Cornstarch is an example of a polymer. Polymers are long strains of molecules that keep repeating and have different properties of the original single molecule group. A single section of a polymer is called a monomer. It resembles the simplest form of the repeating portion of the entire polymer. These polymers may get stretched when you make a mixture such as cornstarch and water. This mixture behaves a certain way. There are many theories on why this may occur. One theory is because the strands get tangled, making it hard for them to slide against each other. Stretched molecules would offer more resistance to movement, like the resistance of a stretched rubber band. However, this argument does explain why rapid motion (stirring, shaking, etc.) increases viscosity, which is the property of a fluid that offers resistance to flow. Cornstarch and water is a non-Newtonian, organic fluid. Fluids can fall under different sub groups. They are either Non-Newtonian or Newtonian. They can also be either organic or non organic. NonNewtonian Fluids are a group of liquids that change viscosity when they are stirred, shaken, or otherwise agitated. Cornstarch and water acts differently depending on whether it is still or agitated. This kind of fluid is called a dilatant. It becomes more viscous (has a relatively high resistance to flow) when agitated or compressed. The viscosity of a non-Newtonian fluid is also dependant on temperature. Cornstarch would decrease in viscosity if put in a boiling pot (it would become thinner). Examples of Newtonian fluids include motor oils, mineral oils, gasoline, kerosene, and most salt solutions in water. The most popular explanation for the behavior of cornstarch and water is that when sitting still, the tiny grains of starch are surrounded by water. The surface tension of the water keeps it from completely flowing out of the spaces between the grains. The lubrication of water allows the granules to move freely. However, if the movement is abrupt (shaking, stirring, poking, slapping, etc.) the water is squeezed out from between the granules and the friction between them increases dramatically. Other examples of polymers are present in our everyday lives. Water-resistant paints and varnishes derive from a family of synthetic polymers called acrylics. Polystyrene foam, or styrafoam, is used when making cartons to protect eggs, or making packing peanuts to cushion fragile objects for shipping. It insulates, so people put drinks in foam cups and coolers to keep the warm ones warm and the cold ones cold.
An emulsion is the forcing of substances that would not normally mix. In this experiment, multiple oil-in-water emulsions were performed. An oil-in-water emulsion is when there are little droplets of oil dispersed throughout water. The most common type of emulsion includes fats and water. A temporary emulsion was formed from this experiment. A temporary emulsion has to be shaken or mixed in some form to stay together (later on it will separate). This similar idea is used with salad dressings.
The viscosity of the corn syrup, measured in seconds it takes for an iron ball to move downwards in the fluid.
Stiffness In terms of stiffness this additive is hard and stiff. This affects the polymers in a good way because it acts like a protective shield for the polymer to stop any polymer oxidation on the polymer.
For our purposes Slime will be designed as any non Newtonian fluid. If this term sounds hopelessly technol , Please read on-It is actually quite simple to understand what this term means it is important to sample the theories of Isaac Newton (1642-1727) , one of the greatest scientist who ever lived. He made many revolutionary discoveries in the fields of mathematics motion and gravity. But he also did a lot of work with fluids. Slime is a pretty cool project that is fun to make ,play with,decoratie, and personalize, while also being pentest 2 learning tool. It’s an ozzy material, but will not stick to your skin. Sometimes it looks solid and sometimes it looks like a liquid.Do you know why this happens?You can use other things that are most borax slime can also be made using liquid starch And maddie Rae’s Slime Glue. How is slime
Viscosity is the tendency of a fluid to resist flow and can be thought of as the internal friction of a fluid. Microscopically, viscosity is related to molecular diffusion and depends on the interactions between molecules or, in complex fluids, larger-scale flow units. The opposite of the viscosity is the fluidity which measures the mobility for fluid layers (Secco et al, 2013). Viscosity is affected by the temperature and composition of the fluid and, for compressible fluid, also by pressure (Serway et al, 2012).
The synthesis of polymers starts with ethylene, (or ethene). Ethylene is obtained as a by-product of petrol refining from crude oil or by dehydration of ethanol. Ethylene molecules compose of two methylene units (CH2) linked together by a double carbon
chains instead of hydrogen atoms. Cross-linking is another way in which the polymer can be made stronger. This involves ultraviolet radiation that bombards the polymer with electrons and formulates bonds between the molecular chains of the polymers. This is like linear polyethylene but different in that it is more impact resistant, and it has a much higher density. This allows it to be stored or be used with different chemicals that would normally cause the polymer to desolve.3 This can start to become a problem because as the polymer continues to become chemically enhanced. So the ways of dissolving and recycling the polymer become more difficult.
carbohydrates one of them is starches, and the second one is sugar. Starches are large polymers
Viscosity is the resistance of a fluid to flow. The molecules experience friction due to the molecular interaction among them. Different fluids with different viscosities flow at a different speed the more force the more viscous fluids of a fluid to flow is known to be the amount of thickness in any fluid for, example water would have low amount of viscosity and honey being thicker would have a high viscosity. Although viscosity can be known to be different depending on the density of the liquid. Force is required for any object to to travel the more viscosity that is in any liquid the more force is required
If the concentration of sucrose increases, then the mass of the potato will decrease. However, if the concentration of the solution in the beaker is less than that of the potato (such as distilled water), then the mass of the potato will increase. So, as the concentration of sucrose increases the rate of osmosis increases.
Fluid such as water , air, ethanol and benzene are Newtonian. The shear stress is plotted against shear rate at a given temperature; the figure ( 6 ) shows a straight line with a constant slope that is independent of shear rate. This slope is called the viscosity of the fluid. The simplest constitutive equation is Newton‟s law of viscosity;
The speed of the reaction is determined by the specific molecules that are being combined. The collision theory states, that when more collisions occur there will be an increase in combinations of molecules rebounding off each other. If there is more molecules, than there is a higher chance that the molecules will complete the reaction. When all of this takes place it speeds up the rate of a reaction. An example of this is maple syrup the molecules move slowly compared with soft drink where they move fast.
Viscosity is the property of a fluid which offers resistance due to the movement of one layer of fluid over another adjacent layer of fluid. The top layer causes a shear stress on the adjacent lower layer while the lower layer causes a shear stress on the adjacent top layer. So the viscosity is a measure of the internal fluid friction which causes resistance to flow. It is primarily due to cohesion and molecular momentum exchange between fluid layers and as flow occurs, these effects appear shearing stresses between the moving layers of fluid. An ideal fluid has no viscosity. There is no fluid which can be classified as a perfectly ideal fluid. However, the fluids with little viscosity are sometimes considered as ideal fluids.
Ultrasonic is the universally accepted technique to study the physico-chemical properties of the liquids, liquid mixtures, electrolytic solutions and polymeric solutions. Liquids, liquid-mixtures and solutions find wide applications in medical, pharmaceutical, chemical, lather, textile, nuclear and solvent, solution related industries. The study and understanding of the thermodynamic properties of liquid mixtures and solutions are more essential for their applications in these industries. The measurements of ultrasonic velocity in the combination of density and viscosity have been used to study the molecular interactions in liquid mixtures and solutions.
It state that, when a shear stress is applied to a fluid, the velocity that it yields in the direction perpendicular to the stress is proportional to the applied stress. Those liquid obeys newton’s law of viscosity is called Newtonian liquid.