Preparation of rapid (chain-stopped) alkyds by incorporation of gum rosin and investigation of coating properties

In this study, the synthesis, characterization, and properties of a short oil length chain-stopped(rapid) alkyd resin is investigated. Gum rosin modified alkyd resin (RA-GR) was prepared using soybean oil, phthalic anhydride, glycerin and gum rosin acid. An alkyd modified with benzoic acid (RA-BA) was also prepared for comparison. FTIR analyses and GPC measurements of the alkyds were used for characterization. Other properties such as the viscosity, acid value, and solid content of the final resins were determined. Separately, the synthesized resins were used in paint formulations without any changes in other parameters such as filler, airdrying agents, solvents, etc. Paints were applied to metal and glass surfaces and the effect of gum rosin was investigated by looking at touch and hard drying times, adhesion to metals and gloss changes. Compared to the benzoic acid modified resin (RA-BA), gum rosin modified resin (RA-GR) exhibited remarkable positive effects on the paint with a better adhesion to the metals, and short drying times without any loses in the glosses.

Keywords:

Alkyd, chain–stopped(rapid), condensation polymerization gum rosin, paint,

PDF

___

Alam M, 2014, ARAB J CHEM, V7, P469, DOI 10.1016/j.arabjc.2013.12.023
Defeyt C, 2017, HERIT SCI, V5, DOI 10.1186/s40494-017-0124-7
Dighe AK, 2000, J SCI IND RES INDIA, V59, P808
Dizman C, 2013, POLYM INT, V62, P991, DOI 10.1002/pi.4525
El-Ghazawy RA, 2015, EUR POLYM J, V69, P403, DOI 10.1016/j.eurpolymj.2015.06.025
Ezeh IE, 2012, IND CROP PROD, V36, P94, DOI 10.1016/j.indcrop.2011.08.013
Hofland A, 2012, PROG ORG COAT, V73, P274, DOI 10.1016/j.porgcoat.2011.01.014
Ikhuoria EU, 2011, AFR J BIOTECHNOL, V10, P1913
Jovicic MC, 2008, J THERM ANAL CALORIM, V94, P143, DOI 10.1007/s10973-008-9004-4
Kugler S, 2019, MOLECULES, V24, DOI 10.3390/molecules24091651
Kumar Shobhit, 2013, Polim Med, V43, P45
Liu YP, 2014, POLYM CHEM-UK, V5, P3170, DOI 10.1039/c3py01260c
Ma SQ, 2016, POLYM INT, V65, P164, DOI 10.1002/pi.5027
Odetoye TE, 2013, J APPL POLYM SCI, V127, P4610, DOI 10.1002/app.37999
Ogunniyi DS, 2008, BIORESOURCE TECHNOL, V99, P1300, DOI 10.1016/j.biortech.2007.02.044
Soucek MD, 2012, PROG ORG COAT, V73, P435, DOI 10.1016/j.porgcoat.2011.08.021
van Haveren J, 2007, J COAT TECHNOL RES, V4, P177, DOI 10.1007/s11998-007-9020-5
Wang JF, 2017, SUSTAINABLE POLYMERS FROM BIOMASS, P103
Wang JF, 2013, GREEN MATER, V1, P105, DOI 10.1680/gmat.12.00013
Wegner G, 2000, ACTA MATER, V48, P253, DOI 10.1016/S1359-6454(99)00298-0
Wilbon PA, 2013, MACROMOL RAPID COMM, V34, P8, DOI 10.1002/marc.201200513
Williams RC, 2000, ADV ALKYD RESINS APP, P471, DOI 10.1016/b978-008043417-9/50027-1
Yadav BK, 2016, J BIOACT COMPAT POL, V31, P111, DOI 10.1177/0883911515601867
Yao KJ, 2011, BIOMACROMOLECULES, V12, P2171, DOI 10.1021/bm200460u
Yebra DM, 2005, PROG ORG COAT, V53, P256, DOI 10.1016/j.porgcoat.2005.03.008
Zheng YJ, 2010, MACROMOLECULES, V43, P5922, DOI 10.1021/ma101071p