Dolphon®CB-1054

Dolphon®CB-1054polybutadiene casting resin

describe

is A kind of black, thixotropy, flexible polybutadiene casting resin.

performance

at room temperature curing, and curing shrinkage rate is very low.

In the humid environment also keep good electrical performance. In addition to having good flexibility, can also on a variety of surface adhesion.

The processing of the filling of liquid resin, will not be wear and tear. Has excellent abrasion resistance environment, such as dust or ice particles.

application

Dolphon®CB-1054 commonly used in motor, transformer, generator windings of casting potting, usually used in the motor and transformer under 130 ℃. Also can be used in the electronics field.

standard

Using temperature is 130 ℃

Accordance with the requirements of the RoHS - 2011/65 / EC.

Standard color is black.

Placing conditions

In a completely sealed original tank, in the storage temperature is not higher than 25 ° C, resin and curing agent can hold up to 12 months. Because of resin and curing agent on the sensitivity of the humidity, can deposit.

Method of use

If casting resin consumption faster, can join again in warm resin curing agent CB 1128 B. Other cases need to cool to room temperature, so not shorten the mixing time. A mixture, resin, curing agent and prepared to avoid be affected with damp be affected with damp. The temperature of the workshop can not less than 18 ° C.

Need to pay attention to, casting the workpiece surface is dry. Need to slowly heated to remove water (for example, 50 ℃) an hour, otherwise the resin in the curing process to form bubbles.

The addition of CB 1128 B need according to the regulation of mixed proportion. Gently stir until mixture evenly to avoid air bubbles. Preheat curing agent can be mixed to slightly easier.

The abrasive polybutadiene casting resin CB 1128 can be used in a vacuum or not in the ratio of mixing equipment and equipment of vacuum.

curing

Curing is the need to keep the environment relative humidity is low, especially when very thin coating. Needs to be done at room temperature, curing or slightly higher than the room temperature (about 40 ℃). Electronics and machinery of abrasive materials need at least 48 hours at room temperature (low temperature 20 ℃).

The work equipment clean

Because of the cured resin was actually insoluble, equipment and processing equipment needs in a timely manner with Voltatex ® 5050 clean.

Protection measures

No biological activity after curing of CB 1128, harmless to the human body. In dealing with a liquid resin using conventional protection measures: see dupont and ec safety data sheet and chemical industrial insurance association rules M 044.

Technical data

Numerical test method of unit conditions

The mechanical

Shaw hardness after D around 20 ℃ (45 + / - 5)

Numerical test method of unit conditions

electrical

Breakdown voltage kV/mm 23 ℃ 26 kV/mm according to IEC 60243-1-0.025 mm

Volume resistance 23 ℃ Ω * cm 23 ℃ acuity 1015 Ω forced the cm ASTM D - 257

Specific Volume to hold, at 20 ° C Ω * cm 25 ℃ or higher 1014 Ω forced the cm ASTM D - 257

Dielectric constant of 25 ℃ 50 Hz 3.3 ASTM D - 150

Loss coefficient of 25 ℃ 50 Hz or less 10-3 31 forced the ASTM D - 150

Unit value detection method

thermodynamics

Temperature index and 40 ° C / + 150 ° C Oliphant Test

Thermal conductivity is 0.42 W/(m forced the K) - 1

Glass transition temperature of 60 ℃ or less DSC

Unit value detection method

The liquid phase

Mix ratio of 100:6 weight - %

The mixture 80000/120000 mPa • s Brookfield viscosity 25 ℃

Tank for (+ 5) for 45 min 20 ℃ (100 g) sample

Gel time 15 min min 25 ℃

Curing time of 48 h/RT or 6 h/RT + 3 h / 80 ° C

The impact on the enameled wire is compatible with all common enameled wire

Mixture density (1.1 + 0.05) g/cm after

Volume contraction < 0.01%

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