This product is the raw material before the Teflon woven glass fabric copper-clad laminates. Dipping the Teflon dispersion liquid on the alkali-free woven glass fabric, after drying, baking and sintering, the microwave dielectric material is formulated. This product is characterized by some features, such as heat-resistantance, insulation, low loss, excellent electrical performance, inadhesion, and is extensively used in some areas, such as electronics, motor, aviation, textile, chemical and food industry, etc.. In the area of microwave devices, it can be used as the bonding layer between multi-layer PCBs.
(1) Types of materials
- Teflon woven glass fabric anti-sticking cloth£ºF4B-N
- Teflon woven glass fabric Insulating cloth£ºF4B-J
- Teflon woven glass fabric Ventilated cloth£ºF4B-T
(2) Technical specifications
Appearance |
Smooth and neat surface, uniform glue discharge, no crack and mechanical damage. |
Dimensions |
Length |
A£½1¡«50m |
Width |
B£½900mm¡«1270mm |
Thickness
¦Ä£¨mm£© |
F4B-N (anti-sticking) |
F4B-J( Insulating) |
F4B-T(Ventilated) |
0.08 |
0.10 |
0.15 |
0.40 |
0.1 |
0.15 |
0.24 |
0.04 |
0.07 |
Tolerance |
¡À0.01 |
¡À0.02 |
¡À0.03 |
¡À0.04 |
¡À0.01 |
¡À0.02 |
¡À0.05 |
¡À0.004 |
¡À0.005 |
Mechanical, chemical, electrical properties |
Names |
Test conditions |
Unit |
Specifications |
Tensile-strength |
Tensile machine |
Kg/cm2 |
1000 |
Operating temperature |
In the oven |
¡æ |
250¡æ for long-term usage£¬300¡æfor discontinuous usage |
Chemical properties |
Dip in the acid, alkali and sodium |
|
All inert |
Surface resistivity |
Normal temperature |
¦¸ |
¡Ý1012 |
Volume resistance coefficient |
Normal temperature |
¦¸.cm |
¡Ý1013 M¦¸cm |
Breakdown voltage |
¦Ä=0.8 |
KV |
¡Ý0.6 |
|
¦Ä=0.1 |
KV |
¡Ý0.8 |
|
¦Ä=0.15 |
KV |
¡Ý1.1 |
|
¦Ä=0.20 |
KV |
¡Ý1.3 |
|
¦Ä=0.40 |
KV |
¡Ý1.5 |
Permittivity |
1GHZ |
¦År |
2.7¡À0.1 |
Dielectric loss angle tangent |
1GHZ |
tg¦Ä |
¡Ü2¡«5¡Á10-4 |
|
