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Polymethyl methacrylate-trimethylvinylbenzyl ammonium chloride-graphene oxide composite material and preparation method thereof

A technology of trimethylvinylbenzyl ammonium chloride and polymethyl methacrylate, which is applied in the field of composite materials, can solve the problems of increasing economic costs, complicated preparation process, and affecting the performance of PMMA-based nanocomposites, and achieves improvement The effect of improving interfacial bonding force, mechanical properties and thermal properties

Active Publication Date: 2021-07-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the easy agglomeration of nanofillers, they usually need to be organically modified before they can be used, which makes the preparation process of PMMA-based nanocomposites more complex and lengthy. At the same time, the addition of modifiers may also affect PMMA-based nanocomposites. Properties of Nanocomposites
These side effects will increase the economic cost to a large extent for industrial production

Method used

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  • Polymethyl methacrylate-trimethylvinylbenzyl ammonium chloride-graphene oxide composite material and preparation method thereof
  • Polymethyl methacrylate-trimethylvinylbenzyl ammonium chloride-graphene oxide composite material and preparation method thereof
  • Polymethyl methacrylate-trimethylvinylbenzyl ammonium chloride-graphene oxide composite material and preparation method thereof

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Embodiment 1

[0038] (1) Mix 3.0g MBC and 27.0g MMA monomers and add them into a three-necked flask (the total amount of monomers is 30g), and at the same time add 0.9g hydroxyethyl cellulose (HEC) and 0.036g dodecane to 150mL deionized water Sodium alkylbenzene sulfonate (SDBS) and 0.03g GO were added, the mixture was ultrasonically dispersed and then added to a three-neck flask, and stirred at a low speed of 400r / min. Access to N 2 After protecting for 40 minutes, raise the temperature to 75°C and keep an inert atmosphere, add 0.3g initiator BPO to initiate polymerization, and adjust the speed to 700r / min; stop heating after 6 hours of reaction, and continue stirring; after 30 minutes, reduce the speed to 400r / min ; The reaction ended after 15 minutes. The reaction system was cooled and filtered, the filtered product was repeatedly washed with deionized water, and vacuum-dried at 60°C to a constant weight to obtain a P(MMA-co-MBC) / GO nanocomposite, which was designated as P(M-A) / GO;

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Abstract

The invention discloses a polymethyl methacrylate-trimethylvinylbenzylammonium chloride-graphene oxide composite material. The charge environment of the methyl methacrylate polymer matrix is ​​regulated, and a conjugated benzene ring is introduced into the polymer matrix. The two monomers are copolymerized by suspension polymerization. The copolymer product is extracted and then hot-pressed. The invention uses methyl methacrylate as the base material, adopts the method of in-situ suspension copolymerization to prepare the nano-composite material, realizes the regulation of the charge environment of the base body, introduces conjugated benzene rings into the polymer base body at the same time, and adds graphene oxide fillers Compared with pure PMMA resin, the mechanical properties and thermal properties are greatly improved. This method successfully improves the dispersion of graphene oxide in the matrix and solves the problems existing in the mechanical properties and thermal properties of PMMA materials.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a polymethyl methacrylate (PMMA)-trimethylvinylbenzyl ammonium chloride-graphene oxide composite material and a preparation method thereof. Using PMMA as the matrix, adjusting the charge environment of the matrix and introducing conjugated benzene rings, filling graphene oxide (GO) to prepare PMMA-based nanocomposites Background technique [0002] As an excellent organic synthetic transparent material, PMMA has replaced ordinary glass because of its excellent light transmission performance and light weight. It is widely used in various lamps, optical glass, commercial advertising windows and aircraft side windows. In addition, PMMA also occupies a place in the fields of medicine, communication, electronic appliances, etc., especially in the field of medical products. Due to the good biocompatibility of PMMA, it has become a hot material in this field. Today, PMMA acco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F212/14C08F2/44C08K3/04C08F2/18
CPCC08F2/18C08F2/44C08F220/14C08K3/042C08F212/14
Inventor 郑俊萍赵丹马霖
Owner TIANJIN UNIV