(14). Chain Extender
´ëºÎºÐÀÇ chain extender µéÀº polyol chain extenders À̰ųª
polyamine chain extenders ÀÌ´Ù. Ç¥ 2¿¡ ´ëÇ¥ÀûÀÎ °ÍµéÀÌ ÀÖ´Ù.
Ç¥. ¸î°¡Áö »ç½½ ¿¬ÀåÁ¦µé (some chain extenders).
|
À̸§ |
ÀÛ¿ë±â ¼ö(Functionailty) |
ºÐÀÚ·® Mole weight |
OH value (mg KOH/g) |
Weight of diisocyanate (g per 100g of required additive) |
|
|
TDI |
MDI |
||||
|
Ethylene glycol
|
2 |
62.07 |
1801 |
280 |
401 |
|
Diethylene glycol
|
2 |
106.12 |
1057 |
164 |
235 |
|
Propylene glycol
|
2 |
76.11 |
1474 |
229 |
329 |
|
Dipropylene glycol
|
2 |
134.18 |
836 |
130 |
186 |
|
1,4-Butane diol
|
2 |
90.12 |
1245 |
193 |
278 |
|
Polypropylene glycol 400 |
2 |
400 |
280 |
43.5 |
62 |
|
m-Phenylene diamine
|
2 |
108.15 |
1037 |
161 |
231 |
|
Water
|
2 |
18.01 |
6230 |
968 |
1389 |
|
Diethanolamine
|
3 |
105.14 |
1601 |
248 |
357 |
|
Triethanolamine
|
3 |
149.19 |
1128 |
175 |
252 |
|
Glycerol
|
3 |
92.11 |
1827 |
284 |
407 |
