Sökning: "cross-linker"
Visar resultat 1 - 5 av 6 uppsatser innehållade ordet cross-linker.
1. Polyvinyl alcohol (PVA) adhesives reinforced by microfibrillated cellulose (MFC) – adhesive properties and reinforcement mechanisms
Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikSammanfattning : 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. LÄS MER
2. Mapping the intrinsic viscosityof hyaluronic acid at high concentrations of OH-
Kandidat-uppsats, Uppsala universitet/Institutionen för teknikvetenskaperSammanfattning : 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. LÄS MER
3. Enhancing the durability of fluorocarbon-free Durable Water Repellant (DWR) formulation
Master-uppsats, KTH/Skolan för kemivetenskap (CHE)Sammanfattning : 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. LÄS MER
4. Polymerization of Zwitterionic Sulphobetaine Methacrylate and Modification of Contact Lens Substrate
Master-uppsats, KTH/Skolan för kemivetenskap (CHE)Sammanfattning : 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. LÄS MER
5. Robust Encapsulation of Yeast for Bioethanol Production
Master-uppsats, Högskolan i Borås/Institutionen IngenjörshögskolanSammanfattning : 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. LÄS MER