Optimizing the environmentally friendly silica-cellulose aerogel composite for acoustic insulation material derived from newspaper and geothermal solid waste using a central composite design

Silviana, Silviana; Hermawan, Ferry; Indracahya, Joshua; Kusumawardhani, Dinda Ajeng Lestari; Dalanta, Febio

doi:10.1007/s10971-022-05831-y

Cited by 19 publications

(10 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the cellulose–silica aerogel was made from recycle cellulose fiber and geothermal silica, it has a high SAC value compared to several previous studies. Sadly, this value is lower than that in the research conducted by Silviana et al This is probably due to the use of different chemicals to improve the solubility of NaOH solution. The previous study used polyethylene glycol (PEG), which can stabilize cellulose solution .…”

Section: Resultsmentioning

confidence: 60%

“…The sound absorption coefficients (SACs) of the silica–cellulose aerogels lie between 0.39 and 0.50, which are better than those of cellulose aerogels (0.30–0.40). Furthermore, the synthesis of a silica–cellulose aerogel composite from waste newspaper-based cellulose, silica from geothermal solid waste, and NaOH/PEG solution for acoustic insulation materials has been investigated using a central composite design (CCD) method by Silviana et al 73 The optimization result showed the optimum point at 1.78 w/v % PEG and 25 wt % cellulose releasing a maximum SAC value of 0.9896.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of the Sound Absorption Coefficient (SAC) from Cellulose–Silica Aerogel Using the Box–Behnken Design

et al. 2022

Self Cite

View full text Add to dashboard Cite

Noise pollution, which has become a major environmental issue in urban areas, can be minimized using acoustic insulation derived from cellulose–silica aerogel. The raw materials required in the process include waste newspaper-based cellulose, geothermal silica, and NaOH/ZnO solution. Therefore, this study investigates the effect of cellulose, silica, and ZnO concentrations on optimizing the sound absorption coefficient (SAC) using the Box–Behnken design (BBD). The results showed that the optimum conditions were obtained at 39.8578 wt % cellulose, 16.5428 wt % silica, and 0.5684 wt % ZnO. The impedance test for the cellulose aerogel and cellulose–silica aerogel showed SAC values of 0.59 and 0.70, respectively, and were characterized by XRD, FTIR, BET–BJH, SEM–EDX, and TG. The results of XRD and FTIR data indicate that the product was cellulose–silica aerogel, and the SEM micrographs showed that silica particles were attached to the fiber surface. Furthermore, type IV isotherms were observed in the cellulose–silica aerogel, typical of mesoporous materials. The presence of silica strengthened the aerogel structure, improved its thermal stability, and increased the surface area but decreased its pore size.

show abstract

Section: Resultsmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Optimization of the Sound Absorption Coefficient (SAC) from Cellulose–Silica Aerogel Using the Box–Behnken Design

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…(1581 cm −1 ) reflecting the characteristic peaks induced in the face of sp 2 carbon atoms, and the D peak (1350 cm −1 ) indicating the characteristics of graphene such as defects and vacancies [44]. The characteristic peaks that represent CEL are also found at 2946 cm −1 , which proves that the complexation of GO with CEL is successful.…”

Section: Resultsmentioning

confidence: 75%

“…In the CEL-GO composite aerogel material, there are backbone stretching vibration peaks of the benzene ring C=C (1430 cm −1 ), absorption vibration peaks of C-O-C (1048 cm −1 ), and stretching vibration peaks of C=O (1720 cm −1 ), which represent GO [43], and a new ester group peak (1740 cm −1 ) appeared in the CEL-GO composite aerogel material, indicating that GO successfully bonded to the CEL aerogel by forming a new chemical bond. In Figure 3, 2946 cm −1 is the C-H stretching vibration peak of CEL, and all CEL aerogels after GO composite have characteristic peaks representing graphene carbon materials, such as the G peak (1581 cm −1 ) reflecting the characteristic peaks induced in the face of sp 2 carbon atoms, and the D peak (1350 cm −1 ) indicating the characteristics of graphene such as defects and vacancies [44]. The characteristic peaks that represent CEL are also found at 2946 cm −1 , which proves that the complexation of GO with CEL is successful.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Acoustic Performance of Porous Aerogel Composites of Graphene Oxide and Cellulose

Shao,

Lv,

Xue

et al. 2024

Coatings

View full text Add to dashboard Cite

In this study, sound insulation materials with a high sound absorption coefficient were prepared. In this paper, using cellulose (CEL) and graphene oxide (GO) as the main raw materials and epichlorohydrin as the cross-linker, the CEL-GO composite aerogels were prepared via lyophilisation. The structure, molecular bonding, and acoustic absorption mechanisms of the composite aerogel were characterised and analysed using SEM, FTIR, XRD, BET, and Raman. In addition, corresponding molecular structure models were constructed. The acoustic attenuation of the CEL-GO composite aerogel was measured using a standing wave tube acoustic attenuation tester. The results show that the chemical bond between the GO and CEL composite is established, and the addition of graphene makes the pores of the composite more advanced, which is more favorable for sound absorption, and the acoustic absorption coefficient can reach up to 0.87.

show abstract

“…The variable nature and advantageous qualities of nanocellulose-based aerogels, which are made from cellulose nanocrystals (CNCs), cellulose nanofibers (CNFs), or bacterial cellulose (BCs), include large surface area, high thermal and chemical stabilities, and customizable porosity structure . They have been employed as renewable parts in thermal insulation, optical performance, sensing, oil/water separation, wound dressing, catalyst support, and sound absorption. − Nevertheless, the flammability of aerogels made from CNF remains a significant limitation that impedes their use in this particular application. To meet strict safety regulations, it is imperative to achieve a substantial enhancement in flame retardancy while maintaining insulating qualities and thermal and mechanical stabilities.…”

Section: Introductionmentioning

confidence: 99%

Harnessing the Flexibility of Lightweight Cellulose Nanofiber Composite Aerogels for Superior Thermal Insulation and Fire Protection

Bhardwaj,

Singh,

Dev

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Thermally insulating materials from renewable and readily available resources are in high demand for ecologically beneficial applications. Cellulose aerogels made from lignocellulosic waste have various advantages. However, they are fragile and breakable when bent or compressed. In addition, cellulose aerogels are flammable and weather-sensitive. Hence, to overcome these problems, this work included the preparation of polyurethane (PU)based cellulose nanofiber (CNF) aerogels that had flexibility, flame retardancy, and thermal insulation. Methyl trimethoxysilane (MTMS) and water-soluble ammonium polyphosphate (APP) were added to improve the cross-linking, hydrophobicity, and flame-retardant properties of aerogels. The flexibility of chemically cross-linked CNF aerogels is enhanced through the incorporation of polyurethane via the wet coagulating process. The aerogels obtained during this study have exhibited low weight (density: 35.3− 91.96 kg/m 3 ) together with enhanced hydrophobic properties, flame retardancy, and decreased thermal conductivity (26.7−36.7 mW/m K at 25 °C). Additionally, the flame-retardant properties were comprehensively examined and the underlying mechanism was deduced. The aerogels prepared in this study are considered unique in the nanocellulose aerogel category due to their integrated structural and performance benefits. The invention is considered to substantially contribute to the large-scale manufacture and use of insulation in construction, automobiles, and aerospace.

show abstract

Optimizing the environmentally friendly silica-cellulose aerogel composite for acoustic insulation material derived from newspaper and geothermal solid waste using a central composite design

Cited by 19 publications

References 55 publications

Optimization of the Sound Absorption Coefficient (SAC) from Cellulose–Silica Aerogel Using the Box–Behnken Design

Optimization of the Sound Absorption Coefficient (SAC) from Cellulose–Silica Aerogel Using the Box–Behnken Design

Preparation and Acoustic Performance of Porous Aerogel Composites of Graphene Oxide and Cellulose

Harnessing the Flexibility of Lightweight Cellulose Nanofiber Composite Aerogels for Superior Thermal Insulation and Fire Protection

Contact Info

Product

Resources

About