A Study on Chemical Ageing of Composite Ribbed GFRP Bars under Load-Reference-Cited by-同舟云学术

A Study on Chemical Ageing of Composite Ribbed GFRP Bars under Load

Published:2021-08-17 Issue: Volume:410 Page:611-616
ISSN:1662-9507
Container-title:Defect and Diffusion Forum
language:
Short-container-title:DDF

Author:

Sakoshev Zakhar G.¹,Blaznov Aleksey N.²,Firsov Vyacheslav V.²

Affiliation:

1. Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS)

2. Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences

Abstract

Here we explored the chemical durability of glass fiber-reinforced polymer (GFRP) bars under load. Three batches of ribbed GFRP bar specimens were fabricated using binder matrices: ED-22+isomethyltetrahydrophthalic anhydride (iso-MTGFA), ED-22+Ethal-450 and NPPN-631+ iso-MTGFA. As the reinforcing filler, we used an EC17 glass roving (for all the specimen batches). The specimens of each batch were aged in a 1 N alkaline NaOH solution at 60 °C for 2000 hrs. The ageing was performed under a 300 MPa load (30% of the failure stress). The tensile strength of the specimens from each batch following ageing was measured. The tensile test results demonstrated that that the strength loss of the specimens following chemical ageing was 58.9% for batch 1 based on ED-22+iso-MTGFA, 6.6% for batch 2 based on ED-22+Ethal-450, and 33.6% for batch 3 based on NPPN-631 + iso-MTGFA. The specimens of batch 2 based on ED-22+Ethal-450 exhibited the greatest resistance to the NaOH alkaline solution (a strength loss of 6.6%).

Publisher

Trans Tech Publications, Ltd.

Subject

Condensed Matter Physics,General Materials Science,Radiation

Link

https://www.scientific.net/DDF.410.611.pdf

Reference17 articles.

1. G.V. Karpenko, I.I. Vasilenko, Corrosion Cracking of Steels, Tekhnika, Kiev, (1971).

2. P.A. Rebinder, Physicochemical Mechanics, Znaniye, Moscow, (1958).

3. A. Phillips, Survey of application of overhead transmission line polymer insulators in North America and summary of EPRI polymer insulator failure database, in: Proceedings of the World Conference and Exhibition on Insulators, Arresters and Bushings, Marbella, Spain, 2003, pp.147-157.

4. Suspension and Tension Composite Insulators for Overhead Lines, in: CIGRE Working Group 10 of Study Committee 22, 1980, pp.22-80.

5. L. Xiong, W. Shaon, F. Ju, Application and Evaluation of Composite Insulators in China. Applying New Technologies for Better Reliability and Lower Costs, in: Proceedings of the World Insulator Congress and Exibition, 2001, pp.29-42.