Preparation method of cylindrical box body with antifouling property for deep and open sea net cage

Abstract

The invention provides a preparation method of a cylindrical box body with the antifouling property for a deep and open sea net cage. The method comprises the following steps of A, preparing an antifouling netting, which comprises three aspects of preparing a modified high-density polyethylene composite material, preparing an antifouling monofilament bundle and processing the antifouling netting;B, preparing an anti-abrasion netting from a polyamide netting coated with a polyurea coating; and C, preparing the cylindrical box body, which comprises three aspects of side net processing, bottom net processing and cylindrical box body processing. According to the cylindrical box body with the antifouling property for the deep and open sea net cage obtained by the preparation method, the antifouling property of the cylindrical box body can be greatly improved and the water resistance of the cylindrical box body and the attachment area of fouling organisms can be reduced on the premise of keeping the netting strength of a side net unchanged, fouling organism attachment of the cylindrical box body and net breaking fish escape accidents under severe sea conditions can be greatly reduced, and green development and modern construction of the deep and open sea net cage culture industry are realized.

Description

technical field [0001] The invention belongs to the technical field of deep sea net cages, and in particular relates to a preparation method of a cylindrical box body for deep sea net cages with antifouling performance. Background technique [0002] China is currently the world's largest aquaculture country, but the future growth space of aquaculture industry is worrying. In order to meet the above challenges, people are focusing on deep-sea cage culture. Deep-sea net cages refer to those placed in open waters with a depth of more than 15m at low tide and large currents, or in waters off islands and reefs three nautical miles offshore, or in aquaculture waters not less than 1000m 3 seawater cages. In recent years, a number of units have built various forms of deep-sea cages to realize the green development of deep-sea cages. [0003] "Case body", "side net", "bottom net", "edge net", "net net" and "net clothing" are all nouns in the technical field of deep sea net cages. ...

AI Technical Summary

Problems solved by technology

The practice of deep-sea net cage culture industry shows that anti-fouling and high-cost anti-fouling technology is not suitable for this technical field. Traditional materials and assembly technologies in the existing technical field cannot produce cylindrical boxes with anti-fouling performance at all. Therefore, a A kind of cylindrical casing with anti-fouling performance for deep-sea net cages has become a long-standing unresolved technical problem in this technical field