Method for testing interfacial strength of textile fabric fibers

Abstract

The invention discloses a method for testing the interfacial strength of textile fibers, and belongs to the technical field of textile fabrics. Fibers are packaged in an upper sealing colloid, a plurality of lower sealing colloids matched with the fibers in number are arranged, the plurality of lower sealing colloids are limited in a limiting clamp, the other ends of the fibers are packaged in the lower sealing colloids, and resin pouring packaging is utilized, so that the fibers are convenient to fix, and a good fixing effect is achieved. During testing, the multiple fibers move upwards along with the upper sealing colloid, after a trigger mechanism between the lower sealing colloids and the limiting clamp is triggered, displacement sensors are started with the trigger as a signal, the multiple displacement sensors conduct independent displacement measurement on the multiple fibers, and when any fiber is broken in the pulling process, the lower sealing colloid located at the lower end of the fiber falls down, at the moment, a lower contact piece and an upper contact piece at the position are disconnected, and the displacement sensor corresponding to the position stops displacement counting and stores the displacement amount at the moment. The maximum tensile displacement amount can be recorded when a pull test is carried out on multiple fibers synchronously and tested, and the testing efficiency is high.

Description

technical field [0001] The invention relates to the technical field of textile fabrics, in particular to a method for testing the interface strength of textile fabric fibers. Background technique [0002] Textile fiber refers to a material with certain fineness, length, strength and elasticity, which can be used to manufacture textiles. In the prior art, textile equipment is used to weave fiber threads into fabrics. Before using textile fibers, it is necessary to test the tensile strength of textile fibers to find unqualified products in time to ensure that the produced textile fabrics can reach qualified quality. [0003] Among the research methods of interfacial mechanical properties, the critical fracture length method, single fiber pull-out method, micro-debonding method and ejection method are mostly used, among which the single-filament pull-out test is the most direct, simple and effective method. The basic principle is to fix one end of the monofilament, and then ap...

AI Technical Summary

Problems solved by technology

However, due to the small size of the fiber, its clamping and fixing effect needs to be improved during the testing process. If the clamping is easy to slip during the tensile test process, it will affect the measurement results; Only one monofilament is tested at a time, and the axial height needs to be recorded in time when the monofilament is pulled out. It is difficult to test multiple monofilaments at the same time, the test efficiency is low, and it is difficult to form a sharp contrast effect

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