Products
High Performance Kraft Paper for Copper-clad Laminate
Application:
Kraft paper, immersed in Phenolic resin, is used to produce laminates. It could also be immersed in epoxy resin and combined with glass fabric to become high-end glass fabric substitute.
Product Specification:
Code |
Item |
Unit |
Specification |
|||
120g |
128g |
135g |
||||
1 |
Weight |
g |
120±3 |
128±3 |
135±3 |
|
2 |
Thickness |
mm |
0.235±0.015 |
0.265±0.020 |
0.270±0.020 |
|
3 |
Density |
g/cm3 |
0.49±0.03 |
|||
4 |
Quantitative Bias |
g/m2 |
≦3.0 |
|||
5 |
Tensile Strength |
Length |
kN/m2 |
2.35 |
2.40 |
2.55 |
Width |
kN/m2 |
1.80 |
1.85 |
1.90 |
||
6 |
Length/Width Strength Ratio |
1.20--1.50 |
||||
7 |
Water Absorption |
Length |
mm/10min |
85±10 |
||
Width |
mm/10min |
85±10 |
||||
8 |
Permeability of Castor Oil |
Front |
S |
8±3 |
9±3 |
10±3 |
Back |
S |
11±3 |
11±3 |
12±3 |
||
9 |
Metallic and Other Dye(>2.0mm3) |
Not permitted |
||||
10 |
Strength of Heated Wet Paper |
Length |
kN/m2 |
≧0.30 |
≧0.35 |
≧0.40 |
Width |
kN/m2 |
≧0.26 |
≧0.30 |
≧0.35 |
||
11 |
Ash Content |
% |
≦0.7 |
|||
12 |
PH Value |
7±0.5 |
||||
13 |
Elongation |
Length |
% |
1.2±0.3 |
||
Width |
% |
2.3±0.5 |
||||
14 |
Moisture |
% |
≦5.5 |