A continuous production process for silver metal firmly attached to aromatic special fiber filaments
A special fiber and production process technology, applied in the direction of metal material coating process, fiber treatment, fiber type, etc., can solve the problems of damage to aramid fiber strength, fiber strength damage, lack of adhesion, etc., to improve bond fastness and Friction resistance, less loss of mechanical properties, and the effect of maintaining the original strength
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Embodiment 1
[0014]The specific steps are as follows. All processes are carried out on the automatic line according to the set sub-slot length, set speed, and fixed parameters. The aromatic fiber is Yantai Taihe New Material 500D aramid 1414 fiber. The process and parameters are as follows: 1 1. Alkaline cleaning: Pass the aromatic special fiber through 10% sodium hydroxide solution, add ultrasonic vibration (time 2 minutes, temperature 60°C); 2. Three overflow washing with pure water: wash 3 times with ultrapure water, a total of 1 3. Coarsening: 80% concentrated sulfuric acid, add 40g / L WN-LL213 expansion agent, (temperature 40°C, time 30 seconds) supplemented by mechanical vibration, amplitude 3.5cm, vibration frequency 200 times / min, in order to achieve the formation of longitudinal micro-cracks in each fiber filament without breaking the fiber. 4. Three overflows of pure water: cleaning with ultrapure water for 3 times, for 1 minute in total, with ultrasonic oscillation; Microscopic ...
Embodiment 2
[0017] The specific steps are as follows. All processes are carried out on the automatic line according to the set sub-slot length, set speed, and fixed parameters. The fiber passing process and parameters are as follows: 1. Alkaline cleaning: chemical Chenguang 400d PBO fiber is passed through hydrogen Sodium oxide 10% solution, add ultrasonic vibration, (time 2 minutes, temperature 60 ℃). 2. Three overflows of pure water: wash with ultrapure water for 3 times for a total of 1 minute, and add ultrasonic oscillation. 3. Coarsening: 80% concentrated sulfuric acid, add 40g / L WN-LL213 expansion agent, (temperature 30°C, time 30 seconds) supplemented by mechanical vibration, amplitude 3.5cm, vibration frequency 200 times / min, with Under the premise that the fiber is not broken, each fiber filament forms a longitudinal micro-crack. 4. Three overflows of pure water: cleaning with ultrapure water for 3 times, for 1 minute in total, with ultrasonic oscillation; Microscopic modificat...
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