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Luminous meta-aramid fiber and preparation method thereof

A kind of aramid fiber and fiber technology, which is applied in the field of textile fibers to achieve the effect of high breaking strength and high elongation of meta-aramid fiber performance

Inactive Publication Date: 2019-02-15
YANTAI TAYHO ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After investigation and research, there is no preparation technology and products for luminous meta-aramid fibers in the relevant literature and the market at present. Therefore, the development of a low-cost, luminescent meta-aramid fiber is necessary for relevant workers who work at night. It is said to have a very important role. Even when there is no external light, this kind of meta-aramid protective product can also play the role of protection, warning and guidance in a dark environment. The fabric made of this luminous meta-aramid fiber Or ropes and other products can be widely used in textiles and clothing, aviation and navigation, fire emergency, transportation and other fields for night work

Method used

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  • Luminous meta-aramid fiber and preparation method thereof

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Effect test

Embodiment 1

[0022] A preparation method of luminous meta-aramid fibers, comprising the steps of:

[0023] Dissolve 460g of m-phenylenediamine in 4.0L of N,N-dimethylacetamide, and then add a total of about 850g of isophthaloyl chloride in batches for polymerization. After the polymerization is completed, add ammonia gas to neutralize the polymerization solution Dissolved hydrogen chloride was filtered to remove neutralized ammonium chloride to obtain a polymer solution with a polymer concentration of 21%.

[0024] Under stirring, add polyethylene glycol octylphenyl ether to N,N-dimethylacetamide, and then add night light agent SrMgSi 2 o 6 :Eu 2+ Grinding to a particle size of 2-5 microns and dispersing in it, the mass fraction of the luminescent agent in the prepared luminescent agent mixture is 12%, and the ratio of polyethylene glycol octylphenyl ether and N,N-dimethylacetamide used is The mass ratio is 0.009:1. Under stirring, add the luminescent agent mixture into the polymerizat...

Embodiment 2

[0027] A preparation method of luminous meta-aramid fibers, comprising the steps of:

[0028] Dissolve 460g of m-phenylenediamine in 3.74L of N,N-dimethylformamide, and then add a total of about 850g of isophthaloyl chloride in batches for polymerization. After the polymerization is completed, add calcium oxide to neutralize the polymerization solution Dissolved hydrogen chloride was removed by filtration to neutralize the generated calcium chloride to obtain a polymer solution with a polymer concentration of 22%.

[0029] Under stirring, polyvinylpyrrolidone was added to N,N-dimethylformamide, and then the luminous agent SrAl 2 o 4 : Dy 3+ Grinding to a particle size of 2-5 microns and dispersing in it, the mass fraction of the luminescent agent in the obtained luminescent agent mixture is 16%, and the mass ratio of polyvinylpyrrolidone to N,N-dimethylformamide used is 0.012: 1. Under stirring, add the luminescent agent mixture into the polymerization solution with a pape...

Embodiment 3

[0032] A preparation method of luminous meta-aramid fibers, comprising the steps of:

[0033] Dissolve 460g of m-phenylenediamine in 3.6L of N,N-dimethylacetamide, then add a total of about 850g of isophthaloyl chloride in batches for polymerization, after the polymerization is completed, add calcium oxide, calcium hydroxide or A neutralizing agent such as ammonia gas neutralizes the dissolved hydrogen chloride in the polymerization solution, and the salt generated by neutralization is removed by filtration to obtain a polymerization solution with a polymer concentration of 23%.

[0034] Under stirring, add polyethylene glycol octyl phenyl ether and polyvinyl pyrrolidone with a mass percentage of 1:1 to N,N-dimethylacetamide, and then add the luminous agent SrAl 2 o 4 : Eu 2+ Grinding to a particle size of 2-5 microns and dispersing in it, the mass fraction of the luminescent agent in the prepared luminescent agent mixture is 19%, and the ratio of polyethylene glycol octylph...

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Abstract

The invention discloses luminous meta-aramid fiber and a preparation method thereof. The luminous meta-aramid fiber can emit afterglow in a dark environment after leaving from a light environment. Thepreparation method comprises the following processes: preparing a luminous agent dispersion, preparing a polymerization solution, preparing a spinning solution, then treating in a coagulating bath, performing water washing, drying, performing heat treatment, crimping, cutting and the like. The afterglow of the luminous meta-aramid prepared by the preparation method can last for more than 10 hours; in addition, the luminous meta-aramid has the characteristics of flame retardance, high breaking strength, high elongation, low cost and the like and is of a very important significance in guaranteeing the life safety of a night worker in the special field.

Description

technical field [0001] The invention belongs to the technical field of textile fibers, and in particular relates to a luminous meta-aramid fiber and a preparation method thereof. Background technique [0002] Meta-aramid fiber is poly-m-phenylene isophthalamide. It has the characteristics of intrinsic flame retardancy, corrosion resistance, and high temperature resistance. It is widely used in high-temperature smoke and dust filtration, personal protection and other fields, so it is a very important special high-performance fibers. [0003] In the field of personal protection, meta-aramid fibers have obvious advantages over other fibers due to their intrinsic flame-retardant properties, so products made of pure meta-aramid fibers are widely used in rescue clothing, forest fire fighting clothing and other In the field of protection, it plays a very important role in protecting the life safety of workers in related fields. However, for some special occasions such as night wo...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/10C08G69/32
CPCC08G69/32D01F1/10D01F6/905
Inventor 马海兵杨文华
Owner YANTAI TAYHO ADVANCED MATERIALS CO LTD