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Modified PTA (pure terephthalic acid), modified polyester and flame-retardant and anti-aging polyester fiber prepared from modified polyester

A technology of modified polyester and anti-aging agent, used in the manufacture of fire-retardant and flame-retardant filaments, single-component polyester rayon, etc., can solve the problem of single PTA products, no consideration, no refinement products and special product research Development and other issues to achieve good functional effects, improve dispersion and compatibility

Inactive Publication Date: 2018-07-20
ZHEJIANG MODERN TEXTILE IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For PTA products, the preparation of existing PTA is mainly considered from the purification process, that is, to reduce the content of impurities such as p-carboxybenzaldehyde, so as to reduce the impact of impurities on the reaction in the subsequent polycondensation reaction of PTA, and it is hardly considered by developing some new ones. PTA varieties or modified PTA are used in some special materials, such as the preparation of modified materials with special functions, etc.
Therefore, the PTA product has always been single and almost unchanged, and there has been no research and development of refined products and special products.

Method used

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  • Modified PTA (pure terephthalic acid), modified polyester and flame-retardant and anti-aging polyester fiber prepared from modified polyester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The preparation method of modified PTA described in the present embodiment comprises the steps:

[0055] (1) Get 15kg of nano-scale hectorite powder, 15kg of nano-scale illite powder, 10kg of nano-scale silicon dioxide powder, and 300kg of dehydrated alcohol solution of laurylamine polyoxyethylene ether with a mass concentration of 15wt%, mix and stir for 0.5h , disperse by ultrasonic waves for 3 hours, and carry out vacuum spray drying at 100°C after centrifugal dehydration to obtain the required flame retardant and antiaging agent;

[0056] (2) get mass concentration and be that the oxalic acid aqueous solution 60kg of 10wt%, mass concentration are the flame retardant anti-aging agent 6kg that step (1) obtains 6kg, bismuth vanadate 5kg, nanoscale conductive mica powder 2kg that are the hypochlorous acid aqueous solution 24kg of 2wt%. , nano-scale illite powder 6kg, mixed with a high-energy ball mill at a liquid phase of 50 ° C for 6 hours, then moved to a titanium-lin...

Embodiment 2

[0060] The preparation method of modified PTA described in the present embodiment comprises the steps:

[0061] (1) Get 20kg of nanoscale hectorite powder, 8kg of nanoscale illite powder, 15kg of nanoscale silicon dioxide powder, and 150kg of dehydrated alcohol solution of laurylamine polyoxyethylene ether with a mass concentration of 30wt%, mix and stir for 1.5h , disperse by ultrasonic waves for 1.5h, and carry out vacuum spray drying at 150°C after centrifugal dehydration to obtain the required flame retardant and antiaging agent;

[0062] (2) get mass concentration and be that the oxalic acid aqueous solution 80kg of 6wt%, mass concentration are the flame retardant anti-aging agent 12kg that step (1) obtains 12kg, bismuth vanadate 2kg, nanoscale conductive mica powder 3kg that are the hypochlorous acid aqueous solution 12kg of 4wt%. , nano-scale illite powder 4kg, mixed with a high-energy ball mill at a liquid phase of 65°C for 3 hours, then moved to a titanium-lined hydro...

Embodiment 3

[0066] The preparation method of modified PTA described in the present embodiment comprises the steps:

[0067] (1) get nanoscale hectorite powder 18kg, nanoscale illite powder 12kg, nanoscale silicon dioxide powder body 12kg, and mass concentration be 225kg of dehydrated alcohol solution of laurylamine polyoxyethylene ether of 22wt%, mix and stir 1h, Disperse with ultrasonic waves for 2.5 hours, and then carry out vacuum spray drying at 125°C after centrifugal dehydration to obtain the required modified additives;

[0068] (2) get mass concentration and be that the oxalic acid aqueous solution 70kg of 8wt%, mass concentration are the flame retardant anti-aging agent 9kg that step (1) obtains 9kg, bismuth vanadate 3.5kg, nanoscale conductive mica powder that are the hypochlorous acid aqueous solution 18kg of 3wt% Mix 2.5kg and 5kg of nano-scale illite powder, grind for 5 hours in the liquid phase at 58°C with a high-energy ball mill, then move to a titanium-lined hydrothermal ...

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Abstract

The invention belongs to the technical field of modified polyester production, particularly relates to modified PTA (pure terephthalic acid) and further discloses a preparation method of the modifiedPTA as well as modified polyester and flame-retardant and anti-aging polyester fiber prepared from the modified PTA. In synthesis of polyester and fiber, the modified PTA can timely transfer energy oflight and thermal radiation, shield ultraviolet, enhance chemical stability of macromolecular bonds in materials and improve resistance to erosion of environmental factors such as sunshine, rain andwind, has an excellent anti-aging function, can enhance mechanical properties such as strength and impact resistance of materials and can prevent further spread of oxygen and fire behaviors.

Description

technical field [0001] The invention belongs to the technical field of modified polyester production, specifically relates to a modified PTA, and further discloses a preparation method thereof, as well as the prepared modified polyester and flame-retardant and anti-aging polyester fiber. Background technique [0002] Polyester, namely polyester fiber, as a kind of textile raw material, is currently the largest variety of synthetic fibers. Due to the rigidity of the fiber macromolecular chain, the high elastic modulus, and the fiber is not easy to deform, polyester has good fabric strength, no wrinkle after washing, no ironing, firm and scratchable, easy to wash and dry, It is an ideal textile material for clothing. Polyester can be used to make special materials such as body armor, seat belts, tire cords, fishing nets, ropes, filter cloths and insulating materials, etc. In the prior art, polyester is mainly made of polyester through spinning as raw material. [0003] Poly...

Claims

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Application Information

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IPC IPC(8): C08G63/183C08G63/78C08K13/06C08K9/06C08K3/34C08K3/36C08K3/24C08K3/22C08K3/04D01F6/92D01F1/07D01F1/10
CPCC08G63/183C08G63/78C08K3/04C08K3/22C08K3/24C08K3/34C08K3/36C08K9/06C08K13/06C08K2003/222C08K2201/001C08K2201/011C08K2201/014D01F1/07D01F1/10D01F6/92
Inventor 胡超庞学松李琪陶仁中范艳苹张芳
Owner ZHEJIANG MODERN TEXTILE IND RES INST
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