Manostaxx
ALKYD CALCULATIONS VERY USEFULL WHEN WE DESIGN AN ALKYD. I PERSONALLY USED THESE CALCULATIONS AND DESIGNED MANY ALKYDS SUCCESSFULLY. THESE ARE ALL AVAILABLE IN T.C. PATTON BOOK.
ON THE BASIS OF THESE CALCULATIONS I PREPARED AN EXCEL SPREADSHEET WITH FUNCTIONS, SO THAT WHEN WE ENTER FORMULATION INSTANTLY WE GET ALL CALCULATED RESULTS. IF YOU ARE INTEREST, PLEASE SEND ME AN EMAIL FOR EXCEL SHEET OF ALKYD CALCULATIONS.
INPUT
MOLECULAR WEIGHT = ———————————————
( INPUT X ACID VALUE )
(mo–ea) + ( —————————– )
( 56100 )
( ea –mo ) X 56100
ACID NUMBER GEL = ———————————
INPUT
2 ea
FUNCTIONALITY = —————
mo
ACID QUANTITY
WATER OF REACTION = ————————————— X 18 (Calculate for each Acid RM and total it)
MOLECULAR WEIGHT
YIELD = INPUT — WATER
INPUT
MOLECULAR WEIGHT = ———————————————
( INPUT X ACID VALUE )
(mo–ea) + ( —————————– )
( 56100 )
( ea –mo ) X 56100
ACID NUMBER GEL = ———————————
INPUT
2 ea
FUNCTIONALITY = —————
mo
ACID QUANTITY
WATER OF REACTION = ————————————— X 18 (Calculate for each Acid RM and total it)
MOLECULAR WEIGHT
YIELD = INPUT — WATER
mo
ALKYD CONSTANT = K = ————-
ea
eb
EXCESS HYDROXY = R = —————- X 100 — 100
ea
QUANTITY OF OIL X 100
OIL LENGTH = ——————————————-
YIELD
( eb — ea ) X 56100
HYDROXYL NUMBER = ————————————— + ACID VALUE
YIELD
Continue at: http://resintech.blogspot.pt/2007/04/alkyd-calculations.html
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