Synthesis and Performance of PEEK/Nap-PAEK Modified WMCNTs Composites†

doi:10.7503/cjcu20180123

Abstract

Abstract:

A kind of poly(aryl ether ketone) containing naphthalene(Nap-PAEK) was prepared and coated on the surface of multi walled carbon nanotube(MWCNTs) fillers as surface modifier. A series of PEEK/MWCNTs composites was prepared by physical blending of the MWCNTs coated with Nap-PAEK and poly(ether ether ketone)(PEEK) resin, and the thermal and mechanical properties of the composites were also investigated. The results show that Nap-PAEK can improve the dispersion of MWCNTs in N-methyl-2-pyrrolidone(NMP) solution and PEEK matrix effectively due to the strong π-π interaction between Nap-PAEK and MWCNTs. After surface modified by Nap-PAEK, the dispersion capacity of MWCNTs in NMP increased about 10 times. With the addition of only 2%(mass fraction) WMCNTs, PEEK/Nap-PAEK-MWCNTs composite shows the tensile strength increased by 14.5% and the elongation increased by 116.7% compared to those of pure PEEK, realizing the simultaneous reinforcing and toughening of PEEK resin. After the addition of modified MWCNTs, the thermal stability of PEEK was also improved.

Key words: Multi walled carbon nanotube, Composite, Poly(aryl ether ketone) containing naphthalene, Poly(ether ether ketone)

CLC Number:

O631

TrendMD:

LIN Li,CHEN Zheng,SHANG Yingshuang,WANG Zhaoyang,GAO Yanwei,JIANG Zhenhua,ZHANG Haibo. Synthesis and Performance of PEEK/Nap-PAEK Modified WMCNTs Composites^†[J]. Chem. J. Chinese Universities, 2018, 39(10): 2343.

Figures/Tables 9

Scheme 1 Synthetic route of Nap-PAEK

Fig.1 DSC(A) and TGA(B) curves of Nap-PAEK

Fig.2 Standard curve of MWNTs in NMP

Fig.3 Dispersion of carbon nanotubes by different polymers obtained by Lambert’s law

Fig.4 Raman spectra of MWCNTs(a) and Nap-PAEK/MWCNTs(b)

Fig.5 UV absorption spectra of MWCNTs with different mass ratio of Nap-PAEK

Fig.6 DSC(A) and TGA(B) curves for composite materials(A) a. Nap-PAEK; b. PEEK; c. 10%Nap-PAEK/PEEK; d. M-MWCNTs. (B) a. 3%M-MWCNTs/PEEK;b. 6%M-MWCNTs/PEEK; c. 12%M-MWCNTs/PEEK; d. PEEK.

Table 1 Mechanical properties for the polymers

Sample	Young’s modulus/GPa	Tensile strength/MPa	Elongation at break(%)	Flexural modulus/GPa	Bending strength/MPa
PEEK	1.83	94.0	24.6	3.68	127.8
M-MWCNT-0.5/PEEK	1.92	99.2	29.6	3.83	135.7
M-MWCNT-1/PEEK	2.12	102.6	26.7	3.87	146.2
M-MWCNT-2/PEEK	1.93	107.6	53.3	4.05	148.4
10%Nap-PAEK/PEEK	2.41	100.3	44.4	3.91	144.7
MWCNT-2/10%PPSU/PEEK	1.90	100.0	12.5	4.06	140.9

Fig.7 SEM images of elongation at break of composite materials(A) 3%M-MWCNTs/97% PEEK; (B) 6%M-MWCNTs/94% PEEK; (C) 12%M-MWCNTs/88%PEEK; (D) 1%MWCNTs/99%PEEK.

References 20

[1]	Li Y.W., New Chemical Materials, 2009, 3, 37—40
	(李跃文. 化工新型材料, 2009, 3, 37—40)
[2]	Sun J.Z., Qin A., Tang B. Z., Polym. Chem., 2013, 4(2), 211—223
[3]	Sgobba V., Guldi D.M., Chem. Soc. Rev., 2009, 38(1), 84—165
[4]	Popov V., Materials Science and Engineering,Reports, 2004, 43(3), 61—102
[5]	Baughman R.H., Zakhidov A. A., de Heer W. A., Science, 2002, 297(5582), 787—792
[6]	Lijima S., Nature, 1991, 354(6348), 56—58
[7]	Mohiuddin M., Hoa S.V., Composites Science and Technology, 2011, 72(1), 21—27
[8]	Cao L., Deng S., Lin Z., Polymer, 2016, 8(2), 50
[9]	Rinaldi M., Puglia D., Dominici F., Cherubini V., Torre L., Nanni F., Polymer International, 2017, 66(12), 1731—1736
[10]	Xiong Z.Y., Zhang B. Y., Wang W. J., Guo Z. X., Yu J., Chem. J. Chinese Universities, 2015, 36(8), 1641—1647
	(熊卓越, 张博媛, 汪唯佳, 郭朝霞, 于建. 高等学校化学学报, 2015, 36(8), 1641—1647)
[11]	Zhang B. Y., Guo Z. X., Yu J., Chem. J. Chinese Universities, 2016, 37(6), 1216—1223
	(张博媛, 郭朝霞, 于建. 高等学校化学学报, 2016, 37(6) 1216—1223)
[12]	Sakellariou G., Priftis D., Baskaran D., Chem. Soc. Rev., 2013, 42(2), 677—704
[13]	Bilalis P., Katsigiannopoulos D., Avgeropoulos A., Sakellariou G., RSC Adv., 2014, 4(6), 2911—2934
[14]	Wang Y.P., Liu M. Z., Liu T., Lu D. Y., Sun Y., Zhang H. B., Jiang Z. H., Composites Science and Technology, 2017, 143, 82—88
[15]	Wang Y.P., Liu M. Z., Zhang Y. X., Lin Y. J., Shang Y. S., Zhu X. B., Zhang H. B., Jiang Z. H., Chem. J. Chinese Universities, 2014, 35(5), 1086—1092
	(王永鹏, 刘梦竹, 张宇轩, 林英健, 商赢双, 朱轩伯, 张海波, 姜振华. 高等学校化学学报, 2014, 35(5), 1086—1092)
[16]	Li L., Xian W., Han Y., Zhang H., Jiang Z., Zheng C., Journal of Applied Polymer Science, 2018, 135(20), 46250
[17]	Ohon M., Journal of Polymer Science Part A: Polymer Chemistry, 1995, 33, 2647—2655
[18]	GB/T 9341-2008, Plastics-Determination of Flexural Properties, General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China,Standardization Administration of the People’s Republic of China, 2008
	(GB/T 9341-2008, 塑料弯曲性能的测定试验方案, 中国国家标准化管理委员会, 中华人民共和国国家质量监督检验检疫总局, 2008)
[19]	Parviz D., Das S., Irin F., Green Micah J., ACS Nano, 2013, 6(10), 8857—8867
[20]	Ghasemi E.E., Omidkhah M., EbadiAmooghin A., ACS Appl. Mater.Interfaces, 2017, 9(11), 10094—10105