Dip casting

Another type has several flat plates manifolded into a plastic header. The surface of the laminate is suitable for dip-casting membranes, whereas the interior is several orders of magnitude more porous. Permeate collects in the center of the laminate and drains into the header. 

The principal branches of the latex manufacturing industry are latex foam and dipped goods. See Dipping, Casting, Adhesives and Rubberised Hair. 

There is the dip casting process, also called dip coating or dip molding. It is a process of submerging a hot molded shape, usually metal, into a fluid plastic. After removal and cooling, the product around the mold is removed from the mold. 

Determine the friction-head loss in 2500 ft of clean 10-in new tar-dipped cast-iron pipe when 2000 gal/min (0.126 m3/s) of cold water is flowing. What is the friction-head loss 20 years later Use the Flazen-Williams and Manning formulas and compare the results. 

The PEC-1000 membrane of Toray Industries, Inc., has been described by Kurihara et al (21). This membrane was characterized as a thin-film composite type made by an acid catalyzed polymerization on the surface. Membrane performance reported for seawater tests was 99.9 percent TDS rejection at fluxes of 5.0 to 7.4 gfd (8.3 to 12.3 L/sq m/hr) when tested with 3.5 percent synthetic seawater at 800 psi (5516 kPascals). The membrane was stable in 1500-hour tests in spiral-wrap elements and exhibited stability in a temperature range of 25 to 55°C and in a pH range from 1 to 13. High organic rejections were reported for the PEC-1000 membrane rejection of dimethylformamide from a 10 percent solution was 95 percent and similar tests with dimethylsulfoxide showed 96 percent rejection. The composition and conditions for preparation of PEC-1000 membrane is not disclosed in Reference 21. Apparently it is a dip-cast membrane related to compositions described by Kurihara, Watanaba and Inoue in Reference 18. 

Hydrophobic surfaces were prepared by dip casting cleaned microscope slides with dimethyidichlorosilane (DOS). A similar protocol was used for DOS as for APS, except that the reaction mixture for DOS was 10% DCS (v/v) in dry toluene, and slides were rinsed with ethanol before rinsing with H2O in order to remove the toluene. The measured... 

Three important variations of the plastisol casting, are dip casting, slush casting, and rotational... 

FIGURE 2.43 Plastisol casting processes (a) dip casting (b) slush casting (c) rotational casting. 

Chem. Descrip. Emulsion PVC homopolymer CAS 9002-86-2 EINECS/ELINCS 208-750-2 Uses PVC for compact paste processing for coated fabrics, canvas coating, unsupported layers/films, dipping/casting, spray coating (e.g underbody coatings for automobiles)... 

Uses PVC for paste processing for solid applies., coated fabrics, floor coverings, canvas coaling, dipping/casting, kW plasticizer-conleni pastes, mat and transparent topcoats... 

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