A guide to understanding and mixing thickeners rheology modifiers, commonly referred to as thickeners or viscosifiers, are everpresent in most products. Like other hase modifiers, acrysol rm7 rheology modifier offers a nearly newtonian rheology profile with lower viscosity in lowshear conditions and higher viscosity in highshear conditions. Acrysol sct275 rheology modifier is recommended for use in flat to semigloss paints and primers for both exterior paints and premium interior paints. Rheology modifiers and thixotropes ppg precipitated silica. It is an effective suspending and stabilizing agent for use in specialty shampoos, where dandruff actives must be. In addition, this rheology modifier has broad compatibility with packaging dispensers. The use of these additives cut across several process industries including food, pharmaceuticals, cosmetics and personal care, adhesives, textile. Global rheology modifiers market is expected to reach. Rheology modifier and thickener for personal care worlee. Oct 23, 2000 testing revealed that the 4020 rheology modifier gave stable rheological results after aging and exhibited better water resistance scrub results than the standard rheology modifier package used. Rheology is a central factor in the relationship between consumers and cleaning products. Selection guide basf offers a wide range of rheology modifiers for waterbased and solventbased systems.
Emulsifier for ow or wo emulsions with high levels of electrolytes or metal oxide pigments. Rheology modifiers produce a threedimensional gel network in the continuous phase resulting in a nonnewtonian fluid, which provides stability to the formulation. While a surfactant is the key ingredient used to control surface tension, a rheology modifier is the ingredient used to control the viscosity of the ink, or more precisely the rheology profile of the ink, which includes the yield stress and the viscosity at different shear modes and rates. Natural rheological modifiers for personal care wiley online library. The top countries of suppliers are india, china, and pakistan, from which the percentage of rheology modifier supply is 1%, 94%, and 1% respectively. Find all the rheology modifiers your product requires from telkos portfolio. The euclid chemical company has served the global building market as a worldwide quality supplier of specialty products and technical support. Drillwell d294 rheology modifier for oil based muds. The rheology modifier must give high viscosity so the product does not separate during longterm storage but still allow the product to be easily poured from the package. As one of the main sensorial attributes of a product, it is an essential cue in the consumers perception of quality and performance. For interior wall paints, hiresol 1900 rheology modifier is compatible with all types of emulsions, allowing formulations with excellent technical performance as well as outstanding application properties, in gloss paints it is suggested to be used in combination with small particle size hydrophobic, acrylic gloss binders. All of these functional terms are in fact subsets of the term rheology modifier.
Sagflow balance, universal viscosity retention on tinting, and optimum applied hide. Heur associative rheology modifier which can impart excellent rheological properties including flow and leveling, uniform film formation and film build, to latex based coatings. This information and all further technical advice are based on our present knowledge. Drillwell d294 rheology modifier rm is a proprietary product used for rheology control in invert oilbased drilling fluids obm including mineral, diesel and synthetic oils. As a global manufacturer of cosmetic ingredients and functional fine chemicals, hannong chemicals has been supporting manufacturers of cosmetics, home. The yield stress along with the meniscus has a major effect on the latency. A list of lubrizol personal care rheology modifiers. Rheology effect of shear rate aculyn 22 rheology modifierstabilizer thickener is a lowviscosity dispersion that becomes.
Dt 864 is a vocfree heur rheology modifier that provides excellent efficiency in many types of coatings. Effect of attagel thickener concentration on the viscosity of water dispersions. Richard giles akzonobel technical service and development. Learn how to select the best rheology modifier for waterborne and solvent borne coatings, key benefits, limitations and applications. Rheology modifier kstay 501 rheology modifier for non. They also reliably prevent sedimentation of pigments during transport and storage of the paint. A wide variety of rheology modifier options are available to you, there are 336 suppliers who sells rheology modifier on, mainly located in asia. Our rheology modifiers also provide additional functionalities like wetting properties and health. Carbopol, glucamate and novethix rheology modifiers for home and personal care products. For instance, the company launched a new rheology modifier. For example, rheology modifiers from basf reduces dripping and spattering of paint during roller or brush application. The rheological behavior of the coating formulations was characterized in terms of the shear rate dependence of the viscosity.
Associative rheology modifiers consist of a water soluble polymer backbone that contains two or more hydrophobic groups. Selecting rheology modifiers for adhesives rheology modifiers improve the viscosity and have a great impact on the application characteristics of adhesive and sealant formulations. Rheology modifier for decorative coatings coating additives. Acrysol rm7 rheology modifier is a remarkably versatile hydrophobically modified alkalisoluble emulsion hase thickening agent for latex coatings. Pdf rheology modifiers in waterbased rotogravure inks. Plus rheology modifier is an acidswellable associative thickener. This overview can help you to select the right product for a specific application or paint formula. The products of the entire worleeaqua thix line forms different levels of thickening, yield strength, or thixotropy depending on the formulation, thus enabling stable. Another primary function of polymeric rheology modi. Rheological modifiers article in polymers for advanced technologies 2712 december 2016 with 741 reads how we measure reads. Moreover, the company has developed a new rheology modifier to meet the increasing demand. Please note that the viscosity and rheology imparted by hec, hase or heur can be very adversely effected by.
The table shows the physical properties of the paints made. A skin cream should appear highly viscous in the jar but should be capable of being picked up and rubbed into the skin. Predictive modeling of rheology modifier for low ph clear surfactant systems yi yang, ann giovannittijensen, qunhua xu, krishnan tamareselvy, duane krzysik, christina he new polymeric rheology modifier acrylates crosspolymer4 is a patent pending emulsion copolymer that has a varying crosslinked gradient zone from the inner core to the surface. Rheovis hs 1181 which is an apeofree hase thickener, mainly designed for high pvc paints. Effect of synthetic modifiers on the rheology of coating colours. Rheology modifiers for cosmetics, cleansing, and skin care. The use of these additives cut across several process industries including food, pharmaceuticals, cosmetics.
Rheology modifiers viscosity modifiers thickeners rheology is the study of flow and deformation of matter. Rheology modifiers product group overview performance. Wyss weitzlab group meeng tutorial 10x1035 0 5 10 strain 0 2 4 6 8 10 12 time s. Solids are said to have an elastic response, and can resist. Akzonobel technical service and development manager. This handbook was written because, in the authors experience, the selection of a rheology modifier for specific applications is an arduous task.
Explore the importance and role of rheology modifiers along with their. These rheology modifiers cover the whole range of newtonian, pseudoplastic and highly pseudoplastic thickeners. Rheology modifierstabilizer behavior profile aculyn 22 rheology modifierstabilizer possesses many properties that make this polymer highly desirable for use in personal care, as shown by the data presented below. Highperformance, costeffective rheology modifiers for the coatings industry. Pectin is characterized as an emulsifier, gelling agent, glazing agent, stabilizer, andor thickener in commercial applications codex alimentarius, 2015. At azelis, we supply speciality chemicals for the home care and industrial cleaning sector including thickeners and rheology modifiers. Formulated blends that impart truly unique rheology properties. Heurs offer a wide range of rheological properties, from newtonian very little shearthinning to quite pseudoplastic strongly shearthinning. They help you to adjust the flow properties as well as prevent settling down of fillers during settling and transportation in your formulation. That way, painters benefit improved viscosity and application characteristics. For many applications the formulations optimum viscosity will depend on the state of the product i. Most paper grades are coated with aqua based coatings to change the substrates sur. Pdf recently, waterbased inks have been of more and more interest to the printing and ink industry, because of their environmental benefits.
For over a century, the euclid chemical company has served the global building market as a worldwide quality supplier of specialty products and technical support services for the concrete and masonry construction industry. Rheology modifiers product recommendations for asia pacific pdf, 171 kb. Aerosil primarily served as a tool for adjusting rheology during production, application and storage. Highperformance, costeffective rheology modifiers for the. For interior wall paints, hiresol 1900 rheology modifier is compatible with all types of emulsions, allowing formulations with excellent technical performance as well as outstanding application properties, in gloss paints it is suggested to be used in combination with. Once dissolved in an oil based drilling fluid, this modifier displays flat rheology characteristics upon evaluation by typical fann. Rheology modifiers rheology can be defined as the science or study of how things flow, and it is a requirement of personal care products that they flow in the right way. Effect of synthetic modifiers on the rheology of coating. An additive for oil and syntheticbase muds that provides high viscosity at low shear rates, which is useful when drilling highangle and horizontal wells and can be critical for cuttings carrying and to prevent sag and settling of weighting material. Rheology modifiers market size industry share report 2024. In both solventbased and waterborne formulations, rheology modifiers also called thickeners for paints help to achieve the desired rheological behavior.
Organic rheology modifiers market size is projected to expand at over 3. Rheology modifiers pdf, 867 kb rheology modifiers product. Carbopol aqua sf3 polymer is a novel, liquid, acrylic rheology modifier for high clarity, waterthin, surfactant formulations that provides elegant flow, and suspension of aqueous insoluble ingredients. Apart from getting desired viscosity, these additives also help in controlling paint shelf stability, ease of application, open time wet edge and.
Information on 20 different types of rheology modifiers manufactured by 26 companies worldwide is described. Rheology modifiers, thixotropes and thickening agents for adhesives and sealants. Products used include dimeric and trimeric fatty acids, imidazolines, amides and synthetic polymers. Chattanooga, tn the addition of a rheology modifier to provide necessary processing and performance characteristics is typical of many formulations. Water in oil emulsion drilling and well treatment fluids comprising an ester of trimer fatty acids and polyoxyethyiene glycol, the polyoxyethyiene glycol having average molecular weight from about 150 to about 600 and the trimer acids having at least about 20% of carboxyl acid groups esterified, as rheology modifier. Rheology modifiers rheology modifiers enable formulators to adjust the flow behavior of paints. Aseries, hhase, iseries, hmiseries, and hmlseries rheology modifiers, branded under our acrypol trademark, are designed to perform in a wide array of industries and applications. Highperformance, costeffective rheology modifiers for. Our focus is on highly efficient additives for waterbased systems. The goal of this study is to analyze the influence of the rheology modifiers.
Rheology modifiers product group overview performance and. Samples using the 4020 rheology modifier have extremely good viscosity stability. New rheology modifier technology for reducing viscosity loss on. Those industries being textile, fabric and home care, construction compounding, pigment, and paint. Rheology modifiers from basf effectively reduce dripping and spattering of paint during roller or brush application. Rheology definition of rheology by medical dictionary.
The product is applicable for use in most nonaqueous drilling fluids including diesel, olefins, and esters. The impact of rheology modifiers on the viscosity of decorative water based paint upon tinting 5 the most notable change is the reduction in viscosity observed on tinting especially when associative thickeners are employed 14. Whilst the efficacy of the finished product will depend on the choice and level of active ingredients and. Hubers ground calcium carbonate gcc is widely used in adhesives, caulks and sealants applications as a rheology modifier, costreducing filler, tensile strength enhancer, toughening agent, opacifier andor whitening agent. The texture and feel of body care products on skin and hair is important for the consumer. Rheology modifier an overview sciencedirect topics. Plus rheology modifier is an acidswellable associative thickener for use in hardtothicken personal care formulations designed to thicken and stabilize formulations in the low ph range provides clear, thick gels even in the presence of cationic ingredients also effective in neutral region with surfactants. Manufacturers of adhesives, sealants and other engineered materials around the world have relied on our ppg hisil silica thickening agents, rheology modifiers and thixotropes to help address the complex formulation, manufacturing, application and performance challenges they face. Rheology modifiers are vital additives for paints and coatings. Predictive modeling of rheology modifier for low ph clear.
Influence of rheology modifiers and coating parameters on the color. Rheology modifiers as you know, rheology is crucial for the success of your paint at every step. A novel rheology modifier for agrochemical formulations. Sag resistance is improved by a rapid but controlled viscosity increase after application. Clariant knows this and has developed the hostagel line of rheology modifiers accordingly. Heurs offer a wide range of rheological properties, from newtonian very little shearthinning to quite pseudoplastic strongly shear. Telko is a reliable supplier of raw materials even in a tight schedule. There exist three main groups of rheology modifiers. Rheology modifiers philip green, paint technology consultant, comments on the definition and practical usage of physical attributes that are commonly used for the characterisation of coatings. Formulating with associative rheology modifiers daniel w.