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ผลงานตีพิมพ์ในวารสารวิชาการHDPE pipeline length for conditioning anaerobic process to decrease BOD in municipal wastewaterผู้แต่ง: Jinjaruk, T., Chunkao, K.,  Dr.Kobkiat Pongput, Associate Professor , Choeihom, C., Dr.THANIT PATTAMAPITOON, Assistant Professor , Dr.WATCHARAPONG WARARAM, Lecturer, Thaipakdee, S., Srichomphu, M., Maskulrath, P., วารสาร: 
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Differential Scanning Calorimetric Studies of Non-isothermal Crystallization of HDPE and HDPE/CaCO3 Composites) ผู้เขียน:ดร.ณัฐณรัณ (สุปรียา) ตรีวิจิตรเกษม, รองศาสตราจารย์, Thanate Sukkamart, พนม กาศรุณ สื่อสิ่งพิมพ์:pdf AbstractCrystallization of high density polyethylene (HDPE) and HDPE/CaCO3 composites (10, 20 and 30% wt, CaCO3) was investigated by differential scanning calorimetry (DSC) under non-isothermal conditions. The Avrami method modified by Jeziorny and a method developed by Liu et al. were employed to describe the non-isothermal crystallization process of the samples. The results showed that the Avrami exponent n decreased from 3.0 to 2.4 with an increase in the cooling rate from 5?C/min to 40?C/min, while the crystal growth constant Zc was nearly constant (~1.1) at a 10?C /min – 40?C/min cooling rate for all systems. The value of F(T) showed that the crystallization rate of the HDPE/10% CaCO3 composite was the slowest at a given cooling rate. Moreover, the activation energy determined from the Kissinger method indicated little difference in the values of the activation energy for all systems, except the 30% CaCO3 system which showed a slightly higher activation energy. |
 ที่มา:Kasetsart Journal (Natural Science)(วารสารวิทยาสารเกษตรศาสตร์ สาขาวิทยาศาสตร์)หัวเรื่อง:การศึกษาแคลอรีเมตรีแบบส่องกราดอนุพันธ์ของการตกผลึกไม่ไอโซเทอร์มัลของสารประกอบ HDPE และ HDPE/CaCO3 |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Properties of Recycled Plastics from HDPE Drinking Water Bottles) ผู้เขียน:นางสินีนาถ จริยโชติเลิศ, ผู้ช่วยศาสตราจารย์ , Naruekmon Kooudomrut, Wipada Rittisith สื่อสิ่งพิมพ์:pdf AbstractThe growing amount of plastic bottles have caused plastic waste problem in Thailand and elsewhere. In this paper the recycling of drinking water bottles made of HDPE was studied. Collected waste bottles were ground to small pieces and then mixed with virgin HDPE resin at the composition of 0, 20, 25, 40, and 50% recycled plastics. The effect of adding 0, 10, 20 and 30% (w/w) of calcium carbonate as plastic filler was also studied. The mixed compound was injection molded into dumbbell – shaped testing samples and tested for density, tensile strength and elongation. The result showed that increased recycled plastics significantly reduced density and tensile strength but increased elongation of tested samples. Addition of calcium carbonate also significantly decreased both tensile strength and elongation. The chosen quantity of recycled plastics in compounded mixture was 20% and calcium carbonate content of 10%. The recycled HDPE was utilized by injection molding into flowerpots or multi-purpose trays. |