Ternary copolymerized composite material of functional graphene in-situ polymerized polyester and preparation method and special device thereof

A technology of functional graphene and composite materials, applied in the field of ternary copolymer composite materials and their preparation, can solve problems such as unfavorable resource saving, large-scale production, insignificant performance improvement, and large graphene content, and achieve good mechanical properties and comprehensive Performance, good dispersion peeling and shearing, small investment effect

Active Publication Date: 2019-02-15
CHANGZHOU HIGHBERY NEW NANO MATERIALS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the content of graphene added in this patent is relatively large, which is not conducive to resource conservation and industrial mass production
[0006] In terms of the performance of graphene-enhanced modified polyester, although there are relevant literature reports at home and abroad, they are all realized by blending and adding, which has problems such as large amount of addition, difficult processing, and insignificant performance improvement.

Method used

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  • Ternary copolymerized composite material of functional graphene in-situ polymerized polyester and preparation method and special device thereof
  • Ternary copolymerized composite material of functional graphene in-situ polymerized polyester and preparation method and special device thereof
  • Ternary copolymerized composite material of functional graphene in-situ polymerized polyester and preparation method and special device thereof

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Experimental program
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Embodiment 1

[0041] A special device for preparing functional graphene in-situ polymerized polyester ternary copolymerization composite materials of this embodiment, such as figure 2 As shown, it includes a raw material addition device, a raw material preparation device 4, an esterification reaction device 5, a prepolymer filtration device 6, a polycondensation reaction device 7 and a melt filtration device 8 connected in sequence by pipelines, and the raw material addition device includes a graphene addition device 1 and auxiliary material adding device 2, graphene adding device 1, auxiliary material adding device 2 and raw material preparation device 4 are all provided with high-shear emulsifier and ultrasonic disperser, between graphene adding device 1 and raw material preparation device 4 is provided with High pressure homogenizer. The waste ports of the esterification reaction device 5 and the polycondensation reaction device 7 are connected to the raw material preparation device 4 ...

Embodiment 2

[0068] The preparation device of the ternary copolymerization composite material of the functional graphene in-situ polymerized polyester of the present embodiment is the same as that of Example 1, and the preparation method is as follows:

[0069]Amino functional graphene and auxiliary materials (comprising titanium dioxide, catalyst) are dispersed in ethylene glycol to obtain functional graphene dispersion liquid and auxiliary material dispersion liquid respectively; then remaining ethylene glycol and purified terephthalic acid, functional graphene dispersion liquid , the auxiliary material dispersion liquid is added to the reaction kettle for dispersion, and then the esterification and polycondensation reactions are carried out in sequence to obtain the ternary copolymerization composite material. Among them, the mass of functional graphene accounts for 0.5% of the terpolymer composite material.

[0070] Such as figure 1 As shown, it specifically includes the following ste...

Embodiment 3

[0081] The preparation device of the ternary copolymerization composite material of the functional graphene in-situ polymerized polyester of the present embodiment is the same as that of Example 1, and the preparation method is as follows:

[0082] Carboxyl functional graphene and auxiliary materials (including catalyst) are dispersed in ethylene glycol to obtain functional graphene dispersion liquid and auxiliary material dispersion liquid respectively; then remaining ethylene glycol and purified terephthalic acid, functional graphene dispersion liquid, auxiliary material The dispersion liquid is added into the reaction kettle for dispersion, and then the esterification and polycondensation reactions are carried out in sequence to obtain the ternary copolymerization composite material. Among them, the mass of functional graphene accounts for 2% of the terpolymer composite material.

[0083] Such as figure 1 As shown, it specifically includes the following steps:

[0084] (1...

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Abstract

The invention discloses a ternary copolymerized composite material of functional graphene in-situ polymerized polyester and a preparation method and a special device thereof and belongs to the technical field of preparation of composite materials. The composite material is prepared from dihydric alcohol, binary acid and functional graphene through esterification and polycondensation reactions, wherein the molar ratio of dihydric alcohol and binary acid is (1.2-2): 1, the functional graphene accounts for 0.01-2% by mass of the ternary copolymerized composite material and the number-average molecular weight of the ternary copolymerized composite material is 10000-150000. By introducing active functional groups to the surface of graphene, graphene is grafted to a polyester chain segment, so that stable covalent bonds are formed between the graphene and the polyester. The polyester molecular chain is enhanced as the graphene material has good physical and mechanical properties, so that thecomposite material shows good mechanical properties and comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of preparation of composite materials, and more specifically relates to a ternary copolymerization composite material of functional graphene in-situ polymerized polyester, a preparation method and a special device thereof. Background technique [0002] Polyethylene terephthalate (PET) is one of the most important synthetic materials at present, and can be used in fields such as fibers, films, and plastics. PET film is widely used in packaging, industry, electrical, electronic, magnetic, photosensitive and other fields due to its high mechanical strength, good cold and heat resistance, stable shrinkage and excellent electrical insulation and optical properties. Polyester is a fiber prepared from polyethylene terephthalate (PET) through spinning and post-processing. Polyester fiber is the most widely used synthetic fiber with the largest output in the world, accounting for about 70% of the world's synthetic f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00
CPCC08G83/001
Inventor 蒋炎罗振扬马宏明梁燕黄荣庆曹建鹏周良艳万元俊宋彦杰禹龙刘雪静
Owner CHANGZHOU HIGHBERY NEW NANO MATERIALS TECH CO LTD
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