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¡¡¡¡¡¡¡¡HD-DB-150 High temperature resistant rigid PU foam systems
HD-DB-150 is double-component PU foam system specially designed
for high temperature resistant(150¡æ) thermal insulation. B-component
is modified polyisocyanate(MDI), while A-component is made up of
polyether polyalcohol, blowing agent,catalyst and stabiliser,etc.
It is featuring of long-term high temperature resistant(150¡æ), applied
to the pipe insulation and disinfection cabinet. It has two kinds
of brands.
 HD-DB-150F,
rapid reaction, applied to handy injection with a little input each
time.
HD-DB-150S,
slow reaction, applied to large sized pipe with much input each
time.
Physical properties:
| A-component |
B-component |
| Item |
Index |
Item |
Index |
|
hydroxy content (MgKOH/g)
|
450¡À50 |
-NCO content(%) |
30-33 |
| viscosity(25¡æ)(MPa.s) |
800¡À200 |
viscosity(25¡æ)(MPa.s) |
200¡À40 |
| specific gravity(25¡æ)(g/cm3) |
1.21¡À0.05 |
specific gravity(25¡æ)(g/cm3) |
1.235¡À0.02 |
Proportion of weight£ºA£ºB=100£º£¨180-200£©
Reaction time£º£¨data of laboratory test, working temperature at
25¡æ£©
| Reaction Time |
HD-DB-150F |
HD-DB-150S |
| CT£¨sec£© |
15¡À5 |
35-45 |
| GT£¨sec£© |
55¡À10 |
165-210 |
| RT£¨sec£© |
65¡À10 |
250-300 |
| DMT£¨sec£© |
180¡À60 |
900-1200 |
Foam Performance:
| Item |
HD-DB-150F |
HD-DB-150S |
Testing Method |
| core density(kg/m3) |
45-55 |
55-65 |
GB6343-86 |
| free density(kg/m3) |
25-35 |
25-30 |
GB6343-86 |
| compressive strength(MPa) |
¡Ý0.20 |
¡Ý0.20 |
GB8813-88 |
| thermal conductivity(W/m.K) |
¡Ü0.025 |
¡Ü0.025 |
GB10294-88 |
| closed cells content (%) |
¡Ý92 |
¡Ý92 |
ISO DIS4590 |
| dimensional stability(150¡æ/96h)(%) |
¡Ü3 |
¡Ü3 |
GB8811-88 |
| water absorption(%) |
¡Ü3 |
¡Ü3 |
GB8810-88 |
Packaging:Galvanized zinc metal barrel. A-component: 200kg/barrel;
B-component: 250kg/barrel.
Shelf life: 6 months
Note:HD-DB-150 series can provide systems of relative brands according
to products' detailed use and performance requirement from clients.
Please contact Beijing Bora Polyurethanes Co.,Ltd for more information
about technology and business.
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