จำนวน Repository ( 23 )
ผลิตภัณฑ์ซองเส้นใยเปลือกข้าวโพดเคลือบสารสกัดน้ำมันผิวมะกรูด ทดแทนซองพลาสติกเพื่อบรรจุซิลิกาสำหรับดูดความชื้น
In order to maintain food and materials including drying products at the original dried condition silica gel can be one choice for absorbing moisture. Most silica gel is packed in an Parcel made from plastic which is difficult to naturally degrade thus causing environmental problems. This research therefore have developed packaging material from agricultural waste corn husks for absorbing moisture from food rice. From the study it was found that the corn husk paper had characteristic of smooth paper surface. When making it into a corn fiber Parcel its maximum moisture absorption from saturated humidity was 9.22±0.92% and it could absorb the moisture from the rice stored at room temperature when compared to the plastic sachet at 8.26±0.50% and 9.30±0.08% respectively. When coated with kaffir lime oil extract the corn husk Parcel had the capability in anti-fungus commonly habituated in corn husks up the concentration of 15000 ppm. It could naturally be degraded within 12 days. Therefore with these advantageous qualification the natural Parcel made of corn husk paper harboring silica is for moisture absorption as sustainable and environmental conservation material.
การพัฒนาและออกแบบผลิตภัณฑ์กระเป๋าเก็บความเย็นจากแกลบและส่วนเหลือทิ้ง ในกระบวนการแปรรูปข้าวไรท์เบอรี่ และข้าวสีนิล
The Development and Design Cold Bag’s Product from Rice Husk and Waste of Rice Berry and Black Rice Production. It is intended to bring rice husk in process to produce food in order to take advantage of the product design process and create a cooling pouch Master product for everyday use such as treating the refrigerant of a vaccine or medical medicine. Maintaining the temperature of breast milk is a source of design and development of refrigeration bag products. There are research methods starting from the study of the design of experiments. To be a guide to the implementation of the rice husk to bring out the cold storage plate and bring out the design of the product. The result of the master experiment with cold storage plates. Found that Paddy Husk has the right qualities due to the Density= 0.76 g./cm3 Moisture Absorption= 6.25% cracking resistance Modulus of Rupture: MOR= 7.690 MPa. and Modulus of Elasticity: MOE= 1064.77 MPa. which has a qualified property than Paddy husk from black rice. If you touch the water for a long time it has to absorb water and the inflation inside the skin which is inferior to the rice husk properties. The researchers put the extruded sheets from rice to a cold storage material in the pocket designed with a modern shape a material made of nylon fabric. On-off with zipper there is a strap and a box for inserting the pocket side. The bag has a compression plate from the surface of the 5 side rice to help protect the cold and reduce the use of synthetic chemicals which is environmental friendly.
การตรวจสอบความเป็นสารปอซโซลานของเถ้าแกลบผสมเถ้าลอยโดยวิธีการบ่มเร่งกำลัง
This paper presents the investigation of pozzolanic reaction of rice husk ash blended with fly ash by accelerated curing. The compressive strength of cement paste containing rice husk ash blended with fly ash at 30% by weight of cementitious material (PBA-30) was studied. The temperature curing at 60 70 and 80oC were parameter of test in order to determine the suitable temperature and curing period on strength development of cement paste. The ratio of rice husk ash to fly ash was 1:1 by weight and the ratio of water-to-binder (w/b) was 0.38. The test results found that the accelerated curing of PBA-30 at temperature of 60oC for 5 10 and 45 hours had comparable compressive strength to PBA-30 with normal curing at the age of 37 and 28 days respectively. As a result of accelerated curing the calcium silicate (CS) which effect on strength development of cement paste was increased. According to the X-ray diffraction analysis the calcium silicate content in cement paste was comparable. Therefore it can be use accelerated curing to investigate the poozolanic reaction of rice husk ash blended with fly ash within 48 hours.
นวัตกรรมเถ้าแกลบ-เปลือกไม้ในคอนกรีตมวลเบาที่เป็นมิตรกับสิ่งแวดล้อม
This research presents a study of the compressive strength tensile strength flexural strength and water absorption of Cellular Lightweight Concrete containing fine rice hush-bark ash. Portland cement (CT) is partially replaced with pozzolans 20 30 and 40% by weight of the cementitious materials. The results show that the compressive strength tensile strength flexural strength and low water absorption of Cellular Lightweight Concrete improves substantially with partial replacement of Portland cement with rice hush-bark ash. Cellular Lightweight Concrete mix cement containing 20 and 30% of pozzolans can be used to make cementitious materials
การพัฒนาเถ้าแกลบและเถ้าถ่านหินเพื่อใช้แทนที่ปูนซีเมนต์ปอร์ตแลนด์ในงานคอนกรีตกำลังสูง
This research presents a study of the use of classified fly ash and ground rice husk ash as a pozzolanic material in producing high-strength concrete. Portland cement (CT) is partially replaced with classified fly ash and ground rice husk ash by weight of the cementitious materials. Compressive strength porosity and chloride penetration were investigated. The results show that the compressive strength resistance to chloride and low porosity of high-strength concrete improves substantially with partial replacement of Portland cement with fly ash and rice husk ash.