A kind of permanent antistatic acrylonitrile-based copolymer and its fiber preparation method
An acrylonitrile-based copolymer fiber, acrylonitrile-based technology, used in the manufacture of conductive/antistatic filaments, fiber chemical characteristics, single-component synthetic polymer rayon, etc. The problem of electrostatic agent migration and precipitation can reduce the surface resistivity and improve the antistatic performance.
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Embodiment 1
[0029] (1) Preparation of permanent antistatic acrylonitrile-based copolymer
[0030] Pour 1 L of dimethylformamide into the reaction kettle, then add 3.75 mol of acrylonitrile monomer, 0.3 mol of methyl acrylate, 0.45 mol of polyethylene glycol methacrylate 400, 0.5 mol of 1-allyl-3 -Butylimidazolium hexafluorophosphate and 0.1mol azobisisobutyronitrile were mixed evenly and then poured into the reaction kettle, heated to 65°C while stirring, reacted for 10 hours after the temperature was constant, and then poured the reaction solution into 5L distilled water Precipitation, standing still, suction filtration, and vacuum drying at 85°C to obtain an acrylonitrile-based copolymer with a melting point of 215°C;
[0031] (2) Preparation of permanent antistatic acrylonitrile-based copolymer fibers
[0032] After mixing 100 parts by mass of acrylonitrile-based copolymers, 0.2 parts by mass of dilauryl thiodipropionate, 0.3 parts by mass of zinc stearate, and 1 part by mass of cellu...
Embodiment 2
[0034] (1) Preparation of permanent antistatic acrylonitrile-based copolymer
[0035] Pour 0.5L dimethylformamide and 0.5L dimethyl sulfoxide into the reaction kettle, then add 3.5mol acrylonitrile monomer, 0.5mol methyl acrylate, 0.5mol polyethylene glycol monomethyl ether methacrylate 400, 0.5mol of 1-allyl-3-butylimidazolium chloride salt and 0.1mol of azobisisobutyronitrile were mixed evenly and then poured into the reaction kettle, heated to 60°C while stirring, and reacted for 10 hours after the temperature was constant , then pour the reaction solution into 7L distilled water for precipitation, let stand, filter with suction, and dry in vacuum at 80°C to obtain an acrylonitrile-based copolymer with a melting point of 188°C;
[0036] (2) Preparation of permanent antistatic acrylonitrile-based copolymer fibers
[0037] 100 parts by mass of acrylonitrile-based copolymers, 0.2 parts by mass of spiroethylene glycol bis[2,2'-methylenebis(4,6-di-tert-butylphenyl)] phosphite, ...
Embodiment 3
[0039] (1) Preparation of permanent antistatic acrylonitrile-based copolymer
[0040] Pour 1L of dimethylformamide into the reaction kettle, and then add 3.75mol of acrylonitrile monomer, 0.5mol of methyl acrylate, 0.25mol of polyethylene glycol acrylate 400, and 0.5mol of 1-allyl-3-butane Mix imidazole tetrafluoroborate and 0.1mol azobisisobutyronitrile evenly and pour it into the reaction kettle, heat up to 65°C while stirring, react for 10 hours after the temperature is constant, then pour the reaction solution into 5L distilled water for precipitation , stand still, filter with suction, and dry under vacuum at 85°C to obtain an acrylonitrile-based copolymer with a melting point of 202°C;
[0041] (2) Preparation of permanent antistatic acrylonitrile-based copolymer fibers
[0042] 100 parts by mass of acrylonitrile-based copolymers, 0.1 parts by mass of spiroethylene glycol bis[2,2'-methylenebis(4,6-di-tert-butylphenyl)] phosphite, 0.2 parts by mass Zinc stearate, 1.2 pa...
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