Polymerization and Preparation of Functional Ophthalmic Material Containing Carbon Nanoparticles

Min-Jae L; A-Young Sung

Korean Journal of Materials Research, Vol.28, No.8, 452-458, August, 2018

DOI10.3740/MRSK.2018.28.8.452 Export Citation

Polymerization and Preparation of Functional Ophthalmic Material Containing Carbon Nanoparticles

Min-Jae L, and A-Young Sung^†

Department of Optometry & Vision Science, Catholic University of Daegu, Gyeoungsan, Gyeoungbuk, 38430, Republic of Korea

E-mail:

This research is conducted to create a functional hydrogel ophthalmic lens containing nanoparticles. Carbon nanoparticles and PEGMEMA are used as additives for the basic combination of HEMA, MA, and MMA, and the materials are copolymerized with EGDMA as the cross-linking agent and AIBN as the thermal initiator. The hydrogel lens is produced using a cast-mold method, and the materials are thermally polymerized at 100 °C for an hour. The polymerized lens sample is hydrated in a 0.9% saline solution for 24 hours before the optical and physical characteristics of the lens are measured. The refractive index, water content, contact angle, light transmittance, and tensile strength are measured to evaluate the physical and optical characteristics of the hydrogel lens. The refractive index, water content, contact angle, UV-B light transmittance, UVA light transmittance, visible light transmittance, tensile strength and breaking strength of the hydrogel lens polymer are 1.4019~1.4281, 43.05~51.18 %, 31.95~68.61°, 21.69~58.11 %, 35.59~84.26 %, 45.85~88.06 %, 0.1075~0.1649 kgf and 0.1520~0.2250 kgf, respectively. The results demonstrate an increase in refractive index, tensile strength and breaking strength and a decrease in contact angle and light transmittance. Furthermore, the visible light transmissibility is significantly increased at PEG 10 %. It is clear that this material can be used for high-performance ophthalmic lenses with wettability, ultraviolet ray blocking effect, and tensile strength.

Keywords:carbon nanoparticle;contact angle;optical transmittance;strength;ophthalmic lens

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[4] Youssef PN, Sheibani N, Albert DM, Retinal Light Toxicity Eye, 25, 1 (2011)

[5] Kuse Y, Ogawa K, Tsuruma K, Shimazawa M, Hara H, Sci. Rep., 4, 5223 (2014)

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[8] Pritchard N, Fonn D, Brazeau D, Int. Contact Lens Clin., 26, 157 (1999)

[9] Kim TH, Sung AY, J. Korean Chem. Soc., 54, 105 (2010)

[10] Cho SA, Kim TH, Sung AY, J. Korean Chem. Soc., 55, 283 (2011)

[11] Kim TH, Ye KH, Sung AY, J. Korean Chem. Soc., 53, 391 (2009)

[12] Kim TH, Sung AY, J. Korean Vis. Sci., 12, 199 (2010)

[13] Sung AY, Kim TH, Ye KH, J. Korean Chem. Soc., 55, 98 (2011)

[14] Kim TH, Cho SA, Sung AY, J. Korean Chem. Soc., 55, 308 (2011)

[15] Ye KH, Kim TH, Choi HS, Sung AY, J. Korean Chem. Soc., 53, 819 (2009)

[16] Kim TH, Sung AY, J. Korean Chem. Soc., 55, 723 (2011)

[17] Sung AY, Kim TH, Korean Chem. Eng. Res., 29, 686 (2012)

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[20] Wenzel RN, J. Phys. Colloid Chem., 53, 1466 (1949)

[21] Muller EA, Gubbins KE, Carbon, 36, 1433 (1988)

[22] Kim TH, Ye KH, Sung AY, J. Korean Chem. Soc., 53, 391 (2009)

[23] Kim TH, Sung AY, Korean J. Vis. Sci., 12, 199 (2010)

[24] Lee MJ, Sung AY, J. Nanosci. Nanotechnol., 17, 5505 (2017)

[25] Lee MJ, Sung AY, Kim TH, J. Korean Ophthalmic Opt. Soc., 19, 43 (2014)

[26] Kim DH, Sung AY, Kim TH, Korean J. Vis. Sci., 16, 89 (2014)