Foaming agents, analysis

The studies indicated that for all foaming agents the efficiency of oil recovery increased with the rise in foam quality. The authors explained this with the apparent viscosity of the foam. The analysis of other studies of the same authors showed that similar increase was observed in unconsolidated porous media with high porosity (0 > 0.35) and high permeability (K > 10 mm2). For consolidated pores with low porosity (0 < 0.25) and low permeability (K < 0.2 pm2) a decrease in oil recovery with the increase in foam quality occurred. 

SHS-GC can also be used for the determination of airborne emission profiles for new and reformulated products for the plastics, adhesives, and coatings in-dustfies as well as for studies related to fogging of semivolatiles and phthalates in the automotive industry. HS-GC was also used for the analysis of foaming agents in expanded polystyrene [977]. 

Chem. Analysis 0.60% max. ammonium chloride CAS 2235-54-3 EINECS/ELINCS 218-793-9 Uses Surfactant, foaming agent for pH-controlled shampoos, bubble baths Properties Cl. liq. very mild odor vise. 5000 cps max. pH 6.0-7.0 (10%) 27-30% act. 

Chem. Analysis 4.0-6.2 NaCI 0.30-2,5 free fatty acids CAS 12765-39-8 EINECS/ELINCS 235-802-1 Uses Surfactant, foaming agent for personal care prods, skin cleansers, liq. soaps, hand washes... 

Chem. Analysis 34% protein Uses Foaming agent... 

Ionic Nature Anionic Chem. Analysis 36.0-39.0% solids CAS 67815-88-7 EINECS/ELINCS 267-199-6 Uses Foaming agent used in liquid hand soaps and light duty liquids Properties Amber liq. mild odor easily sol. in hot water, methanol, and acetone sol. in cold water insol. in alcohol sp.gr. 1.09 b.p. 100 C flash pt. (PM-CC) 93 C pH 6.5-7.5 (10% aq.) surf, tension 32.6 dynes/cm (0.05% solids sol n.) Draves Wetting 90 s 0.5% solids solution Ross-Miles foam 150 mm initial, 135 mm at 5 min 33-36% act. 

Chem. Analysis 14% max. free fatty acid CAS 61789-32-0 EINECS/ELINCS 263-052-5 Uses Foaming agent for soap bars, bubble baths, shampoos Features High purity grade combines mildness and resistance to hard and salt water... 

Chem. Analysis 3.5% max. unsulfated alcohol 3.0% max. inorg. sails CAS 25446-804 64-17-5 EINECSCLINCS 246-986-8 200-5700 Uses Surfactant, foaming agent, vise, builder for personal care prods. 

The styrene content affects the crystallinity of ESI (131) for >50% styrene the copolymers are amorphous. As the styrene content is increased from 50 to 70% styrene the Tg increases from -15 °C to 20 °C. Low density foams were made (8) from a blend of 50% of various ESI polymers, 33% of EVA and 17% of azodicarbonamide blowing agent. Thermal analysis showed that the blends, with an ESI having approximately 70% styrene, had a Tg in the range 22 to 30 °C. Dynamic mechanical thermal analysis (DMTA) traces (see Section 5.1) show that these blends... 

The density of chemicaUy-blown LDPE foam was altered by varying the amount of blowing agent, degree of crosslinking of the polymer, and the foam expansion temperature. A theory was proposed for the equilibrium density, based on the gas pressures in a Kelvin foam structure, and a rubber-elastic analysis of the biaxial stretching of the cell faces. 20 refs. 

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