chpt1234 first half

Question 1

combining monomers with polymers

Answer 1

crosslinking

Question 2

polymer foam

Answer 2

polyurethane

Question 3

polymer cures by heat

Answer 3

thermoset

Question 4

dry and react in a series of steps. the surface that is coated is turned into a coating with an electrochemica

Answer 4

conversion coating

Question 5

volatile organic concentration . portion of the liquid coating wich evaporates into the atmosphere.

Answer 5

VOC

Question 6

type of applications which are possible. uses seconds or krebs unit

Answer 6

viscosity

Question 7

the degree of dispersion of the pigment in the vehicle. fine grind high gloss

Answer 7

fineness of grind

Question 8

indicates how much of the coating must be used for the required film thickness

Answer 8

nonvolatile by volume

Question 9

provides a measure of the solids compared to the solvent in the coating.

Answer 9

nonvolatile by weight

Question 10

weight per gallon generally indicates something about the ingredients of the

Answer 10

specific gravity

Question 11

pigments in the form of flakes or platelets prevents actinic rays of the sun from

Answer 11

metallic pigments

Question 12

pigment used in primers which use the concept of inhibition

Answer 12

inhibitive pigments

Question 13

also called extender pigment, it strengthens the film by various means

Answer 13

reinforcing pigment

Question 14

pigment that provides the decorative characteristics of a coating

Answer 14

color pigment

Question 15

hydrofuran and nitroparaffins

Answer 15

miscellaneous solvents

Question 16

water

Answer 16

non volatile solvent

Question 17

not used by industry but glycol ethers are

Answer 17

ethers

Question 18

for highly polar binders such as phenolics ethyly alcohol

Answer 18

alcohols

Question 19

oxygenated but have a pleasant odor butyl acetate

Answer 19

esters

Question 20

oxygenated hydrocarbons of the acetone family

Answer 20

ketones

Question 21

closed chain, like a ring, benzene, have a smell

Answer 21

aromatic

Question 22

may also be called paraffins, straight chain molecule

hexane

Answer 22

aliphatic

Question 23

binders of different types are emulsified to form a liquid binder. latex

Answer 23

coalescent

Question 24

resin changed by heat from a solid to a liquid and back to solid again

Answer 24

film formation by change of phase

Question 25

involves 3 reactions by ionizing the zinc

Answer 25

film formation by inorganic zinc

Question 26

create large molecules out of smaller ones. cross linkage or catalyst. liquid resins converted to solids

Answer 26

film formation by polymerization

Question 27

this film forms from drying oils, called triglycerides

Answer 27

film formation by oxidation

Question 28

all the thermoplastic film formers are formed by _______ _______

Answer 28

film formation by solvent evaporation

Question 29

materials that form a film are classified under two categories

Answer 29

thermoplastic and convertible

Question 30

solvent evaporation, oxidation, polymerization, inorganic, change of phase, coalescent

Answer 30

film forming mechanisms

Question 31

the corrosion at a break in the coating, growing back underneath the surface of the coating away from the break.

Answer 31

undercutting

Question 32

ability of the coating, and the resins from which it is formulated, to resist breakdown by action to chemicals to which it is exposed.

Answer 32

chemical resistance