Evaluation of Methods for improving the wetting of Fibers by the resin in Prepreg Manufacturing Process

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Abstract

Prepreg is a pre-engineered laminating material manufactured by impregnating a fiber-reinforcement with a resin. Wetting of fibers by the resin is one of the key parameters in prepreg manufacturing process, because of its contribution on the mechanical properties of the prepreg. It is worth mentioning that there are two main mechanisms for increasing the wetting of the fibers by the resin; the first one is through the formation of chemical bonds between the resin and fibers, and the second one is increasing the ability of resin to penetrate through the fibers and make mechanical entanglement between the resin and fibers. Various methods exist to achieve both these mechanisms, such as, surface modification of fibers, changing the resin formulation, increasing the contact time between resin and fibers, and reducing the viscosity of the resin. In this paper, advantages and disadvantages of the above-mentioned methods are evaluated. In general, it can be said that increasing the wetting of fibers by the resin alone cannot be considered as a target in prepreg manufacturing process, because in orderto improve the wetting of the fibers by the resin, there should be changes made in other conditions of the produced prepreg such as mechanical properties, final price, production time, etc..Therefore, finding the optimal values for the parameters like wetting of the fibers by the resin is essential.

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References

1.Beheshty M.H. and Heidary A.R., Science and Technology of Prepregs, Iran. J. Polym. Sci. Technol. (Persian), 4, 34-47, 1991.
2.Mazumdar S.K., Composites Manufacturing: Materials, Product, and Process Engineering, CRC, USA, 58-59, 2000.
3.Vafayan M., Beheshty M.H., Ghoreishy M.H.R., and Abedini H., Advanced Integral Isoconversional Analysis for Evaluating
and Predicting the Kinetic Parameters of the Curing Reactionof Epoxy Prepreg, Thermochim. Acta, 557, 37-43, 2013.
4.Shaghaghi S., Beheshty M.H., and Rahimi H., Preparation and Rheological Characterization of Phenolic/Glass Prepregs, Iran. Polym. J., 20, 969-977, 2011.
5.Lengsfeld H., Wolff-Fabris F., Krämer J., Lacalle J., and Altstädt V., Composite Technology, Carl Hanser Verlag, München, 36-38, 2015.
6.Liu J., Hwang D.G., and Chen J.C., Development of a TheoreticalModel for a Solvent-Type Prepreg Manufacturing Process,Compos. Sci. Technol., 51, 359-366, 1994.
7.Bonn D., Eggers J., Indekeu J., Meunier J., and Rolley E., Wetting and Spreading, Rev. Mod. Phys, 81, 740-805, 2009.
8.Zhong W.H., Sui G., Jana S., and Miller J., Cosmic Radiation Shielding Tests for UHMWPE Fiber/Nano-Epoxy Composites,
Compos. Sci. Technol., 69, 2093-2097, 2009.
9.Fu Y., Maguire R., Liu H., and Zhong W.H., Special Wetting Behavior of a Graphitic Nanofiber-Modified Epoxy Generalized
for Rough Textured Fabric Surfaces, Colloid. Polym. Sci.,289, 141-148, 2011.
10.Patel N.K., Micro Scale Flow Behavior, Fiber Wetting and Void Formation in Liquid Composite Molding, PhD Thesis, Ohio State University, 1994.
11.Montes-Moran M.A., Martinez-Alonso A., and Tascon J.M., Effects of Plasma Oxidation on The Surface and Interfacial Properties of Ultra-High Modulus Carbon Fibres, Composites Part A, 32, 361-366, 2001.
12.Boudou J.P., Paredes J.I., Cuesta A., and Martinez-Alonso A., Oxygen Plasma Modification of Pitch-Based Isotropic Carbon Fibres, Carbon, 41, 41-48, 2003.
13.Ren Y., Wang C., and Qiu Y., Influence of Aramid Fiber MoistureRegain During Atmospheric Plasma Treatment on Aging
of Treatment Effects on Surface Wettability and Bonding Strength To Epoxy, Appl. Surf. Sci., 253, 9283–9289, 2007.
14.Fukunaga A. and Ueda S., Anodic Surface Oxidation for Pitchbased Carbon Fibers and The Interfacial Bond Strengths in Epoxy Matrices, Compos. Sci. Technol., 60, 249-259, 2000.
15.Cao H., Huang Y., Zhang Z., and Sun J., Uniform Modificationof Carbon Fibers Surface in 3-D Fabrics Using Intermittent
Electrochemical Treatment, Compos. Sci. Technol., 65, 1655-1667, 2005.
16.Severini F., Formaro L., Pegoraro M., and Posca L., Chemical Modification of Carbon Fiber Surfaces, Carbon, 40, 735-743, 2002.
17.Xu Z., Huang Y., Zhang C., and Chen G., Influence of Rare Earth Treatment on Interfacial Properties of Carbon Fiber/Epoxy Composites, Mater. Sci. Eng., A, 444, 170–177, 2007.
18.Pamula E. and Rouxhet P.G., Bulk and Surface Chemical Functionalities of Type III PAN-Based Carbon Fibres, Carbon,
41, 1905-1913, 2003.
19.Wang S., Chen Z.H., Ma W.J., and Ma Q.S., Influence of Heat Treatment on Physical Chemical Properties of PAN-Based Carbon Fiber, Ceram. Int., 32, 291-299, 2006.
20.Lee W.H., Lee J.G., and Reucroft P.J., XPS Study of Carbon Fiber Surfaces Treated by Thermal Oxidation in a Gas Mixtureof O2/(O2+N2), Appl. Surf. Sci., 171, 136-143, 2001.
21.Dai Z., Zhang B., Shi F., Li M., Zhang Z., and Gu Y., Effect of Heat Treatment on Carbon Fiber Surface Properties and Fibers/Epoxy Interfacial Adhesion, Appl. Surf. Sci., 257, 8457-8461, 2011.
22.Xu Z., Chen L., Huang Y., Li J., Wu X., Li X., and Jiao Y., Wettability of Carbon Fibers Modified by Acrylic Acid and Interface Properties of Carbon Fiber/Epoxy, Eur. Polym. J., 44, 494–503, 2008.
23.Fu Y., Liu H., and Zhong W.H., Wetting Characteristics of EpoxyResins Modified by Graphitic Nanofibers with Different Functional Groups, Colloids Surf., A, 369, 196-202, 2010.
24.Neema S., Salehi-Khojin A., Zhamu A., Zhong W.H., Jana S., and Gan Y.X., Wettability of Nano-Epoxies to UHMWPE Fibers,J. Colloid Interface Sci., 299, 332-341, 2006.
25.Hameed N., Thomas S.P., Abraham R., and Thomas S., Morphologyand Contact Angle Studies of Poly(Styrene-Co-Acrylonitrile)Modified Epoxy Resin Blends and Their Glass Fibre Reinforced Composites, eXpress Polym. Lett., 1, 345–355, 2007.
26.Jing C., Zhao X., and Tao H., An Approach to Predict the Solid Film Thickness Possibly Yielded from an Alumina Sol-Gel Liquid Film, Surf. Coat. Technol., 201, 2655-2661, 2006.
27.Krechetnikov R. and Homsy G.M., Experimental Study of Substrate Roughness and Surfactant Effects on the Landau-Levich Law, Phys. Fluids, 17, 102108-1-102108-16, 2005.
28.Catauro M., Papale F., and Bollino F., Characterization and Biological Properties of TiO2/PCL Hybrid Layers Prepared Via Sol–Gel Dip Coating for Surface Modification of TitaniumImplants, J. Noncryst. Solids, 415, 9-15, 2015.
29.Hayes B.S. and Seferis J.C., The Effect of Fabric Tension and the Number of Impregnation Rollers on Woven Fabric Prepreg Quality and Cured Laminates, Composites, 28, 791-799, 1997.
30.Augustsson C., Epoxy Handbook, Nils Malmgrem AB, Sweden,11-12, 2004.
31.Ma S., Liu X., Fan L., Jiang Y., Cao L., Tang Z., and Zhu J., Synthesis and Properties of a Bio-based Epoxy Resin with High Epoxy Value and Low Viscosity, ChemSusChem, 7, 555-562, 2014.
32.http://www.sigmaaldrich.com.

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