Abstract
The effects of moisture content and time on mechanical behavior of polymer materials are investigated both theoretically and experimentally in this paper. An equivalence relationship between time intervals and the moisture content for polymer nylon-6 has been established by way of experimental observation and measured results. The relationship shows that there exists equivalence between moisture and service time in affecting mechanical properties. In other words, an increase in moisture can be replaced by prolonging acting time in producing the same effect on material properties. Consequently, a moisture-time superposition principle is presented based on the experimental results and the analogy of temperature-time superposition principle. Numerical results such as stress-strain curves with different moisture contents are presented to verify the applicability and correctness. The proposed method appears very promising in study on the effect of moisture content on mechanical behavior of polymer materials.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Sung, Y., Kam, Y. S., Finite element analysis of moisture distribution and hygrothermal stresses in TSOP IC packages, Finite Elements in Analysis and Design, 1998, 30(1/2): 65–79.
Buchhold, R., Nakladal, A., Sahre, K. et al., Mechanical stress in micromachined components caused by humidity-induced in-plane expansion of thin polymer films, Thin Solid Films, 1998, 312: 232–239. [DOI]
Lee, S. S., Boundary element analysis of singular hygrothermal stresses in a bonded viscoelastic thin film, International Journal of Solids and Structures, 2001, 38: 401–412. [DOI]
Xu, G., He, M. Y., Clarke, D. R., The effect of moisture on the fracture energy of TiN/SiO2 interfaces in multi-layer thin films, Acta Materialia, 1999, 47(15–16): 4131–4141.
Whitney, J. M., Daniel, I. M., Pipes, R. B., Experimental mechanics of fiber reinforced composite materials, Society for Experimental Stress Analysis Monograph, 1982, 4: 237–247.
Clark, R. L., Craven, M. D., Kander, R. G., Nylon 66/poly(vinyl pyrrolidone) reinforced composites: 2 Bulk mechanical properties and moisture effects, Composites, 1999, Part A: 30.
Chang, W. J., Weng, C. I., An analytical solution of a transient hygrothermal problem in an axisymmetric double-layer annular cylinder by linear theory of coupled heat and moisture, Appl. Math. Modelling, 1997, 21: 721–734. [DOI]
Tsai, C. L., Du, Y., Characterization of the pneumatic behavior of carbon/epoxy composites, Composites Science and Technology, 2001, 61(4): 551–555.
Aboudia, J., Todd, O., Williams, B., A coupled micro-macromechanical analysis of hygrothermoelastic composites, International Journal of Solids and Structures, 2000, 37: 4149–4179. [DOI]
Tay, A. A. O., Lin, T. Y., Influence of temperature, humidity, and defect location on delamination in plastic IC packages, The 6th Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITHERM ’98), 27–30 May 1998, Washington, USA.
Kang, Y. L., Lu, Z. X., Liu, J. et al., Experimental and Theoretical Analysis for Material Behavior of ACA Film, Announcement and call for papers, The Fifth International IEEE Symposium on High Density Packaging and Component Failure Analysis in Electronics Mannfacturing (HDP ’02), Shanghai, 2002, June 30–July 3: 123–125.
Kang, Y. L., Fu, D. H., Wang, H. W. et al., Analysis of experiments on mechanical properties of thin films, in 3rd International Conference on Experimental Mechanics, Beijing, Otc. 15–17, 2001 (eds. Wu Xiaoping, Qin Yuwen, Fang Jing et al.), Proceedings of SPIE, 2002, Vol. 4537: 35–40.
Liu, Y. C., Hwang, B. J., Mechanism of conductivity decay of polypyrrole exposed to water and enhancement of conductivity stability of copper(I)-modified polypyrrole, Journal of Electroanalytical Chemistry, 2001, 501: 100–106. [DOI]
Gampp, R., Oelhafen, P., Gantenbein, P. et al., Accelerated aging tests of chromium containing amorphous hydrogenated carbon coatings for solar collectors, Solar Energy Materials and Solar Cells, 1998, 54(1/4): 369–377. [DOI]
Biliaderis, C. G., Lazaridou, A., Arvanitoyannis, I., Glass transition and physical properties of polyol-plasticised pullulan-starch blends at low moisture, Carbohydrate Polymers, 1999, 40(1): 29–47. [DOI]
Schapery, R. A., On the characterization of non-linear viscoelastic materials, Polymer Engineering and Science, 1969, 9: 295–310.
Maka, C. K. Y., Lama, D. C. C., Yuena, M. M. F. et al., Deformation prediction of the laminated object modeling composite laminates, Journal of Materials Processing Technology, 2000, 103: 261–266. [DOI]
Kasapis, S., Advanced topics in the application of the WLF/free volume theory to high sugar/biopolymer mixtures: a review, Food Hydrocolloids, 2001, 15: 631–641. [DOI]
Mamesjet, Damuri, Liu Tongwei, Polymer and composite mechanics, The Newage Publishing Company, 1988, 4.
Kang, Y. L., Zheng, G. F., Qin, Q. H. et al., Effect of moisture on mechanical behavior of polymer by experiments, Key Engineering Materials, 2003, 251–252: 7–12.
Wang, H. W., Kang, Y. L., Fu, D. H. et al., Recognition method of digital marker and its application in material property test, Journal of Experimental Mechanics, 2002, 17(4): 433–437.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zheng, G., Kang, Y., Sheng, J. et al. Influence of moisture content and time on the mechanical behavior of polymer material. Sci. China Ser. E-Technol. Sci. 47, 595–607 (2004). https://doi.org/10.1360/04ye0119
Received:
Issue Date:
DOI: https://doi.org/10.1360/04ye0119