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Inorganic/organic hybrid composite fire retardation agent and application of the same in PET fibers

A compound flame retardant and organic hybridization technology, which is applied in the manufacture of fire-resistant and flame-retardant filaments, single-component polyester artificial filaments, etc., can solve the problems affecting the mechanical properties of PET fibers, achieve reduced consumption, lower costs, The effect of improving the mechanical properties of fibers

Inactive Publication Date: 2014-04-23
TAICANG RONGWEN SYNTHETIC FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of additive phosphorus-based flame retardants will affect the mechanical properties of PET fibers, which has become an important problem to be solved in flame-retardant PET spinning.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Dry polydiphenylsulfone phenyl phosphate powder with a particle size of 3 μm and sodium montmorillonite with a particle size of 0.3 μm at 100°C for 24 hours;

[0024] (2) Dry the PET chips (Shanghai Defulun Chemical Fiber Co., Ltd.) at 120°C for 2 hours, then put them in a hot air drying oven at 150°C for 8 hours, and then combine them with the The flame retardant powder and sodium-based montmorillonite were mixed uniformly at a temperature of 60°C and a stirring speed of 300rpm. The amount of the flame retardant powder was 5% of the PET chips, and the amount of nanomaterials was 1% of PET chips, inject the resulting mixture into a twin-screw extruder to extrude and granulate to make flame-retardant PET chips, and the screw processing temperature of the twin-screw extruder is 260°C;

[0025] (3) Dry the flame-retardant PET chips obtained in step (2) at 130°C for 4 hours, then put them in a hot air drying oven at 150°C for 8 hours, cool to 60°C, add ethylene bishard ...

Embodiment 2

[0028] (1) Two-component flame retardant poly(p-diphenylsulfone phenyl phosphate) and aluminum phosphinate (mass ratio: 2:1) powder with a particle size of 1.0 μm, and 0.3 μm quaternary phosphorus salt intercalation Montmorillonite, dried at 110°C for 24 hours;

[0029] (2) Dry the PET chips (Shanghai Defulun Chemical Fiber Co., Ltd.) at 150°C for 3 hours, then put them in a hot air drying oven at 160°C for 4 hours, and then combine them with the The flame retardant powder and the quaternary phosphorus salt intercalated montmorillonite were mixed evenly at a temperature of 80°C and a stirring speed of 250rpm. The addition of the flame retardant powder was 4% of the PET chips, and the quaternary phosphorus salt The amount of intercalated montmorillonite is 1.5% of the PET chip, and the resulting mixture is injected into a twin-screw extruder to extrude and granulate to make a flame-retardant PET chip. The screw processing temperature of the twin-screw extruder is 290°C;

[003...

Embodiment 3

[0033] (1) Dry the silicon-aluminum nanotubes with a particle size of 0.3 μm at 120°C for 24 hours, and select triphenyl phosphate as the flame retardant;

[0034] (2) Dry the PET chips (Shanghai Defulun Chemical Fiber Co., Ltd.) at 130°C for 4 hours, then put them in a hot air drying oven at 160°C for 6 hours, and then combine them with the The flame retardant powder and the silicon-aluminum nanotubes were mixed evenly at a temperature of 40°C and a stirring speed of 200rpm. The amount of the flame retardant powder added was 5% of the PET chips, and the amount of the silicon-aluminum nanotubes It is 0.5% of the PET chip, and the resulting mixture is injected into a twin-screw extruder to extrude and pelletize to make a flame-retardant PET chip. The screw processing temperature of the twin-screw extruder is 268°C;

[0035] (3) Dry the flame-retardant PET chips obtained in step (2) at 130°C for 4 hours, then put them in a hot air drying oven at 150°C for 6 hours, cool to 40°C, ...

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Abstract

The present invention relates to an inorganic / organic hybrid composite fire retardation agent and an application of the inorganic / organic hybrid composite fire retardation agent in PET fibers. The preparation method comprises: uniformly stirring and mixing dried PET slices, a phosphorus fire retardation agent and a nanometer material at a temperature of 30-180 DEG C, carrying out extrusion granulation at a temperature of 240-300 DEG C to obtain fire retardation PET slices, drying the fire retardation PET slices, cooling to a temperature of 40-90 DEG C, adding a dispersing agent to obtain a spinning raw material, and carrying out spinning and drafting processing to obtain the finished product. According to the present invention, the PET slices has characteristics of good spinning molding and excellent fiber quality; and the adopted nanometer material and the phosphorus fire retardation agent can produce the synergistic effect, such that the fire retardation agent consumption can be effectively reduced so as to reduce the cost, the enhancement effect can be provided, the mechanical property of fibers can be effectively increased, and the melt dropping resistance of the PET can be improved.

Description

technical field [0001] The invention belongs to the field of polyester fiber preparation, in particular to a preparation method of an inorganic / organic hybrid composite flame retardant and its application in PET fiber. Background technique [0002] With the continuous advancement of economic globalization and the rapid expansion of domestic PET fiber plant production capacity, the market supply and demand relationship of PET fiber products has undergone fundamental changes, and it is an indisputable fact that production exceeds demand. According to reports, a new survey by the Swiss Consulting Agency (SRI) found that the world's PET production capacity has reached 58 million t / a, which has exceeded the demand by 10 million t / a. However, PET fiber is a molten flammable fiber, so it is necessary and urgent to carry out flame-retardant treatment on polyester fiber to reduce its fire hazard. [0003] The flame retardant modification methods of polyester mainly include several m...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/07D01F1/10
Inventor 朱美芳李莉莉郁铭芳周哲张思灯孙宾全潇陶景良苏立平肖庆浦雪强金志明朗俊逸
Owner TAICANG RONGWEN SYNTHETIC FIBER
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