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Fabric for preventing adhesion of aquatic organisms

A technology of aquatic organisms, copolymers

Pending Publication Date: 2016-02-17
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the attachment and growth of aquatic organisms can be prevented, a toxic antifouling agent is used, so it is not preferable from the perspective of environmental safety and sanitation during the manufacture and coating of paint, and the toxic antifouling agent is slowly released from the coating film in water. Dissolution is slow, and may pollute waters for a long time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Fabric for preventing adhesion of aquatic organisms
  • Fabric for preventing adhesion of aquatic organisms
  • Fabric for preventing adhesion of aquatic organisms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] A PTFE woven fabric was obtained using a thread (average diameter: 100 μm, fineness: 300D) of PTFE (SSG: 2.159, melting point: 344° C., specific gravity: 2.159).

[0147] The obtained PTFE woven cloth (test base) was fixed with a test frame made of vinyl chloride, and hung from a pier, and the aquatic organisms adhesion test was implemented for 3 months. The test base is usually placed in seawater, and after hanging down for 1 month and 2 months, it was lifted up for simple analysis, and 3 months later was regarded as the end of the test, and the final observation and the measurement of the amount of adhesion were carried out. The results are shown in Table 1.

Embodiment 2

[0155] A PTFE woven fabric was obtained using a thread (average diameter: 100 μm, fineness: 300D) of PTFE (SSG: 2.159, melting point: 344° C., specific gravity: 2.159). The obtained PTFE fabric was subjected to a tensile test and a water permeability measurement. The tensile test was performed in accordance with JISL1913. Regarding the water permeability, the effective cross-sectional area is 13.5cm 2 , Atmospheric pressure conditions measured pure water permeation. The results are shown in Table 2. Also, a photo of the appearance of the PTFE fabric is shown in figure 1 .

reference example 1

[0163] PTFE (SSG: 2.157, melting point: 345°C, specific gravity: 2.157) was extruded at 29.4 MPa, and fired in a firing furnace at 370°C for 3 hours to produce a sheet with a thickness of 2.0 mm. The obtained PTFE sheet was subjected to a barnacle adhesion test. The results are shown in Table 3.

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Abstract

The purpose of the present invention is to provide a fabric for preventing adhesion of aquatic organisms, which has exceptional strength and effectiveness in preventing adhesion of aquatic organisms, which readily sinks in water, and which is suitable for use in diverse forms and environments. This fabric for preventing adhesion of aquatic organisms comprises yarn that contains a fluororesin.

Description

technical field [0001] The present invention relates to fabrics for preventing the attachment of aquatic organisms. Background technique [0002] A large number of barnacles and sea squirts adhere to and grow on the surface of various underwater structures, such as sea water intake facilities in power stations, buildings such as ships, and fishery items such as fishing nets. Aquatic organisms (marine organisms) such as worms, mussels, mussels, bruxa totalis, Enteromorpha enteromorpha, Ulva, etc., may cause functional reduction or dysfunction. In the past, mechanical removal methods such as regularly scraping off the attached aquatic organisms were usually used. However, in recent years, various antifouling coatings have been developed, and the antifouling coatings are mainly applied to the surface of underwater structures to prevent aquatic organisms from biological attachment. [0003] Examples of the antifouling paint include toxic antifouling agents such as organotin co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K75/00A01K63/00A01M99/00D03D15/00D06M15/256D03D15/58
CPCA01K75/00D06M15/256D06M15/295D10B2321/042D03D15/283D10B2401/20D10B2507/02A01K61/60Y02A40/81
Inventor 吉田健河原一也辻雅之
Owner DAIKIN IND LTD