Application of titanium wire in marine fixed fishing net

- Jul 03, 2018-

Application of titanium wire in marine fixed fishing net

In the fixed fishing nets used in marine aquaculture, diatoms will multiply after exposure to organic matter and bacteria, while marine organisms such as shellfish and barnacles that feed on diatoms will accumulate and attach, which will not only cause the increase of flow resistance and cause fishing nets. The fouling, and it will cause problems such as poor development of fish caused by poor oxygen infection. For this reason, smuggling agents, bactericides, etc. are generally used, but in this case, the service life of the fixed net is not more than 20 years, and in order to remove the attached microorganisms, the net must be pulled ashore for mechanical removal, resulting in an increase in labor costs and Problems such as deterioration of fishing nets.

The researchers studied the weaving of titanium wire into the existing polyethylene (PE) fishing net, energized, and electrolyzed the seawater near the titanium wire to produce chlorine gas and C10_, thereby killing and inhibiting the growth of bacteria. First, a mesh made of a platinum-plated titanium wire having a diameter of 1 mm was used as an anode, and a 312L plate of a non-pound steel was used as a cathode to conduct an electrolysis-electrolysis test.

      The results show that the pass-through voltage is 3.0V, and the weight of the titanium mesh does not change after being placed in seawater for 14 days, while the unpowered titanium mesh is attached to marine organisms. Then, the network research was carried out, mainly to study the matching of the strength and elongation of the titanium wire and the PE wire.

      The existing fishing net is made by smashing 10 PE filaments with a diameter of 0.10 mm into a composite yarn, and then smashing the two composite yarns into a composite yarn. The titanium mesh studied is that 10 PE monofilaments and one titanium filament are twisted into a composite yarn, and then two composite filaments are combined into a twisted yarn for braiding. The results show that the elongation of the titanium wire is smaller than that of the PE wire, especially the titanium wire of 10 mm. The titanium wire in the titanium wire is simultaneously broken with the surrounding PE, and the titanium wire in the titanium wire is also broken at the same time as the surrounding PE. It is indicated that the fishing net of the human titanium wire has the same strength as the existing polyethylene wire woven fishing net.

      The researchers estimated that the amount of titanium wire used in the Japanese market is estimated to be 350 tuna culture nets. Therefore, the length of the titanium wire is about 283 km. This is the current scale, and the breeding industry will continue to develop in the future. The length of the titanium wire is required to be 80.43m, while in Japan, plus the market outside Japan, the market is very huge.