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Production method of antibacterial polyester material

A technology of polyester material and production method, which is applied in the field of polyester production, can solve the problems of long processing time of antibacterial agent additive liquid, color change of additive liquid, increase of additive amount, etc., and achieve good spinnability, less additive amount, low cost effect

Active Publication Date: 2015-07-15
厦门翔鹭化纤股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the dispersion process, it takes up to 6-9 hours to process, among which 2-3 hours are dispersed by a high-speed disperser, and then 3-5 hours of grinding, and then treated with an ultrasonic generator for 15-45 minutes to obtain an antibacterial agent additive liquid , and need to be used up as soon as possible after treatment, the antibacterial agent additive solution takes a long time to process, there are many supporting equipment, the process is complicated, and the cost is high, and the internal structure of the antibacterial agent will change during the ultrasonic treatment process, which is directly manifested in the color of the additive solution Changes occur, and the amount of addition increases, accounting for 0.5 to 1% of the total polyester

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Esterification reaction: Mix terephthalic acid and ethylene glycol at a molar ratio of 1:1.2 and carry out esterification reaction. The reaction pressure is normal pressure, the temperature is 245-260°C, and the time is 2 hours. Esterification product, when the distilled amount of esterified water reaches the following measurement value, it is the end of the reaction: distilled amount of esterified water / kg=feed amount of terephthalic acid / kg×0.217;

[0034] (2) Polycondensation reaction: including in turn:

[0035] a. Cooling stage: add ethylene glycol with 4% of the total mass of polyester to the esterification product obtained in step (1) to lower the temperature to 228°C;

[0036] b. Pressurization stage: Nitrogen in the esterification product after the above-mentioned cooling and maintain a pressure of 0.06MPa, then add the soluble glass carrier additive containing silver ions (accounting for 0.3% of the total polyester mass, with an average particle diameter o...

Embodiment 2

[0042] (1) Esterification reaction: Mix terephthalic acid and ethylene glycol at a molar ratio of 1:1.2 to carry out esterification reaction. The reaction pressure is normal pressure, the temperature is 245-260°C, and the time is 1.9 hours. Esterification product, when the distilled amount of esterified water reaches the following measurement value, it is the end of the reaction: distilled amount of esterified water / kg=feed amount of terephthalic acid / kg×0.217;

[0043] (2) Polycondensation reaction: including in turn:

[0044] a. Cooling stage: add ethylene glycol with 3.5% of the total mass of polyester to the esterification product obtained in step (1) to lower the temperature to 230°C;

[0045] b. Pressurization stage: Nitrogen in the esterification product after the above-mentioned cooling and maintain a pressure of 0.045MPa, then add the soluble glass carrier additive containing silver ions (accounting for 0.25% of the total mass of polyester, with an average particle di...

Embodiment 3

[0051] (1) Esterification reaction: Mix terephthalic acid and ethylene glycol at a molar ratio of 1:1.2 and carry out esterification reaction. The reaction pressure is normal pressure, the temperature is 245-260°C, and the time is 2 hours. Esterification product, when the distilled amount of esterified water reaches the following measurement value, it is the end of the reaction: distilled amount of esterified water / kg=feed amount of terephthalic acid / kg×0.217;

[0052] (2) Polycondensation reaction: including in turn:

[0053] a. Cooling stage: add ethylene glycol with 5% of the total mass of polyester to the esterification product obtained in step (1) to lower the temperature to 221°C;

[0054] b. Pressurization stage: Nitrogen in the esterification product after the above-mentioned cooling and maintain a pressure of 0.07MPa, then add the soluble glass carrier additive containing silver ions (accounting for 0.45% of the total polyester mass, with an average particle diameter ...

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Abstract

The invention discloses a production method of an antibacterial polyester material. The production method comprises the following steps: (1) uniformly mixing terephthalic acid and ethylene glycol in a molar ratio of 1: (1.1-1.3), then carrying out esterification reaction so as to obtain an esterification product, and ending reaction when the quantity of distillate of esterification water reaches the following variable, the quantity of distillate of esterification water / kg= terephthalic acid feed quantity / kg*0.217; and (2) adding an antibacterial agent, titanium dioxide and a catalyst to an esterification product so as to carry out polycondensation reaction, thus obtaining the antibacterial polyester material, wherein the antibacterial agent is a solubility glass carrier additive containing silver ions and accounts for 0.2-0.5% of the total mass of the polyester. The production method has the advantages that the production technology of the antibacterial polyester is simplified, and fibers obtained by machining the produced antibacterial polyester material have stable antibacterial property, good and durable antibacterial effect and deodorization property.

Description

technical field [0001] The invention belongs to the technical field of polyester production, and in particular relates to a preparation method of an antibacterial polyester material. Background technique [0002] With the improvement of people's living standards and quality of life, people have higher and higher requirements for the suitability, health, safety and environmental protection of fiber products such as clothing raw materials, and antibacterial has become one of the hot words in this century. . At present, the manufacture of antibacterial fibers is mostly made by adding antibacterial masterbatches in the spinning process or impregnating them in the finishing of fiber fabric products. The former has poor antibacterial effect, uneven dispersion of antibacterial active ingredients, and poor filterability during spinning. Poor, easy to fluff and floating yarn, some powder will be precipitated during false twisting processing, the broken yarn rate is high, and there i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/183C08G63/85C08K9/12C08K3/22D01F6/92D01F1/10
Inventor 刘志麟
Owner 厦门翔鹭化纤股份有限公司