Graphene oxide-based redox system initiator and preparation and use method thereof

Abstract

The invention belongs to the technical field of graphene materials, and discloses a graphene-oxide-based redox system initiator and a preparation and use method thereof. The initiator is composed of the following components by mass: 50-60 parts of oxidant, 40-50 parts of main reducing agent, 0-10 parts of assistant reducing agent and 50-100 parts of water. The oxidant is mainly one or more of an organic peroxy oxidant, an inorganic peroxy oxidant and a tetravalent cerium salt. The initiator greatly reduces the polymerization temperature, and the polymerization temperature can be in the range of 0-60 DEG C. The introduction of the graphene oxide can utilize the reducibility of a large number of organic functional groups on the surface of the graphene oxide and fully utilize structural characteristics of the graphene oxide to introduce high strength, high elasticity modulus, high toughness and other characteristics into a product.

Description

technical field [0001] The invention belongs to the technical field of graphene materials, and in particular relates to a redox system initiator based on graphene oxide and its preparation and use methods. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: Graphene oxide is mainly used in polymer composite materials, energy-related materials, sensors, paper-like materials, field-effect transistors and biomedicine due to its excellent electrical, electronic and thermal properties. applications and other fields. One of the widely used ways of graphene oxide is to directly compound graphene oxide with polymers to prepare composite materials. The prepared composite materials can significantly improve their mechanical properties, but during the preparation process, graphene oxide is in the polymer matrix. Dispersion is the biggest obstacle. At present, the use of graphene oxide as a reducing agent to participate in ...

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Problems solved by technology

[0005] (1) The prior art is not based on graphene oxide and its derivatives as a reducing agent, and forms a redox-type initiator system together with an oxidizing agent;

[0006] (2) The prior art cannot effectively reduce the polymerization reaction temperature, and the polymerization reaction temperature initiated cannot be controlled within 0 to 60 degrees Celsius;

[0007] (3) The graphene oxide used in the prior art has weak initiation performance, and the product conversion rate is low;

[0008] (4) The existing technology does not combine the reductive characteristics of a large number of hydroxyl groups on the surface of graphene oxide, and does not incorporate graphene oxide's own high strength, high elastic modulus, high toughness and other characteristics into products

Make prior art products perform poorly

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