Optimization of Surface Treatments for Improving Adhesion of UHMWPE Nonwoven Composite with Dissimilar Materials 


Vol. 24,  No. 4, pp. 1431-1440, Apr.  2023
10.1007/s12221-023-00126-7


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  Abstract

The ultra-high molecular weight polyethylene (UHMWPE) is one of the lightest weight polymeric material used for ballistic and blast protection. But the diffi culty arises when the prepegs of UHMWPE feebly bond with other dissimilar material during hybrid composite fabrication. The eff ect may be due to its lower surface energy. Many applications including ballistic require higher bond strength of UHMWPE with other dissimilar materials for better interface formation. Therefore, the present study is focused on to identify the suitable surface treatment to maximize the adhesion by minimizing the contact angle for prepeg of UHMWPE (Dyneema HB50). Two diff erent methods, i.e. plasma treatment and acid treatment along with their synergistic eff ect were studied using contact angle measurement techniques. The chromic acid was selected as chemical etchant and process parameters for plasma treatment were optimized for minimum contact angle measurement so that Dyneema HB50 may form stronger bonds with dissimilar materials during adhesion. This study was also validated by measuring adhesive shear strength of treated Dyneema HB50 composite with Kevlar composite as per ASTM D 5868. The attempt was also made for better understanding of interface through examining morphology using SEM and XPS for better understanding of interface through morphology. It was observed that wettability of plasma-treated Dyneema samples increased and the contact angle reduced signifi cantly more than acid treated samples, which is also validated by the shear strength of Dyneema밙evlar composite samples. The synergistic eff ect could not show better result than any of the solitary treatments.

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  Cite this article

[IEEE Style]

P. Bajpai, A. Kumar, A. Kumar, P. K. Dwivedi, "Optimization of Surface Treatments for Improving Adhesion of UHMWPE Nonwoven Composite with Dissimilar Materials," Fibers and Polymers, vol. 24, no. 4, pp. 1431-1440, 2023. DOI: 10.1007/s12221-023-00126-7.

[ACM Style]

Pragati Bajpai, Amit Kumar, Alok Kumar, and Prabhat K. Dwivedi. 2023. Optimization of Surface Treatments for Improving Adhesion of UHMWPE Nonwoven Composite with Dissimilar Materials. Fibers and Polymers, 24, 4, (2023), 1431-1440. DOI: 10.1007/s12221-023-00126-7.

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