Explosive films

Chem. Descrip. Synthetic wax CAS 8002-74-2 EINECS/ELINCS 232-315-6 Uses Lubricant candles chewing gum dental wax explosives film pkg. firearms floor polish furniture polish hot-melt adhesives matches paints paper rubber food and food-contact applies. 

Chem. Descrip. Triethyl citrate FCC, USP/NF, EP CAS 77-93-0 EINECS/ELINCS 201-070-7 Uses Plasticizer for cellulose derive., explosives, film coafed fablefs (pharmaceutical) plasticizer, humectant tor cigarette filters solv. for nat. resins solv., diluent, fixative in perfumery carrier for fragrances mfg, of lacquers deodorant act. cosmetics antitackifier in low volatile hair sprays food additive and solv. (carrier for flavors, whipping aid in dried egg white) plasticizer for plastic materials in contact with foodstuffs mfg. of specialty inks for food pkg. 

Additional equipment in mold machines is offered on the market and create new processing options such as erosive turning or shaping of structures with the help of explosive films. Therefore, new possibilities of designing the mold are offered in the field of microsystems technology. An additional subject for the accuracy to be concerned about is the machine itself and the clamping system for the work piece. In both cases, there are different systems and levels of accuracy. 

The de Chardonnet (nitrocellulose) process was reported in 1884 to prepare cellulose nitrate cellulose nitrate prepared by this process continues to be an important commerical inorganic esier of cellulose. Originally, nitrocellulose was extruded to yield one of the first regenerated textile fibers. Principal uses of cellulose nitrate are in the manufacture of explosives, films, cements, lacquers and plastics. ... 

This chapter concludes our discussion of applications of surface chemistry with the possible exception of some of the materials on heterogeneous catalysis in Chapter XVIII. The subjects touched on here are a continuation of Chapter IV on surface films on liquid substrates. There has been an explosion of research in this subject area, and, again, we are limited to providing just an overview of the more fundamental topics. 

Metals having tenacious surface films that make roU bonding difficult, eg, stainless steel/Cr—Mo steels, can be explosion clad. 

The clad plate is x-rayed perpendicular from the steel side and the film contacts the aluminum. Radiography reveals the wavy interface of explosion-welded, aluminum-clad steel as uniformly spaced, light and dark lines with a frequency of one to three lines per centimeter. The waves characterize a strong and ductile transition joint and represent the acceptable condition. The clad is interpreted to be nonbonded when the x-ray shows complete loss of the wavy interface (see X-ray technology). 

Theatrical Pyrotechnics or Special Effects. Many spectacular visual and audible effects are produced for stage presentations of both music and drama, and many motion pictures and television shows incorporate pyrotechnic and explosive special effects to Hven up the presentation. These spectacular effects are a combination of pyrotechnics, explosives, combustion, and electronics. After the effects are filmed or videotaped, they are often enhanced by slow-motion replay and by the addition of more exciting noise. A real explosion is over in milliseconds, and hence there is a need for electronic enhancement to create a more spectacular effect on the screen. 

The principal chemical iadustry based on wood is pulp and paper. In 1995, 114.5 x 10 metric tons of wood were converted iato - 60 x 10 metric tons of fiber products ranging from newsptint to pure cellulose ia the United States (1,76). Pure cellulose is the raw material for a number of products, eg, rayon, cellulose acetate film base, cellulose nitrate explosives, cellophane, celluloid, carboxymethylceUulose, and chemically modified ceUulosic material. 

Many polymer films, eg, polyethylene and polyacrylonitrile, are permeable to carbon tetrachloride vapor (1). Carbon tetrachloride vapor affects the explosion limits of several gaseous mixtures, eg, air-hydrogen and air-methane. The extinctive effect that carbon tetrachloride has on a flame, mainly because of its cooling action, is derived from its high thermal capacity (2). 

Cavitation Formation of transient voids or vacuum bubbles in a liquid stream passing over a surface is called cavitation. This is often encountered arouna propellers, rudders, and struts and in pumps. When these bubbles collapse on a metal surface, there is a severe impact or explosive effec t that can cause considerable mechanical damage, and corrosion can be greatly accelerated because of the destruction of protective films. Redesign or a more resistant metal is generally required to avoid this problem. 

To prevent glass fragments from flying in the event of an explosion, use should be made of metal gauzes to screen reaction flasks etc., or cages, e.g. for desiccators. Vessels of awkward size/shape may be covered with cling film. 

A physical model of ONB for the explosive boiling and dryout, was suggested. In order to understand why dryout occurred even at a low value of vapor quality x, it is important to keep in mind that the liquid film does not cover the entire heated surface of the micro-channel, and two-phase flow is characterized by an unsteady cyclic behavior. The following assumptions are made in the development of the model ... 

---