on the swelling of natural materials mixed with all three types of materials. The test results showed that the swelling rate of cement mixed materials. The smallest swelling was 0.332 millimeters (0.08 millimeters). The questionnaire was used to collect data from 150 questionnaires. Statistical analysis is used to determine frequency. Of the 150 respondents about 94.7% of the rubber tree structure was found. 65.3% of the products obtained from the rubber leaves were 49.3%. There were 5 - 10 types of rubber leaves. The 80 respondents commented that most of the products of the rubber leaves were flowers (53.3%). The answer was 132 respondents representing 88%. On the durability of natural products 49.3% said that the products of natural materials are durable medium. There were 10 - 50 species of natural materials 52.7% of them had opinions about 51% of natural plant products. 59% had good quality 53% were good in natural materials 53% satisfied with the color of natural plant products 60% satisfied with the products. At the same time 47% of the products were planted in natural materials 47% of which were of good quality. 98% of tree planting products. The research found that people are interested in products for planting trees from natural materials. It is a combination of natural materials to create a new material with unique patterns. It can also be developed into more products.

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คุณสมบัติเชิงกลของคอนกรีตมวลเบาผสมวัสดุปอซโซลาน
คุณสมบัติเชิงกลของคอนกรีตมวลเบาผสมวัสดุปอซโซลาน

This research study the effect of pozzolanic materials on light weight concrete by replacement cement with fly ash and Meta kaolin which affect the properties of concrete by using pumics aggregate. Coarse in aerated concrete and consider mechanical properties. Aerated concrete replacement cement by fly ash 20% 35% and 50% respectively and meta-kaolin is replaced. From the results it was found that the compressive strength of light weight concrete at 28 days w/b = 0.55 was higher than that of every 14 days of cement and cement cement replacement by fly ash 50% highest value compressive strength. More than all the ingredients replaced with fly ash and Meta kaolin. When considering the flexural strength of replacement cement with 10% by Meta kaolin the maximum flexural strength of 80 ksc was higher than that of control concrete and all other ingradient. Experimental tensile strength at 28 days result found that replacement cement by fly ash at 35% gave the highest tensile strength of 28 ksc and gave higher tensile strength than all other ingradient. From the impact strength test at age 28 days it was found that the replacement cement 35% by fly ash gave the highest impact strength of 92.00 joule than the 20% and 50% respectively and higher impact strength than that of all kaolin. Except for control concrete.

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การขึ้นรูปวัสดุสังเคราะห์เส้นใยธรรมชาติภายใต้สภาวะความดันและอุณหภูมิสูงเพื่อผลิตชิ้นส่วนยานยนต์
การขึ้นรูปวัสดุสังเคราะห์เส้นใยธรรมชาติภายใต้สภาวะความดันและอุณหภูมิสูงเพื่อผลิตชิ้นส่วนยานยนต์

Currently the automotive industry plays an important role on the economic growth in Thailand. As the same time the waste of automotive parts has increased as well. As a results the automotive parts made from three different natural fiber parts was studied consisting of hyacinths sugarcane and pineapple leaf fiber. By of 50 x 250 x 20 mm of mold dimension the specimens were produced under 700 W of heating stick and measured temperature by a K type of thermometer. There were 3 same proportion specimens made from: 1) sugar cane fiber: husk: latex adhesive 2) water hyacinth fiber: husk: latex adhesive 3) pineapple fiber: husk: latex adhesive in the ratio of 25:25:50 by weight which were formed under temperature between 100GC and 105°C at 5 MPa of pressure and leading to find out the bending moment ability. The test results show that the specimen made from sugar cane fiber has the highest value 5482.5 Nand 4061.11 N/mm2 of bending moment and bending stress respectively. It was more than specimen made of water hyacinth 29.84 % and pineapple fiber 65.01 %.

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