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Method for preparing halogen-free flame-retarding polyester fibers with durability and droplet resistance

A polyester fiber and flame-retardant polyester technology, which is applied in the manufacture of fire-resistant and flame-retardant filaments, single-component polyester artificial filaments, chemical post-treatment of synthetic polymer artificial filaments, etc., can solve the impact of fiber mechanical properties Large problems, to achieve significant economic and social benefits, obvious effect, good heat resistance effect

Inactive Publication Date: 2013-06-26
WUHAN TEXTILE UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the fiber obtained by this method has obvious anti-droplet effect, it has a great influence on the mechanical properties of the fiber.

Method used

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  • Method for preparing halogen-free flame-retarding polyester fibers with durability and droplet resistance
  • Method for preparing halogen-free flame-retarding polyester fibers with durability and droplet resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A preparation method of durable halogen-free flame-retardant anti-droplet polyester fiber, comprising the following steps:

[0036] (1) Mixing: Put the phosphorus-containing flame-retardant copolyester chip into a vacuum drying oven and dry it for 12 hours at 120°C, so that the water content in the phosphorus-containing flame-retardant copolyester chip is lower than 0.02wt%, and then added to In the high-speed mixer (being the existing mixing equipment); add the anti-melt dripping agent triallyl isocyanurate by 3% of the phosphorus-containing flame-retardant copolyester chip quality, fully mix in the high-speed mixer, obtain premix;

[0037] The phosphorus-containing flame-retardant copolyester chip is EFR8402-1(G) produced by Sichuan Dongcai Technology Group Co., Ltd., and its phosphorus content is 6500ppm.

[0038] (2) Blending extrusion: the premixed material is uniformly mixed in a twin-screw extruder, and cut into flame-retardant polyester chips (ie, halogen-free ...

Embodiment 2

[0045] A preparation method of durable halogen-free flame-retardant anti-droplet polyester fiber, comprising the following steps:

[0046] (1) Mixing: Put the phosphorus-containing flame-retardant copolyester chip into a vacuum drying oven and dry it for 12 hours at 120°C, so that the water content in the phosphorus-containing flame-retardant copolyester chip is lower than 0.02wt%, and then added to In a high-speed mixer; add anti-melt dripping agent triallyl isocyanurate according to 5% of the mass of phosphorus-containing flame-retardant copolyester chips, and fully mix in a high-speed mixer to obtain a premix;

[0047] (2) Blending and extrusion: the premixed material is uniformly mixed in a twin-screw extruder, and cut into primary slices of halogen-free flame-retardant anti-melt droplet polyester;

[0048] (3) Melt spinning: put the halogen-free flame-retardant and anti-melt-drop polyester primary chips into a vacuum drying oven at 120°C and dry for 12 hours, so that The...

Embodiment 3

[0053] A preparation method of durable halogen-free flame-retardant anti-droplet polyester fiber, comprising the following steps:

[0054] (1) Mixing: Put the phosphorus-containing flame-retardant copolyester chip into a vacuum drying oven and dry it for 12 hours at 120°C, so that the water content in the phosphorus-containing flame-retardant copolyester chip is lower than 0.02wt%, and then added to In the high-speed mixer; add the anti-melt dripping agent triallyl isocyanurate according to 4% of the mass of the phosphorus-containing flame-retardant copolyester chips, and fully mix in the high-speed mixer to obtain a premix;

[0055] (2) Blending and extrusion: the premixed material is uniformly mixed in a twin-screw extruder, and cut into primary slices of halogen-free flame-retardant anti-melt droplet polyester;

[0056] (3) Melt spinning: put the halogen-free flame-retardant and anti-melt-drop polyester primary chips into a vacuum drying oven at 120°C and dry for 12 hours, ...

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Abstract

The invention relates to a method for preparing halogen-free flame-retarding polyester fibers with durability and droplet resistance. The method is characterized by comprising the following steps of: (1) material mixing: putting dried phosphorous flame-retarding copolyester chips into a high-speed stirrer, adding an anti-droplet agent which is 3-5% of the phosphorous flame-retarding copolyester chips by mass, and stirring so as to obtain a premix; (2) blending extrusion: blending uniformly and cutting into flame-retarding polyester chips; (3) melt spinning: putting the flame-retarding polyester chips into a vacuum drying oven for drying, and carrying out a melt spinning operation according to a conventional polyester fiber melt spinning method so as to obtain primary durable flame-retarding polyester fibers; and (4) irradiation treatment: irradiating the primary durable flame-retarding polyester fibers on a high-energy electron accelerator of 1.5-10 MeV with the irradiation dose of 60-200 KGy so as to obtain the halogen-free flame-retarding polyester fibers with durability and droplet resistance. According to the method provided by the invention, the droplet drippage situation is not caused in the combustion process, so that the droplet is effectively resisted, besides, toxic hydrogen halide gas and smoke cannot be released.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber materials, and in particular relates to a preparation method of a durable non-halogen flame-retardant anti-droplet polyester fiber. Background technique [0002] Polyethylene terephthalate (PET) fiber is a polyester fiber with excellent performance developed by DuPont in 1953. It is produced by polycondensation of terephthalic acid (TPA) and ethylene glycol (EG). become. The fiber has excellent physical and mechanical properties in a wide temperature range, excellent fatigue resistance, friction resistance, excellent aging resistance, outstanding electrical insulation, and is stable to most organic solvents and inorganic acids. Moreover, the production energy consumption is low and the processability is good, so it is used in the fields of labor insurance uniforms, carpets, decorative materials, transportation and bedding, and has become the most widely used and most consumed synthetic fib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/07D01F11/08
Inventor 黄年华王晓广陈志军吴海燕周晓洁张翔于鹏飞
Owner WUHAN TEXTILE UNIV