MARTINAL® OL-104 LEO/OL-107 LEO

WIRE AND CABLE: Use of MARTINAL (aluminium hydroxide flame retardants) in silane cross-linkable polyethylene halogen free compoundsMARTINAL OL-104 LEO and OL-107 LEO are optimized products

with enhanced compounding performance, better electrical

properties, higher bulk density after conveying, improved

thermal stability and lower compound viscosity.

For decades, polyolefins have been successfully used in cable

insulation and cable jackets. The increase of electrical

installations in buildings and vehicles has prompted regulators

to increase fire safety standards for cables. There is also an

increased demand for compounds having higher thermal

stability in applications such as photovoltaic panels, trains

and automobiles.

MARTINAL OL-104 LEO and OL-107 LEO have an

impressive history of being selected in broader types

of polyolefin compounds for many years. They are

recognized as reliable, environmentally friendly and

non-toxic flame retardants.

Naturally, the use of cross-linkable polymers combined

with MARTINAL OL-104 LEO or OL-107 LEO are

cost-effective solutions to reach required mechanical

properties –including the new Fire Performance of

Electric Cables (FiPEC) standard.

P R E P A R A T I O N

Sheathing compound formulation based on ExxonMobil® polar and unpolar polymers, including Albemarle’s MARTINAL LEO product was prepared on a MX54 L/D 22 BUSS Kneader. Screw configuration can be provided on request. Extrusion @ 150°C (302°F) with 2.5% catalyst batch; Cross-linking in water @ 95°C (203°F) for approximately four hours.

Sheathing compound formulation and performance

COMPONENT DESCRIPTION

Polar polymer (EVA) Escorene® Ultra EVA resins* 75

Unpolar polymer (LLDPE) ExxonMobil® LLDPE LL 1001 XV* 25

Flame retardant MARTINAL 160 (187, 5)

Cross-linking agent Dynasylan® Silfin 13/Silfin 25 mix** ca. 1, 5

Stabilizers ETHANOX® 310 3

COMMERCIAL PRODUCT IN PH R

*Trademark of ExxonMobil® **Trademark of Evonik Industries AG

MFR-0001 (03-2013)

AMERICA S

451 Florida Street, Baton Rouge, Louisiana 70801, United States Tel: +1 225 388 8011 Fax: +1 225 388 7686 albsales@albemarle.com

EUROPE, MIDDLE EAST, AFRICA

Parc Scientifique de LLN, Rue du Bosquet 9, B-1348 Louvain-la-Neuve Belgium Tel: +32 10 48 1711 Fax: +32 10 48 1717 emasales@albemarle.com

A S I A PAC I F I C

Room 2208, Shui On Plaza, No. 333 Hua Hai Zhong Road, Shanghai 200021 China Tel: +86 21 6103 8666 Fax: +86 21 6103 8777 apsales@albemarle.com

MARTINAL and ETHANOX are registered trademarks of Albemarle Corporation. The information presented herein is believed to be accurate and reliable, but is presented without guarantee or responsibility on the part of Albemarle Corporation and its subsidiaries to ensure the accuracy or reliability of the information. It is the responsibility of the user to comply with all applicable laws and regulations and to provide for a safe workplace. The user should consider all information contained herein only as a guide, and should take precautions that the user considers necessary or prudent to promote a safe work environment, such as considering all applicable health and safety hazards, developing safe work practice procedures and properly instructing employees. Further, nothing contained herein shall be taken as an inducement or recommendation to manufacture or use any of the materials or processes mentioned herein in violation of existing or pending patents.

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Max. 1500 mm class BMax. 2000 mm class C

1640 1040Flame Spread [mm]

60% MARTINAL LEO

FIGURE 1: Melt temperature at different throughputs – MARTINAL OL-104 LEO

FIGURE 3: MARTINAL 65% Loading

150

0

0 300 600 900 1200 1500

2

4

6

8

10

12

14

16

18

20

0.00

0.01

0.02

0.03

0.04

0.05

0.06

0.07

100

150

200

250

2 3 4

PIN POSITION

5 6 7

65% MARTINAL LEO REQUIREMENTS

Max. 15 MJ class BMax. 30 MJ class C

18,5 10,2THR 1200s [MJ]

Max. 30 kW class BMax. 60 kW class C

30,3 17,7PHRR [kW]

Max. 120 W/s class BMax. 300 W/s class C

77,9 50,3FIGRA [W/s]

Advantages and benefits of using MARTINAL®

Higher thermal stability of

MARTINAL OL-104 LEO and 107 LEO

allows for melt temperatures up to

230°C (446°F) without degradation.

• Very high compound processing throughput

• Very broad processing window

Fig 1 & Fig 2: Evolution of the melt

temperature vs. the extrusion throughput

RHEOLOGICAL PROPERTIES

• Better extrusion properties

• No influence on cross-linking behavior (hot-set)

BURNING PROPERTIES (FiPEC acc. to EN 50399: 2012)

• Allow improvement of Peak Heat Release Rate (PHRR )

• Allow delayed Time To Ignition (TTI)

• Allow reduced gradient FIre GRowth RAte (FIGRA)

Fig 3. Burning Properties – FiPEC acc.

to EN 50399: 2012

For additional information

regarding the compound

formulation or the result of

the test, contact your

Albemarle technical

customer service.

°CH

EA

T R

ELE

AS

E R

AT

E H

HR

[kW

]

SM

OK

E P

RO

DU

CT

ION

RA

TE

SP

R [

m2/s

]

FIGURE 2: Melt temperature at different throughputs – MARTINAL OL-107 LEO

150

100150 kg/h175 kg/h200 kg/h

150

200

250

2 3 4

PIN POSITION

TIME [s]

5 6 7

°C

150 kg/h175 kg/h200 kg/h