A and polyurethane are available for modern Wound care and application of negative pressure wound therapy techniques. The combination of the two results in excellent breathability, an important property in exudate management in high-end wound dressings. The adhesive layer achieves a high water vapor transmission rate without the need for perforation. The adhesive is applied directly to the film, eliminating the need for additional production steps such as transfer coating or lamination.
Key features of adhesives made withA:
·Adjust the component ratio, you can Easily customize the peel strength of the adhesive
·Low trauma when unraveling, Non-stick hair
A Main features of combination with film:
·Excellent air permeability
·Improve processing efficiency
·Film matt surface (PEcontact surface)
two-component adhesive
Features |
AI 12 |
NCOcontent |
12.3-13.3% |
Viscosity (23℃) |
3 ,300-4,700mPa.s |
Solvent |
none |
monomer content |
≤0.39% |
Features |
AR35 |
OHquantity |
32.5-37.5mg KOH/g |
Viscosity (25 ℃) |
900-1,1 00mPa. s |
Solvent |
none |
acid value |
≤0.04mg KOH/g |
polyurethane film
Features |
VPT 9101 T |
||
water vapor transmission rate |
approximately1,900g/(day.㎡) |
||
tensile stress at break |
33MPa |
||
50tensile stress at % strain |
3-6MPa |
||
tensile strain at break |
㎡) |
TFHC g/(day.㎡) |
|
VPT 9101 TFilm |
25μm |
~1,900 |
~3,900 |
Product |
Thickness |
MVTR g/(day.㎡) |
TFHC g/(day.㎡) |
A |
55μm |
~3,200 |
~10,000 |
A |
~100μm |
~2,500 |
~6,000 |
~10,000
A
~100μm
~2,500
~6,000