Preparation method of polyester chip with multiple functions

A technology of polyester chips and composite functions, applied in the direction of one-component polyester rayon, etc., can solve the problems of poor hygroscopicity, easy to generate static electricity, damage and other problems

Active Publication Date: 2012-05-09
JIANGSU GANGHONG FIBER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with various natural fibers, there are still many shortcomings: hard hand feeling, poor hygroscopicity, poor UV resistance, easy to generate static electricity, easy to pilling, difficult to dye, etc.
The disadvantage of this method is: benzotriazole is an organic phenolic compound, which exists as a protonic acid under high temperature conditions, which can destroy the inorganic nano-powder TiO 2 and A1 2 o 3 or SiO 2 Surface organic treatment agent, leading to the agglomeration of inorganic nanopowders in the pre-aggregation process
[0009] In summary, the existing technologies mainly rely on the huge specific surface area of ​​inorganic nano-powders to diffusely scatter ultraviolet rays to produce an anti-ultraviolet effect, and the stability and efficiency of the anti-ultraviolet effect need to be improved. Starting from the mechanism, the preparation of polyester with better anti-ultraviolet effect and good spinnability

Method used

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  • Preparation method of polyester chip with multiple functions
  • Preparation method of polyester chip with multiple functions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The present embodiment provides a kind of preparation method of the polyester chip with composite function, and it comprises the following steps:

[0035](1), Primary esterification reaction section: Take 18kg of purified terephthalic acid (PTA), 7.5kg of ethylene glycol (EG) and 225g of 1,4-cyclohexanedicarboxylic acid, add 70 liters of polyester experimental equipment, and stir After uniformity, start to raise the temperature and pressurize to 0.3Mpa to carry out esterification. The esterification temperature is controlled at 255°C to 260°C. After the esterification is completed, return to normal pressure and end the reaction.

[0036] (2) Secondary esterification reaction section: After the primary esterification is completed, ethylene glycol is first added to lower the temperature of the reactor to 230-235°C, and then 450g of polyethylene glycol with a number average molecular weight of 2500 that has been heated and melted The diol was added into the reactor under t...

Embodiment 2

[0039] The present embodiment provides a kind of preparation method of the polyester chip with composite function, and it comprises the following steps:

[0040] (1), primary esterification reaction section: take 18kg of purified terephthalic acid (PTA), 7.5kg of ethylene glycol (EG) and 225g of 5-methylisophthalic acid, add 70 liters of polyester experimental equipment, and stir evenly Afterwards, start to raise the temperature and pressurize to 0.3Mpa to carry out esterification. The esterification temperature is controlled at 255°C to 260°C. After the esterification is completed, return to normal pressure and complete the reaction.

[0041] (2) Secondary esterification reaction section: After the primary esterification is completed, ethylene glycol is first added to lower the temperature of the reactor to 230-235°C, and then 450g of polyethylene glycol with a number average molecular weight of 2500 that has been heated and melted The diol was added into the reactor under th...

Embodiment 3

[0044] The present embodiment provides a kind of preparation method of the polyester chip with composite function, and it comprises the following steps:

[0045] (1), primary esterification reaction section: get 18kg of purified terephthalic acid (PTA), 7.5kg of ethylene glycol (EG) and 225g of adipic acid, add 70 liters of polyester experimental equipment, after stirring evenly, start to heat up and Pressurize to 0.3Mpa to carry out esterification, and the temperature of esterification is controlled at 255°C to 260°C. After the esterification is completed, return to normal pressure and complete the reaction.

[0046] (2) Secondary esterification reaction section: After the primary esterification is completed, ethylene glycol is first added to lower the temperature of the reactor to 230-235°C, and then 450g of polyethylene glycol with a number average molecular weight of 3000 that has been heated and melted is added The diol was added into the reactor under the protection of n...

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Abstract

The invention relates to a preparation method of a polyester chip with multiple functions. The method comprises a first esterification reaction segment, a second esterification reaction segment and a polymerization operation. In the first esterification reaction segment, aliphatic dicarboxylic acid and / or non-para aryl dicarboxylic acid is introduced as a third monomer; in the second esterification reaction segment, flexible polyethylene glycol is introduced as a fourth monomer; after the esterification, hindered amine light stabilizer and hindered phenol anti-oxidant, which are respectively blended by solvents of acetic acid and glycol, and hydroxy silicone oil are added; and an ultraviolet ray absorber and an antistatic agent are added after prepolymerization and before final polymerization in the polymerization operation. The polyester chip of the present invention can be spun into polyester fibre by a routine spinning operation; the obtained polyester fibre has excellent ultraviolet resistance, static resistance, ageing resistance, pilling resistance, moisture absorption and quick drying performance, and fabric has high comfortableness.

Description

technical field [0001] The invention relates to a method for preparing polyester chips with composite functions. Background technique [0002] The development of comfortable polyester fiber, after the rapid development of fine denier and ultra-fine denier in the chemical fiber industry, has become a key area of ​​development in the international and domestic industries in recent years. Since the international financial crisis in 2008, developed countries have accelerated the upgrading of textile technology In the footsteps of China, a variety of high-quality functional fiber fabrics have been put on the market in batches, and great progress has been made in the fine finishing and processing of natural fibers including cotton, wool, silk, and hemp. The quality and function of fabrics have achieved leapfrog upgrades. At the same time, the breakthrough of natural fiber pulp spinning technology has also brought a huge impact on the market of polyester chemical fiber products. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/695C08G63/672C08G63/78C08K5/3475C08K5/3492D01F6/92
Inventor 边树昌
Owner JIANGSU GANGHONG FIBER CO LTD
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