Study on Preparation of Triangular Melt-Spinning Poly (Vinyl Alcohol) Fibers and Its Fabric Strengthening and Toughening Epoxy

被引:6
作者
Zhou, Ting [1 ]
Wang, Meng [1 ]
Chen, Ning [1 ]
机构
[1] Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
关键词
triangular PVA fibers; melt spinning; hot drawing; toughing epoxy;
D O I
10.3390/polym13132204
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Fiber-reinforced epoxy materials have the advantages of light weight, high strength and designability, which are widely used in high-technology fields. In this paper, triangular poly (vinyl alcohol) (PVA) fibers prepared by melt spinning were used for the first time in reinforcing and toughening epoxy resins. Based on intermolecular complexation and plasticization, the triangular PVA fibers were successfully prepared via melt spinning and hot drawing. The thermal properties, crystallinity, morphology and mechanical properties of the triangular fibers with different draw ratios were characterized by DSC, FTIR, XRD, SEM and tensile testing. The results show that the comprehensive performance of the triangular fibers increased with the increase in the draw ratio. The tensile strength of triangular fibers increased from 0.3 to 4.22 cN/dtex. Then, the triangular PVA fiber and circular PVA fiber-reinforced and toughened epoxy materials were prepared, respectively. The mechanical properties of triangular PVA fiber/epoxy composites were higher than that of circular fiber-reinforced and toughened epoxy materials. Furthermore, the single-fiber pull-out test was used to analyze the interface capability of fibers and epoxy. The pull-out force of the circular fiber was 1.24 N, while that of the triangular fiber was 2.64 N. The specific surface area of the triangular PVA fiber was larger than that of the circular PVA fiber, which better made its contact with epoxy and was not easily pulled out. Experiments prove that triangular PVA fiber is an ideal material for strengthening and toughening epoxy resin.
引用
收藏
页数:11
相关论文
共 19 条
[1]   Study on PVA fiber surface modification for strain-hardening cementitious composites (PVA-SHCC) [J].
Arain, Muhammad Fahad ;
Wang Mingxue ;
Chen Jianyong ;
Zhang Huapeng .
CONSTRUCTION AND BUILDING MATERIALS, 2019, 197 :107-116
[2]   A flexible, cost-effective, and eco-friendly solid state supercapacitor based on PVA/KCl/Carbon black nanocomposite [J].
Beenarani, B. B. ;
Sugumaran, C. Pugazhendhi .
IONICS, 2020, 26 (03) :1465-1473
[3]   A Comparative Study on the Mechanical Properties of Jute and Sisal Fiber Reinforced Polymer Composites [J].
Boopalan, M. ;
Umapathy, M. J. ;
Jenyfer, P. .
SILICON, 2012, 4 (03) :145-149
[4]   New technology for thermal processing of poly(vinyl alcohol) [J].
Chen, N. ;
Li, L. ;
Wang, Q. .
PLASTICS RUBBER AND COMPOSITES, 2007, 36 (7-8) :283-290
[5]   Analysis of buckling load of glass fiber/epoxy-reinforced plywood and its temperature dependence [J].
Choi, Sung Woong ;
Li, Meixian ;
Lee, Woo Il ;
Kim, Han Sang .
JOURNAL OF COMPOSITE MATERIALS, 2014, 48 (18) :2191-2206
[6]   Wicking Performance of Profiled Fibre Part A: Assessment of Yarn [J].
Datta Roy M. ;
Chattopadhyay R. ;
Sinha S.K. .
Journal of The Institution of Engineers (India): Series E, 2017, 98 (02) :155-163
[7]   Effects of water on drawability, structure, and mechanical properties of poly(vinyl alcohol) melt-spun fibers [J].
Ding, Hengchun ;
Lin, Shuidong ;
Li, Li .
JOURNAL OF APPLIED POLYMER SCIENCE, 2017, 134 (42)
[8]   Preparation and characterisation of glass and cotton fibers reinforced epoxy hybrid composites [J].
Giridharan, R. ;
Jenarthanan, M. P. .
PIGMENT & RESIN TECHNOLOGY, 2019, 48 (04) :272-276
[9]   Evaluation of mechanical properties of e-glass and aloe vera fiber reinforced with polyester and epoxy resin matrices [J].
Jenarthanan, M. P. ;
Marappan, Karthikeyan ;
Giridharan, R. .
PIGMENT & RESIN TECHNOLOGY, 2019, 48 (03) :243-248
[10]  
Kim C, 2018, J IND ENG CHEM, V61, P112