Using a Novel Fly Ash Based Calcium Silicate as a Potential Paper Filler

Zhang, Meiyun; Song, Shunxi; Wang, Jian; Sun, Junmin; Li, Jack Z.; Ni, Yonghao; Wei, Xiaofen

doi:10.15376/biores.8.2.2768-2779

Cited by 25 publications

(15 citation statements)

References 9 publications

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“…In the case of highly filled papers, more void spaces between pulp fibers can allow the additional infiltration of the papers with filler particle suspensions. The infiltration of preceramic papers with ceramic slurries has been confirmed to be a viable process for increasing the amount of the particulate filler in papers …”

Section: Design and Manufacturing Of Highly Filled Papersmentioning

confidence: 99%

Highly Filled Papers, on their Manufacturing, Processing, and Applications

et al. 2019

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Since more than a decade ago, the research on highly filled papers, as well as paper-derived inorganic materials, has greatly intensified. As presented in this review, highly filled papers as preforms allow for the design of porous or dense, multilayered, and geometrically complex structures. These paperderived ceramic-or metal-based materials are generated by the heattreatment of highly filled papers. Paper-derived materials are potential materials of choice for applications in transportation, energy-generation, environmental conservation, support structures, medical uses, and electronic components. Due to the adjustability of the filler content and the good machinability of highly filled papers, paper-derived sheets or multilayers may include intricate structures and tailored gradients in phase structure or porosity. Paper-derived multilayers also may contain cast ceramic tapes or other functionalized layers, as presented in some examples. Computer-aided manufacturing processes for paper-derived materials can be supplemented by prediction models for the sintering shrinkage in order to identify optimal post-processing steps, stacking orders and orientations for highly filled paper layers within multilayer green bodies. The accuracy of established component-level sintering models can be significantly increased by microstructure models of the highly filled paper. ParameterName Unit α Mismatch parameter for fiber cross-sections, Equation (5) Dimensionless α p Layer position in viscoelastic paper structure model, Equation (2) Dimensionless A 0 Initial amplitude of perturbation, Equations (15) 10 À6 m A(f) Parameter for evolution of instantaneous carbon conversion rate, Equation (7) Dimensionless A diff Source controlled diffusion parameter, Equations (9) 10 À7 N A match Modeling parameter, Equations (8) Dimensionless a Inter-particle contact-area radius, Equations (19) 10 À8 m a Local average pore area, Equation (4) 10 À6 m 2 b Pore geometry constant, Equation (20) Dimensionless ß evo , m evo Empirical constants for grain evolution in SOVS model, Equation (8) Dimensionless ß r(c)p Proportionality constant for bimodal packing fraction determination, Equation (18) Dimensionless C Modeling constant for debindering pressure calculation, Equation (7) 10 À6 (m 2 Á s)/K C 1 , C 2 , C 3 , C 4 , C 5 Parameters in the Riedel model that are determined by the dihedral angle, Equations (9) Dimensionless c glue Heat capacity of the adhesive layers, Equation (3) 10 À6 s c L , c s Volume fraction of larger-sized/smaller-sized particles in a multimodal mixture of particles, Equation (17)and (18) 10 0 vol% c vol Volume concentration of pulp fibers, Equation (4) 10 0 vol% γ, γ 0 Strain relaxation rate of calendered paper with initial value, Equation (2) Dimensionless γ B Grain boundary energy density, Equation (13) 10 0 J m À2 γ b Specific energy for grain boundary diffusion, Equation (9) 10 3 J mol À1 γ S Material surface energy, Equation (8, 11, and 13) 10 0 J m À2 Δ Half of the inter-particle boundary thickness, Equation (19) 10 À8...

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Section: Design and Manufacturing Of Highly Filled Papersmentioning

confidence: 99%

Highly Filled Papers, on their Manufacturing, Processing, and Applications

et al. 2019

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“…To meet market needs related to high quality, it is necessary to conduct laboratory-scale research, especially on supporting raw materials for paper making such as mineral fillers. Mineral filler is the second raw material after fiber is used for several grades of paper [1]. Mineral fillers are used on printing paper and writing paper to improve the optical properties and printing power of paper.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Blood Cockle Shell (Anadara Granosa) Waste and Silica Sand in Manufacturing Calcium Silicate as Fillers in Paper Making Industry

Syafri¹,

Nasution²,

Manurung³

2019

Proceedings of the International Conference of CELSciTech 2019 - Science and Technology Track (ICCELST-ST 2019)

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This research aims to utilize blood cockle shell waste and silica sand as a new innovation in the manufacture of calcium silicate minerals which were used as fillers in paper making industry. In this study the manufacture of calcium silicate mineral fillers (CaSiO3) used solid state reaction technique at a temperature of 1000 o C. Some researchers have tested the use of blood cockle shells as the raw materials for making calcium silicate, so further research was needed to find out whether the calcium silicate produced can be used in paper making. Sample characterization was carried out with Fourier Transform Infrared (FTIR), Keyence microscopy and X-Ray Diffraction (XRD). The results showed that the calcium silicate phase contained the wollastonite-1A phase (CaSiO3) with the highest intensity peak at an angle of 2θ = 26.8225. FTIR analysis also showed the structure of calcium silicate with the formation of Si-O-Si and O-Si-O functional groups at a wavelength of 460 cm-1 , Si-O-Ca at a wavelength of 962 cm-1 and O-Si-O cm-1 at a wavelength of 901 cm-1. The microstructure analysis using Keyence microscope showed that the sample granules were globular in shape with a particle size of approximately 14 µm. From all the paper testing results consist of brightness, bulk density, tearing, bursting, tensile and folding endurance showed that calcium silicate filler has fulfill the TAPPI International standard.

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“…The interest in fly ash has sharply increased lately because of the specific chemical and physical properties of the material. Fly ash has huge potential for application in the paper industry because of its size, shape, and chemical composition, which are similar to that of the paper-making filler kaolin (Horiuchi 2000;Zhang et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of the Formulation Control Agent on Brightness of Modified Fly Ash and Its Potential Application in Papermaking

Fan¹,

Song²,

Wang³

et al. 2018

BioResources

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Different agents were used to control the crystalline morphology of calcium carbonate on the surface of fly ash, which was then used as a papermaking filler in an attempt to improve the utilization rate of fly ash and reduce the dust pollution problem. A mixed solution of calcium hydroxide and fly ash was used as the raw materials, and then three crystal form control agents were tested: (NaPO3)6, ZnCl2, and Na2B4O7·10H2O. A certain amount of carbon dioxide was bubbled into the mixture to form a precipitated calcium carbonate deposit on the surface of fly ash. The calcium carbonate on the fly ash surface was altered by changing the amount of crystal form control agent to determine the best coating effect. The results showed that at the 0.35% ZnCl2 dosage (relative to the theoretical quantity of the calcium carbonate), the surface of the fly ash was uniformly coated with a layer of spherical calcium carbonate crystals and there was a good coating effect. The highest fly ash brightness obtained was 65.3% ISO, and when this fly ash was used as a paper filler, the paper brightness was 75.6% ISO. More importantly, this study demonstrated the potential of fly ash in papermaking.

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Using a Novel Fly Ash Based Calcium Silicate as a Potential Paper Filler

Cited by 25 publications

References 9 publications

Highly Filled Papers, on their Manufacturing, Processing, and Applications

Highly Filled Papers, on their Manufacturing, Processing, and Applications

Utilization of Blood Cockle Shell (Anadara Granosa) Waste and Silica Sand in Manufacturing Calcium Silicate as Fillers in Paper Making Industry

Effect of the Formulation Control Agent on Brightness of Modified Fly Ash and Its Potential Application in Papermaking

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