Test Background
Tensile creep performance refers to the phenomenon that the deformation of a material gradually increases with time under the action of a certain temperature and constant stress. Characterize the dimensional stability of reinforced materials under constant load. The tensile test of highly reinforced fiber filaments can determine the breaking strength, elongation at break, initial modulus and tensile creep properties of highly reinforced fiber filaments.
Zhongke Testing Reliability Experiment Center has reliability testing capabilities for various textiles and provides professional tensile testing services for high-strength fiber filaments.
Scope of tests
is suitable for ultra-high molecular weight polyethylene fiber, aromatic polyamide fiber (aramid), carbon fiber and other high-strength chemical fiber filaments (generally refers to filaments with a breaking strength greater than 10 cN/dtex).
Test method
Breaking strength, initial modulus: Stretch the sample until it breaks, and obtain the breaking strength and elongation. Calculate the breaking strength from the breaking strength and linear density; at the same time, obtain the slope of the tangent line on the stress-strain (strong elongation) curve that is initially close to a straight line, and calculate the initial modulus from this slope and linear density.
Tensile creep: Apply pre-tension to the sample to obtain the initial length, then apply a certain load for a certain period of time (or when the length of the sample no longer changes), measure the length of the sample again, and calculate the difference between the two lengths (ie, creep elongation) and the percentage of the initial length, which is the tensile creep elongation.
Test standard:
GB/T 19975-2005 Test method for tensile properties of highly reinforced fiber filaments
ASTM D 885-2001 Test methods for chemical fiber industrial yarns, fabrics and ropes processed from organic fibers
ISO 2062: 1972 Textiles - Packaged yarns - Test methods for breaking load and elongation at break of single yarns》
GB/T 3291.1 Textile material properties and test terminology Part 1: Fibers and yarns
GB/T 3291.3 Textile material properties and test terminology Part 3: General
GB/T 4146 Textile terminology (chemical fiber part)
GB/T 6502 Synthetic fiber filament sampling method
GB 6529 Standard atmosphere for humidity conditioning and testing of textiles
GB/T 8170 Numerical Rounding Rules
GB/T 14343 Test method for linear density of synthetic fiber filaments and textured yarns
