Viscosity
As temperature increases, viscosity reacts in this way.
What is decreases?
This is the chamber in which the screw turns and the plastic flows.
What is the barrel?
These types of polymers are typically used because they have a larger thermoforming window.
What is amorphous?
This is type of coextrusion process combines melt streams just before die exit.
What is multi-manifold?
This American road runs from Chicago to Los Angeles.
What is Route 66?
This type of viscous behavior is observed by polymers as shear rate is increased.
What is pseudoplastic/shear thinning?
The feed throat is usually cooled to avoid premature sticking of the polymer known as this.
What is bridging?
These are the 3 steps for thermoforming.
What are heating, forming and trimming?
This is the name of the extra thickness created on the edge of cast film.
What is an edge bead?
This battle between the U.S. and British effectively ended the Revolutionary War.
What is Yorktown?
For materials that exhibit a dilatant behavior, they have a linear behavior much like newtonian but have this difference that sets it apart.
What is overcome an initial yield?
This is what generates the heat within the extruder and melts the resin that is being conveyed through the system.
What is friction?
This type of thermoforming uses an additional structure that helps with bottom thickness when using a female mold.
What is plug assist?
Of cast & blown films, this film is usually more crystalline and hazy.
What is blown film?
Of the following movies (Jurassic Park, Hook, Raiders of the Lost Ark, or Jaws), this one was released in the 1980's.
What is Raiders of the Lost Ark?
This is the time required for a specfied mass of a polymer to flow through a specified capillary under controlled conditions of temperature and pressure.
What is melt index?
This is the area of the extruder where the majority of "melting" should occur.
What is the compression section?
This type of mold (positive or negative) requires a larger draft angle.
What is positive?
This cooling mechanism on a cast film line quenches the newly produced film on BOTH sides through CONDUCTIVE cooling.
What is a three roll stack?
What year did the comedy sketch TV show, “Saturday Night Live,” debut?
What is 1975?
Viscosity falls under this category of science that studies the deformation and the flow of matter.
What is rheology?
This part of the extruder provides the power and turns the screw.
What is the drive motor?
These are the 2 upper boundaries on the x and y axis for the operating window for thermoforming.
What are the max stress of the process/machine and the max strain/elongation of the thermoformed part?
This type of coextrusion mechanism is used when the materials have similar flow properties.
What is feed block?
How old was Queen Elizabeth II when she was crowned the Queen of England?
What is 27?