Effects of Oil-impregnation on Structure and Property of Surface-Roughened BOPP Films

YAO Cheng, CAI Xi-peng, LIU Gang, JIA Lei, WANG Peng, WANG Kai, CAI Han-sheng, GAO De-min

PDF(2076 KB)
PDF(2076 KB)
Plastics Science and Technology ›› 2024, Vol. 52 ›› Issue (04) : 43-48. DOI: 10.15925/j.cnki.issn1005-3360.2024.04.009
Theory and Research

Effects of Oil-impregnation on Structure and Property of Surface-Roughened BOPP Films

Author information +
History +

Abstract

In this study, the structure and properties of two surface-roughened films of biaxially oriented polypropylene (BOPP) before and after oil immersion were investigated. The roughening morphology of BOPP was characterized by optical microscopy, the crystal structure and crystallographic behavior were inspected by DSC and WAXD, and the orientation structure was evaluated by polarized infrared technology. The tensile mechanics, thermal oxidation stability and breakdown strength of the films were tested. The results show that the crystal structure of BOPP films prepared by two kinds of polypropylene with different chain characteristics does not change significantly before and after oil immersion. The orientation parameters θ j and fj suggest that the orientation of the amorphous chains is decreased by oil immersion. In addition, the oil immersion improved the breakdown strength of the film. For example, the breakdown strengths of the high tacticity and narrow distribution films are 737 V/μm (before oil immersion) and 863 V/μm (after oil immersion). These results indicate that soaking in the insulating oil medium for a long time, the orientation relaxation in the amorphous region can eliminate the structural defects caused by internal stress and increase the breakdown strength of BOPP films.

Key words

Surface-roughened film for capacitor / Crystallization / Orientation / Amorphous phase / Breakdown strength

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations
YAO Cheng , CAI Xi-peng , LIU Gang , et al . Effects of Oil-impregnation on Structure and Property of Surface-Roughened BOPP Films. Plastics Science and Technology. 2024, 52(04): 43-48 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.04.009

References

List( Publishing order | Descend order by publishing year | Descend order by cited within ) Chart analysis
1
RITAMKI M, RYTLUOTO I, LAHTI K. Performance metrics for a modern BOPP capacitor film[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2019, 26: 1229-1237.
本文引用 [1]
2
RYTÖLUOTO I, GITSAS A, PASANEN S, et al. Effect of film structure and morphology on the dielectric breakdown characteristics of cast and biaxially oriented polypropylene films[J]. European Polymer Journal, 2017, 95: 606-624.
本文引用 [1]
3
HO J S, GREENBAUM S G. Polymer capacitor dielectrics for high temperature applications[J]. ACS Applied Materials & Interfaces, 2018, 10: 29189-29218.
本文引用 [1]
4
KAHOULI A, GALLOT-LAVALLÉE O, RAIN P, et al. Structure effect of thin film polypropylene view by dielectric spectroscopy and X-ray diffraction: Application to dry type power capacitors[J]. Journal of Applied Polymer Science, 2015, DOI: 10.1002/app.42602.
本文引用 [1]
5
PRATEEK, THAKUR V K, GUPTA R K. Recent progress on ferroelectric polymer-based nanocomposites for high energy density capacitors: Synthesis, dielectric properties, and future aspects[J]. Chemical Reviews, 2016, 116: 4260-4317.
本文引用 [1]
6
UMRAN H M, WANG F P, HE Y S. Ageing: Causes and effects on the reliability of polypropylene film used for hvdc capacitor[J]. IEEE ACCESS, 2020, 8: 40413-40430.
本文引用 [1]
7
DAI X Y, XING Z L, YANG W, et al. The effect of annealing on the structure and electric performance of polypropylene films[J]. International Journal of Polymer Science, 2022, DOI: 10.1155/2022/5970484.
8
LI Z L, DAI F M, WU Y, et al. Effect of crystalline morphology on electrical tree morphology and growth characteristics of PP insulation: From mesoscopic to macroscopic[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2023, 30: 989-996.
9
KAHOULI A, GALLOT-LAVALLÉE O, RAIN P, et al. Dielectric features of two grades of bi-oriented isotactic polypropylene[J]. Journal of Applied Polymer Science, 2015, DOI: 10.1002/app.42224.
本文引用 [1]
10
ZHANG C S, REN C H, FENG Y, et al. Evolution characteristics of DC breakdown for biaxially oriented polypropylene films[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2023, 30: 1188-1196.
本文引用 [1]
11
XIONG J, WANG X, ZHANG X, et al. How the biaxially stretching mode influence dielectric and energy storage properties of polypropylene films[J]. Journal of Applied Polymer Science, 2021, DOI: 10.1002/app.50029.
本文引用 [1]
12
CAPT L, RETTENBERGER S, MUNSTEDT H, et al. Simultaneous biaxial stretching of polypropylene resins of varying tacticity part Ⅱ: Film morphology and properties[J]. International Polymer Processing, 2022, 20: 369-379.
本文引用 [1]
13
WU T, WANG K, CHEN X F, et al. Practicing the concept of "structuring" processing in the manufacture of polymer films[J]. Science China Chemistry, 2023, 66: 993-1010.
本文引用 [1]
14
TABATABAEI S H, CARREAU P J, AJJI A. Effect of processing on the crystalline orientation, morphology, and mechanical properties of polypropylene cast films and microporous membrane formation[J]. Polymer, 2009, 50: 4228-4240.
本文引用 [1]
15
MANI M R, CHELLASWAMY R, MARATHE Y N, et al. New understanding on regulating the crystallization and morphology of the β-polymorph of isotactic polypropylene based on carboxylate-alumoxane nucleating agents[J]. Macromolecules, 2016, 49: 2197-2205.
本文引用 [1]
16
GAJZLEROVA L, NAVRATILOVA J, ZENZINGEROVA S, et al. On isotactic polypropylene annealing: Difference in final properties of neat and β-nucleated polypropylene[J]. Express Polymer Letters, 2022, 16: 453-464.
本文引用 [1]
17
LIU L Y, ZHAO Y, ZHANG C B, et al. Morphological characteristics of beta-nucleating agents governing the formation of the crystalline structure of isotactic polypropylene[J]. Macromolecules, 2021, 54: 6824-6834.
本文引用 [1]
18
CAELERS H, DE COCK A, LOOIJMANS S, et al. An experimentally validated model for quiescent multiphase primary and secondary crystallization phenomena in PP with low content of ethylene comonomer[J]. Polymer, 2022, DOI: 10.1016/j.polymer.2022.124901.
本文引用 [1]
19
WANG Y X, CHEN S P, WU T, et al. Yielding behavior of isotactic polypropylene at elevated temperature understood at the spherulite level[J]. Polymer, 2023, DOI: 10.1016/j.polymer.2023.126150.
本文引用 [1]
20
WU T, XIANG M, CAO Y, et al. Influence of lamellar structure on double yield behavior and pore size distribution in β nucleated polypropylene stretched membranes[J]. RSC Advances, 2014, 4: 43012-43023.
本文引用 [1]
21
ZHANG D X, DING L, YANG F, et al. Structural evolution of β-iPP with different supermolecular structures during the simultaneous biaxial stretching process[J]. Polymer Journal, 2021, 53: 331-344.
本文引用 [1]
22
CHEN Q, WANG Z W, ZHANG S M, et al. Structure evolution and deformation behavior of polyethylene film during biaxial stretching[J]. ACS Omega, 2020, 5: 655-666.
本文引用 [1]
23
QIAN C A, ZHAO Y, WANG Z F, et al. Probing the difference of crystalline modifications and structural disorder of isotactic polypropylene via high-resolution FTIR spectroscopy[J]. Polymer, 2021, DOI: 10.1016/j.polymer.2021.123722.
本文引用 [1]
24
DI LISIO V, STURABOTTI E, FRANCOLINI I, et al. Isotactic polypropylene reversible crystallization investigated by modulated temperature and quasi-isothermal FTIR[J]. Journal of Polymer Science Part B: Polymer Physics, 2019, 57: 922-931.
25
K-HNITTA, SAWADA T, YOSHIDA S, et al. Three dimensional molecular orientation of isotactic polypropylene films under biaxial deformation at higher temperatures[J]. Polymer, 2015, 74: 30-37.
本文引用 [2]
26
CHEN X Y, XIANG D, ZHOU Z X, et al. Biaxial stretching of polymer nanocomposites: A mini-review[J]. Frontiers in Materials, 2021, DOI: 10.3389/fmats.2021.725422.
本文引用 [1]
27
PAWLAK A, KRAJENTA J, GALESKI A. The crystallization of polypropylene with reduced density of entanglements[J]. Journal of Polymer Science Part B: Polymer Physics, 2017, 55: 748-756.
本文引用 [1]

Comments

PDF(2076 KB)

Accesses

Citation

Detail
Sections
Recommended
Copyright © Plastics Science and Technology, All Rights Reserved.
Powered by Beijing Magtech Co. Ltd.

/

〈 〉