Phenolic Resin

ABRON ABG 2160 is a phenolic resin specifically developed for the manufacture of Ballistic composites. This resin is used to formulate prepregs for aerospace and defense applications. Typical application of these prepregs is to manufacture :

• Combat Helmets
• Vehicle Armours
• Rigid Body Armours
• Ballistic Shields

ABRON BPR- 108 is a modified resol type of phenolformaldehyde resin specially developed for the use in ablative applications. This grade of phenolic resin produces High Char Yield at 8000C ( ~ 71 – 74% ) highly suitable for prepreging of carbon fabric, which finds application in ablative liners for space, aerospace & defense applications.

APPLICATIONS : Aerospace & Space applications.

ABRON PGR 1350 resin system has been developed foruse in the manufacture of pultruded composites. ABRON – PGR 1350 is resol type phenol formaldehyde resin with very good wettability. With the addition of 6 – 9 % of the catalyst there is an enhancement of processing speed and the improvement of mechanical properties of the pultruded part. The developed catalyst is easy to handle and has adequate shelf life.

TYPICAL CHARACTERISTIC PROPERTIES OF COMPOSITES :

• Good flame resistance.
• Low smoke properties.
• High strength and modulus properties.

ABRON PGR 1350 is compatible with glass roving and mats. This system can be used on standard polyester pultrusion processing equipment, without any changes in the system itself. The die temperatures should be maintained in the range of 180 – 230°C. 

The speed of pultrusion would depend upon the shape and thickness of the pultruded profile. 

ABRON PNR 18 is resol type of phenolic resin system based on modified phenolic resin and reactive elastomers. This resin is the best sealent coat resistant to organic solvents and having excellent binding property between

• Metal to metal
• Metal to non–metal
• Non–metal to non–metal 

ABRON - PR100 (SL) has been developed exclusively for aerospace and space application. ABRON - PR100 (SL) is solventless resol type phenol formaldehyde resin with very good wettability and high flow. Extended shelf life for ABRON - PR100 (SL) is achieved by terminating the probable chain extending species to the maximum extent. The oxidative stability of ABRON - PR 100 (SL) is superior to novolak resin, as the number of reactive hydroxyl groups in the polymer chain are less compared to the novolak resins. It is an established fact that resol type of phenol formaldehyde resins are used in space & aerospace applications. 

ABRON - PR 100 (SL) offers the following distinct advantages over conventional solvent-based phenolic resins :

• It has a long shelf life of 2-3 months when stored at cooled conditions.
• The total solid content in the resin is 70-75% (w/w polymer).
• It is highly compatible with glass, silica, carbon and aramid fibres/fabric, etc.
• Void free components/composites are realised by using ABRON - PR 100 (SL)
• The cure cycle of ABRON - PR 100 (SL) is the same as that of any ordinary solvent based resol type phenolic resin. The unique property of ABRON - PR 100 (SL) is that graphatization occurs at temperatures 600C and above. This graphitization helps to build up the mechanical properties of the composites/components at elevated temperatures. Hence the components/composites of ABRON -PR 100 (SL) have better properties at 600C and above as compared to these components/composites realised from other resins.
• ABRON - PR 100 (SL) is an import substitute, used in liquid engine rocket nozzles.
• ABRON - PR 100 (SL) is characterised by high solid resin content, high char yield, good ablative properties & high gel time.

APPLICATIONS : ABRON - PR 100 (SL) can be used as a resin matrix for fiber reinforced composites. It is also used in the manufacture of resin bonded magnesia-carbon and alumina–carbon refractory bricks. It is also useful in the manufacture of tap hole masses of blast furnaces.

ABRON - PR100 (WS) is resol type of phenolformaldehyde resin specially developed for the use in ablative applications. This grade of phenolic resin is highly suitable for prepreging of carbon fabric, which finds application in ablative liners for space, aerospace & defense applications. 

APPLICATIONS : Aerospace & Space applications.

ABRON PRH 9(M) resin system has been specifically developed for use as a resin matrix for FRP Hand Lay Up, RTM and filament winding processes. ABRON – PRH9(M)

is resole type phenol formaldehyde resin with very good spread, wettability, surface finish and very good fire resistance. The resin can also be used for filament winding applications too. 

For every 100 parts by weight of the resin 6 – 8 parts by weight of the hardener is to be added. Stir / Mix well for about 3-5 minutes. Apply the mixture within 30

minutes. By varying the amount of the catalyst in the resin, the pot life and cure speed can be achieved. Higher the catalyst the shorter will be the pot life and higher cure speed. The composite is to be cured at 60 – 70°C. Post curing of the composite at 80 – 100 C is recommended to obtain optimum thermal and mechanical properties. Slow heating rate to cure the composite is suggested to avoid blisters and optimum cure.

It is essential to use “Phenolic” Compatible fiberglass to obtain best mechanical properties.