Use a polyurethane sizing agent to improve the interfacial properties of carbon fiber-reinforced polyurethane composites

LI Sheng-xia; YANG Chang-ling; YAO Li-li; WU Bo; LU Yong-gen

doi:10.1016/S1872-5805(23)60705-X

Volume 38 Issue 2

Apr. 2023

Turn off MathJax

Article Contents

Article Navigation > New Carbon Mater. > 2023 > 38(2): 385-392

LI Sheng-xia, YANG Chang-ling, YAO Li-li, WU Bo, LU Yong-gen. Use a polyurethane sizing agent to improve the interfacial properties of carbon fiber-reinforced polyurethane composites. New Carbon Mater., 2023, 38(2): 385-392. doi: 10.1016/S1872-5805(23)60705-X

Citation:

LI Sheng-xia, YANG Chang-ling, YAO Li-li, WU Bo, LU Yong-gen. Use a polyurethane sizing agent to improve the interfacial properties of carbon fiber-reinforced polyurethane composites. New Carbon Mater., 2023, 38(2): 385-392. doi: 10.1016/S1872-5805(23)60705-X

Citation:

LI Sheng-xia, YANG Chang-ling, YAO Li-li, WU Bo, LU Yong-gen. Use a polyurethane sizing agent to improve the interfacial properties of carbon fiber-reinforced polyurethane composites. New Carbon Mater., 2023, 38(2): 385-392. doi: 10.1016/S1872-5805(23)60705-X

PDF( 854 KB)

Use a polyurethane sizing agent to improve the interfacial properties of carbon fiber-reinforced polyurethane composites

doi: 10.1016/S1872-5805(23)60705-X

LI Sheng-xia^{1, 2
,},
YANG Chang-ling^{1, 2
,
,},
YAO Li-li^{1, 2},
WU Bo^{1, 2},
LU Yong-gen^{1, 2
,
,}

1.
College of Chemical, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, China
2.
College of Material Science and Engineering, Donghua University, Shanghai 201620, China

Funds: This work was supported by the National Natural Science Foundation of China (51672042)

More Information

Author Bio:
李胜霞，硕士研究生. E-mail：lsx2132@163.com
Corresponding author: YANG Chang-ling, Associate Professor. E-mail: yangcl@dhu.edu.cn; LU Yong-gen, Professor. E-mail: yglu@dhu.edu.cn
Received Date: 2020-02-08
Rev Recd Date: 2020-05-30

Available Online: 2022-11-03

Publish Date: 2023-04-07

Abstract

Abstract

An anodized carbon fiber tow was continuously sized using aqueous polyurethane to improve the interfacial properties of carbon fiber-reinforced polyurethane composites. These were investigated by interlaminar shear strength (ILSS) tests, elemental and functional group analysis, thermal gravimetric analysis, and differential scanning calorimetry. Results show that the polyurethane sizing agent significantly improves the interfacial properties of the composites. The ILSS of the sized carbon fiber-reinforced composite is increased by 17.5% (from 39.5 to 46.4 MPa) compared to that of the oxidized carbon fiber-reinforced counterpart. Treating the sized carbon fiber-reinforced composite at 170 °C further increased the ILSS by 9.5% to 50.8 MPa. It is considered that the sizing agent interacts with oxygen-containing functional groups on the oxidized carbon fiber surface to form hydrogen bonds with the resin matrix. Upon heating at 170 °C, blocking groups in the sizing agent are unblocked to expose the isocyanate roots that react with the carbamate of the matrix to generate allophanate. It is concluded that a polyurethane sizing agent is suitable for improving the interfacial properties of carbon fiber-reinforced polyurethane resin composites, and that heating after curing further improves these properties.
- Carbon fiber,
- Polyurethane,
- Sizing agent,
- Heat treatment,
- Composites

FullText(HTML)

References(14)

References

[1]	Xiao L, Zhao H, Wang L, et al. Composite Material[M]. Chemical Industry Press, 2016: 102-104.
[2]	Wong C S, Hassan N I, Su Ait M S, et al. Photo-activated self-healing bio-based polyurethanes[J]. Industrial Crops and Products,2019,140:111613. doi: 10.1016/j.indcrop.2019.111613
[3]	Zhang Z, Song H, Men X, et al. Effect of carbon fibers surface treatment on tribological performance of polyurethane (PU) composite coating[J]. Wear,2008,264(7-8):599-605. doi: 10.1016/j.wear.2007.05.003
[4]	Zhang B. Research on the application of polyurethane in sports protective equipment[J]. Adhesion,2019:35-37.
[5]	Sharma M, Gao S, Mäder E, et al. Carbon fiber surfaces and composite interphases[J]. Composites Science and Technology,2014,102:35-50. doi: 10.1016/j.compscitech.2014.07.005
[6]	Park S, Seo M, Lee J. Roles of interfaces between carbon fibers and epoxy matrix on interlaminar fracture toughness of composites[J]. Composite Interfaces, 2006, 13(2-3).
[7]	Ma R, Li W, Huang M, et al. Enhancing strength and toughness of carbon fibers reinforced rigid polyurethane composites with low fiber content[J]. Polymer Testing,2018,71:156-162. doi: 10.1016/j.polymertesting.2018.08.030
[8]	Qiao W, Tian Y, Zhang X. Electrochemical oxidation surface treatment process of domestic polyacrylonitrile-based high-strength high-modulus carbon fiber[J]. Journal of Composite Materials,2018,35(09):2449-2457.
[9]	Hang C, Qian H, Xu N, et al. Study on the effect of sizing agent components on the apparent performance of carbon fiber[J]. Composites Science and Engineering(Chinese),2019(07):60-64.
[10]	Ma R, Li W, Huang M, et al. The reinforcing effects of dendritic short carbon fibers for rigid polyurethane composites[J]. Composites Science and Technology,2019,170:128-134. doi: 10.1016/j.compscitech.2018.11.047
[11]	Zhang Y, Zhang Y, Liu Y, et al. A novel surface modification of carbon fiber for high-performance thermoplastic polyurethane composites[J]. Applied Surface Science,2016,382:144-154. doi: 10.1016/j.apsusc.2016.04.118
[12]	Zhao Y, Li Q, Wang J, et al. Properties of carbon fiber / polyether polyurethane composites[J]. New Carbon Materials,2014,29(06):454-460.
[13]	Jiang S, Li Q, Zhao Y, et al. Effect of surface silanization of carbon fiber on mechanical properties of carbon fiber reinforced polyurethane composites[J]. Composites Science and Technology,2015,110:87-94. doi: 10.1016/j.compscitech.2015.01.022
[14]	Gnädinger F, Middendorf P, Fox B. Interfacial shear strength studies of experimental carbon fibres, novel thermosetting polyurethane and epoxy matrices and bespoke sizing agents[J]. Composites Science and Technology,2016,133:104-110. doi: 10.1016/j.compscitech.2016.07.029