Water Soluble Glass Fibers

In common silicate glasses silicon dioxide is used. If instead of silicon dioxide, phosphorous pentoxide is used, a kind of phosphate glass is obtained. Some phosphate glasses are water soluble, as well as biocompatible and can be used in biodegradable tissue formulations. 

A biodegradable composite material for tissue repair has been described, formulated from water soluble glass fibers impregnated with a biodegradable polymer, PCL (65). Such a biodegradable composite is particularly useful for the repair of nerve or bone tissue, especially the bones of the skull. 

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The addition of an a-hydroxycarboxyhc acid to a tetraethylene, propylene, diethjiene, or hexylene glycol titanate gives water-soluble complexes suitable for gelling aqueous solutions of hydroxyl polymers, such as poly(vinyl alcohol) (PVA), or cellulose (qv) derivatives. These are useful as binding agents for glass fibers, clays (qv), and paper coatings (85). 

Physical and chemical measurements were made weekly at a central station in each side of the lake. Water samples were filtered through Whatman GF/C or Gelman A/E glass-fiber filters (1.0- xm pore size). N03 was measured by reduction to N02" in a cadmium column and formation of a pink azo dye, NH4+ was measured by using a phenol-hypochlorite method, and soluble reactive phosphate was measured by a molybdenum blue method. After 1990 nutrients were measured by using similar methods on a Technicon Auto Analyzer (83). 

Is an oil in water emulsifier for petroleum oils, fats, waxes and alkyl esters. It is an excellent lubricant for metals, textiles, and leather, and is used as an emulsifier/ lubricant in soluble oils for metal processing and finishing. EMSORB 6903 also serves as a lubricant and highly efficient emulsifier for oils used in textile processing and finishing, glass fiber lubricants, and automotive lubricant additives. HLB 11.1... 

In the laboratory, aerosol samples were individually cut from the filter-tape roll and extracted on a 47-mm filter holder (Millipore) with 200 mL of distilled deionized water maintained at 50-60 °C. The leachates were analyzed for sodium content by flame atomic absorption with a Perkin-Elmer Model 373 spectrophotometer. The soluble sodium was assumed to be derived only from sea salt. Estimates of total sea salt in each sample were obtained by multiplying the sodium value by 3.25, which is the salinity-to-sodium ratio in bulk seawater (12). The sodium content of the 5-cm diameter, glass-fiber filter blanks averaged 18 /xg 12% (20 samples). Based on an average sample volume of 27 m, the background salt level produced by the sodium blank in each filter would be equivalent to 2.2 /xg/m. ... 

Plyophen [Reichhold], TM for a water-soluble impregnating resin. Penetrates deeply and quickly into wood, canvas, asbestos, paper, and other laminating and molding stocks. Can be diluted as much as 8-10 parts water to 1 part resin for spraying glass fiber or rock wool. 

For measurement of soluble pectins, 20 mg ethanol-insoluble powder were placed in 7 ml of either distilled water or Na-acetate buffer (40 mM, pH 5.0) containing 20 mM EDTA and incubated with shaking at room temperature for 6 hr. Aliquots (0.5 ml) were filtered through glass fiber filters and analyzed for soluble pectins. 

Poly( vinyl alcohol) is a versatile polymer with many industrial applications, and it may be the only polymer with an all carbon-carbon bond backbone that is truly biodegradable. The monomer is vinyl acetate, which is readily polymerized with free radical initiators to form poly(vinyl acetate), and the latter can be hydrolyzed either partially to prepare vinyl alcohol-vinyl acetate copolymers, or fully to prepare poly(vinyl alcohol). At high vinyl alcohol contents, the copolymers, and the vinyl alcohol homopolymer, are water soluble, and the aqueous solutions of these polymers find many applications for example, as adhesives or for coatings. The homopolymer and the very high vinyl alcohol copolymers are crystalline with melt transitions between 180 and 230 °C and glass transitions between 58 and 85 °C, depending on the vinyl alcohol content. The polymers can be melt processed to form molded plastics, fibers and films [36]. 

Aminopropyl)silanetriol EINECS 261-145-5 Silane-triol, (3-aminopropyl)-. Aminoalkyl silicone solution finish for woven fiberglass coupling agent for glass fiber sizes filter lieatments additive to water-soluble/dispersion resins include vinyl and acrylic... 

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