In this work, were investigated about the investigation of the frequency-dependent change in the character of the dielectric permeability and the tangent of dielectric loss angles of the biocomposites type LDPE + x vol.% FB obtained by fish bone fillers adding to the matrix of low density polyethylene and the bionanocomposites type LDPE + x vol.% FB + 1 vol.% Al with adding to this mixture 1 vol.% aluminum nanoparticles size 50 nm, calculation the actual and imaginary parts of the dielectric permeability of these materials, and the investigation of frequency change of electrical conductivity of both bio and bionanocomposites. It has been established that the dielectric permeability of biocomposites practically does not change in the frequency range 0–103 kHz.
In this paper, information is given about the investigation of the dielectric properties of bionanocomposites modified with fish bones (FBs) and scales and metal nanoparticles (Al, Fe) with 50–80 nm dimension before and after ultraviolet (UV) irradiation, depending on the temperature, the irradiation time and the volume content of fillers. The investigations of dielectric permittivity and dielectric loss were carried out in the temperature range 300–390 K, the time of irradiation with UV rays were 50, 100, 70 and 150 h, and the filler contents were 3, 5, 7, 10, 15 vol.% and nanoparticles 1 vol.% Al (Fe). It was found that the dielectric constant of UV-irradiated biocomposites with FB additives increases and the dielectric loss decreases. An increase in dielectric constant is also observed with an increase in the volume content of a biological origin filler. Note that the effect of UV irradiation causes the appearance of a new region of dielectric loss in the temperature-dependent tan[Formula: see text] of the polyethylene. However, in modified samples after irradiation, under the same conditions, the change in dielectric properties is much less pronounced than in the initial ones, i.e. the dielectric constant increases monotonically, and the value of tan[Formula: see text] in the maximum of the new loss region is much smaller. Moreover, the effect of the additive is manifested in slowing down the process of LDPE oxidation in the irradiation zone, since the main losses of the polyethylene are primarily caused by the relaxation of the carbonyl groups. Thus, the observed dependences of [Formula: see text] and tan[Formula: see text] on the time of exposure to UV rays are explained by a change in the physical structure of the polymer matrix and the boundary layer of the components composition under the action of charges formed during irradiation.
The paper presents the results of a study of the effect of fish bone additives on the development of dendrites in low-density polyethylene during its breakdown. It was found that with the introduction of additives from fish bone in an optimal amount it promotes an increase in the induction period of the appearance of dendrites in lowdensity polyethylene, due to a slowdown in the process of the appearance of local heating near the tip in a strong electric field and the appearance of an initial defect due to thermal decomposition of the polymer.
In research work have been extensively studied morphological aspects of seedlings on a scientific basis, propogation by seeds and cutting methods on the Absheron Peninsula species of Jacaranda mimosifolia belonging to the genus of Jacaranda Juss. of the family Bignoniaceae. The research analyzed the sowing period of seeds, soil characteristics, sowing depth, initial germination period, morphological features, agrotechnics, disease and pest control measures. Studies have shown that Jacaranda mimosifolia has the ability to adapt to open and greenhouse conditions in Absheron — In the autumn began to appear the first seedlings in the first decade of October from the seeds sown in the second decade of September in a greenhouse condition, were obtained 4.6% of seedlings at the end of the growing season. In the spring began to appear the first seedlings in the third decade of April from the seeds sown in the first decade of April, were obtained 5.2% of seedlings at the end of the growing season. In the second decade of May, 20–30 cm tall plants were transplanted to open fields. At the end of the growing season the length of the compound leaves of annual plants reached 14×15 cm. Plant height reached 1.2 m in height, 1.2–1.5 mm in diameter, stalks reached 16 cm in length, 0.2 cm in width. There are 20 leaf-stalks on 1 leaf. Keeping the temperature in the greenhouse at 22–24 °C from April to the second decade of October had a positive effect on plant productivity. As a result of the research, it was found that in Absheron conditions the plant shed their leaves in the greenhouse at a temperature below 14 °C. As a result of the research, it was found that Jacaranda mimosifolia has the ability to adapt to open and greenhouse conditions in Absheron, it is profitable to use such an ornamental plant in the construction of parks and gardens, in decoration of offices and interiors.
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