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19 Oct 2012
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access type Open Access

Improvement of Physical Properties of Viscose Using Nano GeO2 as Doping Material

Published Online: 07 Apr 2021
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Journal Details
License
Format
Journal
First Published
19 Oct 2012
Publication timeframe
4 times per year
Languages
English
Abstract

The properties of viscose\TiO2 and viscose\TiO2\germanium dioxide (GeO2) are investigated and compared. The elemental mapping analysis using a field emission scanning electron microscope (FESEM) shows the excellent distribution of nanomaterials, while the energy dispersive X-ray (EDX) confirms its existence. The 500 s cycle of rubbing test indicates that the abrasion resistance of treated samples improves significantly. In addition, the doping of nano GeO2 enhances the strength of the treated samples. Furthermore, the thermal behavior of the treated samples, characterized by differential scanning calorimeter (DSC), results in a higher crystallization temperature and doping GeO2 increases the thermal properties of viscose in comparison with nano TiO2. The study of ultraviolet blocking indicates that doping GeO2 can improve the transmission of ultraviolet even from TiO2.

Keywords

Introduction

In the past decade, researches have been conducted on immobilizing nanomaterials and nanostructures on fiber or fabric to obtain new properties in the final product. Recently, the ultraviolet (UV) protection activity of fibers or fabrics has gained much attention because of its ability to prevent diseases [1,2,3,4,5,6]. Many studies have reported the UV protection activity of nano titania and its virtuous properties on fabrics [7,8,9]. This paper has made an attempt to enhance this property.

The main application of titania is as an adsorbent, catalytic support, and in pigments. This nanomaterial has many applications such as in photo degradation, as a bactericidal, and for its UV blocking property and low toxicity [10,11,12,13,14].

Germanium dioxide (Germania; GeO2) is an inorganic compound which forms a passive layer on pure germanium in contact with oxygen with low toxicity, as well as consists of a hexagonal and tetragonal crystalline morphology. There is a lack of scientific research on the effect of Germania on textile property; this study has made an attempt to study and investigate the physical properties of viscose crosslinked with Germania [15,16,17,18]. In the crosslink method, free carboxylic groups (two groups) must be available to interlink the nanoparticle and cellulose. In this method, a covalent ester bond is set up and a hydroxyl group of cellulose will perform esterification by one carboxylic group of the crosslink factor while the other carboxylic group of the crosslink factor connects to the nanoparticles [19].

Viscose is regenerated natural fiber, whose physical properties [20,21,22]are used as a renewable resource for the development of environment friendly, biocompatible, and functional materials. Viscose is made of cellulose and the cellulosic textiles present a polar surface which is associated with the hydroxylated nature constituting of hydroglucose units. This property is responsible for the high hydrophilicity of cellulose, which enables the establishment of strong hydrogen bonding between fibers and the setting up of three-dimensional fiber-based structures. It is worth mentioning that the existence of these hydrophilic groups can develop nucleation and the formation of inorganic phases like titania and metal oxides, helping in generating the multifunctional properties of viscose [23,24,25,26]. The thermal behavior of viscose is of importance in the textile industry. The differential scanning calorimetry (DSC) is a thermos analytical method which measures the difference in the amount of heat needed to enhance the temperature of a specimen as a function of temperature [27,28,29,30].

Materials, methods, and characterization

GeO2 (CAS Number 1310538) nanopowder at a density of 4.23 g/cm3 was purchased from Sigma Aldrich. In addition, P-25 nano titanium dioxide was prepared from Degussa. The 100% plain weave bleached viscose fabric with a warp density of 24 yarn/cm and 20 yarn/cm weft and fabric weight of 119.5 g/m2 was prepared by the Yazdbaf Company. Sodium hypo-phosphate and succinic acid were purchased from Merck.

Initially, the viscose fabric was washed with distilled water to remove any impurities. The crosslink method was used to conjugate the nanomaterials and fabric; 3%w/w succinic acid and 2%w/w sodium hypo-phosphate were prepared and the washed viscose fabric was immersed in this solution for 60 min. Then the sample was dried in an oven at a temperature of 170 °C for 2 min. Meanwhile, the GeO2 and TiO2 nanopowders were sonicated in an ultrasonic bath (Euronda ultrasonic bath model Eurosonic 4D, 350 W, 50/60 Hz, Italy) at 40 °C for 50 min at 1% and 2% respectively. The treated fabric immersed in nano solution was sonicated again at 50 °C for 30 min. Later, the finished fabric was heated at 100 °C in an oven for 5 min to fix the nanoparticles on the fabric. Then, the sample was washed with distilled water to remove the unbounded particles. This process was repeated with only nano TiO2. Therefore, two samples of viscose/TiO2 and viscose/TiO2/GeO2 were prepared.

The morphology of the treated samples was investigated by a field emission scanning electron microscope (FESEM; MIRA3-TESCAN). UV transmission of the treated samples was examined by the Perkin Elmer Lambda ultraviolet-visible (UV–vis) spectrophotometer. DSC analyses were conducted by Shimadzu DSC-50 at a heating rate of 10 °C/min.

Abrasion test was done through AATCC TM93. The samples were driven by a rotor along a zigzag course in a circular orbit within a cylindrical chamber, so that it repeatedly impinged on the walls and the abrading liner of the chamber, while at the same time being continuously subjected to rapid, high-velocity impacts. Rubbing test of 500 cycles was done for each sample and the difference in mass of the samples was calculated.

Results and discussion
FESEM, map images, and EDX analysis

The FESEM method was implemented to study the morphology of nanomaterials coated on the surface of fabric. The voltage and magnification of the device was set to 15 kV and 500x, respectively. Figure 1(a) shows the excellent distribution of nanomaterials and with the absence of aggregation or agglomeration of nanoparticles. It also demonstrates 30 nm as the average particle size of nanomaterials. Therefore, the coating of nanomaterials on the fabric surface is acceptable. However, the energy dispersive X-ray (EDX) spectra of the treated sample show the presence of nano TiO2 and GeO2 (Figure 2). FESEM also demonstrates the distribution of nanoparticles by elemental mapping analysis. Figure 1(B–D), respectively, shows the FESEM of the treated sample; indicates its elemental mapping of Ge; and indicates the elemental mapping of Ti. As shown, the presence and distribution of these two nanoparticles on the surface of fabric is good and monotone.

Figure 1

FESEM images of (A) treated sample, (B) map of the treated sample, (C) elemental mapping of Ge, and (D) elemental mapping of Ti.

Figure 2

EDX image of the treated sample. EDX, energy dispersive X-ray.

Abrasion resistance and strength analysis

Abrasion assessment was done using the rub tester. For the treated and untreated samples, 500 cycles of rubbing test was performed and the weight difference before and after abrasion was calculated. Table 1 illustrates the mean data and abrasion resistance. The results show that the abrasion resistance of the treated sample is higher than that of the untreated sample. Additionally, the abrasion resistance of viscose\TiO2\GeO2 is higher than viscose\TiO2. This can be explained by the mechanical properties of GeO2, which is clearly visible from the FESEM figures, showing that all the surfaces of the treated sample are coated uniformly by nanoparticles. The tensile force of the treated or untreated samples was calculated by ISO 5079-breaking strength test. The results indicate that using nanomaterials increases the strength of viscose (Figure 3). It is worth mentioning that the strength of viscose\TiO2\GeO2 is greater than viscose\TiO2, which indicates that doping of GeO2 can improve the physical properties of fabric.

Figure 3

Strength of sample.

Abrasion resistance of samples

SampleFabric weight before abrasion (g)Fabric weight after abrasion (g)Abrasion resistance (%)
Raw viscose3.0132.48682.50
Viscose\TiO22.8912.46485.23
Viscose\TiO2\GeO22.8362.57890.90
DSC analysis

The DSC method was used to analyze the treated and untreated samples. In this test, the treated and untreated fabrics were rapidly heated to 230 °C and maintained at this temperature for 3 min (to remove any thermal history and stresses). The samples were later cooled at room temperature of 10 °C/min. Figure 4 illustrates the DSC curve of samples. As shown, the exotherms maxima are at 182 °C for the untreated and 187 °C for the treated sample. The crystallization curves occurred while cooling. Comparison of the two spectra reveals that the crystallization peak is shifted toward the high temperature for the treated sample, which contains nanoparticles.

Figure 4

DSC spectra of samples. DSC, differential scanning calorimeter.

UV/Vis transmission property

UV/Vis transmission of the raw and treated samples was investigated based on the AATCC Test method 183–2004. Figure 5 illustrates the spectra. The irradiation wavelength of 200–800 nm shows that the raw sample has higher transmittance in comparison to the contained nanomaterials. It means that UV protection of the treated samples is better than that of the raw sample. Furthermore, doping GeO2 to the viscose\TiO2 improves the UV blocking remarkably. This is due to the synergetic UV absorption of nano GeO2.

Figure 5

UV/Vis transmission of samples.

Conclusion

Viscose fabric containing nano TiO2 and GeO2 was produced by the crosslink method. Raw sample, viscose\TiO2 and viscose\ TiO2\GeO2 were characterized by FESEM. The nanomaterial particle size was about 30 nm and the EDX analysis proved their existence. Elemental mapping analysis of the samples by FESEM indicates the good distribution of nanoparticles on the surface of viscose fabric. Meanwhile, the thermal behavior of the treated samples was characterized by DSC, resulting in a higher crystallization temperature. The doping of nano GeO2 enhances the thermal properties of viscose in comparison to nano TiO2. Also, the result of the transmission spectrophotometer shows good UV blocking of the viscose\ TiO2\GeO2 composite; however, the blank sample does not have suitable UV blocking, but by doping nano GeO2, its UV blocking property enhances greatly in comparison to viscose\ TiO2. This is because of the UV-blocking property of nano GeO2 and its synergetic UV adsorption. Furthermore, the abrasion resistance and strength of the treated samples improved significantly.

Data availability statement

The data used for this study are available on request from the corresponding author.

Figure 1

FESEM images of (A) treated sample, (B) map of the treated sample, (C) elemental mapping of Ge, and (D) elemental mapping of Ti.
FESEM images of (A) treated sample, (B) map of the treated sample, (C) elemental mapping of Ge, and (D) elemental mapping of Ti.

Figure 2

EDX image of the treated sample. EDX, energy dispersive X-ray.
EDX image of the treated sample. EDX, energy dispersive X-ray.

Figure 3

Strength of sample.
Strength of sample.

Figure 4

DSC spectra of samples. DSC, differential scanning calorimeter.
DSC spectra of samples. DSC, differential scanning calorimeter.

Figure 5

UV/Vis transmission of samples.
UV/Vis transmission of samples.

Abrasion resistance of samples

SampleFabric weight before abrasion (g)Fabric weight after abrasion (g)Abrasion resistance (%)
Raw viscose3.0132.48682.50
Viscose\TiO22.8912.46485.23
Viscose\TiO2\GeO22.8362.57890.90

Karimi, L., Yazdanshenas, M. E., Khajavi, R., Rashidi, A., Mirjalili, M. (2014). Using graphene/TiO2 nanocomposite as a new route for preparation of electroconductive, self-cleaning, antibacterial and antifungal cotton fabric without toxicity. Cellulose, 21(5), 3813–3827.KarimiL.YazdanshenasM. E.KhajaviR.RashidiA.MirjaliliM.2014Using graphene/TiO2 nanocomposite as a new route for preparation of electroconductive, self-cleaning, antibacterial and antifungal cotton fabric without toxicityCellulose21538133827Search in Google Scholar

Yadav, A., Prasad, V., Kathe, A. A., Raj, S., Yadav, D., et al. (2006). Functional finishing in cotton fabrics using zinc oxide nanoparticles. Bulletin of Materials Science, 29(6), 641–645.YadavA.PrasadV.KatheA. A.RajS.YadavD.2006Functional finishing in cotton fabrics using zinc oxide nanoparticlesBulletin of Materials Science296641645Search in Google Scholar

Mohamadiyan, M., Zohoori, S., Davodiroknabadi A. (2020). Enhancing electro conductivity, antibacterial and UV blocking of cotton fabric by using graphene/zirconium dioxide nano composite. Indian Journal of Fibre & Textile Research, 45(2), 207–210.MohamadiyanM.ZohooriS.DavodiroknabadiA.2020Enhancing electro conductivity, antibacterial and UV blocking of cotton fabric by using graphene/zirconium dioxide nano compositeIndian Journal of Fibre & Textile Research452207210Search in Google Scholar

Memon, H., Yasin, S., Khoso, N. A., Memon, S. (2015). Study of wrinkle resistant, breathable, anti-UV nanocoated woven polyester fabric. Surface Review and Letters, 23(03), 1650003.MemonH.YasinS.KhosoN. A.MemonS.2015Study of wrinkle resistant, breathable, anti-UV nanocoated woven polyester fabricSurface Review and Letters23031650003Search in Google Scholar

Memon, H., Wang, H., Yasin, S., Halepoto, A. (2018). Influence of incorporating silver nanoparticles in protease treatment on fiber friction, antistatic, and antibacterial properties of wool fibers. Journal of Chemistry, 2018, 4845687.MemonH.WangH.YasinS.HalepotoA.2018Influence of incorporating silver nanoparticles in protease treatment on fiber friction, antistatic, and antibacterial properties of wool fibersJournal of Chemistry20184845687Search in Google Scholar

Yu, L., Memon, H., Bhavsar, P., Yasin, S. (2016). Fabrication of alginate fibers loaded with silver nanoparticles biosynthesized via Dolcetto grape leaves (Vitis vinifera cv.): Morphological, antimicrobial characterization and in vitro release studies. Materials Focus, 5(3), 216–221.YuL.MemonH.BhavsarP.YasinS.2016Fabrication of alginate fibers loaded with silver nanoparticles biosynthesized via Dolcetto grape leaves (Vitis vinifera cv.): Morphological, antimicrobial characterization and in vitro release studiesMaterials Focus53216221Search in Google Scholar

Zhao, J., Ge, K., Zhao, L., Zhang, S., Zeng, Y. (2017). Enhanced photocatalytic properties of CdS -decorated BiPO4 heterogeneous semiconductor catalyst under UV-light irradiation. Journal of Alloys and Compounds, 729, 189–197.ZhaoJ.GeK.ZhaoL.ZhangS.ZengY.2017Enhanced photocatalytic properties of CdS -decorated BiPO4 heterogeneous semiconductor catalyst under UV-light irradiationJournal of Alloys and Compounds729189197Search in Google Scholar

Bekrani, M., Zohoori, S., Davodiroknabadi, A. (2019). Producing multifunctional cotton fabrics using nano CeO2 doped with nano TiO2 and ZnO. Autex Research Journal.BekraniM.ZohooriS.DavodiroknabadiA.2019Producing multifunctional cotton fabrics using nano CeO2 doped with nano TiO2 and ZnOAutex Research JournalSearch in Google Scholar

Derakhshan, S. J., Karimi, L., Zohoori, S., Davodiroknabadi, A., Lessani, L. (2018). Antibacterial and self-cleaning properties of cotton fabric treated with TiO2/Pt. Indian Journal of Fibre and Textile Research, 43, 344–351.DerakhshanS. J.KarimiL.ZohooriS.DavodiroknabadiA.LessaniL.2018Antibacterial and self-cleaning properties of cotton fabric treated with TiO2/PtIndian Journal of Fibre and Textile Research43344351Search in Google Scholar

Karimi, L., Zohoori, S. (2013). Superior photocatalytic degradation of azo dyes in aqueous solutions using TiO2/SrTiO3 nanocomposite. Journal of Nanostructure in Chemistry, 3(1), 32.KarimiL.ZohooriS.2013Superior photocatalytic degradation of azo dyes in aqueous solutions using TiO2/SrTiO3 nanocompositeJournal of Nanostructure in Chemistry3132Search in Google Scholar

Ayaziyazdi, S., Zohoori, S., Davodiroknabadi, A., Karimnejad, M. (2013). Electrospinning of polyamide fiber containing nano TiO2 and the effect of heat, setting on self-cleaning. Oriental Journal of Chemistry, 29, 427–431.AyaziyazdiS.ZohooriS.DavodiroknabadiA.KarimnejadM.2013Electrospinning of polyamide fiber containing nano TiO2 and the effect of heat, setting on self-cleaningOriental Journal of Chemistry29427431Search in Google Scholar

Goncalves, G., Marques, P. A., Pinto, R. J., Trindade, T., Neto, C. P. (2009). Surface modification of cellulosic fibres for multi-purpose TiO2 based nanocomposites. Composites Science and Technology, 69(7), 1051–1056.GoncalvesG.MarquesP. A.PintoR. J.TrindadeT.NetoC. P.2009Surface modification of cellulosic fibres for multi-purpose TiO2 based nanocompositesComposites Science and Technology69710511056Search in Google Scholar

Moafi, H. F., Shojaie, A. F., Zanjanchi, M. A., (2010). The comparison of photocatalytic activity of synthesized TiO2 and ZrO2 nanosize onto wool fibers. Applied Surface Science, 256(13), 4310–4316.MoafiH. F.ShojaieA. F.ZanjanchiM. A.2010The comparison of photocatalytic activity of synthesized TiO2 and ZrO2 nanosize onto wool fibersApplied Surface Science2561343104316Search in Google Scholar

Zohoori, S., Karimi, L., Nazari, A. (2014). Photocatalytic self-cleaning synergism optimization of cotton fabric using nano SrTiO3 and nano TiO2. Fibres and Textiles in Eastern Europe, 22, 91–95.ZohooriS.KarimiL.NazariA.2014Photocatalytic self-cleaning synergism optimization of cotton fabric using nano SrTiO3 and nano TiO2Fibres and Textiles in Eastern Europe229195Search in Google Scholar

Wang, C., Wang, Y., Zhang, L., Chen, D. (2017). Effect of GeO2 on the lasing performance of Yb: Phosphate glass fiber. Optical Materials, 64, 208–211.WangC.WangY.ZhangL.ChenD.2017Effect of GeO2 on the lasing performance of Yb: Phosphate glass fiberOptical Materials64208211Search in Google Scholar

Wang, X., Wang, L., Fu, X., Jing, C, Yue, F., et al. (2017). Thermal behaviors of stainless steel tube based GeO2 ATR hollow fibers for transmitting CO2 laser radiations. Optics & Laser Technology, 95, 42–45.WangX.WangL.FuX.JingCYueF.2017Thermal behaviors of stainless steel tube based GeO2 ATR hollow fibers for transmitting CO2 laser radiationsOptics & Laser Technology954245Search in Google Scholar

Zhong, N., Zhao, M., Zhong, L., Liao, Q., Zhu, X., et al. (2016). A high-sensitivity fiber-optic evanescent wave sensor with a three-layer structure composed of Canada balsam doped with GeO2. Biosensors and Bioelectronics, 85, 876–882.ZhongN.ZhaoM.ZhongL.LiaoQ.ZhuX.2016A high-sensitivity fiber-optic evanescent wave sensor with a three-layer structure composed of Canada balsam doped with GeO2Biosensors and Bioelectronics85876882Search in Google Scholar

Yang, Q., Sun, T., Yu, J. Y., Ma, J. X. (2016). Electrospinning of GeO2–C fibers and electrochemical application in lithium-ion batteries. Chinese Chemical Letters, 27(3), 412–416.YangQ.SunT.YuJ. Y.MaJ. X.2016Electrospinning of GeO2–C fibers and electrochemical application in lithium-ion batteriesChinese Chemical Letters273412416Search in Google Scholar

Wang, C.-C., Chen, C. C. (2005). Physical properties of crosslinked cellulose catalyzed with nano titanium dioxide. Journal of Applied Polymer Science, 97(6), 2450–2456.WangC.-C.ChenC. C.2005Physical properties of crosslinked cellulose catalyzed with nano titanium dioxideJournal of Applied Polymer Science97624502456Search in Google Scholar

Chokshi, S., Gohil, P., Patel, D. (2020). Experimental investigations of bamboo, cotton and viscose rayon fiber reinforced Unidirectional composites. Materials Today: Proceedings,28, 498–503.ChokshiS.GohilP.PatelD.2020Experimental investigations of bamboo, cotton and viscose rayon fiber reinforced Unidirectional compositesMaterials Today: Proceedings28498503Search in Google Scholar

Liu, F., Wang, S., Chen, S. (2020). Adsorption behavior of Au(III) and Pd(II) on persimmon tannin functionalized viscose fiber and the mechanism. International Journal of Biological Macromolecules, 152, 1242–1251.LiuF.WangS.ChenS.2020Adsorption behavior of Au(III) and Pd(II) on persimmon tannin functionalized viscose fiber and the mechanismInternational Journal of Biological Macromolecules15212421251Search in Google Scholar

Zhang, X., Xia, Y., Yan, X., Shi, M. (2018). Efficient suppression of flammability in flame retardant viscose fiber through incorporating with alginate fiber. Materials Letters, 215, 106–109.ZhangX.XiaY.YanX.ShiM.2018Efficient suppression of flammability in flame retardant viscose fiber through incorporating with alginate fiberMaterials Letters215106109Search in Google Scholar

Liu, F., Zhou, L., Tao, L., Qian, L., Yu, G. (2020). Adsorption behavior and mechanism of Au(III) on caffeic acid functionalized viscose staple fibers. Chemosphere, 253, 126704.LiuF.ZhouL.TaoL.QianL.YuG.2020Adsorption behavior and mechanism of Au(III) on caffeic acid functionalized viscose staple fibersChemosphere253126704Search in Google Scholar

Rehan, M., Khattab, T. A., Barohum, A., Gätjen, L., Wilken, R. (2018). Development of Ag/AgX (X = Cl, I) nanoparticles toward antimicrobial, UV-protected and self-cleanable viscose fibers. Carbohydrate Polymers, 197, 227–236.RehanM.KhattabT. A.BarohumA.GätjenL.WilkenR.2018Development of Ag/AgX (X = Cl, I) nanoparticles toward antimicrobial, UV-protected and self-cleanable viscose fibersCarbohydrate Polymers197227236Search in Google Scholar

Xia, G., Zhou, X., Hu, J., Sun, Z., Yao, J., et al. (2019). Simultaneous removal of carbon disulfide and hydrogen sulfide from viscose fibre waste gas with a biotrickling filter in pilot scale. Journal of Cleaner Production, 230, 21–28.XiaG.ZhouX.HuJ.SunZ.YaoJ.2019Simultaneous removal of carbon disulfide and hydrogen sulfide from viscose fibre waste gas with a biotrickling filter in pilot scaleJournal of Cleaner Production2302128Search in Google Scholar

Saleemi, S., Naveed, T., Riaz, T., Memon, H., Awan, J. A., et al. (2020). Surface functionalization of cotton and PC fabrics using SiO2 and ZnO nanoparticles for durable flame retardant properties. Coatings, 10(2), 124.SaleemiS.NaveedT.RiazT.MemonH.AwanJ. A.2020Surface functionalization of cotton and PC fabrics using SiO2 and ZnO nanoparticles for durable flame retardant propertiesCoatings102124Search in Google Scholar

Filho, F. d. C. G, da Luz, F. S., Oliveira, M. S., Pereira, A. C., Costa, U. O, et al. (2020). Thermal behavior of graphene oxide-coated piassava fiber and their epoxy composites. Journal of Materials Research and Technology, 9(3), 5343–5351.FilhoF. d. C. Gda LuzF. S.OliveiraM. S.PereiraA. C.CostaU. O2020Thermal behavior of graphene oxide-coated piassava fiber and their epoxy compositesJournal of Materials Research and Technology9353435351Search in Google Scholar

Gradys, A. (2017). Geometrical effects during crystallization under confinement in electrospun core-shell fibers. DSC study of crystallization kinetics. Polymer, 108, 383–394.GradysA.2017Geometrical effects during crystallization under confinement in electrospun core-shell fibersDSC study of crystallization kinetics. Polymer108383394Search in Google Scholar

Nawrocka, A., Szymańska-Chargot, M., Miś, A., Wilczewska, A. Z., Markiewica, K. H. (2017). Effect of dietary fibre polysaccharides on structure and thermal properties of gluten proteins – A study on gluten dough with application of FT-Raman spectroscopy, TGA and DSC. Food Hydrocolloids, 69, 410–421.NawrockaA.Szymańska-ChargotM.MiśA.WilczewskaA. Z.MarkiewicaK. H.2017Effect of dietary fibre polysaccharides on structure and thermal properties of gluten proteins – A study on gluten dough with application of FT-Raman spectroscopy, TGA and DSCFood Hydrocolloids69410421Search in Google Scholar

Revanth, J. S., Madhav, V. S., Sai, Y. K., Krishna, D. V., Srividya, K., et al. (2020). TGA and DSC analysis of vinyl ester reinforced by Vetiveria zizanioides, jute and glass fiber. Materials Today: Proceedings,26, 460–465.RevanthJ. S.MadhavV. S.SaiY. K.KrishnaD. V.SrividyaK.2020TGA and DSC analysis of vinyl ester reinforced by Vetiveria zizanioides, jute and glass fiberMaterials Today: Proceedings26460465Search in Google Scholar

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