Essays about: "acetone"

Showing result 1 - 5 of 41 essays containing the word acetone.

  1. 1. Investigation of Milled Wood Lignin Extraction Using Enzymatic Hydrolysis for Application in Hydrophobic Barriers in the Food Packaging Industry

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Anna Wagne; [2023]
    Keywords : Lignin; extraction; hydrophobicity; chemical engineering; Technology and Engineering;

    Abstract : The objective of this report is twofold: to optimise the extraction method of lignin from spruce altering a few process parameters and to investigate the use of lignin as a hydrophobic barrier in food applications. The process used was STEX (steam explosion) pretreatment followed by enzymatic hydrolysis and MWL (milled wood lignin) extraction using a mixture of dioxane-water. READ MORE

  3. 2. A Study on Lignin or Zein Based Hydrophobic Coatings

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Filippa Wentz; Sandra Olofsson; [2023]
    Keywords : Lignin; Zein; Hydrophobic Coating; Dispersion; Chemical engineering; Technology and Engineering;

    Abstract : The two by-products lignin, from the paper industry, and zein, from starch production, have shown potential as hydrophobic barriers. Therefore, this study has aimed to produce and in-vestigate the hydrophobicity of lignin or zein dispersions coated on paper. READ MORE

  4. 3. A GREENER SOLUTION Investigating the potential use of Green Solvents to remove cellulose nitrate lacquer from silver objects

    University essay from Göteborgs universitet/Institutionen för kulturvård

    Author : Borén Evelina; [2022-07-05]
    Keywords : Sustainable Conservation; Green Solvents; Cellulose Nitrate; Lacquer; Coating; Silver;

    Abstract : This thesis investigates the performance of non-hazardous solvent substitutes, so called “Green Solvents", for the removal of aged and unaged cellulose nitrate lacquer from silver surfaces. Literature research and preliminary tests resulted in four solvents of interest: ethyl acetate, ethyl lactate, propylene carbonate and dimethyl carbonate. READ MORE

  5. 4. The Use of Gels for the Removal of Cellulose Nitrate Lacquer on Silver

    University essay from Göteborgs universitet/Institutionen för kulturvård

    Author : Miri Katayon; [2022-07-05]
    Keywords : agar gel; metal conservation; nanomaterials; silver coating; sustainable conservation; varnish removal;

    Abstract : The conservation of silver objects mainly constitutes addressing the issues of tarnish removal and of preventing tarnish. For decades lacquer has been used to coat silver objects in order to protect them from tarnishing. READ MORE

  6. 5. Potential of tall oil pitch as phase change material in lignin-shelled hybrid nanocapsules for thermal energy storage.

    University essay from Mittuniversitetet/Institutionen för kemiteknik

    Author : Helena Viberg Nissilä; [2022]
    Keywords : phase change materials PCM ; tall oil pitch TOP ; lignin; nanocapsules; hybrid material; thermal storage;

    Abstract : A prospect in utilizing thermal energy in development of energy systems is by the useof phase change materials (PCMs). PCMs are materials that can store and releaseenergy during phase changes, e.g. from solid to liquid. READ MORE