Search results for "Paraffin wax"

Development of S-C' type cleavage in Paraffin wax using a circular shear rig

2000

Effect of surfactants and drying rate on barrier properties of emulsified edible films

2007

Summary The effects of globule size, nature and concentration of surfactant, and drying duration of water vapour transmission rate and tensile strength of emulsified edible barriers containing methylcellulose and paraffin wax, were measured. of the six surfactants tested, 0.6% purified glycerol monostearate (GMS) produced films with the lowest water vapour transmission rates and the highest mechanical resistance. Longer drying times of film-forming emulsions produced better barrier and mechanical properties. Control of the film forming emulsion stability allowed the reduction of the water vapour transfer rate by an order of magnitude.

Adhesives and mounting media in aerobiological sampling

1989

Abstract Because microscopical identification and counting is vital in most aerobiological studies, pollen and spores are usually collected on some adhesive. The adhesives should not be water-soluble. For optically best results water-soluble mounting media with refractive indices about 1.40–1.45 are used. There are compatibility problems between water insoluble adhesives and watery mounting media. The former tend to move to stripes or droplets, distorting the image and moving the spores from their original positions. To solve this problem several adhesives based on silicone oils, silicone greases and vaseline or their mixtures were tested. The usual watery mounting media, glycerine gelatine…

Finely Tuned Temperature-Controlled Cargo Release Using Paraffin-Capped Mesoporous Silica Nanoparticles

2011

[EN] Trapped: Mesoporous silica nanoparticles were loaded with a fluorescent guest and functionalized with octadecyltrimethoxysilane. The alkyl chains interact with paraffins, which build a hydrophobic layer around the particle (see picture). Upon melting of the paraffin, the guest molecule is released, as demonstrated in cells for the guest doxorubicin. The release temperature can be tuned by choosing an appropriate paraffin. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.