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November 13-15, 2017 | Las Vegas, USA
14
th
International Conference and Exhibition on
Materials Science and Engineering
RRJOMS | Volume 5 | Issue 7 | November, 2017
Thermal and humid influence on the interfacial aging of polyurethane coated polyketone fabrics
Jee-Woo Yang, Hani Jo, Hyeon Soo Lim
and
Seung Goo Lee
Chungnam National University, South Korea
T
his study analyzed the effect of heat and moisture on the polyketone-polyurethane coating system and proposed a predictable
relationship based on the analysis. Polyketone is an environmentally friendly material because it uses carbon monoxide as a raw
material and is inexpensive to produce. Also, it has excellent heat resistance, impact resistance, and chemical resistance, and thus is
highly applicable to industrial fabrics such as waterproof fabric. On the other hand, polyurethane is a coating material excellent in
abrasion resistance, weather resistance and oil resistance in addition to waterproofness. The waterproof properties of the waterproof
fabric depend on the occurrence of defects on the coated surface and the adhesion strength between the coating and the fabric.
The interfacial adhesion strength that can overcome external forces is determined by the bonding method and bonding force of the
lamination system, which affects the life of the waterproof fabric.
In order to improve the durability of the waterproof fabric, polyketone fabric was used instead of the polyester or nylon fabric used
in the past, and polyurethane generally used for waterproof coating was used. Environmental impacts, including temperature and
humidity, affect the polyketone-polyurethane coating system from the fabric surface. Therefore, the surface properties were observed
using SEM, and the hydrostatic head test of the fabric was used to determine the level of defect on the coated surface. Tensile and
adhesion strength were tested to determine the mechanical properties of the coated fabric. The chemical changes after aging were
qualitatively analyzed using FTIR, and the chemical changes of the polymer network by decomposition were measured from the
results of weight reduction. The degree of damage due to the degradation of the coated surface was confirmed by weight loss value
according to temperature, humidity and exposure time. The adhesion characteristics of polyketone - polyurethane coating system
according to exposure environment were evaluated from the peeling strength results. Also, the behavior of adhesive force could be
predicted.
In conclusion, we found that temperature, moisture, and exposure time affect the interfacial adhesion of polyketone-polyurethane
coating systems, and the interrelationships were partially confirmed by analyzing the results.
Biography
Jee-Woo Yang has her expertise in fiber reinforced composites. She is working on improving the bonding performance of reinforcing materials and matrix of fiber reinforced
composites. The results of the research on the thermal insulation properties of composite materials have been presented and the analysis model of aerogels also has been
presented by her.
jwyang@cnu.ac.krJee-Woo Yang et al., Res. Rev. J Mat. Sci. 2017, 5:7
DOI: 10.4172/2321-6212-C1-012