Filter Material for PU Air Filter
Filter Material for PU Air Filter
Quantity:
Feature:
1. Hotmelt gluing is known as hot melt adhesive glue , is an important bonding technology.
2. Hot melt glue adhesive are solid at room temperature and turn into a viscous liquid when heated. The liquid adhesive is applied to the surfaces of the materials to be bonded. As it cools and solidifies, it forms a strong bond between the materials, achieving the purpose of bonding.
3.hot melt material has a short curing time. Once the hot melt adhesive is applied to the filter paper materials, hot melt pur adhesive can solidify and bond rapidly at room temperature, which significantly improves production efficiency.
4. PU glue, short for polyurethane glue, is a type of adhesive with unique properties and wide applications.
5. PU glue is mainly composed of polyol and isocyanate. The polyol component contains multiple hydroxyl groups, while the isocyanate component has isocyanate groups. These two components react chemically to form a polyurethane polymer, which provides the adhesive properties.
6.The cured PU glue has good flexibility and can withstand certain degrees of deformation and vibration without easily cracking or detaching.
7.It is widely used to making PU air filters.
Items | Part A | Part B | |
Before curing | Appearance | white | brown |
Viscosity（mPa.s） | 22000±5000 | 200±50 | |
Density（g/cm3） | 1.70±0.05 | 1.22-1.25 | |
Use ration by weight A:B | 6：1 | ||
Specification | Viscosity after mixing （mPa.s） | 3500±500 adjustable | |
Operation time（min，25℃） | 30 adjustable | ||
Turnover time（min，25℃） | 150 adjustable | ||
Curing time(h，25℃) | 24 | ||
After curing | Light yellow | ||
Shear strength（N/mm） | 19.85 | ||
Max peel force（N） | 990.63 | ||
Max peel strength（N/mm） | 99.06 | ||
Average peel force（N） | 717.77 | ||
Average peel strength（N/mm） | 71.78 | ||
Min peel force（N） | 455.87 | ||
Min peel strength（N/mm） | 45.59 | ||
