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Flame-retardant polyester and preparation method thereof

A technology of flame-retardant polyester and polyester, which is applied in the field of flame-retardant polyester and its preparation, can solve problems such as limited application, and achieve the effect of improving flame-retardant effect and slowing down the formation of

Inactive Publication Date: 2013-04-03
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PET is flammable, and the limiting oxygen index is 20-22%, which limits its application in the fields of indoor and outdoor decoration, automobile industry, electronic and electrical, electrician and so on.

Method used

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  • Flame-retardant polyester and preparation method thereof
  • Flame-retardant polyester and preparation method thereof
  • Flame-retardant polyester and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020]

[0021] Ethylene terephthalate adopts continuous esterification-polycondensation process to prepare polyethylene terephthalate ethylene glycol, and 2-carboxyethyl-phenylphosphinic acid and Al( OH) 3 , the preliminary polyester product was obtained. It was then melt blended with melamine using a screw extruder to prepare a flame retardant polyester for film.

[0022] Specific steps are as follows:

[0023] (1) Preparation of metal compound powder solution: Mix the metal compound powder with the carrier solution ethylene glycol in a weight ratio of 1:5, then place it in an ultrasonic machine to oscillate, control the ultrasonic power to 100W for 1 hour, and then put it into a centrifuge. Disperse for 0.5h until the dispersion is uniform, and obtain the metal compound powder solution for use;

[0024] (2) Pretreatment of phosphorus-based flame retardant: Mix the phosphorus-based flame retardant with the reaction solution ethylene glycol in a weight ratio of 1:2, and...

Embodiment 2

[0028]

[0029] Ethylene terephthalate adopts continuous esterification-polycondensation process to prepare polyethylene terephthalate ethylene glycol, and 2-carboxyethyl-phenylphosphinic acid and Al( OH) 3 , the preliminary polyester product was obtained. Then, it was melt-blended with melamine cyanuric acid using a screw extruder to prepare a flame-retardant polyester for film.

[0030] Specific steps are as follows:

[0031] (1) Preparation of metal compound powder solution: Mix the metal compound powder and the carrier solution in a weight ratio of 1:5 and then place it in an ultrasonic machine to oscillate, control the ultrasonic power to 100W for 1 hour, and then put it into a centrifuge to disperse for 0.5 hours To disperse uniformly, obtain metal compound powder solution for use;

[0032] (2) Pretreatment of phosphorus-based flame retardant: Mix the phosphorus-based flame retardant with the reaction solution at a weight ratio of 1:3, and react at 130 °C for 1.5 h...

Embodiment 3

[0037]

[0038] Ethylene terephthalate adopts continuous esterification-polycondensation process to prepare polyethylene terephthalate ethylene glycol, and 2-carboxyethyl-phenylphosphinic acid and Mg( OH) 2 , the preliminary polyester product was obtained. Then, it was melt-blended with melamine cyanuric acid using a screw extruder to prepare a flame-retardant polyester for film.

[0039] Specific steps are as follows:

[0040] (1) Preparation of metal compound powder solution: Mix the metal compound powder with the carrier solution in a weight ratio of 1:3 and then place it in an ultrasonic machine to oscillate, control the ultrasonic power to 100W for 1.5h, and then put it in a centrifuge to disperse 0.5 h until the dispersion is uniform, and the metal compound powder solution is obtained for use;

[0041] (2) Pretreatment of phosphorus-based flame retardant: Mix the phosphorus-based flame retardant with the reaction solution at a weight ratio of 1:3, and react at 130 ...

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PUM

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Abstract

The invention relates to flame-retardant polyester and a preparation method thereof. The flame-retardant polyester is characterized by comprising the following components in percentage by weight: 6-8% of phosphorus flame retardant, 5-15% of nitrogen flame retardant, 1-3% of metallic compound powder, 0-1% of antioxidant and the balance of polyester. The flame-retardant polyester is prepared from common polyester, phosphorus flame retardant and nitrogen flame retardant. The composite flame-retardant polyester is prepared by a process of in-situ copolymerization and melt blending; the flame retardant efficiency of the polyester can be improved; forming of polyester metal is retarded; meanwhile, no toxic product is generated, and the flame-retardant polyester is suitable for the fields such as textile articles, film products and auto parts.

Description

technical field [0001] The invention relates to a flame retardant polyester and a preparation method thereof. Background technique [0002] Plastics and textiles made of polyethylene terephthalate (PET) have many advantages, such as low price, high strength, good elasticity, not easy to wrinkle deformation, wear resistance and heat resistance, etc., and have become the most widely used, the largest consumption, The species with the lowest price, the global production has exceeded 40 million tons. However, PET is flammable and has a limiting oxygen index of 20-22%, which limits its application in interior and exterior decoration, automotive industry, electrical and electronic, electrician and other fields. At present, the types of flame retardants commonly used in the flame retardant modification of PET include phosphorus-based, nitrogen-phosphorus synergistic systems, halogen-based and new inorganic nanocomposite flame-retardant materials. Among them, halogen-free flame re...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L71/08C08K9/04C08K3/22C08K3/26C08K5/3492C08K5/5313C08G63/183C08G63/78
Inventor 梁科文
Owner IRICO
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