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Production method of high-quality flame retardant polyester industrial filament

A flame-retardant polyester and production method technology, applied in the textile field, can solve problems such as poor production stability, low strength, and large changes in intermittent small polyester tailings, and achieve high strength and high strength of finished products, and good production cost control Effect

Inactive Publication Date: 2018-10-19
WUXI SUOLIDE TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the large changes in the intermittent small polyester head and tail, the production stability is poor, and the strength of the final product is low (5.5cn / dt), and the limiting oxygen index LOI is low (about 28)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The production method of a high-quality flame-retardant polyester industrial yarn described in the present invention includes drying of flame-retardant masterbatches, batching of flame-retardant masterbatches, extrusion melting, metering, slow cooling, side blowing cooling, oiling, five pairs of Roller stretching and shaping, network knotting, winding forming;

[0028] The flame retardant masterbatch is dried: the dew point of dry air is -50 degrees, the pressure is 1.1 bar, the temperature is 103, and the drying time is 11 hours.

[0029] The flame retardant masterbatch batching: computer controlled weighing 30KG / time, small screw metering and counterweighting, and the ratio of high-viscosity slices accounts for 4.2%, mixing and stirring for 30 seconds / time, and putting it into the middle silo.

[0030] The extrusion melting: using high-viscosity chips with a viscosity of 1.05, adding 4% flame retardant masterbatch after drying, and uniformly mixing the materials, heat...

Embodiment 2

[0039] The production method of a high-quality flame-retardant polyester industrial yarn described in the present invention includes drying of flame-retardant masterbatches, batching of flame-retardant masterbatches, extrusion melting, metering, slow cooling, side blowing cooling, oiling, five pairs of Roller stretching and shaping, network knotting, winding forming;

[0040] The flame retardant masterbatch is dried: the dew point of dry air is -50 degrees, the pressure is 1.2 bar, the temperature is 105, and the drying time is 10 hours.

[0041] The flame retardant masterbatch batching: computer controlled weighing 30KG / time, small screw metering and counterweighting, and the proportion of high-viscosity slices accounts for 4.0%, the mixture is stirred for 30 seconds / time, and put into the middle silo.

[0042] The extrusion melting: use high-viscosity slices with a viscosity of 1.05, add dried 4% flame-retardant masterbatch, and uniformly mix the materials, heat extrusion an...

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Abstract

The invention relates to a production method of a high-quality flame retardant polyester industrial filament. The production method comprises the following steps: drying a flame retardant master batch, accurately weighing and dosing the flame retardant master batch and a high viscosity slice, extruding, fusing, metering, slowly cooling, laterally blowing air to cool, applying oil, drawing and setting through five pairs of rollers, tying an interlaced knot, winding and molding. The product strength (more than or equal to 6.4 cn / dt) is high, and the limit oxygen index LOI (more than or equal to32%) is high.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a production method of flame-retardant polyester industrial yarn. Background technique [0002] The limiting oxygen index LOI of polyester is generally 20%-22%, which is a flammable material, and the potential danger caused by fire is becoming increasingly prominent. At present, the flame retardant modification of polyester at home and abroad mainly uses phosphorus-based flame retardants as modifiers (mainly copolymerized with CEPPA). The heat of combustion melts the polyester, reduces the flow viscosity to produce molten dripping, and takes away the heat, and uses the free radical capture effect of the phosphorus-containing flame retardant to extinguish the flame to achieve the purpose of flame retardancy. The flame-retardant mechanism is that the molten droplets take away heat Flame retardant. [0003] There are many studies on flame-retardant polyester in civil ...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/07D01D1/04D01D13/00
CPCD01F6/92D01D1/04D01D13/00D01F1/07
Inventor 范晓兵戴锁洪周卫中史小良
Owner WUXI SUOLIDE TECH DEV CO LTD
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