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HD-HR-8610TM high resilience cold cure moulding
PU foam systems
HD-HR-8610TM is double-component system specially designed for
manufacturing high resilience cold cure moulding PU products. B-component
is the mix of TDI and MDI, while A-component is made up of polyether
polyalcohol,blowing agent, catalyst and stabiliser,etc. The systems
has three kinds of brands.
 HD-HR8610TMH
is applied to products with higher hardness requirement, such as
motor and bicycle saddles, train seats and automobile seats and
headrests.
HD-HR8610TMM
is applied to products with medium hardness, such as automobile
seats, furniture chairs,etc.
HD-HR8610TML
is applied to products with low density and hardness, such as automobile
seat backrests, sofa backrests,etc.
Physical properties:
| A-component |
B-component |
| Item |
Index |
Item |
Index |
|
hydroxy content (MgKOH/g)
|
42¡À3 |
-NCO content(%) |
38-42 |
| viscosity(25¡æ)(MPa.s) |
800¡À200 |
viscosity(25¡æ)(MPa.s) |
6-30 |
| specific gravity(25¡æ)(g/cm3) |
1.091¡À0.05 |
specific gravity(25¡æ)(g/cm3) |
1.22-1.24 |
proportion of weight£ºHD-HR-8610TMH A:B=100:(36-43)
¡¡¡¡¡¡¡¡¡¡HD-HR-8610TMM A:B=100:(36-43)
¡¡¡¡¡¡¡¡¡¡HD-HR-8610TML A:B=100:(35-42)
reaction time£º£¨data of laboratory test, working temperature
at 25¡æ£©
| |
HD-HR-8610TMH |
¡¡HD-HR-8610TMM |
¡¡HD-HR-8610TML |
| CT£¨sec£© |
8-12 |
8-12 |
8-12 |
| GT£¨sec£© |
40-50 |
50-70 |
50-70 |
| DMT£¨sec£© |
240-480 |
240-480 |
240-480 |
Product Performance:
| Item |
HD-HR-8610TMH |
HD-HR-8610TMM |
¡¡HD-HR-8610TML |
Testing Method |
| Overall density(kg/m3) |
75-90 |
55-75 |
35-55 |
ISO845 |
| tensile strength(KPa) |
¡Ý100 |
¡Ý145 |
¡Ý100 |
ISO1780 |
| extensibility(%) |
¡Ý100 |
¡Ý130 |
¡Ý100 |
ISO1926 |
| tearing strength(N/m) |
¡Ý150 |
¡Ý200 |
¡Ý120 |
ASTMD3754 |
| fallen ball resilience(%) |
¡Ý60 |
¡Ý60 |
¡Ý55 |
ASTMD3754 |
| compressive strength 40%£¨N) |
¡Ý200 |
¡Ý150 |
¡Ý100 |
ISO2439 |
Sag index
£¨65/25£© |
¡Ý3.0 |
¡Ý2.8 |
¡Ý2.4 |
ISO2439 |
Packaging:Galvanized zinc metal parrel. A-component: 200kg/parrel;
B-component: 230kg/parrel.
Shelf life:A-component /6 months;B-component /3months
Note:HD-HR-8610TM series can provide systems of relative
brand according to products' detailed use and performance requirement
from clients. If users produce products with flame retardant, fire
resistant grades are required. Please contact Beijing Bora Polyurethanes
Co.,Ltd for more information about technology and business.
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