the pliable, hydrophilic material absorbed tears rather than shedding them, as did hard contact lenses, and virtually eliminated any sensation of the eyelid passing over the lens.
Thermoset plastic is a plastic material that can be molded and shaped. Applying the appropriate amount of heat to the material will cause a chemical change that will irreversibly cure it changing it to a hard material that can no longer be manipulated. This is different than other types of plastic materials which become softer and pliable whenever it is heated.
A material that can be permanently deformed is called a plastic material. This means that the material will undergo a change in shape that is not fully reversible after the deformation force is removed.
Yes, plastic forks can be called utensils. They are used that way, and the material out of which they are made dooes not, in this case, change their function.
Heat raises the temperature of the material. If the change is small then there is only a physical change and allowing the material to return to its original temperature will return it to its original physical state.However, too much heat can result in chemical changes which are usually not reversible. For example, if you heat a piece of plastic enough it will crumple into a charred mass. That charred mass will not return to the pristine plastic.
James T. Russell is credited with saying, "Invention is a combination of brains and materials. The more brains you use, the less material you need."
undergoes a permanent change in shape without fracturing. This occurs due to the movement of dislocations within the material that allow it to accommodate the applied stress.
no because all you are doing is changing the shape and form
unelastic
When plastic turns white when bent, it is due to a phenomenon called stress whitening. This occurs because bending the plastic causes tiny cracks to form on the surface, which scatter light and make the plastic appear white. The change in color is caused by the scattering of light due to the cracks, rather than a change in the actual color of the plastic material.
It's when a material gets bent, squashed or otherwise changes shape to the point where it can't change back when the load is removed.
the invention the could change the world would be the teleporter
The most dramatic change in agriculture in the South was the invention of the cotton gin.