THIXOTROPY PROBLEMS? .. .viscosity?... suspension? BAKER'S new brochure has the solutions.
THIXOTROPES FOR RHEOLOGICAL CONTROL
BAKER thixotropes are the most effect i v e c o l l o i d a l f l o w agents for a w i d e range of commercial compositions.They are low in cost...completely physical in nature...they require no kind of chemical reactivity with other materials in the liquid. And the rheological properties imparted are permanent and truly thixotropic.They aid product appearance... are inert...non-hygroscopic...durable... dustless for easy handling...and have outstanding package stability. BAKER's line of thixotropes includes: Thixcin® E, Thixcin R, Thixatrol® S t . . . non-toxic powders, completely organic.
M-P-A®.an organic paste which controls flow and also suspends pigments and other finely-divided s o l i d s . . . w i t h little or no increase in viscosity. It is non-toxic and supplied as a pre-dispersion in mineral spirits, toluene, xylene, butanol or dioctyl phthalate.
BAKER THIXOTROPES ARE EFFECTIVE IN THESE LIQUIDS:
TYPICAL APPLICATIONS OF BAKER THIXOTROPES
(partial list) Aliphatic, Aromatic and Terpene Solvents
Adhesives Asphalt Compounds Caulks, Putties and Glazes Carbon Paper Ceramic Solutions Coated Fabrics and Paper Cosmetics Dry Cleaning Emulsions Inks Lubricants Mastics Pharmaceuticals Pigment Dispersions Polishing Compounds Protective Coatings Reinforced Plastics Rubber Cements and Solutions Stains Vinyls Wax Polishes Wood Fillers
Shows you how BAKER thixotropes can control the viscosity and suspension characteristics of a wide range of products. ..precisely and economically. What is a thixotrope? A thixotrope is an agent that swells and disperses in a liquid vehicle to form its own stable network of colloidal particles.The struct u r e is s t r o n g enough to resist low s t r e s s e s and b o o s t s t h e l i q u i d ' s apparent viscosity under such conditions as sagging, settling and phase separation.
Oxygenated Solvents Alcohols Glycols Glycol Ethers Esters and Ketones
Viscosity of a liquid depends on the shear stress to which it is being subjected at any given moment. To assure optimum flowability in a product, its viscosity must be controlled under both high-magnitude shear ( e n c o u n t e r e d during processing and application)... and low-magnitude shear (forces such as gravity and s u r f a c e t e n s i o n ) . For ease of processing and application, a low-viscosity system under high shear is desirable.
Miscellaneous Liquids Polyglycols Plasticizers Liquid Resins, Solventless and Solvated
Optimum suspension of pigments and other finely-divided solids in a liquid depends on the nature and viscosity of the liquid...and, the size, density and quantity of the solids. For control of sagging, slumping, settling, sedimentat i o n and phase s e p a r a t i o n , a h i g h viscosity system under low-shear is needed. By proper formulation it is possible to have both characteristics: low viscosity under high-shear... and high viscosity under low-shear. And using a thixotrope is the best and most economical way of imparting the proper flow (rheological) properties to a liquid.
Oils Petroleum Animal Oils Vegetable Oils
Experimentation is the best way to determine the exact amount of thixotrope to add to a product. Generally, 0.1% to 3% of a BAKER thixotrope is all that is necessary to suspend solid particles in most liquids. Normally, up to 7% addit i o n w i l l t h i c k e n simple liquids to a paste consistency.
If you would like to know more about solving your thixotropy problems, send in the coupon below. The Baker Castor Oil Company 40 Avenue A Bayonne, New Jersey I would like to improve the thixotropy of_ (name of product) •
Please send me your new bulletin entitled "Thixotropes for Rheological Control."
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Please have a BAKER representative call on me. -Position-
Name. CompanyAddressCity
_^
THE
_State_
Baker
CASTOR OIL COMPANY
Bayonne, New Jersey C&EN
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