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Method and apparatus for continuously drip-free fire-retardant polyester

A technology of flame retardant and polymerization equipment, applied in the field of non-drip flame retardant polyester, can solve the problems of deterioration of the quality of the degraded blend, high cost, numerous procedures, etc., and achieves low production cost, simple method and uniform dispersion. Effect

Inactive Publication Date: 2007-08-29
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sending the polyester in solid form to the blend production site requires the polyester to be cooled in the production unit and then optionally pelletized to achieve solidification. This commonly used traditional method brings the following disadvantages: cooling, solidification, pelletizing, The steps described, such as storage, transportation and melting, are costly and complicated
Moreover, the required energy consumption necessarily results in an environmental impact
Melting of the blending components in the compounding equipment constitutes additional exposure of the polyester to high temperatures, which causes degradation and thus deterioration of the quality of the blend produced

Method used

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  • Method and apparatus for continuously drip-free fire-retardant polyester

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Embodiment 1

[0024] Use terephthalic acid and ethylene glycol as raw materials to carry out esterification reaction at 200-260°C, and then carry out recondensation reaction at 280-300°C under a vacuum lower than 300Pa to continuously produce poly(p-phenylene) with a viscosity of 0.655 Ethylene glycol diformate (abbreviated as: PET) melt. The polyethylene terephthalate melt in the continuous polymerization equipment 1 is input through the main pipeline 2 at a speed of 1000kg / h at a temperature of 220-300°C (for example, 220°C, 240°C, 280°C, 300°C). Co-mixing device 3, while branch pipe 4 inputs polyethylene terephthalate into screw mixer 5, and the supply rate is 5kg / h; silicon compound (Dow Corning 217 sheet resin, obtained by hydroxylation of 100% phenyl silicone resin) ) flame retardant powder (functional particles) into the screw mixer 5, the supply rate is 5kg / h. The mixture further enters the blending device 3 for blending treatment, and the blending temperature in the blending devic...

Embodiment 7

[0028] Use terephthalic acid and ethylene glycol as raw materials to carry out esterification reaction at 200-260°C, and then carry out re-condensation reaction at 280-300°C under a vacuum of less than 300 Pa to continuously produce poly(p-phenylene) with a viscosity of 0.655 Ethylene glycol diformate (abbreviated as: PET) melt. The polyethylene terephthalate melt in the continuous polymerization equipment 1 is input through the main pipeline 2 at a speed of 1000kg / h at a temperature of 220-300°C (for example, 220°C, 240°C, 280°C, 300°C). Co-mixing device 3, while branch pipe 4 inputs polyethylene terephthalate into screw mixer 5, and the supply rate is 5kg / h; silicon compound (Dow Corning 217 sheet resin, obtained by hydroxylation of 100% phenyl silicone resin) ) flame retardant powder and antioxidant IR1010 (or antioxidant 1076, antioxidant TNP, 168) are mixed and then added to the screw mixer 5, the supply rate is 5kg / h, and the mixture further enters the blending device 3 ...

Embodiment 8

[0030] Use terephthalic acid and ethylene glycol as raw materials to carry out esterification reaction at 200-260°C, and then carry out recondensation reaction at 280-320°C under a vacuum lower than 300Pa to continuously produce polyparaphenylene with a viscosity of 0.655. Ethylene glycol diformate (abbreviated as: PET) melt. Polyethylene terephthalate melt passes through the main pipeline from the continuous polymerization equipment 6 at a speed of 1000kg / h at a temperature of 220-320°C (for example, 220°C, 240°C, 280°C, 300°C, 320°C). 7 is fed into the blending device 8. On the other hand, polyethylene terephthalate chips with a viscosity of 0.655 supplied at a supply rate of 5 kg / h and silicon compound flame-retardant powder PEI (GE1010 series) supplied at a rate of 5 kg / h were mixed in a screw mixer 9 Mix in, and further enter the blending device 8 for blending treatment. Then use ordinary spinning machine to carry out conventional spinning and drawing process to make no...

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Abstract

The invention discloses a method and device to continuously produce non-dropping fire resistance property polyester that includes the following steps: polyester melt passing through main pipeline inputting commixing device; taking crashing and decentralizing process to fire resistance property functionality particle with auxiliary agent in jet mill; taking commixing process to gain the non-dropping fire resistance property polyester. The invention has the advantages of simple method, reasonable device structure, easy to operate, stable species, low cost, etc.

Description

Technical field: [0001] The invention relates to a production method and equipment of non-dripping flame-retardant polyester. Background technique: [0002] It is known that especially polyethylene terephthalate, polytrimethylene terephthalate and polybutylene terephthalate, due to their excellent mechanical, physical and chemical properties, are widely used in fibers, films and other Widely used in molded products. Polyester fiber is a flammable and flammable fiber. With the expansion of its application field, it is required to reach Certain flame retardant requirements, otherwise it will greatly increase the unsafety of fire. Not only that, these polymers will melt and drip under burning or high temperature, which limits their use in some occasions, especially as clothing fibers. Because when encountering a fire, the polymer melts and drips, which will not only make People are scalded, and other materials may be ignited after the molten droplets drip, causing new fires....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/03C08J3/20C08K5/54B29B7/10
Inventor 杨娟李旭本田圭介
Owner TORAY FIBER RES INST(CHINA) CO LTD