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Open AccessArticle

Effects of Different Roller Profiles on the Microstructure and Peel Strength of the Ultrasonic Welding Joints of Nonwoven Fabrics

1
Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam
2
Viet Nam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
3
Faculty of Mechanical Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh 700000, Vietnam
4
Science-Technology and International Cooperation Depart ment, Sao Do University, Hai Duong 03000, Vietnam
5
Research and Development Department, Murata Welding Laboratory, Osaka 5320012, Japan
6
School of Mechanical Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(12), 4101; https://doi.org/10.3390/app10124101
Received: 14 April 2020 / Revised: 1 June 2020 / Accepted: 11 June 2020 / Published: 14 June 2020
(This article belongs to the Section Mechanical Engineering)
Nonwoven fabrics are widely used in the textile manufacturing industry due to their advanced characteristics, such as their soft, water-repellent, recycle, ecological, and resilient functions. Nowadays, one of the innovated technologies applied to bond nonwoven fabrics is the ultrasonic welding method, due to the advantages afforded by its clean, fast, and reliable approach. In this work, isotactic polypropylene (PP) nonwoven fabrics were bonded by a continuous ultrasonic welding process. In order to consider the influence of the roller on the formation of welding joints and their mechanical properties, different roller profiles were designed, fabricated, and tested. Eight types of roller profiles corresponding to No. 1–No. 8 in the experiments were divided into four groups. After bonding, the microstructure in a typical case (i.e., No. 1) was captured by scanning electron microscopy (SEM) to examine the formation of the welding joints. Additionally, the load and the peel strength of the welding joints of all eight roller profiles were analyzed. The results showed that no welding defects, such as cracks or blowholes, were visible in the melted zone. The load depended on the area ratio(s) of the welding area (S0) to the cycling area (S1). Furthermore, it was found out that the peel strength of the welding joints with brick structures were higher than the peel strength in the case of solid line structures. View Full-Text
Keywords: roller; ultrasonic welding; nonwoven fabric; microstructure; peel strength roller; ultrasonic welding; nonwoven fabric; microstructure; peel strength
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MDPI and ACS Style

Nguyen, T.-h.; Thanh, L.Q.; Loc, N.H.; Huu, M.N.; Nguyen Van, A. Effects of Different Roller Profiles on the Microstructure and Peel Strength of the Ultrasonic Welding Joints of Nonwoven Fabrics. Appl. Sci. 2020, 10, 4101. https://doi.org/10.3390/app10124101

AMA Style

Nguyen T-h, Thanh LQ, Loc NH, Huu MN, Nguyen Van A. Effects of Different Roller Profiles on the Microstructure and Peel Strength of the Ultrasonic Welding Joints of Nonwoven Fabrics. Applied Sciences. 2020; 10(12):4101. https://doi.org/10.3390/app10124101

Chicago/Turabian Style

Nguyen, Thanh-hai; Thanh, Le Q.; Loc, Nguyen H.; Huu, Manh N.; Nguyen Van, Anh. 2020. "Effects of Different Roller Profiles on the Microstructure and Peel Strength of the Ultrasonic Welding Joints of Nonwoven Fabrics" Appl. Sci. 10, no. 12: 4101. https://doi.org/10.3390/app10124101

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