Bending-resistant carbon fiber electromagnetic shielding material and production method thereof
A technology of electromagnetic shielding materials and production methods, applied in shielding materials, magnetic field/electric field shielding, fiber chemical characteristics, etc., can solve problems such as carbon fiber breakage, burrs on the cross section, user injury, etc., and achieve good durability and comfort , light weight, good strength effect
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Embodiment 1
[0031] Such as figure 1 As shown, a bending-resistant carbon fiber electromagnetic shielding material includes: a plurality of interconnected carbon fiber rings 1, and each carbon fiber ring is provided with an opening 2; the opening is used to connect the carbon fiber rings to each other conveniently.
[0032] The carbon fiber rings are connected in series to form a line. Similar to the structure of a chain, carbon fiber rings are connected in series to form a chain, while one carbon fiber ring is connected in series with three or more carbon fiber rings to form a planar shape. A plurality of carbon fiber rings connected in series can be used for further processing into cloth and the like.
[0033] The carbon fiber ring is circular.
[0034] The diameter of the single carbon fiber ring is between 2-4mm. The more carbon fiber rings per unit area, the better the electromagnetic shielding effect.
[0035] The carbon fiber electromagnetic shielding material can be sewn or com...
Embodiment 2
[0037] A method for producing a bending-resistant carbon fiber electromagnetic shielding material. The raw silk used to produce the carbon fiber ring is shaped into a ring shape before pre-oxidation, and the opening is cut out, including the following steps:
[0038] S1. The raw wire used to produce carbon fiber rings is spirally wound along a fixed rod, and after pre-oxidation and carbonization treatment, the spirally wound carbonized raw wire is cut along the shaped rod to form a plurality of ring-shaped carbonized rings ;
[0039] S2. Remove the carbonized ring from the shaping rod, and use mechanical or manual methods to connect the carbonized ring in series into a linear or planar shape;
[0040] S3. Surface treatment and sizing: The surface treatment and sizing make the carbonized ring a carbon fiber ring with excellent characteristics. After sizing, the burrs on the measuring section of the opening are wrapped to avoid discomfort during use.
[0041] S4. Subsequent pro...
Embodiment 3
[0046] Such as figure 2 As shown, similar to Example 2, the difference is that when the helically wound carbonized precursor is cut along the shaping bar, instead of cutting a slit, a gap 2' with a certain width is cut. The width of the gap is It gradually increases from the inside to the outside, and the width of the gap is slightly larger than the diameter of the carbonized precursor before the S3 treatment, and slightly smaller than the diameter of the carbonized precursor after the S3 treatment.
[0047] A gap with a certain width makes it easier to insert one carbonized ring into another carbonized ring. After S3 surface treatment and sizing, the two sections of the gap become thicker, the width of the gap decreases, and the diameter of the carbon fiber ring increases. Carbon fiber It is difficult for the ring to pass through the gap, which effectively prevents the carbon fiber rings connected in series from getting loose.
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