Essays about: "cross-linker"

Showing result 1 - 5 of 6 essays containing the word cross-linker.

  1. 1. Polyvinyl alcohol (PVA) adhesives reinforced by microfibrillated cellulose (MFC) – adhesive properties and reinforcement mechanisms

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Daniela Wloch; [2019]
    Keywords : PVA adhesive; boric acid; MFC; cross-linkers; aluminum sulfate; initial wet tack;

    Abstract : The aim of the project was to investigate a green and sustainable replacement for boric acid in polyvinyl alcohol (PVA) adhesives for solid paperboard production. Boric acid acts as a cross-linker and tackifier in the adhesive but is classified as a harmful substance. READ MORE

  3. 2. Mapping the intrinsic viscosityof hyaluronic acid at high concentrations of OH-

    University essay from Uppsala universitet/Institutionen för teknikvetenskaper

    Author : Victor Spelling; Mathias Axelsson; Lovisa Ringström; Johanna Munck af Rosenschöld; Anton Lindblad; [2017]
    Keywords : Alkaline solution; Degradation; Extrapolation; Hyaluronic acid; Intrinsic viscocity; Macromolecules; Polymer; Regression; Sodium hydroxide; Ubbelohde capillary viscometry;

    Abstract : Hyaluronic acid is commonly used in dermatological fillers in the form of gels. It is established how these gels' firmness is affected by the amount of cross linker and hyaluronic acid respectively. However, the effect of hydroxide ions in solution is rather unknown. READ MORE

  4. 3. Enhancing the durability of fluorocarbon-free Durable Water Repellant (DWR) formulation

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Meron Solomon; [2017]
    Keywords : Hydrophobicity; textile coating; cross-linker; nanoparticles; surface roughness;

    Abstract : The focus of the project was to alter and optimize the water repellant textile coating formulations to reach enhanced durability. For this purpose, the project was approached with three methods. Firstly, bio-based components were implemented in the mother emulsion to act as surfactant and crosslinking agent and to provide hydrophobic properties. READ MORE

  5. 4. Polymerization of Zwitterionic Sulphobetaine Methacrylate and Modification of Contact Lens Substrate

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Tobias Ingverud; [2015]
    Keywords : Zwitterionic; Sulphobetaine; RAFT; ATRP; End-group-modification; Grafting-to; Contact lens; zwitterjonisk; RAFT; ATRP; ändgrupps modifiering; ympning-till; kontakt;

    Abstract : In this study, the zwitterionic monomer [2-(methacryloyloxy)ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide (SBMA) was polymerized in a controlled manner by reversible addition-fragmentation chain transfer (RAFT) polymerization. The SBMA was also polymerized by atom transfer radical polymerization (ATRP) but in a less controlled manner why ATRP was discarded for further use in the study. READ MORE

  6. 5. Robust Encapsulation of Yeast for Bioethanol Production

    University essay from Högskolan i Borås/Institutionen Ingenjörshögskolan

    Author : Sainath Namthabad; Ramesh Chinta; [2014]
    Keywords : Microencapsulation; Cell immobilization; Entrapment; Biomineralization; Genipin; Bioethanol; Lignocellulosic hydrolyzates;

    Abstract : In the future the demand for ethanol is expected to increase greatly due to the rising energy requirements in the world. Lignocellulosic materials are a suitable and potentially cheap feedstock for sustainable production of fuel ethanol, since vast quantities of agricultural and forest residues are available in many countries. READ MORE