The effect of fibre sizing on the modification of basalt fibre surface in preparation for bonding to polypropylene

Ralph, Calvin; Lemoine, P.; Boyd, Adrian; Archer, Edward; McIlhagger, Alistair

doi:10.1016/j.apsusc.2019.01.001

Cited by 39 publications

(8 citation statements)

References 44 publications

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“…In this regard, several functionalities have been investigated [ 26 ] in addition to the design of specific sizings. Recently, Ralph et al discussed the effects of four innovative sizings for basalt fibers optimized for PP, both at the fiber/matrix scale [ 27 ] and at the composite scale [ 28 ]. One sizing, by decreasing the polar component of the fiber’s surface energy, was found to be particularly effective in increasing the tensile and flexural properties of the resulting composites at the expense of the impact strength.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Cellulose–Basalt Polypropylene Composites with Enhanced Compatibility: The Role of Coupling Agent

et al. 2020

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This study deals with the development and optimization of hybrid composites integrating microcrystalline cellulose and short basalt fibers in a polypropylene (PP) matrix to maximize the mechanical properties of resulting composites. To this aim, the effects of two different coupling agents, endowed with maleic anhydride (MA-g(grafted)-PP) and acrylic acid (AA-g-PP) functionalities, on the composite properties were investigated as a function of their amount. Tensile, flexural, impact and heat deflection temperature tests highlighted the lower reactivity and effectiveness of AA-g-PP, regardless of reinforcement type. Hybrid formulations with basalt/cellulose (15/15) and with 5 wt. % of MA-g-PP displayed remarkable increases in tensile strength and modulus, flexural strength and modulus, and notched Charpy impact strength, of 45% and 284%, 97% and 263%, and 13%, in comparison with neat PP, respectively. At the same time, the thermo-mechanical stability was enhanced by 65% compared to neat PP. The results of this study, if compared with the ones available in the literature, reveal the ability of such a combination of reinforcements to provide materials suitable for automotive applications with environmental benefits.

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Section: Introductionmentioning

confidence: 99%

Hybrid Cellulose–Basalt Polypropylene Composites with Enhanced Compatibility: The Role of Coupling Agent

et al. 2020

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“…It has excellent high-temperature infrared shading and low thermal conductivity (0.031~0.038 W/(m•K)) [31]. Its mechanical properties are better than those of plant fiber and similar to those of glass fiber [32]. At the same time, basalt fiber is also widely used as reinforcing fiber to improve the mechanical properties and durability of concrete because of its excellent mechanical properties, high temperature resistance, acid and alkali resistance, raw material availability, and environmental protection production process [33].…”

Section: Scholar Materials Thermal Conductivity (W/(m•k)) Compressive...mentioning

confidence: 99%

Research on New Solid Waste Heat Insulation Material for Deep Mining

Wen

Zheng

2023

Minerals

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The global demand for mineral resources has led to the gradual transformation of the mining industry from the traditional shallow, small-scale mining mode to the high-intensity mining of deep underground mines. Due to the high stress, high temperature, high permeability, and easy disturbance of deep mines, new challenges have been brought to the mining of materials. Some scholars have improved the thermal insulation performance of concrete by adding low thermal conductivity materials such as ceramsite, shell, and natural fiber to traditional shotcrete, but there are still high costs, insufficient support strength, and unsatisfactory thermal insulation effects. Given the background related to the fact that it is still not possible to fully recycle the large amount of solid waste generated by mining activities, this paper, with traditional shotcrete as its basis, uses coal fly ash to replace part of the cement and tailings to replace part of the sand and gravel aggregate. In addition, it adds basalt fiber to reduce thermal conductivity and restore strength. An orthogonal experiment of three factors and three levels was designed to explore a new type of solid waste-based thermal insulation support shotcrete material. Through the testing and analysis of the mechanical and thermal properties of the specimens, it was concluded that the optimal ratio of the materials was 45% fly ash, 50% tailings, and 25% basalt fiber (the percentage of the total mass of fly ash and cement). The compressive strength of the specimens after curing for 28 days could reach 16.26 MPa, and the thermal conductivity and apparent density were 0.228561 W/(m·k) and 1544.00 kg/m3, respectively. By using COMSOL Multiphysics multi-physics coupling software to analyze the coupling of the stress field and temperature field, it was concluded that the optimum thickness of the thermal insulation layer of this material was 150 mm. The field application in a mine in Shandong Province proved that it met the effects of thermal insulation (the ability to isolate heat conduction) and support. The successful trial of this material provides a new idea for the solving of the problem of heat damage and solid waste utilization in deep mines, which has a certain practical significance.

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“…The design of the experimental formula is based on the twocomponent toughened fiber. The fluidity of the cement slurry will be affected due to the incorporation of the fiber, because the dry chopped fiber is easy to have a large friction force between the fibers, so by controlling the fiber addition (Ralph et al, 2019;Hasan et al, 2021), the total addition is ensured to be less than 0.3%, and the hybrid fiber material is also modified to a certain extent. This includes fiber surface pretreatment and modification.…”

Section: Fiber Dispersion Treatmentmentioning

confidence: 99%

Evaluation and high temperature strengthening mechanism of alkali activated biological-ash hybrid glass fiber-carbon fiber cement slurry system

2022

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In recent years, with the rapid development of biomass combustion power generation and heat generation as the main application industry, the amount of byproduct biological ash is also increasing year by year. How to effectively utilize the biological ash in a more green, environmental friendly and economic way has become a research hotspot. In view of the problem that the mechanical properties of the cement stone decreased when the conventional latex was used as the toughening agent, based on the introduction of high dispersive composite modified fiber to enhance the toughness of the cement stone, this paper analyzed the physical and chemical properties and application status of the biological ash, and further explored the influence and role of the biological ash as the cement stone admixture on the high-temperature mechanical properties of the composite fiber cement stone Mechanism. The results show that when the dosage of biological ash is in the range of 0–10% (wt%), it has little effect on the basic slurry properties of cement stone, and has a certain preventive effect on the gas channeling of cement stone. In the analysis of comprehensive mechanical properties, the activated biological ash can enhance the compactness of cement matrix under high temperature by reducing the Ca/Si ratio through the secondary pozzolanic effect, stimulate the formation of a large number of hydration products, and strengthen the later strength growth rate of cement. The high temperature resistance of cement paste can be effectively improved by hybrid high dispersion composite fiber.

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The effect of fibre sizing on the modification of basalt fibre surface in preparation for bonding to polypropylene

Cited by 39 publications

References 44 publications

Hybrid Cellulose–Basalt Polypropylene Composites with Enhanced Compatibility: The Role of Coupling Agent

Hybrid Cellulose–Basalt Polypropylene Composites with Enhanced Compatibility: The Role of Coupling Agent

Research on New Solid Waste Heat Insulation Material for Deep Mining

Evaluation and high temperature strengthening mechanism of alkali activated biological-ash hybrid glass fiber-carbon fiber cement slurry system

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