A test device and test method 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 shell, a lifting mechanism, a clamper and an electronic control system. A mechanism for dissolving fiber components other than fiber components and a fixing unit with a clamping unit. Test method: 1. Select the composite fiber; 2. Fix the composite fiber; 3. Put the fixed composite fiber into the container to heat and dissolve, and keep the fiber to be tested; 4. Measure the tensile properties of the composite fiber; 5. Collect data. The test device and test method for the tensile properties of a single component in the composite fiber of the present invention, the test device can firstly realize the dissolution of other fiber components in the composite fiber except the fiber to be tested, and secondly, can stretch the superfine fiber Performance testing, during the test, the superfine fiber is conveniently and securely clamped, and it is not easy to cause the superfine fiber 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 and a testing method 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 deerskin, etc. [0003] Determination of performance indicators of synthetic leather,...

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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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