Document Type : Original Article
Authors
1
Egyptian Petroleum Research Institute (EPRI),Nasr City, Cairo, Egypt.
2
Higher Technological Institute (HTI), Tenth of Ramadan City, Egypt.
Abstract
Abstract Polyurethanes are among the most versatile polymers because of the wide range of monomers, particularly diols or polyols that can be utilized in their synthesis. This research focuses on the syntheses of poly(urethane amide) materials from L-ascorbic acid. The L-ascorbic acid has been given to the use of as feedstock's for polymeric materials, because this tend to be inexpensive and available in large quantities. The new 2,3bis-((2-aminoethylamino)ethyl) – 2,3,4,5,6 - pentahydroxy-2-enamide (AEAEPHA) resin has been synthesized from fused reaction of L- ascorbic acid with diethylenetriamine. The product AEAEPHA is purified and confirmed the structure by FT.IR, 1HNMR spectroscopy, and elemental analysis. The different 25,30,35,40,45,50 and 55 gm of AEAEPHA diluted with 10 ml solvent of dimethyl formamide, toluene and xylene, which are formulated with 5gm epoxy, 3 gm from each ZnO2 , TiO2, and CaCO3, 2gm Al-silicate ,5gm Talc and 10gm Zn dust. The different concentration 5, 10, 15 and 20 gm of curing agent toluene diisocyanate (TDI) is used as curing agent with each formulation. These formulations are applied on the prepared surface of mild steel specimens of petroleum equipment by brushed method to form a poly(urethane amide) epoxy films. The physical, mechanical, chemical and corrosion properties of these films are discussed and promised results are indicated that the possibility of using these coating formulations in the protection of petroleum and various industrials equipment.
Keywords
)
View on SCiNiTO