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Composite flame-retardant polyester and preparation method thereof

A flame retardant polyester and composite technology, applied in the field of composite flame retardant polyester and its preparation, can solve the problems of high thermoplastic processing temperature and rare nitrogen-based flame retardants, and achieve the effect of improving the flame retardant effect

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, due to the high thermoplastic processing temperature of PET materials, nitrogen-based flame retardants that can be applied to flame-retardant modification of PET are relatively rare.

Method used

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  • Composite flame-retardant polyester and preparation method thereof
  • Composite flame-retardant polyester and preparation method thereof
  • Composite flame-retardant polyester and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017]

[0018] Polyethylene terephthalate is prepared from ethylene terephthalate by a continuous esterification-polycondensation process, and Al(OH) is added during the preparation process 3 , to obtain a preliminary polyester product. Then use a screw extruder to melt and blend it with melamine to obtain a composite flame-retardant polyester.

[0019] Specific steps are as follows:

[0020] (1) Preparation of metal compound powder solution: mix the metal compound powder and the carrier solution ethylene glycol at a weight ratio of 1:5, then place it in an ultrasonic machine to vibrate, control the ultrasonic power to 100W for 1h, and then put it into a centrifuge Disperse for 0.5h until the dispersion is uniform, and the metal compound powder solution is obtained for use;

[0021] (2) Preparation of preliminary polyester products: The preparation process adopts a semi-continuous esterification-polycondensation process, and the temperature is controlled at 260 ° C. Firs...

Embodiment 2

[0024]

[0025] Polyethylene terephthalate is prepared from ethylene terephthalate by a continuous esterification-polycondensation process, and Al(OH) is added during the preparation process 3 , to obtain a preliminary polyester product. Then use a screw extruder to melt and blend it with melamine cyanuric acid to obtain a composite flame-retardant polyester.

[0026] (1) Preparation of metal compound powder solution: mix the metal compound powder and the carrier solution ethylene glycol at a weight ratio of 1:5, then place it in an ultrasonic machine to vibrate, control the ultrasonic power to 100W for 1h, and then put it into a centrifuge Disperse for 0.5h until the dispersion is uniform, and the metal compound powder solution is obtained for use;

[0027] (2) Preparation of preliminary polyester products: The preparation process adopts a semi-continuous esterification-polycondensation process, and the temperature is controlled at 270 ° C. First, polyester raw materials ...

Embodiment 3

[0030]

[0031] Polyethylene terephthalate is prepared from ethylene terephthalate by a continuous esterification-polycondensation process, and Mg(OH) is added during the preparation process 2 , to obtain a preliminary polyester product. Then use a screw extruder to melt and blend it with ammonium polyphosphate to obtain a composite flame-retardant polyester.

[0032] (1) Preparation of metal compound powder solution: mix the metal compound powder and the carrier solution ethylene glycol at a weight ratio of 1:3, then place it in an ultrasonic machine to vibrate, control the ultrasonic power to 100W for 1.5h, and then put it into a centrifuge Internally disperse for 0.5h until the dispersion is uniform, and the metal compound powder solution is obtained for use;

[0033] (2) Preparation of preliminary polyester products: The preparation process adopts a semi-continuous esterification-polycondensation process, and the temperature is controlled at 240 ° C. First, polyester r...

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Abstract

The invention relates to composite flame-retardant polyester and a preparation method thereof. The composite flame-retardant polyester is characterized by consisting of the following components in percentage content by mass: 5 to 15 percent of nitrogen flame retardant, 1 to 3 percent of metallic compound powder, 0 to 1 percent of antioxidant and the balance of polyester. The invention provides the composite flame-retardant polyester and the preparation method thereof. The composite flame-retardant polyester is prepared from the common polyester, the nitrogen flame retardant and an inorganic nano flame retardant; a compound of the common polyester and the nitrogen flame retardant is prepared by a melt blending process; and tests prove that the composite flame-retardant polyester can be applied to polyester spinning production, can improve a flame-retardant effect of the polyester, also does not generate toxic products and can be widely applied to the field of textile products, thin film products, automobile accessories and the like.

Description

technical field [0001] The invention relates to a composite flame-retardant polyester and a preparation method thereof. Background technique [0002] With the development of society and the progress of science and technology, polyester materials have been developed rapidly, and their production volume is increasing year by year. Polyester material has become an indispensable material in various fields of cutting-edge technology, national defense construction and national economy because of its incomparable properties in many other materials. However, when polyester materials are widely used, they also bring hidden dangers to the safety of human life and property, because they are combustible and flammable materials, and they have a large heat release rate, high calorific value, and fast flame propagation speed during combustion, making them difficult to burn. When extinguished, sometimes a large amount of thick smoke and toxic gas are produced, which is harmful to the envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L71/08C08K9/04C08K3/22C08K3/26C08K5/3492C08K3/32C08G63/183C08G63/78
Inventor 梁科文
Owner IRICO