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Preparation method and application of antistatic flame-retardant polyester resin

A flame-retardant polyester and anti-static technology, which is applied in the manufacture of fire-retardant and flame-retardant filaments, conductive/antistatic filaments, and single-component polyester rayon. It can solve the problems of poor electrical conductivity and improve the The effect of antistatic and flame retardant ability, good fiber spinnability and excellent flame retardant performance

Active Publication Date: 2020-05-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyester has strong mechanical properties and good light resistance, heat resistance, and corrosion resistance. However, its electrical conductivity is poor and its limiting oxygen index is only about 22%. sex is very important

Method used

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  • Preparation method and application of antistatic flame-retardant polyester resin
  • Preparation method and application of antistatic flame-retardant polyester resin
  • Preparation method and application of antistatic flame-retardant polyester resin

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Example 1 A preparation method of antistatic flame-retardant polyester resin

[0033] This embodiment includes the following processes:

[0034] First, 1 kg of graphene oxide with a sheet size of 700 nm and a carboxyl content of 20% was dispersed in 100 kg of water, and then 1 kg of n-butyl titanate was added. After reacting at 40°C for 4 hours, the drop was dropped at a rate of 5 drops per second. Add ultrapure water for 2 minutes, heat up to 60℃ and react for 4 hours. The principle of the above reaction process is as follows figure 1 Shown

[0035] After centrifugal separation, the product of the above reaction was cleaned with deionized water for 2 to 3 times, and it was placed in a muffle furnace at 300°C in a nitrogen atmosphere for heat treatment for 8 hours to obtain a graphene oxide supported titanium dioxide hybrid material. The titanium dioxide particle size was about 50nm, the mass fraction is 20%;

[0036] The heat-treated graphene oxide supported titanium dioxide ...

Embodiment 2

[0038] Example 2 A preparation method of antistatic flame-retardant polyester fiber

[0039] This example is an application of the antistatic flame-retardant polyester resin obtained in Example 1. specifically:

[0040] In this example, the antistatic flame-retardant polyester resin particles prepared in Example 1 were melt-spun at 285° C. with a spinning speed of 4500 m / min to prepare an antistatic flame-retardant polyester fiber.

[0041] The antistatic flame-retardant polyester fiber prepared in this example has a limiting oxygen index of 34, a flame-retardant rating of UL94 up to V0, and a fiber resistivity of 4.6*10. 6 Ω∙cm. Such as figure 2 a shows the SEM photo of the carbon residue after burning of the polyester in the prior art in Example 2 of the present invention; figure 2 b is the SEM photo of the carbon residue after burning of the antistatic flame-retardant fiber prepared in Example 2 of the present invention. It can be seen from the figure that the structure of th...

Embodiment 3

[0042] Example 3 A preparation method of antistatic flame-retardant polyester resin

[0043] This embodiment includes the following processes:

[0044] First, disperse 2kg of graphene oxide with a sheet size of 800 nm and a carboxyl content of 15% in 100kg of water, then add 1kg of germanium chloride and react at 60°C for 6h;

[0045] After centrifugal separation, the product of the above reaction was cleaned with deionized water for 2 to 3 times, and then placed in a muffle furnace at 800°C in a nitrogen atmosphere for heat treatment for 2 hours to obtain a graphene oxide supported germanium oxide hybrid material. About 50nm, the mass fraction is 15%;

[0046] The heat-treated graphene oxide supported germanium oxide hybrid material and zinc diethylphosphinate were ultrasonically dispersed in ethylene glycol and reacted with PTA at 250°C and 400Kpa for 2h, and then at 290°C under vacuum for 3.5h. An antistatic flame-retardant polyester resin is obtained.

[0047] The mass fraction of...

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Abstract

The invention discloses a preparation method of antistatic flame-retardant polyester resin, comprising the following steps: chelating carboxylated graphene oxide and a metal oxide precursor with synergistic catalysis and flame retardancy, carrying out heat treatment, and carrying out in-situ polymerization on the obtained product and alkyl phosphinic metal salt to prepare the antistatic flame-retardant polyester resin. The invention also discloses application of the above electrostatic flame-retardant polyester resin. The electrostatic flame-retardant polyester resin is used for preparing antistatic flame-retardant polyester fibers. Carboxylated graphene is chelated with a metal oxide precursor with a catalytic effect, a product obtained after heat treatment is dispersed in a polyester polymerization system, graphene oxide is reduced in situ through heat and reducing atmosphere in the polymerization process, and the anti-static purpose is achieved. The invention belongs to the technical field of preparation of antistatic flame-retardant materials, the preparation method is used for preparing the antistatic flame-retardant polyester resin, and the obtained resin is further applied to preparation of corresponding fibers.

Description

Technical field [0001] The invention belongs to the technical field of preparation of antistatic flame retardant materials, relates to the preparation of antistatic flame retardant materials, and specifically relates to a preparation method and application of an antistatic flame retardant polyester resin. Background technique [0002] Polyester fiber (polyester) is an important type of synthetic fiber. It is made of polyterephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (MEG) as raw materials by esterification or Polyethylene terephthalate (PET), a fiber-forming polymer made by transesterification and polycondensation, is a fiber made by spinning and post-processing. [0003] Polyester fiber is currently the synthetic fiber with the highest output and the largest consumption. Polyester has strong mechanical properties and good light resistance, heat resistance, corrosion resistance, etc. However, its electrical conductivity is poor and its limiting oxygen ...

Claims

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Application Information

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IPC IPC(8): C08G63/183C08G63/78C08G63/85D01F6/92D01F1/07D01F1/09
CPCC08G63/183C08G63/78C08G63/85D01F1/07D01F1/09D01F6/92
Inventor 王倩倩朱美芳李登新周家良俞森龙相恒学
Owner DONGHUA UNIV
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