glass & plastic Flashcards
1
Q
constituents and characteristics of glass
A
calcium oxide, sodium oxide, silica phosphorous
temp - 1400-1500
brittle, bad heat conductor
2
Q
flint glass use
A
potash lime glass used in laboratories
3
Q
potash lead glass use
A
electric bulbs
4
Q
bulb sheets, window glass, glass bottles
A
crown glass
5
Q
lens, radio bulb pots pans
A
flint glass
6
Q
mirrors
A
plate glass
7
Q
used in doors and windows
A
soda lime glass
8
Q
a mixture of cement and asphalt
A
plastic asphalt
9
Q
ingredients added to plastic to improve strength and hardness are
A
fillers
10
Q
bakelite is used as a
A
insulating material
11
Q
coloring pigments are added in glass at the stage of
A
fusion
