A testing device for the tensile properties of a single component in a composite fiber

Abstract

The invention discloses a test device for the tensile performance of a single component in a composite fiber, which includes an organic casing, a lifting mechanism, a clamper and an electronic control system, and the clamper includes an upper handle clamp fixed with the casing A holder and a lower handle holder driven by a lifting mechanism, the upper handle holder is provided with a stress sensor, and the test device also includes a method for dissolving other fibers in the composite fiber except for the fiber components to be tested. Dissolution treatment mechanism of components, said dissolution treatment mechanism includes a container and a fixed assembly, a test device for the tensile performance of a single component in the composite fiber of the present invention, and the test device can first realize other components of the composite fiber except the fiber to be tested. The dissolution of fiber components, and secondly, the tensile properties of ultrafine fibers can be measured. During the test, the ultrafine fibers are conveniently and securely clamped, and it is not easy to cause the ultrafine fibers to bend or fall off, and the measurement accuracy is high.

Description

technical field [0001] The invention relates to the technical field of measuring the tensile properties of composite fibers, in particular to a testing device for the tensile properties of a single component in composite fibers. Background technique [0002] Composite fiber is a kind of multi-component fiber. There are two or more polymer fibers that are not mixed on the same fiber section. This fiber is called composite fiber. The composite fiber manufacturing technology can obtain both Two-component fibers with polymer properties, including side-by-side, skin-core, and island-in-the-sea composite fibers. Among them, the island-in-the-sea fiber has the characteristics of fineness and softness, which is more flexible and durable than collagen fibers in natural leather. Non-toxic and easy to maintain, it is mainly used in the manufacture of synthetic leather, artificial leather, etc. [0003] Determination of performance indicators of synthetic leather, the main indicators a...

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Problems solved by technology

[0004] In the sea-island fiber, the "island" and "sea" components are continuous, dense, and evenly distributed in the axial direction of the fiber. It has the size of a conventional fiber. Using a specific solvent to dissolve the "sea" fiber component, you can get Bunch-like "island" fiber components, and the monofilament fineness of "island" fiber components is generally about 0.05D, which belongs to ultrafine fibers. The existing tensile performance testing equipment cannot meet the single component of sea-island fibers in composite fibers. Tensile performance test, firstly, the fiber to be tested in the composite fiber cannot be separated, and secondly, due to the clamping of the ultra-fine fiber, the firmness is not enough, and the ultra-fine fiber is prone to appear. The fiber bends or falls off, and accurate test data cannot be obtained. Therefore, a new device for testing the tensile properties of a single component in composite fibers is needed to meet the market demand in the technical field of tensile properties testing equipment

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