Abrasive Cleaner, Liquid

Exercise Produce a prescription for the rheology of a liquid abrasive cleaner that has to suspend solid particles, but has to readily drain down a vertical surface. 

Shear-thinning liquids in general become more fluid, less viscous, as the shear rate on them increases. Typical examples of such fluids are shower gel, hair conditioner, fabric conditioner, liquid abrasive cleaner, fabric washing liquid, printing ink, facial wash, flocculated... 

Abrasive cleaners are often needed for laboratory jobs, such as removing pencil markings from etched spots on glassware. No glassware should be put away with such markings. Liquid cleaners of this type may not be as effective as powders, but their gentler abrasives are less likely to cause scratching. 

Hard-Surface Cleaning. Products used Tor hard-surface cleaning around the home include the hand- and automatic dishwashing products, the liquid and powder floor and wall cleaners, and the abrasive scouring cleansers. 

Liquid cleaners with suspended abrasives — cream cleansers — first started to appear in the U.S. and Europe in the 1980s. This chapter does not go into detail on the formulation of these products because although they are fluid household surface cleaners, they should be properly considered as suspensions and not as true liquid formulas. Their arrival on the market so recently is due to the difficulty of producing stable suspensions of abrasive particles the advancement of polymer science and clay technology during the last 30 years has played a large role in the successful formulation of these products. 

Sometimes the abrasive is given as an optional ingredient in an otherwise completely liquid cleaning formula. In one example of this type, the abrasive is combined into a terpene/limonene solvent-based cleaner while remaining stable [45], In another example, the surfactant instead of the abrasive is largely eliminated [46],... 

Originally, toilet bowl cleaners, like all-purpose cleaners, were powders based largely on sodium bisulfate [364], They were packaged in dispensers very much like powder abrasive cleansers. In fact, many products that have been mentioned in this review are used to clean the toilet. General bathroom cleaners, liquid and powder abrasive scourers, all-purpose cleaners, and even simple household bleach are used by consumers for this task. Modern cleaners specialized for toilet bowl cleaning, however, have one factor in common that these other formulas... 

Similar to the technology used to produce cream cleansers, there are also formulas that can produce liquid toilet bowl cleaners with suspended abrasives [376,377]. The main difference between the cream cleansers and this type of product is that the suspending system should be acid stable instead of alkaline and/or bleach stable. Suspended particles are appearing in more and more of the toilet bowl cleaners. This has been commercialized in a gel form, which shows the suspended particles. 

Oily soils must be removed before any other surface preparation is attempted. Otherwise these soils may be spread over the surface. These. soils can also contaminate abrasive cleaning media and tools. Oily soils can be removed faster using liquid cleaners that impinge on... 

Shot-blasting with microbead glass shot is recommended. Alternatively soak the mould in an alkaline cleaner, scour with abrasive powder and polish with a liquid-based abrasive ( Brasso ). 

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