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Gamma radiation induced compressive response of silicon rubber foam: Experiments and modeling

  • Huyi Wang (a1), Yong Qiu (a1), Wenjun Hu (a1) and Yongmei Chen (a1)

Abstract

Utilizing the experimental and modeling approaches, the Gamma radiation effects on stress responses of the silicon rubber foam under quasistatic compression are investigated. In the experimental work, the samples of the silicon rubber and the silicon rubber foams are quasistatically compressed before and after the Gamma radiation (a dose of 500 kGy and a dose rate of 100 Gy/min). The data reveal that the Gamma radiation obviously increases the material hardness, e.g., the compressive stresses of the silicon rubber and the silicon rubber foams both increase over 5 times as the strain is 20%. In the simulation work, a multiscale method combined with finite element method is developed to numerically predict the compressive stress of the silicon rubber foams. The microscale models are first constructed based on the real microstructures of the silicon rubber foams. The compressive stress and strain relation before and after the Gamma radiation is then simulated and obtained utilizing the phenomenological constitutive models based on the testing data of the silicon rubber. The simulation reveals that the Gamma radiation strongly affects the compressive response of the microscale models. The stress responses of the microscale models are then transferred into the macroscale models. The results also prove that the Gamma radiation obviously increases the hardness of the macroscale models. Data comparison shows that the numerical results agree with the testing data well, which verifies the developed method. The present work develops a new method to predict the radiation effects on mechanical properties of rubber foams.

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Corresponding author

a)Address all correspondence to this author. e-mail: huwenjuncaep@sohu.com

References

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1.Wu, Y.Z., Li, H.Y., and Feng, S.Y.: Preparation of aminopropyl polysiloxane based heat curable silicone rubber. J. Mater. Sci. Eng. 22, 41 (2004).
2.Zhang, C.S., Lu, C.H., and Huang, Y.G.: Effects of BPO/DCP on foam properties of silicon rubber. Silicon Mater. 24, 373 (2010).
3.Chen, M.H., Zhao, Q., Luo, S.K., Lei, W.H., and Li, Y.: Effects of silica on the rheological and mechanical properties of the RTV silicone rubber foam. China Elastomeric 21, 15 (2011).
4.Suzana, S.J., Vojislav, J., Milena, M.C., Jaroslava, B.S., and Gordana, M.: Comparative study of radiation effect on rubber–carbon black compounds. Composites, Part B 62, 183 (2014).
5.Ashok, N., Balachandran, M., Lawrence, F., and Sebastian, N.: EPDM–chlorobutyl rubber blends in γ-radiation and hydrocarbon environment: Mechanical, transport, and ageing behavior. J. Appl. Polym. Sci. 134, 45195 (2017).
6.Hill, D.J.T., Donnell, J.H.O., Perera, M.C.S., Pomery, P.J., and Smetsers, P.: Mechanism of radiation vulcanization of natural rubber latex sensitized by monoacrylates. J. Appl. Polym. Sci. 57, 1155 (1995).
7.Abdel-Aziz, M.M. and Gwaily, S.E.: Thermal and mechanical properties of styrene-butadiene rubber/lead oxide composites as gamma-radiation shields. Polym. Degrad. Stab. 55, 269 (1997).
8.Khalid, M., Ismail, A.F., Ratnam, C.T., Faridah, Y., Rashmi, W., and Khatib, M.F.: Effect of radiation dose on the properties of natural rubber nanocomposite. Radiat. Phys. Chem. 79, 1279 (2010).
9.Liu, Y., Zhou, C., and Feng, S.: Effects of γ-ray radiation on the properties of fluorosilicone rubber. Mater. Lett. 78, 110 (2012).
10.Zeid, M.M.A.: Radiation effect on properties of carbon black filled NBR/EPDM rubber blends. Eur. Polym. J. 43, 4415 (2007).
11.Milena, M.C., Gordana, M., Suzana, S.J., Jaroslava, B.S., and Vojislav, J.: The influence of γ radiation on the properties of elastomers based on ethylene propylene diene terpolymer and chlorosulfonated polyethylene rubber. J. Thermoplast. Compos. Mater. 28, 1361 (2015).
12.Medhat, M.H., Khaled, F.E., and Anhar, A.A.E.: Effect of gamma radiation on physico-mechanical properties of vulcanized natural rubber/carbon fiber composites. J. Elastomers Plast. 48, 677 (2016).
13.Aliev, R.: Effect of dose rate and oxygen on radiation crosslinking of silica filled fluorosilicone rubber. Radiat. Phys. Chem. 56, 347 (1999).
14.Abdel-Aziz, M.M. and Basfar, A.A.: Aging of ethylene-propylene diene rubber (EPDM) vulcanized by γ-radiation. Polym. Test. 19, 591 (2000).
15.Scagliusi, S.R., Cardoso, E.L.C., and Lugao, A.B.: Effect of gamma radiation on chlorobutyl rubber vulcanized by three different crosslinking systems. Radiat. Phys. Chem. 81, 1370 (2012).
16.Cao, K., Ao, Y., Chen, J., Peng, J., Huang, W., Li, J., and Zhai, M.: Gamma radiation effect of polymethylvinylphenylsiloxane rubbers under different temperatures. J. Appl. Polym. Sci. 134, 45404 (2017).
17.Sui, H.L., Liu, X.Y., Zhong, F.C., Li, X.Y., Wang, L., and Ju, X.: Gamma radiation effects on polydimethylsiloxane rubber foams under different radiation conditions. Nucl. Instrum. Methods Phys. Res., Sect. B 307, 570 (2013).
18.Chen, H.B., Liu, B., Huang, W., and Wu, W.H.: Gamma radiation induced effects of compressed silicon foam. Polym. Degrad. Stab. 14, 89 (2015).

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