FN Archimer Export Format
PT J
TI Ageing mechanism and mechanical degradation behaviour of polychloroprene rubber in a marine environment: Comparison of accelerated ageing and long term exposure
BT 
AF LE GAC, Pierre-Yves
   LE SAUX, V.
   PARIS, M
   MARCO, Y.
AS 1:1;2:2;3:3;4:2;
FF 1:PDG-REM-RDT-MS;2:;3:;4:;
C1 IFREMER, Ctr Brest, French Ocean Res Inst, Mat & Struct Grp, F-29280 Plouzane, France.
   ENSTA Bretagne Lab Brestois Mecan & Syst, EA 4325, F-29806 Brest 9, France.
   Univ Nantes, CNRS, Inst Mat Jean Rouxel IMN, F-44322 Nantes 3, France.
C2 IFREMER, FRANCE
   ENSTA BRETAGNE, FRANCE
   UNIV NANTES, FRANCE
SI BREST
SE PDG-REM-RDT-MS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.77
TC 58
UR https://archimer.ifremer.fr/doc/00073/18429/20232.pdf
LA English
DT Article
DE ;Chloroprene rubber;Degradation;Sea water;Silica;Accelerated ageing;Natural ageing
AB Polymers are widely used in marine environments due to their excellent properties and good weathering resistance. Despite this extensive use, their long term behaviour in such an aggressive environment is still not well known. To assess the polymer durability within reasonable durations, it is essential to perform accelerated ageing tests to accelerate the degradation kinetics but without any modification of the degradation process. This study therefore proposes and validates accelerated ageing tests to study marine ageing of a silica-filled chloroprene rubber (CR) used for offshore applications. Several accelerated ageing protocols are investigated for temperatures ranging from 20 to 80 degrees C in renewed natural seawater. The ageing consequences are characterized using physical measurements (FTIR, solid state NMR) and mechanical testing based on monotonic tension tests. Instrumented micro-indentation tests are also employed, in order to describe accurately the ageing gradients through sample thickness. The measurements obtained on the samples cut from accelerated specimens are compared to those obtained from the topcoat of an offshore flowline aged under service conditions for 23 years. For both kinds of specimens, polychloroprene develops rapid material changes most clearly represented by a considerable increase in stiffness, which allows the accelerated ageing protocols to be validated. (C) 2011 Elsevier Ltd. All rights reserved.
PY 2012
PD MAR
SO Polymer Degradation And Stability
SN 0141-3910
PU Elsevier Sci Ltd
VL 97
IS 3
UT 000300923500012
BP 288
EP 296
DI 10.1016/j.polymdegradstab.2011.12.015
ID 18429
ER

EF