Tear behavior of polyester‐based coated textiles after thermo‐oxidative aging

Abstract

In this article, a new method to characterize the tear behavior of coated textiles using fracture mechanics is proposed. The energy dissipated in tearing (EDT) of as‐received and thermally aged samples of polyester fabric, polyvinyl acetate rubber coating, and textile‐coating composites was calculated and compared. The EDT of the coated fabric displayed a slightly smaller value than the fabric alone, whereas the EDT of the coating was found to be negligible when compared with the other two. The presence of the coating is believed to have a detrimental effect on the tearing behavior of the coated fabric as it hinders interfilament slippage. A master curve of EDT retention vs. aging time for noncoated and coated fabric samples was constructed using the time–temperature superposition principle and fitted using the Hill equation. Fourier transform infrared analyses carried out on aged fabric samples hinted at a possible chain scission process, whereas the crystallinity of fabric samples, calculated via differential scanning calorimetry, was found to decrease after thermal aging. Scanning electron microscopy images revealed an increase in surface roughness after aging that may reduce interfilament friction. These results, coupled to an increase in the adhesion strength between fabric and coating, are likely the cause of the reduction of EDT noticed in aged coated and noncoated fabrics compared with as‐received ones. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers

Investigation of the changes in physical properties of PES/PVC fabrics after aging

“…The process of artificial aging was simulated based on standards LST EN 1297:2003, LST EN 1296:2004, and ISO 9142:2003, experimentation of other researchers, and geographic location. Geographic, latitudinal, and other atmospheric variations will contribute to variability of natural sunlight.…”

“…After 10 cycles, which actually corresponds to 10 calendar weeks, the 11th cycle was conducted in which, according to the literature review, the aging temperature was changed: step (1) was keep on temperature + 105°C 48 h, step (2) was immersed on room temperature water 48 h and step (3) was keep on cold temperature −18°C incubator 24h.…”

“…It has been determined that the resistance of PVC cavity materials and their mechanical properties varies within the range of errors after various effects. When exposed to temperature, the plasticizer (softener) is removed from the coating, and scanning electron microscopy analysis shows that the aging process degrades the surface of the tent . Meanwhile, Yang et al .…”

Combined puncture and cutting of elastomer membranes: A fracture energy approach

“…These earlier studies only reported qualitative results in terms of force and impact energy and did not provide a fundamental understanding of the mechanisms controlling the puncture/cutting process. Furthermore, several fundamental studies have dealt with puncture, tearing, or cutting of protective materials . Nguyen et al .…”

Review on penetration and transport phenomena in porous media during slot die coating

“…In addition, coated layers have been shown to provide protective or functional properties for papers, such as resistance to grease, moisture, ultraviolent radiation, pollutant gasses, mold, and bacteria . In the textile and clothing industry, coating has been widely used to reinforce the fabrics or provide other special functions and properties. For example, phase‐change materials or silicon carbide coatings have been shown to provide thermal insulation for sporting clothes to maintain a suitable temperature for the human body .…”