Modification of low energy polymer surfaces by immobilization of fluorinated carboxylates with zirconium‐based coupling agents

Textor, Torsten; Schollmeyer, Hauke; Bahners, Thomas; Schollmeyer, Eckhard

doi:10.1002/app.20685

Cited by 7 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is done either with the obvious aim to change the wetting behavior with regard to water or oils, or to affect properties that are related to surface free energy and wettability, such as, e.g., adhesion phenomena, surface conductivity, adsorption of proteins, etc. An arbritary choice of representative examples of such studies can be found in [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

The Do's and Don'ts of Wettability Characterization in Textiles

Bahners

2011

Journal of Adhesion Science and Technology

Self Cite

View full text Add to dashboard Cite

Surface treatments introduce chemical modifications to the fiber surface that affect the surface free energy (SFE). This is done either with the obvious aim to change the wetting behavior, or to affect related properties, such as, e.g., adhesion phenomenon, surface conductivity, adsorption of proteins, etc. On planar substrates, the measurement of contact angles of specific liquids and making use of formalisms such as Neumann or Owens-Wendt equations is a commonly used approach to determine the surface free energy. It is to be observed that this direct approach is often and lightheartedly applied to porous and textured samples, such as textiles, too. The geometry of a textile is extremely complex and defined by the topography of the fiber, the construction of the yarn, and the construction of the fabric. In addition, polymer fibers may be porous and take up water from the environment. Accordingly, wetting is the result of simultaneous spreading on a rough surface, penetration, and capillary motion in the multi-porous system. Therefore, the critical consideration of any analytical method for wettability measurements cannot be overemphasized, and the present paper is meant to critically discuss the pros and cons of various methods common to the textile researcher.It can be summarized that contact angles can be useful for comparative measurements on hydrophobic samples, while the established drop penetration tests characterize the effects of fabric finishing, fiber surface modifications, etc. with limited quantification. By no means can these test be used to derive the SFE, and in all cases it is essential to avoid accidental distortions of the fabric. The single fiber micro-Wilhelmy method can be regarded as the only reliable method to obtain advancing and receding contact angles.

show abstract

Section: Introductionmentioning

confidence: 99%

The Do's and Don'ts of Wettability Characterization in Textiles

Bahners

2011

Journal of Adhesion Science and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Bahners et al first used the excimer UV lamp to modify synthetic polymers (Praschak et al, 2000) and then treated Nomex paper with a 222 nm excilamp (Textor et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Compared with the plasma and chemical technique, the excimer UV source is easier to handle and can reduce fiber damage. Bahners et al first used the excimer UV lamp to modify synthetic polymers (Praschak et al, 2000) and then treated Nomex paper with a 222 nm excilamp (Textor et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Nomex Fabric by a 172 nm Xe₂ ^* Excimer UV Lamp

Xie

Yang²,

Yan³

et al. 2010

Research Journal of Textile and Apparel

View full text Add to dashboard Cite

If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. ABSTRACTNomex fabric is irradiated by an Xe 2 * excimer UV lamp (172 nm). The influence of different irradiating times and atmospheres (nitrogen and air) on the properties of Nomex fabric has been studied. The results show that the wettability of Nomex fabrics greatly improves when irradiated for 2 minutes. The scanning electron microscope (SEM) photos denote that the surface of the irradiated Nomex fiber is etched and the degree of etching in nitrogen is more severe than that in air. The XPS measurement proves that the surface of the Nomex fibers, which is irradiated in nitrogen and in air, generates carboxyl and hydroxyl groups. The results also show that the adhesive strength of the Nomex/polyethylene composite is reinforced by the irradiation.

show abstract