Sökning: "polyamide"

Visar resultat 16 - 20 av 41 avhandlingar innehållade ordet polyamide.

1. 16. Enzyme Printed Fabrics : Bio‐functionalisation of Synthetic Textiles by Digital Inkjet Printing

   Författare :Tuser Biswas; Vincent Nierstrasz; Junchun Yu; Tzanko Tzanov; Högskolan i Borås; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Digital printing; inkjet; enzyme; printhead; rheology; immobilisation; piezoelectric; drop-on-demand; resource-efficient textiles; biological ink; lysozyme; tyrosinase; polyphenol oxidase; polyethylene terephthalate; polyester; polyamide-6; 6; nylon; surface modification; plasma; antimicrobial; antibacterial; Textil och mode generell ; Textiles and Fashion General ;

   Sammanfattning : This thesis explores the possibilities of printing enzymes using resource-efficient technologies to promote the binding of other proteins and biomaterials on synthetic textiles. This strategy can be used to develop advanced textiles for applications, for example, in antimicrobial, drug delivery and biosensing. LÄS MER

3. 17. Improved high velocity cold copaction processing : polymer powder to high performance parts

   Författare :Bruska Azhdar; Sture Persson; Cornell Nicolescu; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; high-velocity compaction; powder polymers; polyamide-11; relaxation assist; compactibility; relative green density; morphology; pull-out; springback; Polymer chemistry; Polymerkemi;

   Sammanfattning : A uniaxial High-Velocity Compaction (HVC) process for polymer powder using a cylindrical, hardened steel die and a new technique with relaxation assist was tested with a focus on the compactibility characteristics and surface morphology of the compacted materials using various heights of relaxation assist device with different compacting profiles. Relaxation assist device was presented as a new technique to reduce springback, pull-out phenomenon and to improve the compaction process. LÄS MER

4. 18. Imaging chemiluminescence applied to oxidation of rubber materials and polyamide

   Författare :Gustav Ahlblad; KTH; []
   Nyckelord :;

   Sammanfattning : In this thesis the heterogeneous nature of thermal oxidationof polymer materials have been investigated by imagingchemiluminescence (KL). The issues of oxidation depth profilesand physical spreading of oxidation in rubbers materials andpolyamide have been addressed. LÄS MER

5. 19. Studies of Dielectric Relaxation in Solid Polymers and Composites

   Författare :Mohsen Safari Ardi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dielectric permittivity; time-domain dielectric relaxation; composite; carbon black; poly vinylidene fluoride ; interfacial polarization; poly vinyl chloride ; coated carbon fibre; epoxy; poly methyl methacrylate ; nitrile butadiene rubber; ethylene-vinyl acetate copolymer; polyamide 6;

   Sammanfattning : Non-linear characteristics of homogeneous solid polymers and solid polymer-based composites have been studied both experimentally and theoretically. In particular experimental studies of non-linear dielectric response of six homogeneous solid polymeric materials and the influence of the composition on the properties of solid polymer-based composites with high dielectric permittivities have been carried out and a theoretical study of dipole-dipole interaction in solids based on a formulation due to P. LÄS MER

7. 20. Oxidation of stressed polymers as studied by chemiluminescence

   Författare :Karin Jacobson; KTH; []
   Nyckelord :;

   Sammanfattning : Since the use of chemiluminescence (CL) is known to be avery sensitive technique for studying oxidation of polymers,its potential as a tool for studying the oxidation of stressedpolymers is thoroughly investigated in this thesis. A number ofearlier reports on stress induced chemiluminescence (SCL) showthat SCL has potential for elucidating polymer stressreactions. LÄS MER