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Polyester having excellent fire-retardancy and preparation method thereof

A technology of flame retardant performance and polyester, applied in the field of polyester and production, can solve the problems of secondary fire of polyester, non-lasting flame retardant effect, toxic smoke, etc., and achieve the effect of excellent flame retardant performance

Inactive Publication Date: 2008-03-12
TORAY FIBER RES INST(CHINA) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The post-processing technology mainly coats polyester fibers or polyester fabrics, etc., but has the disadvantage that the flame retardant effect is not long-lasting, and has a lot of influence on the dyeing and hand feeling of the product.
[0004] Chinese patent 02817032.6 adopts a blending method to obtain flame-retardant PET, but uses bromine-containing flame retardants. Although flame-retardant performance is achieved, bromine-containing flame retardants can produce toxic smoke during combustion, which has been gradually banned by many countries. use
Chinese patent 00804393.0 and Chinese patent 02109909.X both use organophosphorus comonomers to add polyester reaction system in the polycondensation stage to obtain copolymerized flame-retardant polyester, but this type of polyester is dripping when it is flame-retardant. The dripping polyester is easy to cause secondary fire, so it is limited to the use of low-end products

Method used

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  • Polyester having excellent fire-retardancy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 1.5 parts of diphenylsilanediol, 12.32 parts of terephthalic acid, and 5.63 parts of ethylene glycol into a series of reactors with evaporators and vacuum devices, and heat them to about 250 degrees for esterification reaction. When the chemical reaction is carried out to more than 90%, add 0.98 parts of ethylene glycol solution with a concentration of 60% PHP, 0.006 parts of catalyst antimony trioxide, and 0.053 parts of titanium dioxide in the reaction system, and gradually reduce the pressure to below 200 Pascals, and the temperature is 290 The polycondensation reaction is carried out under high temperature conditions, and the reaction is about three hours. After the reaction is completed, the flame-retardant chips are obtained, and conventional melt spinning is carried out, or the next step is processed to obtain fibers.

Embodiment 2

[0028] The addition of raw materials is as follows: 2.25 parts of hydroxy silicone oil (hydroxyl content 8%), 12.75 parts of terephthalic acid, 5.83 parts of ethylene glycol, 0.053 parts of titanium dioxide, 0.006 parts of catalyst antimony trioxide, the concentration is 70% 3 parts of DDP in ethylene glycol solution. All the other are with embodiment 1.

Embodiment 3

[0030] The device is the same as in Example 1, and the amount of raw materials added is as follows: 1.5 parts of diphenylsilanediol, 15 parts of dimethyl terephthalate, 9.79 parts of ethylene glycol, 0.004 parts of cobalt acetate as a transesterification catalyst, 0.053 parts 1 part of titanium dioxide, 0.006 part of 65% BCPPO in ethylene glycol solution of 0.006 part of catalyst antimony trioxide.

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Abstract

The present invention discloses excellent flame-retardant polyester and preparation method of the flame-retardant polyester. The product comprises polyester and the organic silicone copolymer as well as organic phosphorus copolymer contained in the polyester. The preparation process comprises the synthesis of the polyester, etherifying of the synthesized polyester or the polycondensation phase during which organic silicon monomer and organic phosphor monomer are added. The present invention takes use of silicon monomer and organic phosphor monomer for copolymerization with the polyester. The polyester is endowed with excellent flame-retardant performance. The polyester can meet the no-drop requirements during the flame-retardant process. The product by the present invention is no-drop-typed flame-retardant polyester, which can be used to manufacture polyester fiber and correspondent woven fabric or weaving fabric textile or nonwoven cloth and so on.

Description

Technical field: [0001] The invention relates to a polyester and a production method, which is a flame-retardant polyester and a production method. Background technique: [0002] Polyester products, especially polyethylene terephthalate, are widely used in the field of manufacturing fibers and their products due to their excellent properties, and have become the largest output product in the chemical fiber industry in the world. With the improvement of human's requirements for the quality of life and the enhancement of self-protection awareness, the requirements for polyester products are also getting higher and higher, especially the requirements for safety in use, such as the requirement that polyester products have good flame retardant properties , so that in the case of fire, it will not bring greater disasters to humans, so various companies have developed polyester with flame retardant properties. [0003] At present, the flame retardant technologies used by various c...

Claims

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Application Information

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IPC IPC(8): C08G63/78C08G63/695C08G63/692
Inventor 李旭本田圭介
Owner TORAY FIBER RES INST(CHINA) CO LTD
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