High-temperature-endurance Epoxy Resin and Hardener
Introduction of product:
Due to the high rigidity of its molecule, high-temperature-endurance and good thermal resistance after being cured, especially the highest retention of properties at high temperature (compared with other novolac epoxy resins), CYDBN-240, 241 high-temperature-endurance epoxy resin can be used as a modifier for electric lamination, powder coating(with better reactivity), mould plastics, liquid insulation coating, engineering materials of various structure, reinforced plastics and its predipping embryo, thermal resistance adhesive and printing ink to increase their high-temperature-endurance, to produce higher glassfication point and crossing density for cured systems. As a result, the resistance to humidity, solvent and environment can be strengthened, the retention of intensity, rigidity, electric property and other performance at high temperature reinforced. When applied in predipping laminating materials, the highest retention of intensity at high temperature and thermal stability can be achieved. When used in epoxy resin plastics, a remarkable flow stability and shorter occupancy period of die are available.
As hardeners, CYDHD-240, 241, 245, 246 are able to overcome the
weakpoints of dicyandiamide and phenol linear novolac resin and meet the requirements of the technological development of copper clad lamination plates for excellent performance esp. for thermal resistance. They can be used as modifier and common hardener to increase the performance of the cured.
Executive standards:
Specifications：
No |
Brand |
Epoxy equivalent (g/eq) |
Hydrolysable chlorine, wt% ≤
|
Softening point
(℃) |
Viscosity (mPa•s25℃)
|
Volatile wt% |
Color (Gardner) ≤
|
*Free phenol content wt%
|
Solid content (180℃)
|
1 |
CYDBN-240 |
195~225 |
≤0.1 |
- |
9000±2000
(150℃) |
≤0.5 |
≤6 |
- |
- |
2 |
CYDBN-241 |
195~225 |
≤0.1 |
- |
1200±400
(25℃) |
30±1.5 |
≤6 |
- |
- |
3 |
CYDHD-240 |
- |
- |
100~110 |
- |
- |
- |
≤20 |
≥99.5 |
4 |
CYDHD-241 |
- |
- |
100~110
(solid) |
5000±1000
(25℃) hoppler kinematic viscosity |
- |
- |
≤20 |
65±2
(MEK solution) |
5 |
CYDHD-245 |
- |
- |
115~125 |
- |
- |
- |
≤20 |
≥99.5 |
6 |
CYDHD-246 |
- |
- |
115~125
(solid) |
5000±1000
(25℃) hoppler kinematic viscosity |
- |
- |
≤20 |
65±2
(MEK solution) |
Note 1: All the items marked with hoppler viscometer are kinematic viscosity, by standard DIN 53015 ISO9371.
Note 2: Measuring conditions of solid content: 180℃, 1hour, 75mm flat bottom vessel, 3g sample.
Note 3:* The item shall be re-measured at the request of customers
Applied standards in analysis:
- Q/SH 1085 134-2006measurement methods of epoxy equivalent of epoxy resin
- Q/SH 1085 135-2006measurement methods of hydrolysable chlorine of epoxy resin
- Q/SH 1085 136-2006measurement methods of inorganochlorine of epoxy resin
- Q/SH 1085 137-2006measurement methods of softening point of epoxy resin
- Q/SH 1085 140-2006measurement methods of melting viscosity of epoxy resin
- Q/SH 1085 141-2006measurement methods of volatile of epoxy resin
- Q/SH 1085 142-2006measurement methods of color of epoxy resin
|
