Preparation method and application of modified polyester masterbatch

A polyester and masterbatch technology, applied in the field of fiber manufacturing, can solve the problems of poor anion release in fabrics and achieve good compatibility

Inactive Publication Date: 2020-12-29
SUQIAN HENGDA TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current technology focuses on modifying the negative ion powder to distribute the negative ion powder in the polyester as evenly as possible. There is no good solution for the hydrophobicity of the polyester and the poor release of negative ions in the fabric.

Method used

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  • Preparation method and application of modified polyester masterbatch
  • Preparation method and application of modified polyester masterbatch
  • Preparation method and application of modified polyester masterbatch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Mix 67.2 kilograms of tourmaline powder (120nm in particle size) with 62 kilograms of ethylene glycol (1000 moles), and stir at room temperature for 0.5 hour to fully infiltrate the negative ion powder. Then add 198.2 kilograms of 2,5-dihydroxyterephthalic acid (1000 moles), 83 grams of catalyst antimony trioxide, 220 grams of matting agent titanium dioxide, heat up to 80 ° C and stir for 1 hour to dissolve the catalyst, and then continue to heat up to React at 250°C, observe water, after 4 hours, the esterification rate reaches 90%, continue to heat up to 290°C for 5 hours, the melt viscosity reaches 0.58, stop the reaction, cool and cut into pellets, and prepare negative ion powder masterbatch wrapped in modified polyester . Its in-situ polymerization reaction formula is as follows:

[0055]

[0056] On the conventional polyester fiber production line, the negative ion powder masterbatch is added before the screw extruder through the color masterbatch adding devic...

Embodiment 2

[0058] Change the tourmaline powder add-on in embodiment 1 to be 85 kilograms, all the other material add-on and operation steps, process parameter are the same as embodiment 1. When the melt viscosity reaches 0.61, the reaction is terminated, cooled and pelletized, and the modified polyester-wrapped negative ion powder polyester masterbatch is obtained.

[0059] On the conventional polyester fiber production line, the negative ion powder polyester masterbatch is added before the screw extruder through the color masterbatch adding device, the addition amount is 15% (weight ratio) of the conventional polyester feed amount, and the spinning speed is 3300 meters. The temperature was 285°C. Negative oxygen ion polyester fibers were obtained, and the measured negative ion release was 5200 / cm 3 .

Embodiment 3

[0061] Mix 67.2 kilograms of tourmaline powder (120nm in particle size) with 62 kilograms of ethylene glycol (1000 moles), and stir at room temperature for 0.5 hour to fully infiltrate the negative ion powder. Then add 182 kilograms of 2,5-dihydroxyterephthalic acid (1000 moles), 83 grams of catalyst antimony trioxide, 220 grams of matting agent titanium dioxide, heat up to 85 ° C and stir for 1 hour to dissolve the catalyst, and then continue to heat up to React at 250°C, observe the water, after 3 hours, the esterification rate reaches 90%, continue to heat up to 290°C for 5 hours, the melt viscosity reaches 0.55, stop the reaction, cool and cut into pellets, and obtain a modified polyester-wrapped anion powder polyester masterbatch grain. Its in-situ polymerization reaction formula is as follows:

[0062]

[0063] The spinning process is the same as in Example 1, and the negative oxygen ion polyester fiber obtained by spinning has a measured negative ion release of 3700...

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Abstract

The invention discloses a modification method of negative ion powder and application of the negative ion powder in preparation of negative oxygen ion polyester fibers. The steps are as follows: mixingnano negative ion powder with ethylene glycol; adding 2,5-dihydroxyterephthalic acid (or 2-hydroxyterephthalic acid), a catalyst and a delustering agent, carrying out in-situ polymerization, and conducting cooling and dicing after the polymerization is finished, so as to obtain negative ion powder master batch of which the outer layer is coated with modified polyester; adding the negative ion powder master batch in front of an inlet of a screw extruder through a color master batch adding device on a polyester spinning line; and conducting conventional processes of melt extrusion, spinning andthe like to obtain the negative oxygen ion polyester fiber. According to the scheme, the compatibility of the modified polyester wrapping the outer surface of the negative ion powder and conventionalpolyester is good, the negative ion powder can be evenly distributed in the polyester fiber, the modified polyester has certain hydrophilicity, and generation of negative oxygen ions is facilitated.The preparation method is simple in overall preparation process and suitable for being popularized in existing polyester fiber production enterprises.

Description

technical field [0001] The invention belongs to the technical field of fiber manufacture, and in particular relates to a method for modifying anion powder and its application in the manufacture of anion polyester fibers. Background technique [0002] Negative oxygen ion is a negatively charged gas ion in the air. Negative oxygen ion has a very important impact on the life activities of the human body and other organisms, so it is also called "air vitamin". When we are dizzy in an air-conditioned room or an ultra-clean laboratory, we feel refreshed when we come to the forest or seaside. This is the effect of the invisible, colorless and odorless negative oxygen ions in nature. [0003] Due to various factors such as air pollution and closed rooms, the amount of negative oxygen ions that our bedrooms, offices, entertainment venues and other environments can provide is far less than our body's needs. This huge contrast between supply and demand often easily leads to respirator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/22C08K9/10C08K3/38D01F6/92D01F1/10C08L67/02
CPCC08J3/226C08J2367/02C08J2467/02C08K3/38C08K9/10D01F1/10D01F6/92
Inventor 滕召部张玉进
Owner SUQIAN HENGDA TEXTILE
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