Modifikatori reologije u bojama
Reologija u premazima i uloga modifikatora reologije
Organoclay as reološki modifikatori imaju značajan utjecaj na različite aspekte boje. Može utjecati na svojstva unutar limenke. Može doprinijeti poboljšanju teksture boje dok je unutar limenke ili u spremniku. Organoclay pomaže u održavanju strukture boja i izbjegava taloženje.
Također utječe na svojstva primjene. Ovako se boja glatko širi i prianja na površinu. Ako ne koristite formulaciju modifikatora reologije u bojama, tendencija je da se boja neće zalijepiti za površinu. Također poboljšava svojstva filma, which determine the final appearance and durability of the painted surface.
Rheology modifiers like organoclay and organophilic clay are employed to achieve specific goals in paint and coating formulations, such as targeted stability and desired flow characteristics. They serve as anti-settling agents in solvent-based paints and water-based paints, preventing the settling of pigments and other solid particles inside the paint formulation for a consistent and uniform paint application.
Which Rheology Modifiers is Right for Your System?
Sometimes it’s difficult to choose and know what Rheology Modifiers in Paints you’ll use in formulating paint products. As easy as it may seem, you can choose between two kinds of rheology modifier. These are organic rheology modifiers and inorganic rheology modifiers. Važno je znati svoju formulaciju kao i vrstu reološkog modifikatora koji ćete koristiti u svom proizvodu boje.
Organski modifikatori reologije | Modifikatori reologije u bojama
Ova vrsta reoloških modifikatora izvedena je iz prirodnih sirovina. Ovi modifikatori nude nekoliko prednosti, uključujući jednostavnost ugradnje, kompatibilnost s raznim vezivima, i sposobnost pružanja izvrsnih svojstava zadebljanja i sprječavanja spuštanja.
Anorganski modifikatori reologije u bojama
Ovi modifikatori uključuju materijale kao što su gline, silicijev dioksid, i specijalne gline poput bentonit gline ili hektorit organogline. Anorganski modifikatori reologije poznati su po svojoj sposobnosti pružanja izvrsnog tiksotropnog ponašanja i svojstava suspenzije. Posebno su korisni u sustavima gdje je poboljšana kontrola protoka, niveliranje, i poželjna su svojstva protiv taloženja.
Posebno modificirane gline
These special type of rheology modifiers has the best of both worlds. Commonly, an inorganic clay like bentonite has been processed to go through organophilization processes that improves the clay’s properties. This process combines the thickening and anti-sagging properties of organic rheology modifiers and the viscosity control and anti-settling properties of inorganic rheology modifiers. This makes organoclay the best choice for paints and coating formulations.
Modifikatori reologije & Waterborne Systems Performance
Modified bentonite organoclay is widely recognized for its ability to prevent sagging in water-based systems. It is derived from inorganic modified montmorillonite clay, typically appears as a fine white powder. It undergoes a processing treatment under 105 degrees Celsius for 2 sati, resulting in a moisture content of less than or equal to 10%. The bulk density of this modified clay ranges from 0.40 to 0.60g/cm3.
Modified bentonite organoclay exhibits viscosity of at least 1500 mPa·s when tested at a concentration of 3% u vodi. This high viscosity helps in controlling the flow and leveling of waterborne systems, ensuring a uniform and consistent application.
Prednosti
Even at a low concentration of 2% u vodi, organoclay Rheology Modifiers in Paints is capable of forming a gel. It can effectively control the viscosity and flow of the system. Organoclay is also easy to disperse, allowing for convenient and efficient incorporation into water-based formulations.
The gel formed by organoclay is transparent and light in color, ensuring that it does not impact the appearance of the final product. That property is desirable when working with transparent or lightly colored coatings. It can also act as a pigment settling preventer, and that helps maintain pigments and solid particles remain uniformly distributed throughout the system.
Primjena
Organoclay used as rheology modifier in waterborne paints can be conveniently added directly as a powder. The recommended addition level of organoclay typically ranges from 0.2% do 3.0% based on the total weight of the formulation. You can add the organoclay powder directly to water with pH level ranging from 7.0 do 8.0. You can add other compounds in the mixture like the pigments, fillers and other additives. You can conduct post-correction as well to achieve desired results for your paint and coating product.
Rheology Modifiers for Solvent-Based Coatings
An organic derivative of a bentonite clay or organoclay can also be used as a rheology modifier in solvent based coatings as well. This additive offers several advantages, including ease of dispersion within the coating formulation. It is designed to work effectively in solvent-based systems that primarily consist of aliphatic and other non-polar to medium-polarity solvents. The modifier can seamlessly integrate into the formulation without causing any issues.
Prednosti
Organoclay can be added at any stage of the manufacturing process, allowing for flexibility and ease of incorporation. Whether it’s during the pigment dispersion stage or during the final formulation adjustment, the Rheology Modifiers in Paints can be introduced to achieve the desired rheological properties.
It can also be used during post-correction stages. This means that if adjustments are required after the initial formulation, the Rheology Modifiers in Paints can be added to fine-tune the coating’s viscosity, flow characteristics, or sag resistance.
Prijave
Organoclay, when used as a Rheology Modifiers in Paints, finds application in a wide range of solvent-based products. Its versatility and effectiveness make it a valuable additive in various industries. It is widely applied as a Rheology Modifiers in Paints with anti-corrosive , bituminous coatings, decorative alkyd paints, do-it-yourself paints, tiskarske boje, početnice, punila, undercoats, traffic paints, and wood stains to prevent sagging, improve the application process, and enhance the overall performance of the coating. It also helps the solvent-based paints in-can properties to avoid sedimentation and many more.
U anorganskim sustavima boja i premaza, ili u sustavima na bazi otapala, naši reološki aditivi zaslužuju vaše povjerenje i pokušajte. On će vam pomoći poboljšati učinkovitost proizvoda, a vrijednost prikazana u aplikaciji premašit će vaša očekivanja. Naša web stranica će pružiti odgovarajuću podršku testiranju, na primjer, pružanje besplatnih uzoraka, na primjer, izravno izvodeći prilagodbe divljenja u našem laboratoriju, itd.