Font size
WorksheetsDay 1 Matrix and Reinforcing Fibres
Total questions: 12
Worksheet time: 6mins
Give an example of thermoset resin
Polyester
Polyethylene
Epoxy
Aramid
What is polymerization?
Hydrolysis process to remove monomers in chain of polymer, which is using water molecules for breakdown process
Small molecules, called monomers, combine chemically to produce a very large chainlike or network molecule, called a polymer
Process of adding catalyst or hardener into polymer to produce cross link resin
What is major type of polymerization process
Hydrolisis polymerization
Condensation polymerization
Addition polymerization
Subtract polymerization
What is the factor involves in curing process?
Weather
Temperature
Pressure
Time
Mass
What happen to thermoset when temperature increase during curing process?
Geltime increase
Geltime decrease
What happen to thermoset when reduce the mass during curing process?
Geltime decrease
Geltime increase
What is shelf life?
The expired date of resin
Uncured thermoset resin before geltime
The available time to process a reacting thermosetting formula.
An arbitrary time for practical storage of a thermoset system
What is pot life?
The available time to process a reacting thermosetting formula
The length of time from the date of manufacture or packaging
The available time storage at chemical store
The length of polymerization process to produce polymer
What happen to polymer or resin at B-stage in staging concept?
Mixing process
Crosslinking not yet begun
Progress
Crosslink finished
What is the copolymer
Polymerization of single monomer
Polymerization of a mixture of two monomers
Polymerization of different polymer
Polymerization of resin and matrix
What is the homopolymer?
Curing process of single monomer
Polymerization of single monomer
Polymerization of mix of mer
Crosslinking of different polymer
What is thermoset?
Plastic material that can be use as bottle, food cointainer and cutlery product
Crosslink polymer when expose to environment and heat
Can be reheated, remolded, and cooled as necessary without causing any chemical changes.
Hardened permanently after being heated once and cannot be recycled
