Preparation method of non-smooth surface anti-drag liquid material

A non-smooth surface, liquid material technology, applied in biocide-containing paints, anti-fouling/underwater coatings, coatings, etc., can solve the problems of low drag reduction performance of materials, inability to fully present molds, and difficulty in demoulding , to achieve the effect of reducing mechanical operating costs, reducing energy consumption, and reducing resistance

Inactive Publication Date: 2016-08-17
郭迎庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to solve the problem that the existing bionic drag-reducing materials appear in the preparation process, the mold cannot fully present the surface structure characteristics of animals and plants, the demoulding is difficult during the preparation process, and the drag-reducing performance of the obtained material is not high. A method for preparing a drag-reducing liquid material with a non-smooth surface is provided. The invention first utilizes the mucus produced by fermenting the epidermis of earthworms, and then uses micron silicon dioxide to load nanoscale active ingredients in the mucus to form micro-nano structure crystals, and then Mix with low surface energy fluorocarbon resin, add white carbon black as pigment, dissolve in xylene, butyl acetate and methyl isobutyl ketone solution, load with fermented and modified earthworm skin, and get a non-smooth surface after concentration Drag-reducing liquid material, the obtained material is coated on the surface of the hull, and after natural drying, a complex bionic structure can be produced. The active ingredients of the earthworm extract contained on the surface can greatly reduce the frictional resistance of the hull in seawater, and has excellent drag-reducing performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Dissect 10 artificially cultured earthworms with a length of 15 cm, remove the earthworm epidermis, wash 3 times with clean water after manual removal of impurities, transfer the earthworm epidermis to a tissue grinder, crush it into 0.2×0.2 cm epidermis fragments, and collect the obtained epidermis Fragments, put it in a fermenter filled with 30mL deionized water, seal and ferment for 6 days, filter, collect the filtrate, and set aside, collect the filter residue and soak it in formalin for 6h, set aside; weigh 10g of micron silica powder, Add it to the filtrate obtained above, set the stirring speed to 300r / min, stir and react for 2 hours, evaporate and crystallize the obtained mixed solution, and grind the obtained crystal with a mortar to obtain a composite powder; mix xylene and acetic acid at a volume ratio of 6:3:1 Butyl ester and methyl isobutyl ketone solution, then successively weigh 5g of white carbon black, 5g of fluorocarbon resin and 3g of the above-mention...

example 2

[0020] Dissect 15 artificially cultured earthworms with a length of 16 cm, remove the earthworm epidermis, wash 4 times with clean water after manual removal of impurities, transfer the earthworm epidermis to a tissue grinder, crush it into epidermal fragments of 0.3 × 0.3 cm, and collect the obtained epidermis Fragments, put it in a fermenter filled with 40mL deionized water, seal and ferment for 7 days, filter, collect the filtrate, and set aside, collect the filter residue and soak it in formalin for 7h, set aside; weigh 15g of micron silica powder, Add it to the filtrate obtained above, set the stirring speed to 400r / min, stir and react for 3h, evaporate and crystallize the obtained mixed solution, and grind the obtained crystal with a mortar to obtain a composite powder; mix xylene and acetic acid at a volume ratio of 6:3:1 Butyl ester and methyl isobutyl ketone solution, then successively weigh 7g of white carbon black, 6g of fluorocarbon resin and 4g of the above-mention...

example 3

[0023] Dissect 20 artificially cultured earthworms with a length of 18 cm, remove the earthworm epidermis, wash 5 times with clean water after manual removal of impurities, transfer the earthworm epidermis to a tissue grinder, crush it into epidermal fragments of 0.4 × 0.4 cm, and collect the obtained epidermis Fragments, put it in a fermenter filled with 50mL deionized water, seal and ferment for 8 days, filter, collect the filtrate, and set aside, collect the filter residue and soak it in formalin for 8h, set aside; weigh 20g of micron silica powder, Add it to the filtrate obtained above, set the stirring speed to 500r / min, stir and react for 4h, evaporate and crystallize the obtained mixed solution, and grind the obtained crystal with a mortar to obtain a composite powder; mix xylene and acetic acid at a volume ratio of 6:3:1 Butyl ester and methyl isobutyl ketone solution, then weigh 8g of white carbon black, 8g of fluorocarbon resin and 5g of the above-mentioned composite ...

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PUM

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Abstract

The invention discloses a method for preparing a drag-reducing liquid material with a non-smooth surface, and belongs to the field of synthesis of drag-reducing materials. The present invention first utilizes the mucus produced by the fermentation of the earthworm epidermis, and then uses micron silicon dioxide to load the nano-scale active ingredients in the mucus to form a micro-nano structure crystal, then mixes it with a fluorocarbon resin with low surface energy, and adds white carbon black as Pigment, dissolved in xylene, butyl acetate and methyl isobutyl ketone solution, loaded with fermented and modified earthworm skin, after concentration, a non-smooth surface drag-reducing liquid material is obtained, and the obtained material is coated on the surface of the hull and dried naturally Finally, a complex bionic structure can be produced. The active ingredients of the earthworm extract contained on the surface can greatly reduce the frictional resistance of the hull in seawater, and has excellent drag reduction performance.

Description

technical field [0001] The invention discloses a method for preparing a drag-reducing liquid material with a non-smooth surface, and belongs to the field of synthesis of drag-reducing materials. Background technique [0002] During the movement of the ship, the resistance caused by surface friction is about 70-80% of the total resistance. When modern civil aircraft is flying, the surface friction resistance accounts for almost half of the total resistance. In pipeline transportation, more than 80% of the total resistance is Energy consumption is in the surface frictional resistance, therefore, it is very necessary to reduce the surface frictional resistance of moving objects, and designing and preparing functional surface materials with reduced frictional resistance is undoubtedly one of the important ways to achieve this goal. [0003] The lotus leaves in the plants have the characteristic of leaving the silt without being stained. The whales among the animals are huge, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D7/12C09D5/16
CPCC09D127/12C08K3/36C08K5/00C08K2201/014C09D5/1625C09D5/1662C09D7/61C09D7/63
Inventor 郭迎庆许博伟
Owner 郭迎庆
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