Functional polyester production system, preparation method and functional polyester fiber

A production system, polyester oligomer technology, applied in the field of functional polyester fiber and functional polyester production system, can solve the problems of functional powder re-agglomeration, etc., to improve the dispersion state, improve performance, and improve spinning performance Effect

Pending Publication Date: 2022-07-15
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the functional powder slurry often uses diol monomer as a solvent, when it is mixed with polyester oligomers, there is often a problem that the excess diol monomer evaporates instantaneously at high temperature and the functional powder reunites.

Method used

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  • Functional polyester production system, preparation method and functional polyester fiber
  • Functional polyester production system, preparation method and functional polyester fiber
  • Functional polyester production system, preparation method and functional polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] As an embodiment of the present invention, this embodiment provides a high-shear reaction kettle with a reaction chamber inside, and a radial flow stirring paddle 9 for driving the reactants to flow in the radial direction is arranged in the reaction chamber. In this embodiment For example, as figure 1 As shown, the shear jet mechanism is a guide tube 8 that is sleeved on the outside of the radial flow stirring paddle 9 and is coaxially arranged with the radial flow stirring paddle 9. The guide tube 8 has a cylindrical structure. The inner walls are connected to achieve fixation. The two sides of the guide cylinder 8 in the axial direction have openings. The cylindrical peripheral wall is provided with a guide area opposite to the position of the radial flow stirring paddle 9. In the guide hole 801, during the rotation of the radial flow stirring paddle 9, the reactant is driven to move in the radial direction, and the reactant is blocked by the guide tube 8, and part o...

Embodiment 2

[0083] As another embodiment of the present invention, this embodiment is further improved on the basis of Embodiment 1, and the details are as follows.

[0084] like Figure 4 and Figure 5 As shown, in this embodiment, the high shear reactor also includes,

[0085] The baffle 802 is fixed on the guide tube 8 and extends inward from the inner wall of the guide tube 8 .

[0086] The baffle 802 is located on one side of the paddle along the axial direction of the guide tube 8 , and is fixedly connected to the inner wall of the guide tube 8 .

[0087] Specifically, the plane where the baffle plate 802 is located is parallel to the axis of the guide tube 8 , and the length along the radial direction of the guide tube 8 is greater than the gap between the guide tube 8 and the end of the blade , the radial flow stirring paddle 9 drives the reactant to move in the circumferential direction of the diversion cylinder 8 during the rotation process. When passing through the baffle 80...

Embodiment 3

[0093] As another embodiment of the present invention, this embodiment makes further improvements on the basis of the second embodiment, and the details are as follows.

[0094] In this embodiment, the radial flow stirring paddle 9 and the guide cylinder 8 are located at the lower part of the reactor, and an axial flow stirring paddle for guiding the reactants to flow along the axial direction to the radial flow stirring paddle 9 is also provided in the reactor. 10, the axial flow stirring paddle 10 can be arranged above or below the radial flow stirring paddle 9; the above-mentioned scheme is formed in the reactor by the radial flow stirring paddle 9, the guide cylinder 8 and the axial flow stirring paddle 10 for the circulation of the reactants. The passage of the duct, so that the reactants located outside the diversion cylinder 8 can be continuously supplemented into the interior of the diversion cylinder 8, thereby realizing the full dispersion of the functional powder in ...

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Abstract

The invention discloses a functional polyester production system, a preparation method and functional polyester fibers.The functional polyester production system comprises a polyester main production system and a functional polyester oligomer continuous preparation system, and the polyester main production system comprises an esterification unit, a pre-polycondensation unit and a final polycondensation unit which are sequentially connected; the functional polyester oligomer continuous preparation system comprises a high-shear reaction kettle and an oligomer mixer which are sequentially connected, an outlet of the esterification unit is connected with an inlet of the high-shear reaction kettle and an inlet of the oligomer mixer, a shear spraying device is arranged in the high-shear reaction kettle, agglomeration of functional powder can be effectively prevented through the shear spraying device, and the functional polyester oligomer can be continuously prepared. The mixing uniformity and the performance of the functional polyester are improved; the filter press value FPFPV of the functional polyester produced by adopting the production system is not greater than 0.2 bar / g, so that the improvement of the spinning performance of the functional polyester is facilitated, and the production system is suitable for producing high-quality fibers, films and other products.

Description

technical field [0001] The invention belongs to the technical field of polymer material synthesis, and particularly relates to a functional polyester production system, a preparation method and a functional polyester fiber. Background technique [0002] At present, the preparation method of functional polyester fiber is mainly the master batch method. The masterbatch method is to first melt and mix functional powder and carrier resin to obtain functional masterbatch with high functional powder content, and then uniformly mix the functional masterbatch melt with the polyester melt for spinning to obtain functional polymer through the spinning process. Ester fiber. [0003] In the above process of preparing functional polyester fibers, the functional powder is mainly dispersed in the high-viscosity polyester melt by the mechanical shearing force provided by the mixing equipment, because the mechanical shearing force provided in the conventional equipment is small and uneven. ...

Claims

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Application Information

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IPC IPC(8): C08G63/78C08K3/01C08K5/00D01F6/92D01F1/10B01J8/10B01J4/00
CPCC08G63/785C08K3/01C08K5/0008D01F6/92D01F1/10B01J8/085B01J8/10
Inventor 邱志成武术方李志勇贾振宇李鑫金剑吴鹏飞王雪刘玉来张凯悦
Owner CHINESE TEXTILE ACAD
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