Evaluation of bee wax propolis inhibitor for corrosion protection on stainless steel in various pH solution

Sanjay, M. R.; Wijaya, Hastono; Septiari, Renny; Andoko, Andoko

doi:10.1016/j.cscee.2022.100227

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…The plant wax is present as a component in the thin amorphous epicuticular layer [ 11 ], where it protects and provides self-cleaning properties [ 12 ]. In industrial use, the different properties of biowaxes mean they are potentially included in a range of products, such as the following: protective coatings, paints and inks (e.g., anti-blocking properties, anti-graffiti, gloss improvement, slip modification, hydrophobicity) [ 13 ]; protective edible coatings (e.g., barrier properties, anti-microbial, shelf-life) [ 14 , 15 ]; food packaging (e.g., barrier properties, light protection) [ 16 ]; composites (e.g., interface reinforcement) [ 17 ]; construction (e.g., phase change materials) [ 18 ]; energy conversion and management (e.g., thermal energy storage) [ 19 ]; metal protection (e.g., lubricity, corrosion protection) [ 20 ]; paper coating (e.g., barrier properties, heat sealability) [ 21 ]; textile finishes (e.g., gloss improvement, softness, water repellence) [ 22 ]; cosmetics (e.g., skin care) [ 23 ]; food (e.g., microencapsulation or food coating) [ 24 ]; wood products (e.g., hydrophobization, slip, abrasion resistance) [ 25 ]; or in the machining industry (e.g., bio-lubricant) [ 26 ]. For example, the hydrophobicity of paper and wood coatings with carnauba wax improved with water contact angles of over 140° [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Stabilization of an Aqueous Bio-Based Wax Nano-Emulsion through Encapsulation

Samyn

Rastogi

2022

Nanomaterials

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The emulsification of biowaxes in an aqueous environment is important to broaden their application range and make them suitable for incorporation in water-based systems. The study here presented proposes a method for emulsification of carnauba wax by an in-situ imidization reaction of ammonolysed styrene (maleic anhydride), resulting in the encapsulation of the wax into stabilized organic nanoparticles. A parameter study is presented on the influences of wax concentrations (30 to 80 wt.-%) and variation in reaction conditions (degree of imidization) on the stability and morphology of the nanoparticles. Similar studies are done for encapsulation and emulsification of paraffin wax as a reference material. An analytical analysis with Raman spectroscopy and infrared spectroscopy indicated different reactivity of the waxes towards encapsulation, with the bio-based carnauba wax showing better compatibility with the formation of imidized styrene (maleic anhydride) nanoparticles. The latter can be ascribed to the higher functionality of the carnauba wax inducing more interactions with the organic nanoparticle phase compared to paraffin wax. In parallel, the thermal and mechanical stability of nanoparticles with encapsulated carnauba wax is higher than paraffin wax, as studied by differential scanning calorimetry, thermogravimetric analysis and dynamic mechanical analysis. In conclusion, a stable aqueous emulsion with a maximum of 70 wt.-% encapsulated carnauba wax was obtained, being distributed as a droplet phase in 200 nm organic nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Stabilization of an Aqueous Bio-Based Wax Nano-Emulsion through Encapsulation

Samyn

Rastogi

2022

Nanomaterials

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“…11 a and b, it can be seen that both E corr and i corr CTA samples before and after eight months of use shifted to negative. This indicates that the CTA coating provided protection against tube corrosion [ 32 ] through termination of the anodic dissolution reduction reaction resulting in a decrease in i corr value [ 33 ]. After investigation, after eight months of use there was a significant increase in the value of the corrosion rate from 0.0088 mm/year to 49.31 mm/year for the WT sample due to the corrosive conditions of the tube in the power plant.…”

Section: Resultsmentioning

confidence: 99%