Elements of Reactor Design Flashcards
manufacturing process used to
produce molded plastic parts, particularly those with complex
shapes, intricate details, and high-quality surface finishes.
Reaction Injection Molding (RIM)
involves a chemical
reaction between two or
more liquid components
that are injected into a
mold under high pressure
and temperature
Reaction Injection Molding (RIM)
recirculation reactive components
polyol and isocyanate
a technique of polymerization
that involves the dissolution of a monomer in a nonreactive solvent that contains an initiator or cata
SOLUTION POLYMERIZATION
formation of polymer from pure,
undiluted monomers.
This may include small quantities of solvent, catalysts,
initiators, and chain-transfer agents
BULK POLYMERIZATION
also known as pearl or bead
polymerization, is a polymerization in an aqueous system
with the monomer as a dispersed phase.
SUSPENSION
POLYMERIZATION
involves the use of an emulsifier
or surfactant, a water-insoluble monomer, a dispersion
medium, and a water-soluble initiator.
EMULSION
POLYMERIZATION
The monomer is dispersed in the aqueous phase as a
uniform emulsion, in which it is stabilized by a surfactant
having a hydrophilic and hydrophobic end.
EMULSION
POLYMERIZATION
consists of a tube of high aspect ratio.
plug flow reactors
t involves the breakage of the backbone
bonds to yield free-radical segments
CHAIN SCISSION
It involves the elimination of a small
molecule from a substituent group and
subsequent double-bond formation
NON-CHAIN
SCISSION
where monomer units are released at an
active chain end
Depolymerization
the chain is broken at random
sites
Random degradation
the chain breaks at the lowestenergy bonds
Weak link degradation
results from the breakage of a
carbon–halogen bond and the
subsequent liberation of hydrogen
halide.
dehydrohalogenation
