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Moisture composites, effects

C. E. Browning, G. E. Husman, and J. M. Whitney, Moisture Effects In Epoxy Matrix ComposHos, in Composite Materials Testing and Design (Fourth Conference), J. [Pg.275]

Earth resistance depends on the type of soil, its mineral composition, moisture content, and temperature. Table 5.2 provides the resistivity of various types of soils Table 5.3, the effect of moisture on soil resistivity and Table 5.4, the effect of temperature on soil resistivity. The information contained in the tables is used to illustrate the effect of various natural factors on soil resistivity. Table 5.5 shows the changes in earth resistance by using multiple ground rods. Note that, to realize the full benefits of multiple rods, the rods should be spaced an adequate distance apart. [Pg.125]

Plant productivity is determined by factors such as plant species composition, moisture, soil fertility, growing season length, and solar radiation—many of which are affected by human activities. All else equal, increases in primary productivity and production of plant tissues will lead to increases in soil C stock, while decreases will lead to decreases in soil C stock. The rate of change in soil C stock is determined by the difference between C inputs and outputs, as well as the turnover times of the soil C, which are often not known. Here we review briefly how some environmental factors are expected to alter productivity and explore how the effects on stock depend on the number of soil carbon pools and their turnover times. [Pg.246]

Bangudu, A.B. Pilpel, N. Effects of composition, moisture and stearic acid on the plasto-elasticity and tableting of paracetamol-microcrystalline cellulose mixtures. J. Pharm. Pharmacol. 1985, 37, 289-293. [Pg.44]

Orientation of fiber is detrimental to performance of composites which contain carbon fibers (Figures 11.16 and 11.17). T ensile strength of composites containing fibers oriented in a direction parallel to the surface is not affected by moisture content. Composites which have fibers oriented in a direction perpendicular to the surface, lose tensile strength as moisture increases (exception — carbon fiber/PEEK composite). Similar effects on tensile modulus, compression modulus and elongation have been observed. [Pg.514]

Highly safe transparent or semitransparent jelly-like composition good moisturizing effect... [Pg.392]

The soil acidity results from mutual effects of several factors, particularly the soil composition, moisture and biological activity. The soil reaction... [Pg.652]

Destruction of macromolecules as a result of chemical interactions with the environment leads to the fracture of polymer materials with the formation of active components. Participation of individual macromolecules in destruction processes is dependent upon the amount of the constituent reactive groups. Introduction of substituents of different compositions into the polymer chain changes their stability in thermal oxidation reactions and in response to chemical reagents and moisture effects. [Pg.17]

Grunenfelder LK, Nutt SR. Void formation in composite prepregs — effect of dissolved moisture. Compos Sci Technol 2010 70 2304-9. [Pg.113]

The first part of this chapter is a brief presentation of the interactions encountered by an ion that is moving through a neutral gas under the influence of a weak electric field. This simplified treatment pertains mainly to the classic form of linear ion mobility spectrometers (IMSs) and aspiration IMS devices. The motion of ions in other ion mobility devices, like the differential mobility spectrometer (DMS) and traveling wave (TW) IMS is also discussed. In the second part of the chapter, the implications on ion behavior in these embodiments of IMSs are discussed. The effects of the experimental parameters temperature, drift gas composition, moisture level of the supporting atmosphere, and concentration of the analytes are described in Chapter 11. [Pg.215]

To formulate a successful composite material, and in particnlar to ensnre that there is adequate stress transfer from matrix to filler phase, a conpling agent is deployed at the matrix-filler interface. The type of silane nsed for conventional dental composite resins effectively forms a mono-molecnlar hydrophobic layer on the snrface of the inorganic filler particles. In silanating the reactive ionomer glass in this way, the chemical reactivity of the glass is affected. It is no longer quite so hydrophilic, and hence is less susceptible to acid attack in the presence of moisture. [Pg.73]

Hertz, J., Moisture Effects on the High Temperature Strength of Fiber-Reinforced Resin Composites, 4th National SAHPE Conference, Palo Alto, Calif. Oct. 1972. [Pg.111]

Blankenhom, P.R. et al (1999) Temperature and moisture effects on selected properties of wood fiber-cement composites. Cement and Concrete Research 29,737-741. [Pg.343]

Aquino EMF, Sannenlo IPS (2007) Moisture effect on degradation of jute/glass hybrid composites. J Reinforc Plast Compos 26 219—233... [Pg.720]

Aquino, E. M. R, Sarmento, L. P. S., and Oliveira, W. (2007). Moisture Effect on Degradation of Jute/Glass Hybrid Composites. Journal of Reinforced Plastics and Composite 26(2), 219-233. [Pg.371]

Reid JD, Lawrence WH, Buck RP. Dielectric properties of an epoxy resin and its composite 1. Moisture effects on dipole relaxation. J Appl Polym Sci 1986 30 1771. [Pg.418]

F. E. L. Tobing, M. S. Shephard, and S. S. Stemstein, Finite element analysis of moisture effects in graphite-epoxy composites, Comput. Struct. 16, 457-469 (1983). [Pg.393]

Cationics such as quaternary ammonium compounds play an important role and offer specialized benefits for certain cosmetic, skin care, and sun care formulations. The emollients, humectants, and cationic emulsifiers used in skin care products provide smoothness, moisturizing effects, increased elasticity, less irritation, and improved appearance [152-154]. Skin care compositions containing these agents are claimed to provide a high degree of moisturization to the skin [155]. [Pg.372]

The use of esterquats in cosmetic compositions has gained interest since it is believed that esterquats can form vesicles that can incorporate emollient material, such as oils. These emollient materials are needed for the skin in order to retard the loss of moisture, and they also have a protective function. Cosmetic compositions containing various esterquats and amide esterquats that can form vesicles are claimed to provide a good moisturizing effect with... [Pg.372]

Browning CE, Husman GE, Whitney JM (1976) Moisture effects in epoxy matrix composites. [Pg.139]


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See also in sourсe #XX -- [ Pg.40 , Pg.435 ]




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