Stick spread

Armix. [Witco/Oiganics] Wetting, sticking, spreading agent penetrant for i c. fomulations, high caustic industrial cleaners foaming r ent... 

Using the wooden craft stick, spread some of the mosaic tile adhesive on a section along the edge of your platter about 3 inches wide. 

Besides, it is necessary to be able to predict which regime occurs at droplet impact. Threshold criteria are then defined which establish the boundaries between the four basic outcomes (stick, spread, rebound and disintegration). Particular emphasis is given here to the transition from spread to disintegration, due to its relevance to model the secondary spray generated at spray impact (e.g., [17]). Most criteria make use of the Weber number (e.g., [18]). However, care must be taken to assure that viscous effects are negligible (e.g., [2]), otherwise the Weber number alone does not describe the phenomenon. Prompt splash is then predicted to occur when inertial forces overcome capillary effects, i.e., when ... 

Uses Penetrant, sticking/spreading agent for paraquat... 

Uses Surfactant, penetrant, sticking/spreading agent for glyphosate (Round-up) Properties Gardner 12 max. liq. sp.gr. 1.065-1.085 (30 C) pH 8.5-0.5 (1% aq.) Sinocol RP11 [Sino-Japan]... 

Uses Surfactant and wetting agent in agrochemicals penetrant, sticking/spreading agent for glyphosate (Round-up)... 

For fine powders that tend to bridge or stick and are of low bulk density, some form of forced feed, such as the tapered screw feeder shown in Figure 9, must be used to deaerate, precompact, and pressurize the feed into the nip. Large machines are available with up to five screw feeders to spread the flow across the roUs, and vacuum hoppers are also used to remove air when densifying low density feeds. 

A convenient orbital method for describing eleetron motion in moleeules is the method of molecular orbitals. Molecular orbitals are defined and calculated in the same way as atomic orbitals and they display similar wave-like properties. The main difference between molecular and atomic orbitals is that molecular orbitals are not confined to a single atom. The crests and troughs in an atomic orbital are confined to a region close to the atomic nucleus (typieally within 1-2 A). The electrons in a molecule, on the other hand, do not stick to a single atom, and are free to move all around the molecule. Consequendy, the crests and troughs in a molecular orbital are usually spread over several atoms. 

Surfactants have a hydrophilic side of the molecule that attaches to water, and a hydrophobic side of the molecule that avoids water. In the absence of oils, the hydrophobic side sticks out of the surface of the water drop. There is no longer any water at the surface to form a strong surface tension, so the water no longer beads up, but spreads. The hydrophobic end of the molecule is also free to attach to grease, fat, or oil on the surface, which aids in the spreading. 

In Chapter 4 we considered gases, in which intermolecular forces play only a minor role. Here, we deal with liquids and solids, in which the forces that hold molecules together are of crucial importance for determining the physical properties of bulk samples. Individual water molecules, for instance, are not wet, but bulk water is wet because water molecules are attracted to other substances and spread over their surfaces. Individual water molecules neither freeze nor boil, but bulk water does, because in the process of freezing molecules stick together and form a rigid array and in boiling they separate from one another and form a gas. 

To prepare thin, uniform smears, place a drop of saline on a glass slide (1 by 3 in. [ca. 2.5 by 7.5 cm]). With an applicator stick, transfer a small, representative portion of the specimen to the drop of saline, and mix the two. Spread the solution into a film by rolling the applicator stick along the surface. Remove any lumps. 

Spread the material over the center third of the slide by rolling the specimen with an applicator stick. Remove any lumps. The film should extend to both the top and bottom edges of the slide, as this helps prevent peeling. 

Pick a portion of material with an applicator stick, mix the material in a drop of saline, spread it on a glass slide (1 by 3 in.), and allow it to dry. 

Prepare the copper oxide-lead chromate as follows Spread a thin layer of coarse copper oxide over a small iron plate, heat from above with a blow pipe until the glow is as bright as possible and sprinkle with a thin layer of finely powdered lead chromate. The chromate melts at once and spreads over the copper oxide forming a firmly adherent layer and causing the strips of copper oxide to stick together a little. Now turn the cake over and treat the under side in the same way. When the mass has cooled break it up gently in a mortar and remove powder and unduly large pieces with a sieve. 

A small amt of the expl was spread on a large stone table and then struck a glancing blow with a mallet made either of rawhide or beech wood. The expl was thus subjected to the combined effect of shock and friction. If the sample exploded, the test was repeated by hitting the expl a glancing blow with a broomstick held at an angle of 60° against the table, taking care that the movement of the stick is in the direction of its axis. If an expin were obtd, the test was repeated on a hard wooden table and finally on a soft wooden one. If an expl, other than those used for caps, detonators, etc exploded, even partly on soft wood, it was considered to be too sensitive for use (Compare with Torpedo Friction Test, described as quantitative test i, Fi g F22)... 

Have you ever tried to pile sand It doesn t cooperate all that well. The grains of sand don t stick together unless they re wet. When sand is poured from a container, it tends to form a cone-shaped pile, spreading out farther than it is high. 

Obviously, one requirement for an adhesive is that it flow easily to cover a surface. This is a more complex business than it first appears. One might naively think that the governing feature is whether we are dealing with a thin or a thick liquid, but this is not the case. If we put a drop of oil in an iron skillet, it spreads, but on a Teflon surface it beads up. The explanation revolves around surface energies, which are a measure of the relative strengths with which atoms on the surface of a material are attracted to atoms inside the bulk of the material. In a sense, this determines how much attraction these surface atoms can spare for other substances. In the case of Teflon, very little. Teflon is composed of long chains of carbon atoms, with each carbon also joined to two fluorine atoms. The fluorines, which stick out from the carbon skeleton, represent the exposed part of the molecules, the part that could potentially interact with other molecules. Fluorine, once it has bonded to carbon, is notoriously unreactive, and it is not interested in forging other... 

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