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Learn About Other Dow Products for Personal Care and Cleaning Products Cleaners — CELLOSIZE™ HEC finds utility in many household products as a thickener, stabilizer, and binder. For example, in liquid detergents and cleaners, it acts as a rheology modifier and as an efficient thickener, imparting good body structure, a pseudoplastic rheology, and a smooth "feel" to products.
The nonionic structure of CELLOSIZE HEC offers good compatibility with surfactants and other formulation ingredients.
CELLOSIZE hydroxyethyl cellulose products are compatible with most common anionic and cationic surfactant systems. For example, a 1% aqueous solution of CELLOSIZE QP-52000H HEC containing 1% sodium dodecyl sulfate (SDS, also known as sodium lauryl sulfate), exhibits a slight increase in solution viscosity, and there is no change in the clarity of the solution. Similarly, 1% aqueous solutions of CELLOSIZE QP-52000H HEC containing 5% and 10% added sodium dodecylbenzene sulfonate (SDBS) show an upward increase in the solution viscosity, but no change in solution clarity (all solution concentrations are weight percent based on total solution). Effect of added sodium dodecyl sulfate on the solution viscosity of 1% CELLOSIZE HEC QP 52000H 
Effect of added sodium dodecyl benzene sulfonate surfactant on the solution viscosity of 1% CELLOSIZE HEC QP 52000H 
Aqueous mixtures of nonionic surfactants such as alcoholic or alkyl phenolic ethoxylates with CELLOSIZE HEC products can exhibit a significant reduction in solution viscosity or even phase separation. However, in many cases the addition of a suitable hydrotrope such as sodium xylenesulfonate (SXS) can completely reverse this drop in solution viscosity and phase separation observed with nonionic surfactants and CELLOSIZE HEC in solution. As shown in the graph below, the SXS hydrotrope itself has little effect on the solution viscosity of CELLOSIZE HEC in water. Effect of 4% sodium xylenesulfonate hydrotrope on the solution viscosity of 1% CELLOSIZE HEC QP 52000H 
For example, a 1% aqueous solution of CELLOSIZE QP 52000H HEC containing 4% TERGITOL™ NP-10 nonionic surfactant exhibits a significant decrease in solution viscosity, accompanied by an increase in haze. However, the addition of 4% SXS hydrotrope restores the initial solution viscosity of the CELLOSIZE HEC. Effect of 4% TERGITOL NP-10 surfactant with and without added sodium xylenesulfonate on the solution viscosity of 1% CELLOSIZE HEC QP 52000H 
Similarly, a 1% aqueous solution of CELLOSIZE QP 52000H HEC containing 5% TERGITOL NP-40 nonionic surfactant exhibits a large decrease in solution viscosity, while adding 6% SXS hydrotrope restores a significant amount of the original solution viscosity of the CELLOSIZE QP 52000H HEC. Effect of TERGITOL NP-40 surfactant with and without added sodium xylenesulfonate on the solution viscosity of 1% CELLOSIZE HEC QP 52000H 
In addition, CELLOSIZE HEC is also compatible with a variety of glycol ether solvents. The graph below shows the effect of added butyl CARBITOL™ solvent on the aqueous viscosity of CELLOSIZE QP 52000H HEC. A slight upward increase in solution viscosity is noted, with no change in the clarity of the solution. Effect of added butyl CARBITOL solvent on the solution viscosity of 1% CELLOSIZE HEC QP 52000H 
Other formulations for which CELLOSIZE HEC can be recommended include fabric softeners, shoe polishes, and as a binder in products that regulate the release of active ingredients, such as air fresheners. |
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