Preparation of high strength PET/PE composites reinforced with continued long glass fibers

Mao, Yapeng; Shao, Chengli; Shang, Peng; Li, Qiuying; He, Xuelian; Wu, Chifei

doi:10.1088/2053-1591/aace48

Cited by 6 publications

(6 citation statements)

References 23 publications

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“…Broadly speaking, the mechanical behavior of L-FRPs depends on three main factors: average fiber length, fiber orientation, and fiber concentration [ 3 , 4 ]. Over the last decade, L-FRPs have been intensely studied and are now widely used in the industry [ 5 , 6 , 7 ]. There are two commonly used types of processing technology used for glass fiber reinforced polymer composites: short glass fiber and continuous L-FRP composites [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

The Low Breaking Fiber Mechanism and Its Effect on the Behavior of the Melt Flow of Injection Molded Ultra-Long Glass Fiber Reinforced Polypropylene Composites

et al. 2021

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In this study, fiber breaking behavior, fiber orientation, length variation, and changes in melt flow ability of long glass fiber reinforced polypropylene (L-FRP) composites under different mold cavity geometry, melt fill path, and plasticization parameters were investigated. The matrix material used was polypropylene and the reinforcement fibers were 25 mm long. An ultra-long-fiber composite injection molding machine (with a three-stage plunger and injection mechanism design) was used with different mold cavity geometry and plasticization parameters. Different screw speeds were used to explore the changes in fiber length and to provide a reference for setting fiber length and parameter combinations. Flow-length specimen molds with different specimen thickness, melt fill path, and gate design were used to observe the effect of plasticizing properties on the flow ability of the L-FRP composite materials. The experimental results showed that the use of an injection molding machine with a mechanism that reduced the amount of fiber breakage was advantageous. It was also found that an increase in screw speed increased fiber breakage, and 25 mm long fibers were shortened by an average of 50% (to 10 mm). Long fibers were more resistant to melt filling than short fibers. In addition, the thickness of the specimen and the gate design were also found to affect the filling process. The rounded angle gate and thick wall product decreased the flow resistance and assisted the flow ability and fiber distribution of the L-FRP injection molding.

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Section: Introductionmentioning

confidence: 99%

The Low Breaking Fiber Mechanism and Its Effect on the Behavior of the Melt Flow of Injection Molded Ultra-Long Glass Fiber Reinforced Polypropylene Composites

et al. 2021

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“…The results obtained from SEM images denote continuous, slender, long fibers, which is an important factor in induced strengthening effects. It was noted that the mechanical properties of continuous long glass fiber-reinforced composites are superior to those of short glass fiber [ 57 , 58 ].…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, the silane treatment of the fibers may be responsible for the suitable adhesion of the fillers to the composite [ 50 , 51 ]. In addition, the employment of continuous, long E-glass fibers may cause an improvement in the compressive strength [ 57 , 58 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of compressive strength, microhardness and solubility of zinc-oxide eugenol cement reinforced with E-glass fibers

Hamdy

2024

BMC Oral Health

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Background Zinc-oxide eugenol (ZOE) cements are among the most used temporary materials in dentistry. Although ZOE has advantages over other temporary fillers, its mechanical strength is weaker, so researchers are working to improve it. E-glass fibers have emerged as promising reinforcing fibers in recent years due to their strong mechanical behavior, adequate bonding, and acceptable aesthetics. Objectives To evaluate and compare the compressive strength, surface microhardness, and solubility of the ZOE and those reinforced with 10 wt.% E-glass fibers. Methods A total of 60 ZEO specimens were prepared; 30 specimens were reinforced with 10 wt.% E-glass fibers, considered modified ZOE. The characterization of the E-glass fibers was performed by XRF, SEM, and PSD. The compressive strength, surface microhardness, and solubility were evaluated. Independent sample t-tests were used to statistically assess the data and compare mean values (P ≤ 0.05). Results The results revealed that the modified ZOE showed a significantly higher mean value of compressive strength and surface microhardness while having a significantly lower mean value of solubility compared to unmodified ZOE (P ≤ 0.05). Conclusion The modified ZOE with 10 wt.% E-glass fibers had the opportunity to be used as permanent filling materials.

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“…The analysis of the influence of various factors on the process of chloride penetration into the concrete structure was performed. Also, the difficulty of introduced mathematical models may be caused by the use of new or modified materials for the structure manufacturing (Federowicz et al, 2021;Mao et al, 2019). The article (Czajkowska et al, 2020) analyzes the influence of different humidity conditions on selected strength properties of hardened steel-fiber concrete (such as Young's modulus and compressive strength of concrete).…”

Section: Introductionmentioning

confidence: 99%

Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement

Selejdak

Bobalo

Blikharskyy

et al. 2023

Production Engineering Archives

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Most of the modern computer software for the building structures‘ calculation is based on mathematical dependencies which make it possible to analyse rather complex stress-strain state of structures subjected to loading. As a rule, the calculation is based on the finite element method and is reduced to the calculation of deformations arising in structures due to the action of external forces with the use of real strain diagrams of materials, σ-ε diagrams for concrete and reinforcement. Modern normative regulations for reinforced concrete structures‘ calculation are also based on the deformation model using material deformation diagrams, which are as close to the real ones, as possible. Therefore, this study was aimed to investigate in more detail the stress-strain state and the physical essence of the processes occurring in reinforced concrete structures with combined reinforcement according to mathematical approaches and regulations of DBN B.2.6-98:2009 and DSTU B. In 2.6-156:2010. Namely, in the research is analysed the combined reinforcement of S245 steel tapes and A1000 rebar, which is used in the production of reinforced concrete elements. The results of mathematical modelling were compared with the calculation results, according to DBN B.2.6-98: 2009 and DSTU B. B 2.6-156:2010, as well as with field experimental data. Therefore, the conclusion could be made, whether it is possible to use this technique with sufficient accuracy to calculate reinforced concrete structures with combined reinforcement.

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Preparation of high strength PET/PE composites reinforced with continued long glass fibers

Cited by 6 publications

References 23 publications

The Low Breaking Fiber Mechanism and Its Effect on the Behavior of the Melt Flow of Injection Molded Ultra-Long Glass Fiber Reinforced Polypropylene Composites

The Low Breaking Fiber Mechanism and Its Effect on the Behavior of the Melt Flow of Injection Molded Ultra-Long Glass Fiber Reinforced Polypropylene Composites

Evaluation of compressive strength, microhardness and solubility of zinc-oxide eugenol cement reinforced with E-glass fibers

Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement

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