A fabric is a consolidation of fibers, both natural and manmade, in to a membrane. It can be both woven and non-woven. Cloths are typical examples of woven fabric. It will have generally both straight and cross fibers. Several different types of weaving patterns are used to get high density in terms of fiber counts. They may have coatings in addition to make them impervious. Cloths may be homogeneous depending on the type of fibers used in the construction. In contrast, materials like paper, felt, etc., are non-woven membranes, which contain randomly oriented fibers bound by fillers and binders. Films on the other hand are homogenous membranes. Simple examples are plastic films, metal foils, etc. Mechanical, physical, and chemical properties of both structural and nonstructural fabrics are important for application development. Typical structural properties of fabrics and films include tensile strength, tear strength, burst strength, abrasion resistance, etc. Physical properties include mainly air permeability, moisture and water vapor transmission, thermal conductivity, light transmission, static electricity, adhesion, etc. Chemical properties include chemical resistance, moisture resistance, etc. Other utility properties include radiation resistance like resistance to energetic and sub atomic matter radiations like that can be encountered at high altitude.
Capability – At TTL, we have capability and experience to test structural and nonstructural fabrics. Following tests are available. Additional tests can be developed based on customer needs.
Some relevant standards:
Touchstone is committed to providing its customers with quality, reliable test results. That is why we have undertaken the rigorous steps needed to meet and secure the most stringent of test lab accreditations including ISO/IEC 17025, NADCAP 7101 (Materials Test Lab) and NADCAP 7122-I (Non-Metallics Materials Testing).