Antiwetting and low-surface-energy behavior of cardanol-based polybenzoxazine-coated cotton fabrics for oil–water separation

Prabunathan, P.; Elumalai, P.; Kumar, Gautam; Manoj, Manoranjan Kumar; Arumugam, Hariharan; Rathika, G.; Alagar, Muthukaruppan

doi:10.1007/s11998-020-00365-w

Cited by 18 publications

(11 citation statements)

References 44 publications

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“…On the other hand, after coating with poly(Cddm), the fabrics no distinct peaks for benzoxazines, which suggest that the ring-opening reactions of oxazine groups [15]. However, the peaks observed at 2917 cm -1 and 2844 cm -1 correspond to the asymmetric and symmetric stretching vibrations of a methylene group (-CH 2 -) respectively of long alkyl side chains of cardanol moiety [31].…”

Section: Morphology Of Poly(c-ddm) and Pani/ Poly(c-ddm)mentioning

confidence: 96%

“…In this context, bio-based benzoxazines have been synthesized from different bio-phenolic derivatives such as, cardanol, diphenolic acid, vanillin, and eugenol. Cardanol derived benzoxazine is one among the bio based polymer that substitutes an environmentally hazardous petroleum phenolic derivatives like bisphenol-A, bisphenol-F in recent day's [27][28][29][30][31]. Cardanol-benzoxazines was rst prepared Cao et al [32]followed by various groups have developed skeletally modi ed monomers [23,[33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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Low Temperature Curable Polyaniline/Bio-based polybenzoxazine Coated Cotton Fabric with Superior UV shielding and Oil-water Separation behaviours

Prabunathan¹,

Alagar²

2021

Preprint

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The present work detailsabout the low temperature curingbehaviour of bio-benzoxazine (C-ddm) prepared using cardanol and diaminodiphenylmethane (ddm)in the presence of polyaniline (PANI). Interestingly, it was found that the curing temperature (Tp) of the benzoxazine monomer (C-ddm) has significantly reduced to 227 ºC from 271 ºC with the incorporation of 2wt% of PANI. The plausible curing mechanism of benzoxazine ring catalysed by PANI was also discussed. Further, the resulted PANI/poly(C-ddm) matrices possessa marginally improvedvalues of glass transisition temperature and char yield. Further, PANI/poly(C-ddm) coated cotton fabric was studied for its UV shielding and surface properties. Furthermore, the UV shielding and surface behaviours of PANI/poly(C-ddm) coated cotton fabrics were explored. The PANI/poly(C-ddm) coated cotton fabric delivered UPF rating as high as 50 + and water contact angle value of162°. In addition, the PANI/poly(C-ddm) coated cotton fabric wasverified for its oil-water separation behavior. It was observed that the PANI/poly(C-ddm) coated cotton fabric offered97.5 % separation efficiency with enhanced flux value of about 6450 L/m2h flux.Thus, the obtained results suggest that the PANI/poly(C-ddm) can be used some of the industrial and environmental surface protection applications.

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Section: Morphology Of Poly(c-ddm) and Pani/ Poly(c-ddm)mentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Low Temperature Curable Polyaniline/Bio-based polybenzoxazine Coated Cotton Fabric with Superior UV shielding and Oil-water Separation behaviours

Prabunathan¹,

Alagar²

2021

Preprint

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“…121 Materials with high cardanol content exhibited better oil-water separation performance. 181,182 For example, Peng and coworkers invented a melamine sponges modified by cardanol-based benzoxazine, which showed ultrahigh oil/water separation efficiency (higher than 99.9%) and satisfactory permeation flux (1300 Lm À2 h À1 ). 182 Taking advantages of this nature, cardanol-containing benzoxazine resins were developed as surfactants 183 and superhydrophobic corrosion resistance coating.…”

Section: S C H E M E 1 7 Preparation Of Daidzein-based Benzoxazinementioning

confidence: 99%

“…After fabricating composite with commercial melamine sponge, the material could effectively separate oil and water 121 . Materials with high cardanol content exhibited better oil–water separation performance 181,182 . For example, Peng and coworkers invented a melamine sponges modified by cardanol‐based benzoxazine, which showed ultrahigh oil/water separation efficiency (higher than 99.9%) and satisfactory permeation flux (1300 Lm −2 h −1 ) 182 .…”

Section: Bio‐based Benzoxazine Resinmentioning

confidence: 99%

Recent development on bio‐based thermosetting resins

Liu

Zhang

Shun

et al. 2021

Journal of Polymer Science

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Due to the rapid depletion of crude oil and serious environmental pollution, the synthesis of polymers from renewable resource is becoming more and more important. Up to now, a great variety of biomass and bio-based platform compounds have been taken to prepare the polymers. However, as two representative thermosetting resins, epoxy and benzoxazine resin derived from renewable feedstocks only obtain limited attention compared with the popular bio-based plastics, including PLA, PBAT and PHBV etc. The reason might be that the properties of previously reported thermosetting resins directly obtained from biomass are usually unsatisfied, and their application fields are limited. In this paper, the latest development on the synthesis of highperformance bio-based epoxy and polybenzoxazine resins are reviewed. In addition, to further broaden their applications, the functionalization strategies are also summarized. The objective of this work is to help us fully aware the present situation of bio-based thermosetting resins and then promote their faster development, especially practical application.

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“…Notwithstanding, the exploitation and application of cost competitive cyanate ester coated cotton fabric with superhydrophobicity and low surface energy are not yet studied. Recently, our group has explored different type of low cost polybenzoxazine coated cotton fabrics for oil-water separation, anti-icing applications due to the inherent hydrophobicity and low surface free energy nature (Manickam et al 2019;Dinesh Kumar et al 2020;Prabunathan et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Fluorine free TiO2/cyanate ester coated cotton fabric with low surface free energy and rough surface for durable oil–water separation

et al. 2021

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Low cost superhydrophobic cotton fabric was developed using TiO 2 /cyanate ester coating for the first time. The TiO 2 /cyanate ester coated cotton fabric displayed superhydrophobic behaviour with water contact angle of 158°, sliding contact angle of 8°a nd surface free energy of 18.0 mN/m 2 . Besides, the TiO 2 /cyanate ester coated cotton fabric also possesses excellent laundry durability as well as stability against acid, alkali salt solutions and mechanical abrasion. Consequently, the TiO 2 /cyanate ester coated cotton also delivered superior oil-water separation efficiency with different types of oil/water mixtures that includes engine oil/water, waste engine oil/water, petrol/water and diesel/water. The TiO 2 /cyanate ester coated cotton fabric shows separation efficiency as high as 98% with flux value of 7200 L/m 2 h for petrol/water mixture. Further, both cyanate ester and TiO 2 /cyanate ester coated cotton fabric delivers ultra-high UV-resistant ability with Ultraviolet Protection Factor value as high as 500 ? . Hence, it is anticipated that the present approach of using cyanate ester can be widely explored further to construct multifunctional fabrics towards excellent self-cleaning as well as oil/water separation with UV and chemical robustness.

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Antiwetting and low-surface-energy behavior of cardanol-based polybenzoxazine-coated cotton fabrics for oil–water separation

Cited by 18 publications

References 44 publications

Low Temperature Curable Polyaniline/Bio-based polybenzoxazine Coated Cotton Fabric with Superior UV shielding and Oil-water Separation behaviours

Low Temperature Curable Polyaniline/Bio-based polybenzoxazine Coated Cotton Fabric with Superior UV shielding and Oil-water Separation behaviours

Recent development on bio‐based thermosetting resins

Fluorine free TiO2/cyanate ester coated cotton fabric with low surface free energy and rough surface for durable oil–water separation

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