Collagen is the most abundant protein in the human body. It exists in the human heart, eyeball, blood vessels, skin, cartilage and bone pathways, and provides strength support for these human tissues. The synthetic nanofibers can form a gel-like gel at the fracture site, guiding bone minerals to form a Silicon Nitride Parts structural arrangement similar to natural bone around the collagen fibers, repairing the bone invisibly.
Spider silk has always been imitated by humans. The diameter of natural spider silk is about 4 microns, and its traction strength is 5 times that of steel. It also has better waterproof and stretchable functions. If a kind of artificial spider silk with the characteristics of natural spider silk is made, it will have a wide range of uses. Not only could it be an ideal material for parachutes and car seat belts, but it could also be used as a surgical suture that is easily absorbed by the body.
The tensile property test of textile fibers is an important part of fiber quality inspection. Textile fibers will be deformed or even destroyed by various external forces during processing and use. The Silicon Nitride Parts wearability of textiles is closely related. Master the test method of single fiber tensile properties, understand the structure and principle of electronic single fiber strength tester, and process and analyze the test results of samples. Adopted standard: GB 9997 "Determination of breaking strength and breaking elongation of chemical fiber single fiber", GB/T 14337 "Test method for breaking strength and breaking elongation of synthetic short fiber"
Relevant standards: GB/T 14334 "Sampling Method for Synthetic Short Fibers", GB/T 14335 "Test Method for Linear Density of Synthetic Short Fibers", GB 6529 "Standard Atmosphere for Debugging and Testing of Textiles", etc. 4 Instruments and Utensils LLY-06 Type Electronic single fiber strength tester, see Figure 1.
Black velvet board, tweezers, balance. Principle One end of the single fiber to be tested is held by the upper gripper, and the other end is clamped by the lower gripper after applying the pre-tension specified by the standard. During the test, the lower gripper pulls the specimen at a constant speed, and the downward displacement of the lower gripper is the elongation of the fiber. The tensile force received by Silicon Nitride Parts the sample is converted into an electrical signal through the sensor connected to the upper gripper, and after being amplified by the amplifier and converted by the A/D converter, the microcomputer calculates the force of the fiber during the stretching process. The schematic diagram is shown in Figure 2. 6 Sampling
Take out laboratory samples according to GB/T 14334.
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2022 04/01