Synthesis, characterization, and performance evaluation of hard, anticorrosive coating materials derived from diglycidyl ether of bisphenol A acrylates and methacrylates

Ahmad, Sharif; Ashraf, S. M.; Hassan, Syed Zulqadar; Hasnat, Abul

doi:10.1002/app.21202

Cited by 16 publications

(16 citation statements)

References 23 publications

(22 reference statements)

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“…It has been reported that epoxy coatings modified with methacrylate showed improved chemical and corrosion resistance without compromising the hardness and impact resistance. 177 WATER-BORNE COATINGS: Industrial water-borne acrylic-based coatings have gained importance due to the desire to reduce VOC emissions. Compared to solvent-borne acrylic coatings, the water-borne acrylic coatings offer better VOC compliance, but may suffer from adhesion limitations and high cost.…”

Section: Acrylic Technologymentioning

confidence: 99%

Anticorrosive coatings: a review

et al. 2009

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Section: Acrylic Technologymentioning

confidence: 99%

Anticorrosive coatings: a review

et al. 2009

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“…The MAPEAA was obtained by the poly (condensation) of bi-functional monomers; HEMAFA (diol) and adipic acid (dibasic acid) in 1:1 molar ratio. The polymeric reaction proceeded through the poly(condensation)s of carboxyl and alcoholic groups to form ester moieties without scissoring of polyester chain [19]. The byproduct water was removed from the reaction mixture as azeotrope with the help of Dean-Stark trap to facilitate the esterification [20,21].…”

Section: Preparation Of Coatingsmentioning

confidence: 99%

Synthesis and Characterization of Poly (ester-amide) of Adipic Acid and Fatty Amide of Melia Azedarach Seed Oil – An Eco-friendly Resource

Hasnat¹,

Ahamad²,

Ahmad³

2017

MOCR

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Abstract.Synthesis of polymeric materials from renewable resources has attracted the attention of researcher worldwide as they are not only reducing the dependency on petrochemicals, a finite resource but also friendly to the environment. Synthesis of valuable polymers from non-conventional and non-edible vegetable oils solves the problem of waste disposal as well as bringing down the cost of end products. Melia azedarach seed oil (MASO), a non-traditional, non-edible and abundantly available resource is utilized for the synthesis of poly (ester-amide) (MAPEAA) by the aminolysis with diethanolamine followed by step-growth polymerization with adipic acid. The MAPEAA polymeric resin was characterized by physic-chemical analyses as per standard reported laboratory methods. The structural elucidation of the resin was carried out by spectral analyses. Physicomechanical and chemical/corrosion resistance performances of the resin were also investigated. Keywords:Melia azedarach seed oil, renewable resource, vegetable oil, Poly (ester-amide) IntroductionThere have been potential demands worldwide for replacing petroleum based raw materials with the renewable ones [1][2][3]. This is quite significant from the societal and environmental points of view. Among different renewable resources vegetable oils obtained from seeds of various plants are in the spotlight of the chemical industries as they are the abundantly available in nature and also show low eco-toxicity as well as low-toxicity towards humans [4,5]. Common traditional seed oils such as linseed, sunflower, castor, soybean, coconut are being largely used in the synthesis of polymers like alkyds, epoxies, polyurethanes, interpenetrating polymer networks (IPN)s, poly (ester-amide)s and many others [4,[6][7][8][9][10]. These polymers are extensively used as coatings, adhesives, insulators and biomedical structures. However, among afore mentioned traditional oils some of them possess medicinal values and are edible too [11,12]. Therefore, it is important to explore the gift of the nature and utilize the non-edible and non-conventional seed oils as starting raw materials for the development polymers, which ultimately reduce the demands of conventional vegetable oils. Melia azedarach belongs to the family meliaceae largely cultivated in rural areas due to its valuable wood [13,14]. The seeds of plants contain about 40-wt % triglyceride oil with sufficiently high iodine value, which provide the film formation ability to the synthesized polymers [13,14]. Meagre utilization of Melia azedarach seed oil, especially in the polymer syntheses encourages us to utilize this triglyceride oil in the synthesis of poly(ester-amide) using adipic acid as a dibasic acid [14][15][16].Poly (ester-amide)s of vegetable oil origin are amide modified alkyds and have hybrid properties of both functionalities pendent amide and repeating ester; consequently show better performances than normal alkyds in terms of hardness, water vapor resistance and corrosion resistance [9,12]. In present work eff...

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“…[24] However, it was difficult to reach the destination of improving the thermal property of epoxy resin through incorporation of polysiloxane, because of their high molecular weight and weak interaction between the soft segments of polysiloxane and the polar hard segments of epoxy. [22,25,26] Therefore, the silicone with small molecular weight was an alternative choice for the thermal reinforcement. Mercado et al [23] incorporated silicon containing epoxides into epoxy resin and investigated the effect of these silicon components on the thermal and flame retardant properties of epoxy matrix.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of silica network and modified graphene oxide into epoxy resin for improving thermal and anticorrosion properties

Xie

Liang

Yang

et al. 2020

J of Applied Polymer Sci

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In this study, the silica network and functionalized graphene oxide (GO) were incorporated into the epoxy coating systems, which was aimed to improve the thermal property and corrosion resistance of epoxy coatings. First, tetraethyl orthosilicate (TEOS) oligomers and epoxy hybrid was fabricated through sol–gel method. Then the (3‐aminopropyl) triethoxysilane (APTES) modified graphene oxide (FGO) was added into the epoxy hybrid composite to obtain anticorrosion coatings. Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), Raman spectrum, and X‐ray photoelectron spectrum were conducted to evaluate the structural information of GO and APTES modified GO nanosheets. The results indicated that the APTES successfully grafted onto the surface of GO sheets. Besides, TGA curves, electrochemical measurements and salt spray test were also carried out to characterize the thermal performance and corrosion resistance of GO based epoxy coatings. The TGA results revealed that the thermal performance of epoxy coating containing silica network and FGO nanofiller (ES/FGO) was significantly strengthened compared to pure epoxy. The initial degradation temperature of epoxy coating was increased from 300 to 343.7°C after incorporation of silica component and FGO. The EIS measurements demonstrated that the impedance modulus of ES/FGO was significantly higher than neat epoxy, which indicated that the corrosion resistance of epoxy was substantially strengthened after introduction of silica component and FGO. The corrosion rate and inhibition efficiency of epoxy composite coatings were also shifted from 1.237 × 10−7 mm/year and 76.6% (for neat epoxy) to 1.870 × 10−9 mm/year and 99.6% (for ES/FGO), respectively. The salt spray test also revealed that the silica and FGO can improve the corrosion resistance of epoxy coating. Additionally, the dispersion of GO sheets was also enhanced after the modification of APTES siloxane.

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Synthesis, characterization, and performance evaluation of hard, anticorrosive coating materials derived from diglycidyl ether of bisphenol A acrylates and methacrylates

Cited by 16 publications

References 23 publications

Anticorrosive coatings: a review

Anticorrosive coatings: a review

Synthesis and Characterization of Poly (ester-amide) of Adipic Acid and Fatty Amide of Melia Azedarach Seed Oil – An Eco-friendly Resource

Incorporation of silica network and modified graphene oxide into epoxy resin for improving thermal and anticorrosion properties

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