Typical process of carbon black type antistatic and conductive fiber

Typical process of carbon black polyamide antistatic and conductive fiber

The preparation process of PAREL II carbon black conductive composite nylon 6 filament is as follows. Add 30% carbon black to nylon 6 to obtain a conductive component (A) with a resistivity of about 10Ω·cm and a melt viscosity of about 102Pa·s (280°C); 5% of matting agent is mixed with nylon 6 TiO2, a non-conductive component (B) with a melt viscosity of 60Pa·s (280℃) was obtained. Then, a composite conductive fiber with the conductive component (A) as the core layer and the non-conductive component (B) as the outer layer was prepared by composite spinning method, and stretched at high temperature (180°C). When carbon black accounts for 5% of the total fiber weight, conductive fibers with good electrical conductivity can be obtained.

Typical process of carbon black polyacrylonitrile antistatic and conductive fiber

The preparation process of SA-7 carbon black composite conductive acrylic staple fiber is as follows. The conductive oil furnace gas carbon black is mixed with the dimethyl sulfone solution of polyetherester grafted polyacrylonitrile copolymer at a ratio of 35%, mixed in a high-speed mixing device (uniform flow mixer), uniformly dispersed, Modulated into conductive component (A). 195.5 parts of acrylonitrile, 19.5 parts of methyl acrylate, 2.2 parts of sodium propylene sulfonate, 10.0 parts of water, 760 parts of dimethyl sulfone, 3.3 parts of azobisisobutyronitrile, the above system is subjected to copolymerization reaction to prepare non-conductive components Acrylonitrile-based polymer (B). After mixing and dispersing (A) in (B), wet spinning was performed and 5-fold stretching was performed. (A) and (B) belong to an incompatible system with a certain affinity, and (A) exists in (B) in the form of islands, so that the fibers have electrical conductivity. The SA-7 short fibers prepared by this method, although the amount of carbon black added is only 7% of the total fiber, but because the high concentration of carbon black is concentrated in the island phase, the fiber longitudinally forms a conductive path, so that the fiber has sufficient conductivity. sex.

Typical process of carbon black conductive viscose short fiber

The carbon black conductive viscose fiber can be produced by the pre-spinning injection method, that is, a dynamic mixer is installed on the spun viscose feeding pipeline, and the prepared carbon black conductive color paste mother liquor is uniformly and stably injected through the plunger pump according to the dosage requirements. In a dynamic mixer, the viscose and conductive color paste mother liquors are fully homogeneously mixed in the dynamic mixer, and then continuously sent to the spinning machine for spinning. Among them, viscose is composed of 8.7 ± 0.2)% of a fiber, contains (5.0 ± 0.1)% of alkali, viscosity (40 ± 5) s (falling ball viscosity), maturity (10. 0 ± 0. 5) mL (10% chlorine) ammonium chloride value), the amount of carbon black added in the viscose accounts for 30% of the content of the methyl fiber, the composition of the spinning acid bath: sulfuric acid (110 ± 2) g/L, zinc sulfate (13 ± 0.5) g/L sodium sulfate (345 g/L) Soil 5)g/L Temperature (50±1)C. Under this process condition, 1.67dtexX38mm conductive viscose short fiber can be produced.