DETERMINATION OF MESH BREAKING STRENGTH OF POLYAMIDE FISHING NETS UNDER THE EXPOSURE OF BENZINE, DETERGENT, SALT AND LIGHT

Yıl 2018, Cilt: 13 Sayı: 4, 33 - 40, 01.11.2018

Servet Atayeter Hasan Hüseyin Atar

Öz

This study deals with the determination of breaking
strength of polyamide cage fishing nets under the exposure of salt, light and
varying environmental pollutants such as benzine and detergent. A series of
experiments under varying conditions was carried out in order to determine
breaking strength that is of a great importance in ensuring correct performance
of a particular gear. Breaking strength values of the 39/14 fishing net samples
which were held in benzine, detergent and dry salt at room temperature for 1 to
5 months are found to decrease with time. Loss of breaking strength values with
detergent, benzine and dry salt resulted respectively as 10.09%>6.475%>3.39%.
According to results, it can be generalized that detergent is the most abrasive
pollutant. In laboratories conducting tests on fishing nets using detergent,
benzine and salt the duration of the test should be lasted at least 5 months.
No remarkable change with a slight loss of strength value of 0.36% observed in
36/18 fishing net samples which were exposed artificial sun light for 300 hours
(Equals 2700 hours of sunlight exposure). It can be concluded that this result
proved the fact of PA nets are very durable against sun light. The results of
this study point out that the test conditions in laboratories duration and
chemicals have a great impact on the results of tests. Pollutants such as
detergent and benzine can noticeably decrease the strength of fishing nets and
affect the productivity and Effectiveness of Fishing Operations.

Anahtar Kelimeler

Fishing Net, Polyamide, Mesh Breaking Strength, Pollution, Detergent

Kaynakça

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