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Bismaleimide Resin

Bismaleimide Resin
Bismaleimide Resin
Product Code : 03
Brand Name : ABRON - BR 720
Product Description

Our enterprise has gained immense recognition by manufacturing, exporting and supplying superior grade Bismaleimide Resin. This resin is processed with high precision under the stern supervision of our adroit professionals by making use of the best grade chemical substances. It is a mixture of epoxy resin that is widely used in printed circuit boards. Further, this Bismaleimide Resin can be availed from us in varied packaging options and at economical prices.

Features:

  • Accurate composition

  • Safe to use

  • High reactivity

  • Precise pH value

Typical Physical Properties of ABRON BR 720

RESIN Uncured Resin

 Appearance

 Melting point(
0C)

 DSC Exotherm peak
 temperature,(
0C)

 Bulk polymerization energy, J/g

 Yellow

 ~ 80 - 90
0C

 260
0C


 > 180
0C

 CURED RESIN

 Colour
 Mechanical Properties
 Tensile strength, psi
 Tensile modulus, psi
 Flexural strength, psi
 Flexural modulus, psi
 Flexural strain to failure, % Fractural   energy, in.-ib/in.
2
 Glass transition temperature,
0C

 Brown
 6-12 x 10
3
 6-7 x 10
5
 11-21 x 10
3
 5-7 x 10
5
 1.3-2.3
 0.14-0.19

 230-290


PROPERTIES OF ABRON BR-720 LAMINATES

Testing Standard

BS 3953 PI - 1

Reinforcement

Glass Fabric

Resin

Polyimide

Colour

Dark Brown


Mechanical Properties

Felxural Strength (ISO 178),

1 2000C

500 MPa 360 MPa

Modulus of Elasticity (ISO178)

1

25,000 MPa

Compressive Strength (ISO 604)

1

650 MPa

Izod Impact Test (ISO 180/2A)

1

55 kj/n2

Shearing Strength (EN 60893-2)

1

70 MPa

Tensile Strength (ISO 527)

1

300 MPa


Electrical Properties

Electric Strength (IEC 243-1)

2

20 kv/mm

Permittivity (IEC 250)

3

4.0 at 50Hz.

Dissipation Factor (IEC 250)

3

0.01 at 50 Hz.

Insulation systems (IEC 167)

4

1000 M ?

Comparitive Tracking Index (IEC 112)

1

250 CTI


PHYSICAL AND THERMAL PROPERTIES

Thermal Indurance Index, 20,000 hrs. (IEC 216)

-

180 - 2400C

Flammability (IEC 707)

1

FV 0

Density (IEC 1183-A)

1

1.95 gm/cm3

Water absorption (IEC 62-1)

4

15 mg.


Conditioning:

  • 24h/230C/ 50% RH.

  • 24h/230C/50% RH + 1h in oil at 900C.

  • 96h/1050C + 1h/230C/20% RH.

  • 24h/500C + 24h in water at 230C.

  • 96h/1050C + 1h in oil at 900C.

GENERAL METHOD OF PREPARATION OF LAMINATES

  • Prepare a 45 - 50 % solution of ABRON BR720 in dry NMP/ DMF/ DMAc.

  • Use this solution to impregnate glass-fiber fabrics and then dry at 1600C for 10 minutes to obtain a B-stage prepreg.

  • Stack required number of the B-stage prepregs between aluminium foils / mylar sheets.

  • Place the stack between heated press plates at a temperature of 1200C.

  • Immediately apply a pressure of 210 psi to 800 psi depending upon the thickness.

  • Increase the temperature progressively to 1800C in 30 minutes for stack not thicker than 3/8 in.

  • Cure the laminate at 1800C for 1 -2 hrs.

  • Remove the laminate from the hot press at 1000C and post cure it for 16 - 24 hours at 2500C.



ABR ORGANICS LIMITED

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Contact Details
ABR ORGANICS LIMITED
A-3, Sri Madhava Apartments, 2-2-23/41/4 & 5, Bank Colony, Bagh Amberpet,Hyderabad - 500013, Telangana, India
Phone :+917210130119
Fax :91-40-27426059
Mr. K. Naveen Chandra (Joint Managing Director)
Mobile :+917210130119