Atmospheric plasma application to improve adhesion of electrospun nanofibers onto protective fabric

Abstract

Nylon 6 electrospun nanofibers were deposited on plasma-pretreated woven fabric substrates with the objective of improving adhesion between them. The prepared samples were evaluated for adhesion strength and durability of nanofiber mats by carrying out peel strength, flex resistance, and abrasion resistance tests. The test results showed significant improvement in the adhesion of nanofiber mats on woven fabric substrates due to atmospheric plasma pretreatment. The samples also exhibited good flex and abrasion resistance characteristics. X-ray photoelectron spectroscopy and water contact angle analyses indicate that plasma pretreatment introduces radicals, increases the oxygen content on the substrate surface, and leads to formation of active chemical sites that may be responsible for enhanced cross-linking between the substrate fabric and the electrospun nanofibers, which in turn increases the adhesion properties. The work demonstrates that the plasma treatment of the substrate fabric prior to deposition of electrospun nanofiber mats is a promising method to prepare durable functional materials.

Durable nanocomposite adhesives based on polyacrylates and surface-modified colloidal silica

“…[12,13] Nowadays, the precise tuning of the adhesion properties is of great interest for a number of applications, especially when one deals with weak durable adhesion. [14,15] Nanocomposite acrylic adhesives based on colloidal silica (CS) have many advantages such as durable property because of their three-dimensional stability and physical bonding between CS and acrylic adhesive. [16,17] The adhesion of nanocomposite, however, is too low for most usual applications due to its limit on dispersion in organic materials.…”

Coaxial Electrospinning with Mixed Solvents: From Flat to Round Eudragit L100 Nanofibers for Better Colon‐Targeted Sustained Drug Release Profiles

“…The physical properties, such as shape, size, mechanical properties, surface texture, and compartmentalization, profoundly impact the function of a nanobiomaterial and thus raise important questions for the design of its next generation [1]. Electrospinning is a facile method for generating fibers at micro-/nanoscale [2][3][4][5][6][7]. Often, electrospun nanofibers of some typical pharmaceutical polymers (such as cellulose acetate, Eudragit series, and zein) exhibit a flat morphology, which is undesired for providing sustained drug release profiles because the flat morphology aggravates the initial burst release effect and results in a shorter time sustained release [8][9][10].…”