Antistatic and flame retardant copolyester fiber and preparation method thereof

Abstract

The invention belongs to the technical field of polymer materials, and relates to an antistatic and flame retardant copolyester fiber and a preparation method thereof. The copolyester fiber comprises the following components by weight: 100 parts of polybutylene terephthalate / polybutylene adipate, 1-5 parts of polyethylene glycol, 0.2-1.3 parts of an antistatic agent, 2-10 parts of a phosphorus based flame retardant and 0.1-4 parts of inorganic nano powder. The antistatic and flame retardant copolyester fiber has the strength no less than 2.58cN / dtex and the elongation at about 30%, is soft in hand feeling and good in antistatic property, flame retardant properties and mechanical properties, and has the widespread application prospect.

Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and relates to a polyester fiber and a preparation method thereof. Background technique

[0002] Polyester fiber is currently the largest synthetic fiber in the world, with excellent comprehensive properties and broad application prospects, but polyester fiber is a hydrophobic fiber, and its volume resistivity under standard conditions reaches 10 13 More than Ω·cm, it is easy to generate static electricity, and it is a flammable fiber. These reasons limit the application field of polyester fiber.

[0003] Japanese patent JP47-36459 relates to a kind of fiber obtained by adding fatty alcohol polyoxyethylene phosphate in polyester resin, although its antistatic property has long-lasting type, the effect is not good. Chinese patent 20110071051.X discloses a method for preparing a flame-retardant and anti-droplet copolyester fiber, in which inorganic clay is dispersed into nano-sized sheet...

Examples

Embodiment 1

[0046] (1) Vacuum dry polybutylene terephthalate / adipate and polyethylene glycol (molecular weight: 5000) respectively, and the moisture content is less than 200ppm;

[0047] (2) Dry 100 parts of polybutylene terephthalate / adipate, 1 part of polyethylene glycol, 0.2 parts of sodium dodecylbenzenesulfonate, 2 parts of 2-hydroxy Ethylphenylphosphoric acid and 0.1 part of silicon dioxide are blended for 3 minutes, and then enter the twin-screw extruder through the hopper 1 successively, melt and extrude under the action of the screw 2, enter the casing 3 of the spinning assembly through the melt pipeline, and pass Metering by the metering pump 4, followed by extrusion from the spinneret 5, cooling by the cooling zone 6, oiling by the cluster oiling device 7, pre-drawing and winding by the winding roller 8, to obtain a copolymer with uniform structure and controllable fineness Ester fiber. Among them, the spinning temperature is 250°C, the spinning speed is 800m / min; the fiber st...

Embodiment 2

[0051] (1) Vacuum dry polybutylene terephthalate / adipate and polyethylene glycol (molecular weight: 10,000), and the water content is less than 200ppm;

[0052](2) Dry 100 parts of polybutylene terephthalate / adipate, 2 parts of polyethylene glycol, 0.8 parts of sodium pentadecylsulfonate, 5 parts of 2-hydroxyethylene Methyl phosphate and 1 part of calcium carbonate were blended for 5 minutes, and entered into the twin-screw extruder through the hopper 1 successively, melted and extruded under the action of the screw 2, and then entered the casing 3 of the spinning assembly through the melt pipeline, and passed The metering pump 4 measures, and is extruded by the spinneret 5, cooled by the cooling zone 6, oiled by the cluster oiling device 7, and pre-drawn and wound by the winding roller 8 to obtain a degradable material with uniform structure and controllable fineness. Polyester. Wherein, the spinning temperature is 260° C., and the spinning speed is 1000 m / min. Its fiber st...

Embodiment 3

[0056] (1) Extrude 50 parts of polybutylene terephthalate / adipate, 3 parts of polyethylene glycol (molecular weight 15000), 4 parts of 2-hydroxyethyl methyl phosphoric acid and 2 parts of barium sulfate through twin-screw extrusion Extrude and granulate to obtain polyethylene glycol / polyethylene terephthalic acid / butylene adipate blend, and the processing temperature is 140°C;

[0057] (2) 50 parts of polybutylene terephthalic acid / butylene adipate and the polyethylene glycol / polybutylene terephthalic acid / butylene adipate blend obtained in step (1) were vacuum-dried to remove moisture Less than 200ppm. Take 50 parts of polybutylene terephthalate / adipate and polyethylene glycol / polybutylene terephthalate adipate blend, 1.0 parts of sodium dodecylbenzene sulfonate after drying Blending for 8 minutes, enter the twin-screw extruder through the hopper 1 in turn, melt and extrude under the action of the screw 2, enter the box 3 of the spinning assembly through the melt pipeline, m...

technical field

[0001] The invention belongs to the technical field of polymer materials, and relates to a polyester fiber and a preparation method thereof. Background technique

[0002] Polyester fiber is currently the largest synthetic fiber in the world, with excellent comprehensive properties and broad application prospects, but polyester fiber is a hydrophobic fiber, and its volume resistivity under standard conditions reaches 10 13 More than Ω·cm, it is easy to generate static electricity, and it is a flammable fiber. These reasons limit the application field of polyester fiber.

[0003] Japanese patent JP47-36459 relates to a kind of fiber obtained by adding fatty alcohol polyoxyethylene phosphate in polyester resin, although its antistatic property has long-lasting type, the effect is not good. Chinese patent 20110071051.X discloses a method for preparing a flame-retardant and anti-droplet copolyester fiber, in which inorganic clay is dispersed into nano-sized sheet...

Examples

Embodiment 1

[0046] (1) Vacuum dry polybutylene terephthalate / adipate and polyethylene glycol (molecular weight: 5000) respectively, and the moisture content is less than 200ppm;

[0047] (2) Dry 100 parts of polybutylene terephthalate / adipate, 1 part of polyethylene glycol, 0.2 parts of sodium dodecylbenzenesulfonate, 2 parts of 2-hydroxy Ethylphenylphosphoric acid and 0.1 part of silicon dioxide are blended for 3 minutes, and then enter the twin-screw extruder through the hopper 1 successively, melt and extrude under the action of the screw 2, enter the casing 3 of the spinning assembly through the melt pipeline, and pass Metering by the metering pump 4, followed by extrusion from the spinneret 5, cooling by the cooling zone 6, oiling by the cluster oiling device 7, pre-drawing and winding by the winding roller 8, to obtain a copolymer with uniform structure and controllable fineness Ester fiber. Among them, the spinning temperature is 250°C, the spinning speed is 800m / min; the fiber st...

Embodiment 2

[0051] (1) Vacuum dry polybutylene terephthalate / adipate and polyethylene glycol (molecular weight: 10,000), and the water content is less than 200ppm;

[0052](2) Dry 100 parts of polybutylene terephthalate / adipate, 2 parts of polyethylene glycol, 0.8 parts of sodium pentadecylsulfonate, 5 parts of 2-hydroxyethylene Methyl phosphate and 1 part of calcium carbonate were blended for 5 minutes, and entered into the twin-screw extruder through the hopper 1 successively, melted and extruded under the action of the screw 2, and then entered the casing 3 of the spinning assembly through the melt pipeline, and passed The metering pump 4 measures, and is extruded by the spinneret 5, cooled by the cooling zone 6, oiled by the cluster oiling device 7, and pre-drawn and wound by the winding roller 8 to obtain a degradable material with uniform structure and controllable fineness. Polyester. Wherein, the spinning temperature is 260° C., and the spinning speed is 1000 m / min. Its fiber st...

Embodiment 3

[0056] (1) Extrude 50 parts of polybutylene terephthalate / adipate, 3 parts of polyethylene glycol (molecular weight 15000), 4 parts of 2-hydroxyethyl methyl phosphoric acid and 2 parts of barium sulfate through twin-screw extrusion Extrude and granulate to obtain polyethylene glycol / polyethylene terephthalic acid / butylene adipate blend, and the processing temperature is 140°C;

[0057] (2) 50 parts of polybutylene terephthalic acid / butylene adipate and the polyethylene glycol / polybutylene terephthalic acid / butylene adipate blend obtained in step (1) were vacuum-dried to remove moisture Less than 200ppm. Take 50 parts of polybutylene terephthalate / adipate and polyethylene glycol / polybutylene terephthalate adipate blend, 1.0 parts of sodium dodecylbenzene sulfonate after drying Blending for 8 minutes, enter the twin-screw extruder through the hopper 1 in turn, melt and extrude under the action of the screw 2, enter the box 3 of the spinning assembly through the melt pipeline, m...

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