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Room-temperature vulcanized silicone rubber graphene bionic antifouling composite material with bubble adsorption function

A room temperature vulcanization, composite material technology, applied in the field of chemical biology, can solve the problems of marine biological pollution, poor durability of hydrophilic polymers, etc., and achieve the effects of enhanced antifouling performance, low surface energy, and easy access

Pending Publication Date: 2022-07-29
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a surface material with a biomimetic microstructure can not only solve the problem of marine biological pollution, but also solve the problem of poor durability of hydrophilic polymers.

Method used

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  • Room-temperature vulcanized silicone rubber graphene bionic antifouling composite material with bubble adsorption function
  • Room-temperature vulcanized silicone rubber graphene bionic antifouling composite material with bubble adsorption function
  • Room-temperature vulcanized silicone rubber graphene bionic antifouling composite material with bubble adsorption function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 (production of template)

[0036] 1) Taking Sophora japonica and succulent soft coral as biological models, the template diagrams of four antennae arrays were drawn by CAD.

[0037] 2) Using 3D printing technology to print out the template (such as figure 1 ).

[0038] 3) Customize the acrylic groove according to the size of the template (such as figure 2 ) and a cover plate, so that the template can be placed in the tank and used in the subsequent preparation of antifouling materials.

Embodiment 2

[0039] Example 2 (SR)

[0040] Weigh 22.97g of room temperature vulcanized silicone rubber and 0.30g of curing agent, stir evenly with a mechanical stirrer at 2000 rpm, and place it in a vacuum box to eliminate air bubbles. After the mixture is free of air bubbles, take it out and pour it into an acrylic tank equipped with a template. After standing for a while, cover it with an acrylic cover, press a heavy object to solidify it for 24 hours, and take it out to obtain the following result: image 3 Antifouling material shown in SR.

Embodiment 3

[0041] Example 3 (SR-GN1 to SR-GN4)

[0042] Weigh 22.86g of room temperature vulcanized silicone rubber, 0.0823g of graphene powder and 0.30g of curing agent, stir evenly with a mechanical stirrer at 2000 rpm, and place them in a vacuum box to eliminate air bubbles. After the mixture is free of air bubbles, take it out and pour it into the acrylic tank equipped with the template. After standing for a while, cover it with an acrylic cover, press a heavy object to cure it for 24 hours and take it out. prepared in turn as image 3 The four antifouling materials shown in SR-GN1 to SR-GN4.

[0043] SR-GN1 is a staggered and densely arranged antenna-like structure, with an antenna-like spacing of 3 mm; SR-GN2 is a staggered and sparsely arranged antenna-like structure with a 4 mm-like antenna-like spacing; SR-GN3 is a parallel and sparsely arranged antenna-like structure, Antenna-like spacing is 4mm; SR-GN4 is a parallel and densely arranged antenna-like structure, and the antenn...

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Abstract

The invention discloses a room temperature vulcanized silicone rubber graphene antifouling composite material with a bubble adsorption function, which adopts silicone rubber as a main material, has the characteristics of low surface energy, low elastic modulus and hydrophobicity, and can have certain antifouling characteristic. The anti-fouling material with the function of adsorbing bubbles underwater is prepared by taking the structures and characteristics of natural organisms of salvinia natans and sarcocephalum as inspiration, and the anti-fouling effect can be effectively enhanced by taking the bubbles as a barrier between the material and bacteria, so that the formation of a surface biological membrane is prevented, and the anti-fouling effect is improved. Therefore, the possibility of further biological pollution is reduced to a great extent. Graphene is doped on the basis of a silicone rubber raw material, so that the electronegativity is increased, and the adhesion of bacteria is further reduced. The anti-fouling agent has no toxic or side effect on other marine organisms through a physical anti-fouling mode; the room-temperature vulcanized silicone rubber material is low in cost, easy to obtain and high in durability; and a new method is developed for the field of marine antifouling.

Description

technical field [0001] The present invention belongs to the technical field of chemical biology. Background technique [0002] Globally, biological pollution is regarded as one of the main culprits of marine pollution. Biofouling refers to the phenomenon that microorganisms or large organisms grow in large numbers on the surfaces of natural structures and synthetic structures. This type of pollution can cause severe corrosion of many structures that have been submerged underwater for a long time, such as offshore structures, oil platforms, pipes and tanks in water purification plants, and marine transportation. During transportation, the hull is adhered by a large number of microorganisms and forms a biofilm that is difficult to remove, which increases the roughness of the hull surface and causes an increase in resistance, which finally leads to a decrease in the sailing speed. In other words, this means that the consumption of fuel will also increase, which means that the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/56B29C43/58C08K3/04
CPCB29C43/56B29C43/58C08K3/042C08L83/04
Inventor 邴薇王赫田丽梅靳会超
Owner CHANGCHUN UNIV OF TECH
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