Overview of Exolit Flame retardants in thermoset - Clariant/.../K2013/Additives_fuer_alle/Flame_Retardants/... · Overview of Exolit Flame retardants in thermoset ... layers of charred

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Dr. Frank OsterodTM & DevelopmentBL Flame Retardants02.05.2013

Overview of Exolit Flame retardants in thermoset applications

Dr. Frank Osterod, TM & Development, BL Flame Retardants, 02.05.2013

Applications for thermosets and composites

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Product groups and chemistry

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Base Materials / Resins

– Unsaturated polyester resins

– Epoxy resins

– Phenolic resins

– Polyurethane resins

– Polyurethane foams (rigid and flexible)

Flame Retardants

– Exolit AP

- FR based on Ammonium polyphosphate

– Exolit OP

- FR based on Organo-phosphorus

– Exolit RP

- FR based on Red phosphorus


Detailed Exolit product overview for thermosets(1/2)Exolit AP

- Exolit AP 422 Ammonium polyphosphate

- Exolit AP 423 Ammonium polyphosphate, small particles

- Exolit AP 462 Ammonium polyphosphate, coated surface

- Exolit AP 740 Intumescent system with ammonium polyphosphate


- Exolit AP 740 S&F Intumescent system with ammonium polyphosphate


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Detailed Exolit product overview for thermosets(2/2)Exolit OP

- Exolit OP 1230 Al-salt, organo-phosphorus

- Exolit OP 930 / 935 Al-salt, organo-phosphorus

- Exolit OP 550 organo-phosphorus, reactive

- Exolit OP 560 organo-phosphorus, reactive, (requires end userdeclaration)

Exolit RP

- Exolit RP 6500 Red phosphorus with epoxy resin carrier

- Exolit RP 6520 Red phosphorus with castor oil

Special products

- PU 6580 Red phosphorus in TCPP

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Fire standards for thermoset applications

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Examples

UL 94 V0, mainly used for electronic components

Smoke density ISO 5659,measurement with optical system

ISO 5658 (IMO Version)

Flame spread

ISO 5660-1 Cone Calorimeter,heat release rate (HRR) and MAHRE


International UL 94 (V0)

electronics applications

specimen:5 specimen: 12,7 x 127 mm

test:gas burner2 intervals á 10 s flaming

classification:total flaming (1) V0 < 10 stotal flaming (5) V0 < 50 sflaming dripping V0 = no dripping

class:V0, V1, V2

Burner

Cotton

Specimen

with flame retardant

without flame retardant


Some examples to see how complex the worldof flame retardant tests can be:

Old system classification

– Germany DIN 5510

– Italy UNI CEI 11170

– France NF F 16-101

– Spain RENFE DT PCI 5A

– Great Britain BS 6553

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Some examples from mass transit (Railway) FR tests in Europe:

New system

European regulation

EN 45545-2:2013

With 4 main test:

– Spread of flame ISO 5658-2

– Heat release rate ISO 5660-1

– Smoke density and smoke toxicity ISO 5659-2

Hazard level HL1, HL2, HL3

----------------------------------------- USA NFPA 130


Rolling stock

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EU standard: prCEN TS 45545

Set No. R1= interior components, horizontal downwards facing surfaces, upwards facing within cavities, electrical hood

GelcoatLaminat

100 phr AP 74050 phr ATH

100 phr AP 740125 phr ATH

100 phr AP 740100 phr AP 740

ISO 5658-2 CFE HL3 HL3 HL3

ISO 5659-2 CIT HL3 HL3 HL3

ISO 5659-2 VOF4 / Ds4 HL2 HL3 HL2

ISO 5660-1 MAHRE HL3 HL3 HL1


Exolit AP - Intumescent Systems for UP-resins

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Exolit AP 740

laminate

Principle of Intumescence:layers of charred foam protectslaminate

Exolit AP 742


Exolit FRs in UP resins under different test conditions

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Exolit FRs in EP resins under UL 94 test conditions

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Polyurethanes

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Different types and applications

Flexible polyether foams

Flexible polyester foams

Rigid foams

Cast resins

Coatings

Raw materials

Polyols

Isocyanate

Amine catalysts

Silicone stabilizers

Flame retardants (Exolit AP 422, Exolit OP 550 or OP 560)

Blowing agents


Product range for PUR foams

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Exolit OP 550

Exolit OP 560 liquid, reactive flame retardant

liquid, reactive flame retardant

– Both products are liquid and can be used with conventional equipment

– Functionality approx. 2

– For Exolit OP 560 an end user declaration is necessary

– Prefered products for flexible foams

– Prefered product for rigid foams

– DIN 4102 B2 formulations available

Exolit AP 422 white powder, additive flame retardant


Flexible Polyether Foam

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22,5 25,0 27,5 30,0 32,5 35,00

5

10

15

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density [kg/m³]

TDCPP ®Exolit OP 550 ®Exolit OP 560

Bor

der c

onen

trat

ion

for a

chie

ving

25,0 30,0 35,0density [kg/m³]

California TB 117FMVSS 302, class SE


Exolit Flame Retardants

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– in case of fire:

- low smoke gas corrosivity (reduced damage)

- low smoke density (extended escape time)

– compatibility:

- highly effective (low dosage, good mechanics)

- no migration

- good recyclability

– in final product:

- excellent ageing stability (high quality during life time)

- attractive price/performance ratio

Documents

Overview of Exolit Flame retardants in thermoset - Clariant/.../K2013/Additives_fuer_alle/Flame_Retardants/... · Overview of Exolit Flame retardants in thermoset ... layers of charred