Monitoring and characterization of chemical shrinkage during curing in a RTM resin

Xueqin Li, Zilong Zhang, Xiao Su Yi

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

Chemical cure shrinkage of polymer matrix is a significant source of residual strain formation in composite products during curing. In this paper, fiber Bragg grating (FBG) sensors were used to monitor the free strain development caused by chemical shrinkage and compared with results of differential scanning calorimetry and rheological analysis. The results showed that the gel point could be clearly identified by FBG sensors and compressive residual strain of around 800με was caused by isothermal curing reaction after gelation. The relationship between the chemical shrinkage ratio and conversion degree was found to be nonlinear.

Original languageEnglish
Title of host publicationNew Materials and Processes
Pages2594-2598
Number of pages5
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event3rd International Conference on Manufacturing Science and Engineering, ICMSE 2012 - Xiamen, China
Duration: 27 Mar 201229 Mar 2012

Publication series

NameAdvanced Materials Research
Volume476-478
ISSN (Print)1022-6680

Conference

Conference3rd International Conference on Manufacturing Science and Engineering, ICMSE 2012
Country/TerritoryChina
CityXiamen
Period27/03/1229/03/12

Keywords

  • Chemical shrinkage
  • Cure monitoring
  • Fiber Bragg grating
  • RTM resin

ASJC Scopus subject areas

  • General Engineering

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