Bi-component Heat Resistant Epoxy Resin with Excellent Splitting Resistance for Electrical Insulation and Liquid Casting

Bi-component Heat Resistant Epoxy Resin with Excellent Splitting Resistance for Electrical Insulation and Liquid Casting

Property
Bi-component Epoxy resin system /Liquid can be processes of APG&Conventional casting process undervacuum.Excellent splitting resistance &heat resistance TG:90-110℃.

Application process recommendation

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Shanghai Wenyou Industry Co., Ltd.

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Name: Bicomponent Heat Resistant Epoxy Resin with Excellent Splitting Resistance for Electrical Insulation and Liquid Casting
Brand: wenyou
Price: 1 USD

China Bi-component Heat Resistant Epoxy Resin with Excellent Splitting Resistance for Electrical Insulation and Liquid Casting wholesale

CAS No. : 1675-54-3

Brand Name : wenyou

Place of Origin : Shanghai, China

Classification : Double Components Adhesives

EINECS No. : 216-823-5

Main Raw Material : Epoxy

MF : C21H24O4

Other Names : Epoxy resin potting compound

Type : Liquid

Usage : electrical insulation and transformer

Model Number : 9217F

Color : Light Yellow

MOQ : 50

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Product Description

Formulation:

Epoxy resin	LE-9217F	100pbw
Hardener	LH-9217F	100pbw
Filling	Silica flour(SIO2)	300-380pbw
Color paste	LC-series	3pbw

Process Condition

Mechanical and physical properties

Properties	Value	Properties	Value
Tg（DSC）	75-95℃	Thermal conductivity	0.8-0.9W / mk
Tensile strength	65-85N/mm2	Thermal decomposition	＞320℃
Flexural strength	100-140N/ mm2	Water absorption (23℃×10days)	0.10-0.20 % by wt.
Compressive strength	140-180N/ mm2	Water absorption (100℃×60 mins)	0.08-0.15 % by wt.
Impact strength	9-16kJ/ m2	Surface resistivity	1014Ω
Curing shrinkage	0.8-1.0%	Volume resistivity	1015Ω.cm
Flammability（4mm）	HB Class	Dielectric strength	30 kV / mm
Flammability（12mm）	HB Class	Loss factor	0.02

Gelation times

Producing Process

1. Preparation of ingredients

1.1 The casting mold should be preheated in the oven at 100-110 ° C for more than 10 hours, and above 4000kva transformer coil
shall be given a longer preheating time,
To ensure that the coil is completely dry and its temperature is not less than 80 ° C when installed.
1.2 The silica powder shall be sealed to normal temperature for more than 6 hours in an oven at 110-120 ° C.

2. Ingredients

2.1 Static mixture degassing
2.1.1 Premixing
Material A (epoxy) is based on weight ratio, resin: filler: color paste 100:(125-color paste amount)：proper amount, and mixed
separately after adding resin, filler and color paste,
The temperature is 65-70 ℃, stirring and degassing for no less than 2 hours, and 100 < p < 200pa.
Material B (curing agent) is based on the weight ratio, curing agent: filler 100:125, mixed separately, temperature is 65-70 ℃,
stirring and degassing are not less than 2 hours, 100 < p < 200pa.
2.1.2 Final mixing
Then the components A and B are finally mixed， the accelerator agent is not needed, and put material A and B are mixed in the
proportion of 100:100 into (or vacuum suction) final mixing tank, and in order to stir well, we advise put the resin and hardener
at same or alternate time
2.1.3 Start stirring after feeding,make sure the the spiral lifter can lift the mixture onto the umbrella degassing hood at its
rotate speed
2.1.4 After stirring for 15 minutes, start the vacuum pump for degassing. The vacuum degree shall not be less than 300pa
2.1.5 The mixing degassing time is about 15-30 minutes, and the degassing is completed when there is no bubble on the umbrella
surface

3. Casting

3.1 Set the casting tank temperature at 80-85 ℃, preheating shall start 4-5 hours before batching, and to ensure that the
temperature of the mold during installation is not less than 80 ° C

3.2 After batching, the dried and preheated mold is pushed into the casting tank for vacuum treatment

3.3 The space temperature of the casting tank is 80-85 ° C, the vacuum degree is not less than 300pa, and the vacuum treatment
time is not less than 2 hours

3.4 , The feeding should not be too fast during casting. It can be stopped for 10-15 minutes, and the vacuum can be continued for
20-30 minutes after the material is full. If possible, it can be pressurized by 0.2-0.3mpa after vacuum treatment

3.5 The final mixing casting shall be completed within 90 minutes. Please strictly control the temperature and time to prevent
tank solidification. The excess single component resin and curing agent can be stored for several days, but it must be sealed and
the temperature should be well controlled.

Storage

The components have to be stored in tightly sealed and dry original containers in an
environment at 6~35℃;. Under these conditions, the shelf life will correspond to the expiration date stated on the label (
normally 12 months). After this date, the product may be reanalyzed to confirm if it validates yet. Partial emptied containers
should be closed tightly immediately after use.

First Aid

Contamination of eyes by resin, hardener of casting mix should be treated immediately by
flushing with clean,running water for 10 to 15minutes, a doctor should then be consulted.
Material smeared or splashed on the skin should be dabbed off, and the contaminated area then washed and treated with a cleaning
cream. A doctor should be on the event of severe imitation of burns. Contaminated clothing should be changed immediately. Anyone
taken ill after inhaling vapors should be moved out of doors immediately,in all case of doubt call for medical assistance.

Product Paramenters

Bi-component Heat Resistant Epoxy Resin with Excellent Splitting Resistance for Electrical Insulation and Liquid Casting

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Properties	Unit	Value	Unit	Value
Appearance	Visual	Transparent viscous liquid	Visual	Light yellow- yellowish liquid
Viscosity at 25℃	mPa.s	7500-12000	mPa.s	300-600
Density at 25℃	g/cm3	1.16-1.20	g/cm3	1.17-1.24
Vapour Pressure at 25℃	Pa	﹤0.01	Pa	about 0.5
Flash point	℃	about 135	℃	about 140

Mechanical and physical properties

Properties	Value	Properties	Value
Tg（DSC）	75-95℃	Thermal conductivity	0.8-0.9W / mk
Tensile strength	65-85N/mm2	Thermal decomposition	＞320℃
Flexural strength	100-140N/ mm2	Water absorption (23℃×10days)	0.10-0.20 % by wt.
Compressive strength	140-180N/ mm2	Water absorption (100℃×60 mins)	0.08-0.15 % by wt.
Impact strength	9-16kJ/ m2	Surface resistivity	1014Ω
Curing shrinkage	0.8-1.0%	Volume resistivity	1015Ω.cm
Flammability（4mm）	HB Class	Dielectric strength	30 kV / mm
Flammability（12mm）	HB Class	Loss factor	0.02

Producing Process

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Applications

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Processing parameters

Vacuum casting

Epoxy resin / hardener mixture temperature

Premix 70°C/2h + final mix 15-30mins

Feeding process

Mold temperature

Gelation time

80℃/6h+90℃/4h +100℃/2h+120℃/2h

Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.

Casting Process

Company profiles

Our company

Shanghai Wenyou Industry Co., Ltd. is a professional epoxy resin company in
Fengxian,Shanghai, China, specializing in the manufacturing, R&D, and sales of epoxy resin, curing agents, and related products.
Our wide range of products includes epoxy resin, flame retardant resin, curing agents, outdoor modifiers, toughening agents, epoxy
paste, demoulding agents, and fillers. Our high-quality products are used in high voltage electrical insulation applications and
are exported globally. We are committed to providing stable products and excellent service to the global electricity industry.

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