Corn starch reactive blending with latex from natural rubber using Na+ ions augmented carboxymethyl cellulose as a crosslinking agent

Leksawasdi, Noppol; Chaiyaso, Thanongsak; Rachtanapun, Pornchai; Thanakkasaranee, Sarinthip; Jantrawut, Pensak; Ruksiriwanich, Warintorn; Seesuriyachan, Phisit; Phimolsiripol, Yuthana; Techapun, Charin; Sommano, Sarana Rose; Ougizawa, Toshiaki; Jantanasakulwong, Kittisak

doi:10.1038/s41598-021-98807-x

Cited by 12 publications

(12 citation statements)

References 65 publications

(63 reference statements)

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“…[59,60] Hereby, we compared and discussed our approach to fabricate tough bio-latex films with other existing approaches in the literature (Figure 7b). The stress-strain at break reported here exceeds those reported for natural rubber (NR) and other novel bio-latexes reinforced with starch, [29,61,62] cellulose nanocrystals (CNC), [63,64] and biobased vanillin-eugenol-acrylate (VEA). [59] Most commonly, in order to obtain toughness, external surface-crosslinking rather than internal crosslinking is in need to govern the interdiffusion of polymer chain and the full coalescence of colloids as well as the strength of individual colloids.…”

Section: Mechanical Characteristics Of A-lnp-pbm Latex Filmscontrasting

confidence: 66%

Template‐Directed Polymerization of Binary Acrylate Monomers on Surface‐Activated Lignin Nanoparticles in Toughening of Bio‐Latex Films

Wang

Rosqvist

et al. 2023

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advanced functional templates, such as porous supraparticles and complex crystal superstructures, due to their facile surface functionalization and tunable colloidal assembly. [1][2][3][4][5][6] Films fabricated from latex colloids with a unique core-shell morphology is a novel class of nanoparticlepolymer composites that synergistically integrate the versatility of nanoparticles (core) with the processability and diversity of the corona polymers (shell). [5,7] Two techniques, that is, seeded free-radical emulsion polymerization and controlled radical emulsion polymerization of amphiphilic block copolymers (commonly a macro chain-transfer agent), have proven effective in devising multifunctional coreshell latex colloids. [7][8][9] In the above-mentioned techniques, the seed of the latex colloid or the hydrophobic core that is derived from the polymerization-induced self-assembly in aqueous dispersion functions as an interfacial modulator to direct hydrophobic polymer growth on the core surface or in the core, respectively. [10,11] Compared with controlled radical emulsion polymerization, seeded emulsion polymerization offers more possibilities to vary the constituents of the core (e.g., polyesters, polyolefins, polyvinyl acetate, acrylics, polysaccharides, silica) and distinct shell geometries, such as raspberry-and dumbbell-like features, Fabricating bio-latex colloids with core-shell nanostructure is an effective method for obtaining films with enhanced mechanical characteristics. Nanosized lignin is rising as a class of sustainable nanomaterials that can be incorporated into latex colloids. Fundamental knowledge of the correlation between surface chemistry of lignin nanoparticles (LNPs) and integration efficiency in latex colloids and from it thermally processed latex films are scarce. Here, an approach to integrate self-assembled nanospheres of allylated lignin as the surface-activated cores in a seeded free-radical emulsion copolymerization of butyl acrylate and methyl methacrylate is proposed. The interfacial-modulating function on allylated LNPs regulates the emulsion polymerization and it successfully produces a multi-energy dissipative latex film structure containing a lignin-dominated core (16% dry weight basis). At an optimized allyl-terminated surface functionality of 1.04 mmol g −1 , the LNPs-integrated latex film exhibits extremely high toughness value above 57.7 MJ m −3 . With multiple morphological and microstructural characterizations, the well-ordered packing of latex colloids under the nanoconfinement of LNPs in the latex films is revealed. It is concluded that the surface chemistry metrics of colloidal cores in terms of the abundance of polymerization-modulating anchors and their accessibility have a delicate control over the structural evolution of core-shell latex colloids.

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Section: Mechanical Characteristics Of A-lnp-pbm Latex Filmscontrasting

confidence: 66%

Template‐Directed Polymerization of Binary Acrylate Monomers on Surface‐Activated Lignin Nanoparticles in Toughening of Bio‐Latex Films

Wang

Rosqvist

et al. 2023

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“…The coating biomaterials used in the egg-production industry may be lipid-, protein-, or polysaccharide-based. Biomaterials with properties amenable to egg-coating include starch [4][5][6], carboxymethyl cellulose (CMC) [7][8][9], carboxymethyl chitosan [10], carboxymethyl bacterial cellulose [11], sericin [12,13], keratin [14], fibroin [15], and pectin [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Effect of Egg-Coating Material Properties by Blending Cassava Starch with Methyl Celluloses and Waxes on Egg Quality

et al. 2021

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An egg-coating material was developed to extend the shelf-life and freshness of eggs by blending cassava starch (CS) with gelling agents and waxes. The effects of the properties of this egg coating on egg quality were investigated. Hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC), beeswax, and paraffin wax were used. CS blended with low-molecular-weight paraffin (Paraffin(L)) and CMC coating material displayed a tensile strength of 4 MPa, 34% elongation at break, 0.0039 g day−1 m−2 water vapor permeability, and a water contact angle of 89° at 3 min. Eggs coated with CS/CMC/Paraffin(L) solutions had a Haugh unit value of 72 (AA grade) and exhibited a weight loss of 2.4% in 4 weeks. CMC improved the compatibility of CS and Paraffin(L). This improvement and the hydrophobicity of Paraffin(L) provided suitable mechanical and water-resistance properties to the coating material that helped to maintain the quality of the coated AA-grade eggs with low weight loss for 4 weeks.

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“…It is attributed to the H–O–H stretching vibration of the adsorbed water owing to the strong interaction between adsorbed water and the hydrophilic surface O–H group of cellulose because of the hydroxyl groups in cellulose [ 55 , 56 ]. The spectra at 1428, 1370, 1167, and 1056 cm −1 represent the C–H deformation (methoxyl group in lignin), C–H deformation (symmetric), C–O stretching of ester groups, and C–OH stretching vibration in cellulose, respectively [ 28 , 57 , 58 , 59 ]. The band at 895 cm −1 represents the C–H deformation in cellulose [ 60 ].…”

Section: Resultsmentioning

confidence: 99%

Surface Modification and Mechanical Properties Improvement of Bamboo Fibers Using Dielectric Barrier Discharge Plasma Treatment

et al. 2023

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The effect of argon (Ar) and oxygen (O2) gases as well as the treatment times on the properties of modified bamboo fibers using dielectric barrier discharge (DBD) plasma at generated power of 180 W were investigated. The plasma treatment of bamboo fibers with inert gases leads to the generation of ions and radicals on the fiber surface. Fourier transform-infrared spectroscopy (FTIR) confirmed that the functional groups of lignin and hemicellulose were reduced owing to the removal of the amorphous portion of the fibers by plasma etching. X-ray diffraction analysis (XRD) results in an increased crystallinity percentage. X-ray photoelectron spectroscopy (XPS) results showed the oxygen/carbon (O/C) atomic concentration ratio increased with increasing treatment time. The fiber weight loss percentage increased with increased treatment time. Scanning electron microscopy (SEM) images showed that partial etching of the fiber surface led to a higher surface roughness and area and that the Ar + O2 gas plasma treatment provided more surface etching than the Ar gas treatment because of the oxidation reaction of the O2 plasma. The mechanical properties of fiber-reinforced epoxy (FRE) matrix composites revealed that the F(tr)RE-Ar (30) samples showed a high tensile strength, whereas the mechanical properties of the F(tr)RE-Ar + O2 sample decreased with increased treatment time.

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Corn starch reactive blending with latex from natural rubber using Na+ ions augmented carboxymethyl cellulose as a crosslinking agent

Cited by 12 publications

References 65 publications

Template‐Directed Polymerization of Binary Acrylate Monomers on Surface‐Activated Lignin Nanoparticles in Toughening of Bio‐Latex Films

Template‐Directed Polymerization of Binary Acrylate Monomers on Surface‐Activated Lignin Nanoparticles in Toughening of Bio‐Latex Films

Effect of Egg-Coating Material Properties by Blending Cassava Starch with Methyl Celluloses and Waxes on Egg Quality

Surface Modification and Mechanical Properties Improvement of Bamboo Fibers Using Dielectric Barrier Discharge Plasma Treatment

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