Deep-sea fouling organism prevention biodegradable breeding net and preparation technology thereof

Abstract

The invention relates to a deep-sea fouling organism prevention biodegradable breeding net, prepared from the following components in parts by weight: 80-91 parts of starch biodegradable plastics, 0.1-3 parts of isothiazolinones compounds, 0.1-2 parts of di-iso-decylphthalate, 0.1-2.5 parts of natural capsaicin, 0.5-3.5 parts of copper powder, 0.5-3.5 parts of tin powder, 0.5-6 parts of a compatilizer, 0.5-2 parts of a dispersing agent, 0.5-1 part of an organic solvent, 0.1-1 part of amylase and 0.5-3.5 parts of an elastomer, wherein the isothiazolinones compounds, the capsaicin, the amylase, the copper powder and the tin powder are highly dispersed by the dispersing agent, and plankton can be repelled by the copper powder and the tin powder, so that the first layer of fouling prevention is realized; the fouling organism can be inhibited or killed with poison by the natural capsaicin and the amylase which are distributed in the gaps of the copper powder and the tin powder through an antagonistic mechanism, so that the second layer of fouling prevention is realized; the fouling organism can be killed by the isothiazolinones compounds, so that the three layer of fouling prevention is realized. The deep-sea fouling organism prevention biodegradable breeding net is remarkable in three-layer antifouling effect, and all the components of the breeding net are free from pollution to environment, so that a better environmental protection effect is achieved; the preparation technology is simple and efficient, and the cost is greatly lowered.

Description

technical field [0001] The invention relates to the technical field of breeding nets, in particular to a deep-sea fouling-proof biodegradable farming net and a preparation process thereof. Background technique [0002] Our country has a coastline of 18,000 kilometers, millions of square kilometers of ocean land, and rich marine resources. Due to long-term unrestrained and unscientific fishing, the offshore waters have no fish to fish, presenting a depressed scene, resulting in a serious waste of resources. Fishermen Encouraged by national policies, we use polyethylene material woven nets to make cages for aquaculture. Although it has also produced certain economic benefits, it is not sustainable. The main reason is that there are many marine fouling organisms, such as various algae and barnacles. , shellfish, tube worms, water toads, sponges, various bacteria and fungi, etc. Once these fouling organisms encounter physical objects in the ocean, they will attach and multiply r...

AI Technical Summary

Problems solved by technology

[0002] Our country has a coastline of 18,000 kilometers, millions of square kilometers of ocean land, and rich marine resources. Due to long-term unrestrained and unscientific fishing, the offshore waters have no fish to fish, presenting a depressed scene, resulting in a serious waste of resources. Fishermen Encouraged by national policies, we use polyethylene material woven nets to make cages for aquaculture. Although it has also produced certain economic benefits, it is not sustainable. The main reason is that there are many marine fouling organisms, such as various algae and barnacles. , shellfish, tube worms, water toads, sponges, various bacteria and fungi, etc. Once these fouling organisms encounter physical objects in the ocean, they will attach and multiply rapidly, seriously affecting the safety of the cages, for example, A circular net cage with a diameter of 5M only needs to use about 400KG polyethylene net, but during the growth period of fish from March to July every year, this net can be covered with all kinds of dirt in the sea for 20-30 days. The damage to organisms can reach 2000-3000KG, and the mesh surface forms a wall. In case of typhoon or undercurrent formed by high tide, this wall will be easily destroyed, and all the fish raised will run away, causing huge economic losses.

And these broken PE nets sink to the bottom of the sea and do not degrade for decades or even hundreds of years, which also poses hidden dangers to ships. It is extremely difficult to pull these several-ton nets ashore.

Moreover, the waste polyethylene nets and fouling organisms after landing have a foul smell, are difficult to degrade, and pollute the environment

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