Elastic renewable polyester and preparation method thereof

A technology of recycled polyester and elasticity, applied in the field of textile fiber or chemical fiber, can solve the problem of low moisture absorption rate of polyester, and achieve the effect of improving elasticity and hand feeling

Active Publication Date: 2016-08-31
SUZHOU SHENGHONG FIBER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyester has the advantages of good strength, heat resistance, wear resistance, and good dimensional stability, so it is widely used in decoration, clothing industry and other fields, especially polyester (polyet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (I) Group distribution ratio:

[0027] Dimethyl terephthalate 97,

[0028] Dimethyl isophthalate 0,

[0029] Ethylene glycol 31,

[0030] Propylene Glycol 0,

[0031] Isosorbide 0,

[0032] Glucosamine 0,

[0033] Zinc acetate 0.01,

[0034] Antimony oxide 0.01,

[0035] 2,6-di-tert-butyl-4-methylphenol 0.01.

[0036] (II) Preparation steps:

[0037] (1) Exhaust the air in the polyester reaction device with nitrogen, and under the protection of nitrogen, 97 parts of dimethyl terephthalate, 31 parts of ethylene glycol, 0.01 parts of zinc acetate and 0.01 parts of 2,6- Put di-tert-butyl-4-methylphenol into the reaction bottle, start heating, stirring rate 300r / min, keep warm for 30 minutes when the temperature rises to 165°C, then raise the temperature to 185°C, react for 60 minutes, and protect the whole process with nitrogen , the unit is parts by mass;

[0038] (2) Add 0.01 part of antimony oxide, raise the temperature to 265°C, gradually reduce the pressure ...

Embodiment 2

[0043] (I) Group distribution ratio

[0044] Dimethyl terephthalate 97,

[0045] Dimethyl isophthalate 39,

[0046] Ethylene glycol 40,

[0047] Propylene glycol 0,

[0048] Isosorbide 29,

[0049] Glucosamine 25,

[0050] Zinc acetate 0.03,

[0051] Antimony glycol 0.03,

[0052] 2,6-di-tert-butyl-4-methylphenol 0.02,

[0053] (II) Preparation steps:

[0054] (1) Exhaust the air in the polyester reaction device with nitrogen, and under the protection of nitrogen, 97 parts of dimethyl terephthalate, 39 parts of dimethyl isophthalate, 40 parts of ethylene glycol, 29 parts The isosorbide of 25 parts, the glucosamine of 25 parts, the zinc acetate of 0.03 part and 0.02 part of 2,6-di-tert-butyl-4-methylphenol are put into reaction bottle, start heating, stirring rate 300r / min, temperature rises Keep warm for 45 minutes at 175°C, then raise the temperature to 195°C, react for 120 minutes, and protect the whole process with nitrogen gas, the unit is parts by mass;

[0055]...

Embodiment 3

[0060] (I) Group distribution ratio

[0061] Dimethyl terephthalate 155,

[0062] Dimethyl isophthalate 39,

[0063] Ethylene glycol 50,

[0064] Propylene glycol 15,

[0065] Isosorbide 29,

[0066] Glucosamine 55,

[0067] Manganese acetate 0.08,

[0068] Titanium oxide 0.08,

[0069] 2,6-di-tert-butyl-4-methylphenol 0.05,

[0070] (II) Preparation steps:

[0071](1) Exhaust the air in the polyester reaction device with nitrogen, and under the protection of nitrogen, 155 parts of dimethyl terephthalate, 39 parts of dimethyl isophthalate, 50 parts of ethylene glycol, 15 parts The propylene glycol of 29 parts, the isosorbide of 29 parts, the glucosamine of 55 parts, the esterification catalyst of 0.08 part and 0.05 part of 2,6-di-tert-butyl-4-methylphenol are put into reaction bottle, start heating, stir The speed is 300r / min, when the temperature rises to 165°C, it is kept for 40 minutes, then the temperature is raised to 190°C, and the reaction is carried out for 90...

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Abstract

The invention relates to an elastic renewable polyester and a preparation method thereof. The elastic renewable polyester is a polyester copolymer containing isosorbitol, glycosamine and other renewable compounds, and m-benzenedicarbonyl and other monomers. The preparation method mainly comprises the following steps: proportionally adding dimethyl terephthalate, dimethyl isophthalate, ethanediol, propanediol, isosorbitol, glycosamine and other monomers and a catalyst into a reaction bulb in a nitrogen protective atmosphere, carrying out programmed heating, and reacting while lowering the pressure according to needs; and after reacting for some time, cooling to room temperature, slowly restoring to atmospheric pressure, discharging in the nitrogen protective atmosphere, washing, filtering, and carrying out vacuum drying to obtain the finished product. The obtained polyester has the advantages of favorable hydroscopic property and favorable elasticity, and is renewable, degradable, green and environment-friendly.

Description

technical field [0001] The invention relates to a polyester and a preparation method thereof, in particular to a polyester component capable of improving the elasticity of the polyester and enhancing the reproducibility of the polyester and a preparation method thereof, belonging to the technical field of textile fibers or chemical fibers. Background technique [0002] Polyester has the advantages of good strength, heat resistance, wear resistance, and good dimensional stability, so it is widely used in decoration, clothing industry and other fields, especially polyester (polyethylene terephthalate) is the most widely used ; But the moisture absorption rate of most polyesters is low. For example, polyester has only about 0.4% in the standard state, which is at a low position among all chemical fibers. The hygroscopicity of fibers is an important characteristic of fibers for clothing. It can not only affect the strength of fibers, but also affect the comfort of wearing. The...

Claims

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Application Information

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IPC IPC(8): C08G63/685C08G63/78
CPCC08G63/6856C08G63/78
Inventor 蒋学张叶兴梅锋田会双田秀枝王鸿博高卫东
Owner SUZHOU SHENGHONG FIBER CO LTD
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