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Method for continuously producing polyester functional master batch and polyester functional master batch

A technology of functional masterbatch and polyester, which is applied in the field of polyester functional masterbatch and continuous production of polyester functional masterbatch, which can solve the problems of uniform dispersion of difficult functional powder and difficult application of functional masterbatch, and achieve the improvement of structural uniformity , improve the uniformity of the structure, achieve the effect of precise proportion addition and highly uniform dispersion

Active Publication Date: 2019-05-03
CHINESE TEXTILE ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since in the melt blending method, the dispersion of the functional powder in the high-viscosity carrier resin melt mainly depends on the mechanical shear force provided by the mixing equipment, it is difficult to realize the functional powder in the carrier resin melt in a small scale. Highly uniform dispersion, which makes it difficult for the functional masterbatch prepared by the melt blending method to be suitable for the preparation of fine denier or ultrafine denier functional polyester fibers with high functional powder content

Method used

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  • Method for continuously producing polyester functional master batch and polyester functional master batch
  • Method for continuously producing polyester functional master batch and polyester functional master batch
  • Method for continuously producing polyester functional master batch and polyester functional master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A method for continuously preparing polyester functional master batches, comprising the steps of:

[0074] A slurry prepared by preparing terephthalic acid, ethylene glycol and catalyst antimony ethylene glycol, the molar ratio of terephthalic acid to ethylene glycol in the slurry is 1:1.3, and the amount of antimony catalyst ethylene glycol is terephthalic acid 0.05% of the mass of formic acid; the obtained slurry is continuously and uniformly transported to an esterification system composed of a vertical esterification tank for esterification reaction, wherein the reaction temperature of the esterification tank is 280°C. When the acid value of the ethylene terephthalate oligomer reaches 30 mgKOH / g, the ethylene terephthalate oligomer is continuously and stably withdrawn from the esterification tank.

[0075] The antibacterial agent cuprous oxide and ethylene glycol are formulated into a functional slurry predispersion material at a mass ratio of 40:60. The obtained f...

Embodiment 2

[0080] A slurry formulated with terephthalic acid, ethylene glycol and catalyst tetraisopropyl titanate, the molar ratio of terephthalic acid to ethylene glycol in the slurry is 1:1.3, and the amount of catalyst tetraisopropyl titanate It is 0.004% of the mass of terephthalic acid; the obtained slurry is continuously and uniformly transported to an esterification system composed of a vertical esterification tank for esterification reaction, wherein the reaction temperature of the esterification tank is 260°C. When the acid value of the ethylene terephthalate oligomer reaches 40mgKOH / g, the ethylene terephthalate oligomer is continuously and stably withdrawn from the esterification tank.

[0081] The flame retardant zinc borate and ethylene glycol are formulated into a functional paste predispersion material at a mass ratio of 50:50. The obtained functional slurry pre-dispersed material is continuously and uniformly transported to a functional slurry multi-stage grinding system...

Embodiment 3

[0086] A slurry formulated with terephthalic acid, butanediol and catalyst tetrabutyl titanate, the molar ratio of terephthalic acid and butanediol in the slurry is 1:1.2, and the amount of catalyst tetrabutyl titanate is 0.4% of the mass of phthalic acid; the obtained slurry is continuously and uniformly transported to an esterification system composed of a vertical esterification tank for esterification reaction, wherein the reaction temperature of the esterification tank is 245°C. When the acid value of the butylene terephthalate oligomer reaches 10 mgKOH / g, the butylene terephthalate oligomer is continuously and stably withdrawn from the esterification tank.

[0087] The antibacterial agent silver oxide and butanediol were formulated into a functional paste predispersion at a mass ratio of 20:80. The obtained functional slurry pre-dispersed material is continuously and evenly transported to a functional slurry multi-stage grinding system formed by 5 grinding machines conne...

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Abstract

The invention belongs to the technical field of polymer material synthesis, and relates to a method for continuously producing a polyester functional master batch and the polyester functional master batch, the method comprises the following steps: using aromatic binary acid, aliphatic dihydric alcohol and a catalyst to prepare an aromatic binary acid aliphatic dihydric alcohol ester oligomer; mixing functional powder and aliphatic dihydric alcohol to obtain functional slurry; and adding the functional slurry into the aromatic binary acid aliphatic dihydric alcohol ester oligomer on line, uniformly mixing, carrying out melt polycondensation reaction, and carrying out pelletizing forming, crystallizing and solid-phase polycondensation reaction to obtain polyester functional master batch slices. According to the invention, the functional slurry online addition procedure, the melt polycondensation reaction procedure, the pelletizing forming and crystallizing procedures and the solid-phasepolycondensation reaction procedure are introduced, the continuous production of the polyester functional master batch and the accurate addition and height dispersion of the functional powder are realized, and the structure uniformity of the polyester functional master batch is improved.

Description

technical field [0001] The invention belongs to the technical field of polymer material synthesis, and in particular relates to a method for continuously producing polyester functional masterbatches and polyester functional masterbatches. Background technique [0002] At present, the preparation method of functional polyester fiber is mainly the masterbatch method. Functional masterbatch is an aggregate made by uniformly loading super-normal functional powder in resin. The preparation of functional masterbatch usually adopts the melt blending method, and the carrier resin and functional powder are uniformly mixed above the viscous flow temperature of the carrier resin, relying on the strong shear force provided by the mixing equipment, so that the functional powder can be stabilized with a certain particle size. , Evenly dispersed in the carrier resin. Since in the melt blending method, the dispersion of the functional powder in the high-viscosity carrier resin melt mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183C08G63/80C08G63/181D01F6/92D01F1/07D01F1/10
Inventor 邱志成李鑫李志勇王雪金剑王颖刘建立刘玉来马肖张凯悦
Owner CHINESE TEXTILE ACAD
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