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Method for preparing functional polyester masterbatch from regenerative polyester bottle chips and device for method

A technology of polyester masterbatch and recycled polyester, which is applied in the field of textile raw material processing, and can solve problems such as antistatic, anti-ultraviolet, antibacterial, purity of polyester masterbatch, and technical inspiration of polyester masterbatch. , to achieve the effect of improving the purity

Active Publication Date: 2010-08-25
JIANGSU XINKAISHENG ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, in the prior art, there is no technical revelation of the system for preparing polyester masterbatch from recycled polyester bottle flakes, nor how to improve the purity of polyester masterbatch prepared from recycled polyester bottle flakes. There are no technical inspirations that can be used for reference, and there is no technical inspiration to make polyester masterbatches prepared from recycled polyester bottle flakes have functions such as far-infrared properties, antistatic, anti-ultraviolet, antibacterial, and / or flame retardant.

Method used

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  • Method for preparing functional polyester masterbatch from regenerative polyester bottle chips and device for method
  • Method for preparing functional polyester masterbatch from regenerative polyester bottle chips and device for method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]Specifically in conjunction with Fig. 1, will be introduced from the screw extruder feeding port 12 of the first screw extruder 1 by commercially available regenerated polyester bottle flakes, under the work of the working motor 13 of the first screw extruder 1, make The first screw extruder 1 works to melt the regenerated polyester bottle flakes into a regenerated polyester bottle flake melt (also known as a melt), and extrude from the extruder outlet 11, and pass through the aforementioned mesh After being filtered by the 700-mesh melt screen 111 , it enters the barrel 21 of the mixer 2 . In this embodiment, the temperature of the first screw extruder 1, that is, the extrusion temperature is controlled at 300°C, the extrusion pressure is controlled at 15MPa, the screw speed is controlled at 70n / min, and the polyester melt entering the barrel 21 Under the operation of the stirring motor 22 of the mixer 2, the speed reducer 221 decelerates to drive the stirring shaft 23 ...

Embodiment 2

[0025] Only change the extrusion temperature, pressure and screw speed of the first screw extruder 1 to 330°C, 12MPa and 50n / min respectively, and change the mesh number of the melt filter 111 to 500 mesh; The amount of nano-scale ceramic powder is changed to 0.5%, nano-scale iron oxide (antistatic agent) 1%, nano-scale titanium oxide (anti-ultraviolet) 0.5%, copper oxide 0.3%, lithium carbonate 0.2% and as a flame retardant Aluminum hydroxide 1% and magnesium hydroxide 1%, the pressure in cylinder body 21, temperature and the rotating speed of stirring shaft 23 are respectively changed into 10MPa, 285 ℃ and 6n / min, and the mesh number of stirring liquid filter screen 2131 is changed into 300 mesh; adjust the extrusion temperature, pressure and screw speed of the second screw extruder 3 to 270°C, 12MPa and 50n / min respectively to obtain a function with far-infrared function, anti-ultraviolet function, antibacterial function and flame-retardant function Polyester masterbatch, a...

Embodiment 3

[0027] Only change the extrusion temperature, pressure and screw speed of the first screw extruder 1 to 315°C, 13.5MPa and 60n / min respectively, and the mesh number of the melt filter 111 to 600 mesh; The material is changed to 1% nano-scale antimony oxide, the pressure and temperature in the cylinder 21 and the rotating speed of the stirring shaft 23 are respectively changed to 11MPa, 280°C and 8n / min, and the mesh number of the stirring liquid filter 2131 is changed to 250 mesh Change the extruding temperature and pressure of the second screw extruder 3 and the screw speed to 285°C, 11.5MPa and 70n / min respectively to obtain a functional polyester masterbatch with a flame-retardant function, and all the other are the same as those of Example 1 describe.

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Abstract

The invention discloses a method for preparing functional polyester masterbatch from regenerative polyester bottle chips and a device for the method, and belongs to the technical field of textile material processing. The method for preparing the functional polyester masterbatch from the regenarative polyester bottle chips comprises the following steps of: feeding the regenerative polyester bottle chips into a first screw extruder; melting the regenerative polyester bottle chips into polyester melt and extruding by using the first screw extruder; filtering the melt at the extruder discharge outlet of the first screw extruder by using a melt filter screen, making the filtered melt enter a blender, and adding a functional assistant into the polyester melt which enters the blender, and uniformly stirring to obtain functional polyester melt; and filtering the functional polyester melt with a filter screen, introducing the functional polyester melt into a second screw extruder, extruding the functional polyester melt by using the second screw extruder, and obtaining the functional polyester masterbatch through cutting, washing and drying. The purity of the obtained polyester master batch is improved, the problems such as end breakage, non-uniform evenness and poor intensity are solved in the subsequent spinning technology, and the polyester masterbatch has the performance such as heat retention, environmental protection and safety, and the like.

Description

technical field [0001] The invention belongs to the technical field of textile raw material processing, and in particular relates to a method for preparing functional polyester master batches from recycled polyester bottle flakes, and also relates to a device used in the method. Background technique [0002] The recycled PET bottle flakes are processed and reused as raw materials for textile staple fibers or filaments, which can not only save resources, but also reflect environmental protection. At present, there are two main physical recycling methods for discarded polyester bottles: one is to break the polyester bottles into pieces, and remove the polyethylene, metals such as aluminum, paper such as labels and adhesives, and then Fragment washing, drying and granulation; the second is to first separate the non-polyester bottle caps and labels on the polyester bottle by mechanical means, and then wash, crush and granulate the polyester bottle. [0003] The above two method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06B29C47/92B29C47/36B29C48/385B29C48/395B29C48/69B29C48/92
CPCB29C47/38B29C47/366B29B7/7485B29B7/7461B29C47/68B29C48/385B29C48/395B29C48/69
Inventor 张卫东
Owner JIANGSU XINKAISHENG ENTERPRISE DEV
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