COMPARATIVE REACTIVITY STUDY OF BISPHENOL-A BASED EPOXY RESINS WITH DIFFERENT CURING AGENTS AND ACCELARATORS

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GOWDA SH.K.N.; MAHENDRA K.N.

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Journal: VIRTUAL Year:621 | Volume:1 | Issue:1 Page(s): 1-14

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Title

COMPARATIVE REACTIVITY STUDY OF BISPHENOL-A BASED EPOXY RESINS WITH DIFFERENT CURING AGENTS AND ACCELARATORS

Author(s)

GOWDA SH.K.N. | MAHENDRA K.N. | Issue Writer Certificate

Keywords

EPOXY RESINS

CURING AGENT

ACCELARATORS

CURING TIME

EXOTHERM

Abstract

A detailed study on the curing of Bisphenol A-based liquid epoxy resin such as Lapox B-13 (Viscosity 12000-16000 mpos) and Lapox B-11 (Viscosity 9000-12000mpos) with various amines like EDA (Ethylenediamine),DETA (Diethylenetriamine), TETA (Triethylenetetramine), AEP (Aminoethylpiperazine) and IPDA (Isophoronediamine) as curing agents have been carried out. The curing rates and the exotherm have been determined. The effect of various accelerators or modifiers on the curing rate is also worked out using salicylic acid, phenol and nonylphenol. The results obtained reveal that the curing rates are faster in the case of tertiary amines compared to secondary and primary amines. The high exotherm and the least curing time in the case of AEP can be attributed to the tertiary nitrogen group present and which can act as a catalyst for the curing process. It is also observed that a cyclic amine like Isophoronediamine which has only primary amine group takes a longer time for curing with a low isotherm. The data obtained with accelerators on the curing studies clearly indicate that they enhance the curing rate and the exotherm in all the cases. In majority of the cases the cured samples obtained were hard and polymeric transparent materials. The effect of mass of the sample on the curing rate and isotherm has also been observed. All the cured samples show good resistance to moisture absorption and show high chemical resistance.

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APA: Copy

GOWDA, SH.K.N., & MAHENDRA, K.N.. (0). COMPARATIVE REACTIVITY STUDY OF BISPHENOL-A BASED EPOXY RESINS WITH DIFFERENT CURING AGENTS AND ACCELARATORS. VIRTUAL, 1(1), 1-14. SID. https://sid.ir/paper/542208/en

Vancouver: Copy

GOWDA SH.K.N., MAHENDRA K.N.. COMPARATIVE REACTIVITY STUDY OF BISPHENOL-A BASED EPOXY RESINS WITH DIFFERENT CURING AGENTS AND ACCELARATORS. VIRTUAL[Internet]. 0;1(1):1-14. Available from: https://sid.ir/paper/542208/en

IEEE: Copy

SH.K.N. GOWDA, and K.N. MAHENDRA, “COMPARATIVE REACTIVITY STUDY OF BISPHENOL-A BASED EPOXY RESINS WITH DIFFERENT CURING AGENTS AND ACCELARATORS,” VIRTUAL, vol. 1, no. 1, pp. 1–14, 0, [Online]. Available: https://sid.ir/paper/542208/en

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