Interaction of water with epoxy.

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关键词: ABSORPTION;    ADDITIVES;    DESORPTION;    DIFFUSION;    ETHERS;    HYDROGEN;    HYDROLYSIS;    IODINE;    PLASTICIZERS;    POLYAMIDES;    POLYMERS;    RESINS;    SOLVENTS;    SWELLING;    WATER Absorption.;    Epoxy compounds.;    Paints.;   

DOI  :  10.2172/985494
RP-ID  :  SAND2009-4405
PID  :  OSTI ID: 985494
Others  :  TRN: US201016%%2194

学科分类：再生能源与代替技术

美国|英语

来源: SciTech Connect

【 摘 要 】

The chemistries of reactants, plasticizers, solvents and additives in an epoxy paint are discussed. Polyamide additives may play an important role in the absorption of molecular iodine by epoxy paints. It is recommended that the unsaturation of the polyamide additive in the epoxy cure be determined. Experimental studies of water absorption by epoxy resins are discussed. These studies show that absorption can disrupt hydrogen bonds among segments of the polymers and cause swelling of the polymer. The water absorption increases the diffusion coefficient of water within the polymer. Permanent damage to the polymer can result if water causes hydrolysis of ether linkages. Water desorption studies are recommended to ascertain how water absorption affects epoxy paint.