02838nas|a2200397 i 4500 20260818094944.0 020219s2000 th u m rtt 00| a1eng d .b11846264 AIT Thesis no.PP-00-9 Pawilai Phopunyasak Effect of furnish variables and storage conditions on AKD sizing stability Bangkok : Asian Institute of Technology, 2000 43 leaves Thesis ; no. PP-00-9 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science Thesis (M.Sc.) - Asian Institute of Technology, 2000 Mills using AKD as an internal s1zmg agent in conjunction with precipitated calcium carbonate as filler experience a loss of paper's resistance to liquid penetration with time. In this study some factors affecting this sizing loss, such as filler type, pH of stock, and storage conditions of sized paper were studied. Cobb test was used to determine and follow the development of water resistance of the AKD sized laboratory handsheets. It was found that the initial degree of sizing was critical. If the paper was sufficiently sized, no reversion occurred. High AKD addition can prevent size reversion due to any of the studied variables. AKD was an efficient sizing agent in the absence of filler. When filler was added, sizing performance of paper was suffered. Precipitated Calcium Carbonate (PCC) need lower amount of AKD than Ground Calcium Carbonate (GCC) to get adequate sizing. However, if it was not sized sufficiently, size reversion was higher and faster than GCC. High pH of stock and tropical climate boost size reversion at high PCC loading levels. But the effect was small at low addition level. The effect was also less with GCC filled handsheets. Papermaking Chemistry Paper sizing Retulainen, Elias, Chairperson Ruhanen, Mauno, Examination Committee Nazhad, Mousa M., Examination Committee Government of Finland, Scholarship donor Asian Institute of Technology. Thesis ; no. PP-00-9 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B06659 .b11846264 mnait u 240329 0 020219 m a u 0 mnait mnarc 20 40 Barcode : 30050120650592 CREATED : 2002-02-19 RECORD # : i12270659 LPATRON : 1015264 LCHKIN : 2003-09-28 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 0 Barcode : 30050160026158 CREATED : 2016-03-18 RECORD # : i12897796 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 34373 34373 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.PP-00-9 30050120650592 2026-08-18 09:49:44 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.PP-00-9 30050160026158 2026-08-18 09:49:44 2026-08-18 40