Different materials have different triboelectric (static electric) qualities.
Tribo = rubbing
Rubbing a material that gives up electrons against one that takes up electrons will cause the latter to become negatively charged and potentially able to discharge static electricity.
Rubbing a material that has a higher rank for taking up electrons against one with a lower rank in the series will cause it to develop a negative charge while the lower ranked one will become more positively charged.
Materials that develop little or no charge:
(1) cotton
(2) steel
Materials Positively Charged (Gives Up Electrons) |
Rank |
paper |
1 |
aluminum |
2 |
silk |
3 |
cat's fur |
4 |
lead |
5 |
wool |
6 |
nylon |
7 |
human hair |
8 |
mica |
9 |
quartz |
10 |
glass |
11 |
rabbit's fur |
12 |
leather |
13 |
dry human skin |
14 |
air |
15 |
Materials Negatively Charged (Takes Up Electrons) |
Rank |
wood |
1 |
Lucite |
2 |
sealing wax |
3 |
acrylic |
4 |
polystyrene |
5 |
rubber balloon |
6 |
resins |
7 |
hard rubber |
8 |
nickel or copper |
9 |
sulfur |
10 |
brass or silver |
11 |
gold or platinum |
12 |
acetate or rayon |
13 |
synthetic rubber |
14 |
polyester |
15 |
styrene (Styrofoam) |
16 |
orlon |
17 |
plastic wrap |
18 |
polyurethane |
19 |
polyethylene (Scotch tape) |
20 |
polypropylene |
21 |
vinyl, PVC |
22 |
silicon |
24 |
Teflon |
25 |
silicone rubber |
26 |
ebonite |
27 |