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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: 2021-03-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 A kind of preparation method of antistatic flame retardant polyester resin

[0033] This embodiment includes the following processes:

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

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

[0036] The heat-treated graphene oxide-supported titanium dioxide hybrid material and aluminum diethylphosphin...

Embodiment 2

[0038] Embodiment 2 A kind of preparation method of antistatic flame retardant polyester fiber

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

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

[0041] The antistatic and flame retardant polyester fiber prepared in this example has a limiting oxygen index of 34, a flame retardant grade of UL94 reaching V0, and a fiber resistivity of 4.6*10 after testing. 6 Ω∙cm. like figure 2 Shown in a, is the SEM photo of the charcoal residue after the burning of the polyester of the prior art in the embodiment of the present invention 2; figure 2 b is the SEM photo of the residual charcoal after the antistatic flame retardant fiber prepared in Example 2 of the present invention ...

Embodiment 3

[0042] Embodiment 3 A kind of 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] The product of the above reaction, after centrifugation, was washed with deionized water for 2 to 3 times, and placed in a muffle furnace with a nitrogen atmosphere at 800 ° C for 2 hours to obtain a graphene oxide-supported germanium oxide hybrid material, wherein the germanium oxide particle size About 50nm, 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 reacted at 290°C for 3.5h under vacuum conditions. An antistatic flame retardant polyeste...

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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 and flame retardant materials, and relates to the preparation of antistatic and flame retardant materials, in particular to a preparation method and application of an antistatic and flame retardant polyester resin. Background technique [0002] Polyester fiber (polyester) is an important variety of synthetic fibers. It is made of polyterephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (MEG) as raw materials through esterification or Polyethylene terephthalate (PET), a fiber-forming high polymer prepared by transesterification and polycondensation, is made into fibers by spinning and post-processing. [0003] Polyester fiber is currently the synthetic fiber with the highest output and largest consumption. Polyester has strong mechanical properties and good light resistance, heat resistance, and corrosion resistance. However, its electrical conductivity is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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