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PET material and its preparation method, pellets and fiber products

A technology of pellets and isocyanurate, which is applied in the field of PET materials, can solve the problems of flammability of PET fibers, and achieve the effects of easy operation, single performance, and high-efficiency flame retardancy

Active Publication Date: 2022-05-03
东莞市道尔新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PET fiber is flammable, and there have been many fire accidents in textiles

Method used

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  • PET material and its preparation method, pellets and fiber products
  • PET material and its preparation method, pellets and fiber products
  • PET material and its preparation method, pellets and fiber products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: a kind of novel PET fiber preparation method that this embodiment provides, it comprises the following steps:

[0029] (1) 1 part of 5-chloro-2-methyl-4-isothiazolin-3-one derivative (R 1 :-CH 3 ; 2 :-H), 1 part of sodium hydroxide was added to 50 parts of water, heated to 80°C and vigorously stirred, added to 60 parts of dissolved 1 part of isocyanurate and 1 part of sodium hydroxide in 5 times within 12 hours For suspension in water, stir vigorously and heat to 90°C, keep warm until 3 hours after the addition is completed, cool, and after standing overnight, concentrate the solution in vacuo to enrich the residual components, add boiling N,N-dimethylformaldehyde The amide is dissolved, cooled after filtration, and rotary evaporated to obtain isocyanurate derivatives modified by isothiazolinone (IR: 1641cm -1 :-C=C-exists; 637cm -1 :-C-S-exists), denoted as A;

[0030] (2) Dissolve 1 part of A and 1 part of sodium hydroxide in 80 parts of water, stir...

Embodiment 2

[0033] Embodiment 2: a kind of novel PET fiber preparation method that this embodiment provides, it comprises the following steps:

[0034] (1) 1.2 parts of 5-chloro-2-methyl-4-isothiazolin-3-one derivatives (R 1 :-C 6 h 11 ; 2 :-F), 1 part of sodium hydroxide was added to 50 parts of water, heated to 90°C and vigorously stirred, added to 60 parts of 1 part of isocyanurate and 1 part of sodium hydroxide dissolved in 3 times within 8 hours For suspension of water, stir vigorously and heat to 95°C, keep warm until 3 hours after the addition is completed, cool, and stand overnight, then concentrate the solution in vacuo, the residual components are enriched, add boiling isopropanol to dissolve, filter Cooling, rotary steaming, obtained isocyanurate derivatives modified by isothiazolinone (IR: 1641cm -1 :-C=C-exists; 637cm -1 :-C-S-exists), denoted as A;

[0035] (2) Dissolve 1 part of A and 1 part of sodium hydroxide in 80 parts of water, stir the suspension vigorously and ...

Embodiment 3

[0038] Embodiment 3: a kind of novel PET fiber preparation method that this embodiment provides, it comprises the following steps:

[0039] (1) 1.1 parts of 5-chloro-2-methyl-4-isothiazolin-3-one derivatives (R 1 :-C 6 h 5 ; 2 :-Cl), 1 part of sodium hydroxide was added to 50 parts of water, heated to 70°C and vigorously stirred, added to 60 parts of dissolved 1 part of isocyanurate and 1 part of sodium hydroxide in 4 times within 10 hours For suspension in water, stir vigorously and heat to 93°C, keep warm until 3 hours after the addition is completed, cool, and after standing overnight, concentrate the solution in vacuo to enrich the residual components, add boiling dioxane to dissolve, filter After cooling, rotary steaming, obtain isothiazolinone modified isocyanurate derivatives (IR: 1641cm -1 :-C=C-exists; 637cm -1 :-C-S-exists), denoted as A;

[0040] (2) Dissolve 1 part of A and 1 part of sodium hydroxide in 80 parts of water, stir the suspension vigorously and he...

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Abstract

The invention discloses a novel PET material and its preparation method, pellets and fiber products. The invention uses isocyanurate, 5-chloro-2-methyl-4-isothiazoline-3-one derivatives, Chlorohydrin, terephthalic acid and ethylene glycol are used as raw materials to get rid of the defect of single performance of traditional PET fiber. At the same time, the reaction steps are simple and easy to operate, and by adjusting the polymer structure, the defect of single performance of existing PET fiber is solved. , where the addition of isocyanurate not only ‑NH 2 It has high reactivity and can be used as a reaction center, and it also has a high nitrogen content, which has an outstanding effect on the flame retardancy of the material. The addition of 5-chloro-2-methyl-4-isothiazolin-3-one derivatives not only has a broad-spectrum bactericidal and anti-mold effect, but also the presence of N in the five-membered ring can further enhance its flame-retardant effect. In addition, the existence of different substituents endows the flexibility of its molecular structure, which is conducive to wide application.

Description

technical field [0001] The invention relates to the technical field of PET materials, in particular to a novel PET material, a preparation method thereof, pellets and fiber products. Background technique [0002] Due to the low technical content, single function and flammability of conventional fibers, they can no longer meet the needs of domestic and foreign markets for product diversification and functionalization. Giving new functions to conventional chemical fibers is one of the key points and hot spots in the field of new chemical fiber materials research. . The flame retardancy of textiles on the market is mostly improved by post-additive additives. The product obtained in this way has the disadvantages of being not wear-resistant and washable, and most of the flame retardants used are halogen-based flame retardants, which are harmful to human health and the environment. [0003] At the same time, most of the fibers are made into clothes used by people, and some are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/688D01F6/92D01F1/10
CPCC08G63/6886D01F6/92D01F1/10
Inventor 查皓查家华谢旭鹏
Owner 东莞市道尔新材料科技有限公司
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