Substitution af phthalatblødgjort PVC-vandmadras hos Akva Waterbeds

Bilag A
Kravspecifikationer

Kravspecifikationer der blev opstillet som udgangspunkt da der skulle findes et alternativt substitutionsmateriale til PVC-folien.

Key issues and numbers for watermattress material:

High resistance toward bacteria growth

 

Flex at low power and the material must come back

Flexing power less than 16 MPa [N/mm².] Close to linear flex/length curve. More than 3 times flex before braking

Soft hand as the PVC we use now, surface mat with no abrasion

60 Shore A

Low water penetration

less than 0.46 g/(h*m²) - (0,5 mm. PVC, 38°C,0-90% RH)

Pin holes sensitivity must be much higher than PVC

 

Life expectancy in use as watermattress (0,56 mm).

10 - 12 years

Can be sealed by RF (If not possible, then Ultrasound)

 

Material with

> 2350 mm

Stabile on moderate temperatures

0 - 65 ° C


Akva Waterbeds ApS