热拉伸对尼龙6薄膜微观结构与力学性能的影响

doi:10.11896/cldb.19120228

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Abstract The effect of the hot stretching process on the microstructure and mechanical properties of nylon 6 (PA6) films was studied. The PA6 films were treated by uniaxial hot stretching in the temperature range of glass transition temperature (T_g) and melting point (T_m), and microstructure and mechanical properties of the films were characterized. The results show that with the increasing of the tensile temperature and the tensile ratio, the degree of transformation from β crystal form to α crystal form in PA6 was increasing, which promotes the crystallization and orientation of the molecular chain in PA6 along the stretched direction, thus significantly improved the crystallization degree of PA6. Moreover, it is found that the amorphous region decreased and the glass transition temperature (T_g) increased. The increase of tensile temperature is beneficial to the growth of α crystal plane in PA6, and the more complete α crystal is formed at high temperatures. With the increase of the tensile ratio, the integrity degree of α crystal increased at first and then decreased. After hot stretching, the tensile strength and storage modulus of PA6 films increased, yet the elongation at break decreased. Compared with unstretched PA6 films, the tensile strength of PA6 films at the tensile temperature of 160 ℃ and the tensile ratio of 3 was increased by 371%, and the elongation at break decreased by 235%.

Key words： nylon 6 films hot stretching

Published: 23 March 2021

CLC number:

TQ316

Fund:National Natural Science Foundation of China (11872179), the Natural Science Foundation of Hunan Province (2018JJ4072), the Open Fund for Innovation Platform of Colleges and Universities of Hunan Province (18K079), the Scientific Research Project of Hunan Provincial Department of Education (18B288, 19A138).

About author:: Yi Liu, graduated from Hunan University of Technology in June 2020 with a master's degree in engineering, and mainly engaged in the study of the tensile and rheological properties of the nylon films
Yuejun Liu, Ph.D., professor, Ph.D. supervisor, is now working at the School of Packaging and Materials Engineering, Hunan University of Technology, and mainly engaging in the research of polymer processing, polymer rheology and packaging materials.
Xianggang Li, Ph.D., lecturer, is now working at the Department of Polymer Materials and Engineering, Hunan University of Technology, and mainly engaging in the research of polymer rheology, polymer materials, and polymer processing.

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	LIU Yi
	LIU Yuejun
	LI Xianggang
	CUI Lingna
	LIU Xiaochao
	LI Zhanghua
	FAN Shuhong

Cite this article:

LIU Yi,LIU Yuejun,LI Xianggang, et al. Effect of Hot Stretching on Microstructure and Mechanical Properties of Nylon 6 Films[J]. Materials Reports, 2021, 35(6): 6194-6199.

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http://www.mater-rep.com/EN/10.11896/cldb.19120228 OR http://www.mater-rep.com/EN/Y2021/V35/I6/6194

1 Li Y, Goddard W A. Macromolecules,2002,35(22),8440.
2 Jarrar R, Mohsin M A, Haik Y. Journal of Applied Polymer Science,2012,124(3),1880.
3 Santamaría P, Eguiazabal J I. Polymers for Advanced Technologies,2013,24(3),300.
4 Parodi E, Peters G W M, Govaert L E. Polymers,2018,10(7),710.
5 Kotek R, Jung D, Tonelli A E, et al. Journal of Macromolecular Science Part C,2005,45(3),201.
6 Barth T. 11-Biaxially stretched polyamide film, Woodhead Publishing Limited, Germany,2011.
7 Seif S, Cakmak M. Polymer,2010,51(16),3762.
8 Yalcin B, Valladares D, Cakmak M. Polymer,2003,44(22),6913.
9 Murthy N S, Bray R G, Correale S T, et al. Polymer,1995,36(20),3863.
10 Atkins E D T, Hill M, Hong S K, et al. Macromolecules,1992,25(2),917.
11 Kinoshita Y. Macromolecular Chemistry and Physics,1959,33(1),1.
12 Wang Z, Ma Z, Li L. Macromolecules,2016,49(5),1505.
13 Fornes T D, Paul D R. Polymer,2003,44(14),3945.
14 Miri V, Elkoun S, Peurton F, et al. Macromolecules,2008,41(23),9234.
15 Stepaniak R F, Garton A, Carlsson D J, et al. Journal of Polymer Science Polymer Physics Edition,1979,17(6),987.
16 Pralay M, Masami O. Macromolecular Materials & Engineering,2003,288(5),440.
17 Arimoto H, Ishibashi M, Hirai M, et al. Journal of Polymer Science Part A: General Papers,1965,3(1),317.
18 Cavallo D, Gardella L, Alfonso G C, et al. Colloid and Polymer Science,2011,289(9),1073.
19 Mileva D, Androsch R, Zhuravlev E, et al. Polymer,2012,53(18),3994.
20 Ziabicki A. Colloid and Polymer Science,1959,167(2),132.
21 Holmes D R, Bunn C W, Smith D J. Journal of Polymer Science,1955,17(84),159.
22 Androsch R, Stolp M, Radusch H J. Acta Polymerica,1996,47(2-3),99.
23 Penel-Pierron L, Depecker C, Séguéla R, et al. Journal of Polymer Science Part B: Polymer Physics,2001,39(5),484.
24 Xu J R, Ren X K, Yang T, et al. Macromolecules,2017,51(1),137.
25 Hoashi K, Andrews R D. Journal of Polymer Science Polymer Symposia,1972,38(1),387.
26 Penel-Pierron L, Séguéla R, Lefebvre J M, et al. Journal of Polymer Science Part B Polymer Physics,2001,39(11),1224.
27 Ito M, Mizuochi K, Kanamoto T. Polymer,1998,39(19),4593.
28 Ziabicki A, Kedzierska K. Journal of Applied Polymer Science,1959,2(4),14.
29 Franco L, Cooper S J, Atkins E D T, et al. Journal of Polymer Science, Part B (Polymer Physics),1998,36(7),1153.
30 Bell J P, Murayama T. Journal of Polymer Science Part B Polymer Phy-sics,1969,7(6),1059.
31 Bessell T J, Hull D, Shortall J B. Journal of Materials Science,1975,10(7),1127.
32 Wang S Q. Nonlinear polymer rheology, Wiley, USA,2018.
33 Kohlrausch R. Annalen Der Physik,1854,167(2),179.
34 Williams G, Watts D C. Transactions of the Faraday Society,1970,66,80.
35 Murthy N, Minor H, Latif R. Journal of Macromolecular Science, Part B: Physics,1987,26(4),427.
36 Pepin J, Miri V, Lefebvre J M. Macromolecules,2016,49(2),5643.
37 Wunderlich B. Macromolecular Physics, Academic Press, USA,1980.
38 Jones N A, Atkins E D T, Hill M J, et al. Polymer,1997,38(11),2689.
39 Ferreiro V, Depecker C, Laureyns J, et al. Polymer,2004,45(17),6013.
40 Gurato G, Fichera A, Grandi F Z, et al. Macromolecular Chemistry & Physics,1974,175(3),953.
41 Ishak Z A M, Berry J P. Journal of Applied Polymer Science,1994,51(13),2145.
42 Ding H Q, Xiao L Q, Zhou W L, et al. Applied Mechanics and Materials,2013,376,125.
43 Howard W S, Moore G E, Hansen J E, et al. Journal of Polymer Science,1956,21(98),189.