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HD-AW-8880 Imitation wood PU foam systems
HD-AW-8880 is double-component rigid PU foam system specially designed
for manufacturing imitation wood PU products. B-component is modified
polyisocyanate(MDI), while A-component is made up of polyether polyalcohol,blowing
agent,catalyst and stabiliser,etc. HD-AW-8880 has two kinds of brands.
 HD-AW-8880H
is applied to imitation wood PU products with higher hardness and
density, such as furniture-bed frames, chairs and desks, windows
and doors, furnitures and construction ornaments.
HD-AW-8880M
is applied to imitation wood PU products with medium hardness and
density, such as indoor decorative bars,imitation plate, art relief,
artwares and toys.
Physical properties:
| A-component |
B-component |
| Item |
Index |
Item |
Index |
|
hydroxy content (MgKOH/g)
|
400¡À50 |
-NCO content (%) |
30-33 |
| viscosity(25¡æ)(MPa.s) |
800¡À100 |
viscosity(25¡æ)(MPa.s) |
200¡À40 |
|
specific gravity
(25¡æ)(g/cm3)
|
1.180¡À0.05 |
specific gravity
(25¡æ)(g/cm3) |
1.235¡À0.02 |
proportion of weight£º HD-AW-8880H A£ºB=100£º£¨100-200£©
¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡HD-AW-8880M A£ºB=100£º£¨100-110£©
reaction time£º£¨data of laboratory test, working temperature
at 25¡æ£©
| reaction time |
HD-AW-8880H |
¡¡¡¡HD-AW-8880M |
| CT £¨sec£© |
30-35 |
28-32 |
| GT £¨sec£© |
80-105 |
65-72 |
| RT £¨sec£© |
100-110 |
95-102 |
| DMT £¨sec£© |
480¡À60 |
300¡À60 |
Foam Performance:
| Item |
HD-AW-8880H |
¡¡HD-AW-8880M |
Testing method |
| moulding density(kg/m3) |
250-400 |
160-250 |
ISO845 |
| freedom density(kg/m3) |
120-200 |
90-120 |
ISO845 |
| product shrinkage ratio(%) |
0.4-0.6 |
0.5-0.7 |
--- |
| Surface hardness(ÉÛÊÏD) |
35-55 |
25-45 |
ASTMD2240-68 |
|
High-temperature resistance
(¡æ)
|
70-110 |
70-110 |
ASTMD648-56 |
| breaking strength(MPa) |
20-25 |
25-30 |
ASTMD790-71 |
| thermal conductivity(W/m.K) |
0.07-0.08 |
0.06-0.07 |
ISO2582 |
Packaging:Galvanized zinc metal barrel packag. A-component:
200kg/barrel; B-component: 250kg/barrel.
Shelf life:6 months
Note:HD-AW-8880 series can provide various systems of relative
brand according to products' detailed use and performance requirement
from clients. If users would like products with flame retardant,
the grades of fire resistance are required. Please contact Beijing
Bora Polyurethanes Co.,Ltd for more information about technology
and business.
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