Determination of the Optimal Speed of Pultrusion for Large-Sized Composite Rods

Krasnovskii, A. N.; Kazakov, I. A.

doi:10.4236/jeas.2012.23004

Cited by 13 publications

(9 citation statements)

References 4 publications

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“…The products are pulled from the dice rather than forced out by the pressure. A large number of profiles such as rod, tube, different types of structure can be produced by the pultrusion process [49,50,84].…”

Section: Compression Moldingmentioning

confidence: 99%

Mechanical Properties of Gamma-Irradiated Natural Fiber Reinforced Composites

Kabir

Hossain

Mia

et al. 2018

NHC

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Today we are facing a great problem due to the synthetic compounds, as most of them are not environmentally friendly. Natural fibers are the fibers which are obtained from the nature and these fibers are environment friendly. So the use of natural fiber is increasing day by day in different sectors. But natural fiber has some limitations for widely use, one of them is the hydrophilic nature. So it cannot be widely used. That is why we need to incorporate them with low mechanical property synthetic compounds, widely known as composite materials. When we are using natural fiber with polymeric materials by forming composites, the fiber properties greatly influence the strength or mechanical properties. So researchers are trying to reduce this weakness of the natural fiber reinforced composite materials. One of the widely used methods for the improvement of tensile properties is the application of radiation (gamma and UV). The control use of gamma and UV-radiation increases the tensile properties in some extent for the use of materials in practical applications. The reason of this increment in tensile properties is the high energy radiation making crosslink among the molecules. In all the respect of fiber reinforced composite highest tensile properties are observed at a certain dose of gamma and UV-radiation.

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Section: Compression Moldingmentioning

confidence: 99%

Mechanical Properties of Gamma-Irradiated Natural Fiber Reinforced Composites

Kabir

Hossain

Mia

et al. 2018

NHC

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“…, the value of tensile strength is optimal at the speed of 0.3 m/min. The decrease in tensile strength was reported by Krasnovskii and Kazakov that at high pulling speed of the pultruded composites, the strain occurred at the polymerized part of the pultruded composites may exceed the maximum allowable value. The phenomenon leads to poor matrix crosslinking and inadequate adhesion between fiber and matrix.…”

Section: Resultsmentioning

confidence: 87%

“…Krasnovskii and Kazakov reported in the thermoset pultrusion process, it is important to set the proper fiber pulling speed during pultrusion process. The pulling speed depends on the type of polymer matrix used, the amount of hardener and promoter used, and the size of the pultruded profiles.…”

Section: Introductionmentioning

confidence: 99%

The effect of pulling speed on mechanical properties of pultruded kenaf fiber reinforced vinyl ester composites

Fairuz

Sapuan

Zainudin

et al. 2016

Vinyl Additive Technology

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During the pultrusion process, there are some parameters that influence the mechanical performance of pultruded composites. The pultruded kenaf composites processing parameter such as pulling speed influenced the pressure and curing behavior of the pultruded composites. The optimal pulling speed leads to the sufficient pressure and temperature and facilitated curing the pultruded composites. Mechanical properties such as tensile strength and modulus, flexural strength and modulus, and compressive strength of kenaf pultruded composites were analyzed in this study and the optimal pulling speed of pultruded composites was determined. The tensile strength and tensile modulus showed the optimal pulling speeds at 0.3 and 0.1 m/min, respectively, while, flexural strength, flexural modulus, and compressive strength were at 0.4, 0.2, and 0.3 m/min, respectively. Scanning electron microscopy images were utilized to study the effect of pulling speed on the morphology of the tensile fracture sample. Fiber wetting, fiber matrix adhesion, the gaps within the samples, and fiber breakages were among the phenomena occurring in the composites. J. VINYL ADDIT. TECHNOL., 24:E13–E20, 2018. © 2016 Society of Plastics Engineers

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“…The approach is based on the hypothesis that at the border line temperature is constant. Analysis of the solution of heat conduction and polymerization by method of finite differences [8] showed that this hypothesis holds. The influence of the pull speed, the type of filler and fiber volume fraction on the position of the border polymerization line is investigated.…”

Section: Resultsmentioning

confidence: 99%