Imidazolium-based anionic dye-dyeable modified copolyester masterbatch and its preparation and application

An anionic dye and imidazole-based technology, which is applied in the field of copolyester masterbatch and its preparation, can solve the problems of few reports on imidazole-based comonomer research, and achieve convenient and efficient processing, simple synthesis, and good reaction controllability Effect

Active Publication Date: 2017-12-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there have been some studies and reports in this field, there are few reports on imidazole-based comonomers

Method used

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  • Imidazolium-based anionic dye-dyeable modified copolyester masterbatch and its preparation and application
  • Imidazolium-based anionic dye-dyeable modified copolyester masterbatch and its preparation and application
  • Imidazolium-based anionic dye-dyeable modified copolyester masterbatch and its preparation and application

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A kind of imidazolyl anionic dye-dyeable modified copolyester masterbatch, its structure is formula (I), and its comonomer comprises terephthalic acid, ethylene glycol, N-2-(3,5-dicarboxyphenyl)ethyl-N'-methylimidazolium chloride and 2-methyl-1,4-butanediol.

[0035] Adopt continuous polymerization equipment (comprising: first esterification tank, second esterification tank and polycondensation tank) to synthesize described imidazolyl anionic dye-dyeable type modified copolyester masterbatch, preparation method is:

[0036] Step a: Add 500 grams of terephthalic acid and 300 grams of ethylene glycol into the first esterification kettle, add 0.2 grams of triphenyl phosphate and 0.3 grams of antimony trioxide to carry out esterification reaction, and the reaction temperature is 250 ° C , the reaction time is 3h;

[0037] Step b: Then, the material obtained from the esterification reaction in step a enters the second esterification tank, and 2-methyl-1,4-butanediol equival...

Embodiment 2

[0043] A kind of imidazolyl anionic dye-dyeable modified copolyester masterbatch, its structure is formula (I), and its comonomer comprises terephthalic acid, ethylene glycol, N-2-(3,5-dicarboxyphenyl)ethyl-N'-methylimidazolium chloride and 2-methyl-1,4-butanediol.

[0044] Adopt continuous polymerization equipment (comprising: first esterification tank, second esterification tank and polycondensation tank) to synthesize described imidazolyl anionic dye-dyeable type modified copolyester masterbatch, preparation method is:

[0045] Step a: Add 400 grams of terephthalic acid and 240 grams of ethylene glycol into the first esterification kettle, add 0.15 grams of triphenyl phosphate and 0.2 grams of antimony trioxide to carry out esterification reaction, and the reaction temperature is 255 ° C , the reaction time is 3h;

[0046] Step b: Then, the material obtained from the esterification reaction in step a enters the second esterification tank, and 2-methyl-1,4-butanediol equiva...

Embodiment 3

[0053] A kind of imidazolyl anionic dye-dyeable modified copolyester masterbatch, its structure is formula (I), and its comonomer comprises terephthalic acid, ethylene glycol, N-2-(3,5-dicarboxyphenyl)ethyl-N'-methylimidazolium chloride and 2-methyl-1,4-butanediol.

[0054] Adopt continuous polymerization equipment (comprising: first esterification tank, second esterification tank and polycondensation tank) to synthesize described imidazolyl anionic dye-dyeable type modified copolyester masterbatch, preparation method is:

[0055] Step a: Add 600 grams of terephthalic acid and 400 grams of ethylene glycol into the first esterification kettle, add 0.3 grams of triphenyl phosphate and 0.3 grams of antimony trioxide to carry out esterification reaction, and the reaction temperature is 252 ° C , the reaction time is 2.5h;

[0056] Step b: Then, the material obtained from the esterification reaction in step a is entered into the second esterification tank, and 2-methyl-1,4-butaned...

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Abstract

The invention provides an imidazole-based anionic dye dyeable modified copolyester masterbatch, and preparation and application thereof. The imidazole-based anionic dye dyeable modified copolyester masterbatch is characterized in that a comonomer of the imidazole-based anionic dye dyeable modified copolyester masterbatch comprises terephthalic acid, glycol, N-2-(3,5-dicarboxyl phenyl) ethyl-N'-methylimidazole chlorine salt and 2-methyl-1,4-butanediol according to the molar ratio of 1:1.2-2.5:0.1-0.4:0.03-0.25. The imidazole-based anionic dye dyeable modified copolyester masterbatch prepared by the invention is blended with unmodified PET polyester to obtain a polyester product which has good anionic dye dyeability, the polyester product can be dyed at normal temperature and under normal pressure or can be subjected to boiling dyeing under normal pressure, the dye-uptake can be above 85%, dye cannot leak easily, and the imidazole-based anionic dye dyeable modified copolyester masterbatch can be applied to the field of garment, home textile, agriculture, industry and the like.

Description

technical field [0001] The invention relates to a copolyester masterbatch and its preparation method and application field, in particular to an imidazole-based anionic dye-dyeable modified copolyester masterbatch and its preparation method and application. Background technique [0002] The textile industry is the traditional pillar industry of our country's national economy and an important livelihood industry. Among them, polyester fiber is the most widely used textile fiber with the largest output in the textile industry. Polyester fiber has a series of excellent properties, such as high elastic modulus and breaking strength, moderate resilience, excellent heat setting, good heat resistance and light resistance, so it is widely used in clothing, home textiles and industries. The excellent physical and mechanical properties of polyester fiber depend on regular molecular structure and high crystallinity, but it also makes it difficult to dye polyester fiber. Due to the lac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/685C08L77/06
CPCC08G63/6856C08L77/06C08L2205/025
Inventor 夏于旻罗斌倪建华王依民王燕萍
Owner DONGHUA UNIV
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