Additives Flame Retardants. Exactly your chemistry. Exolit for Polyurethane. Application areas for Exolit grades

Transcription

1 Additives Flame Retardants Exactly your chemistry. Exolit for Polyurethane Application areas for Exolit grades

2 Exolit for Polyurethane > Application areas for Exolit grades Contents Exolit for polyurethane 2 Flame retardants for polyurethane 4 Flexible polyether foam (slabstock and molded foam) 6 Flexible polyester foam (slabstock foams) 8 Rigid PU foam 10 Rigid PIR foam 12 Integral skin foam 13 Cast resins 14 2

3 Exolit for polyurethane With its Exolit grades the Pigments & Additives Division offers an extensive range of flame retardants for polyurethane on a non-halogen basis. The Exolit grades exhibit following characteristics: Exolit in the case of fire Low smoke gas corrosivity > Reduced damage of installations and buildings Exolit-in final product Low smoke density > Extended escape time Exolit-compatibility Highly effective, low dosage, high polymer compatibility > Only slight influence on mechanical properties Excellent incorporation into matrix > No migration Good recyclability of FR-Polyurethanes > Meet current and future consumer recycling requirements Excellent ageing stability > Low dosage, no migration, high quality during life cycle Attractive price/performance ratio > Competitive systems Optimal emission behaviour > Minimization of the exposition risk of volatile organic compounds (VOC) Because of these properties Exolit flame retardants contribute to meeting the customer requirement regarding environmental impact and image. Polyurethane systems which incorporate Exolit flame retardants can obtain the most demanding fire tests, whilst retaining good mechanical properties. These features allow the materials to be used in new and demanding fields of application. 3

4 Flame retardants for polyurethane Under the brand name Exolit, Clariant supplies non-halogenated environmentally friendly flame retardants with an assured future in polyurethane applications. Their advantage lies in their effectiveness, which enables very low concentrations to be used, while at the same time meeting the most stringent requirements. In the event of fire involving Exolit-containing systems, a reduction in smoke density is apparent. Since no halogen-containing flame retardants are required, no corrosive gases such as HCl or HBr are released. These properties are of great importance in modern vehicle manufacture. Application area Test Description Classification Automotive FMVSS 302* Flammability SE > SE/NBR > SE/B > B California Techn. Bulletin 117 Fire resistance PBT VWT 709 VOC Emission Value DIN Fogging characteristics Value Construction DIN 4102 (Germany) Chimney test B1 > B2 NF P (France) Epiradiateur M1 > M2 > M3 Electrical & UL 94 (International) Burning time after ignition V0 > V1 > V2 electronics HF1 > HF2 > HBF * = Federal motor vehicle safety standard 4

5 Polyurethane product overview Products Supply form Flexible polyurethane foams Rigid polyurethane foams PU Polyether Polyester Integral PUR PIR Integral Casting/ skin skin moulding Exolit AP 422 Exolit AP 462 Exolit AP 750 Exolit OP 550 Exolit OP 560 Exolit RP 6520 Exolit RP 6580 White powder White powder White powder Medium-viscosity liquid Medium-viscosity liquid Red thixotropic dispersion Red thixotropic dispersion 5

6 Flexible polyether foam (slabstock and molded foam) Advantages of Exolit: > Liquid reactive, incorporable flame retardants > Low migration > Low emissions (e.g. low fogging and VOC-values) > High flame retardant efficiency through product life cycle > Only slight influence on mechanical foam properties > Usable in conventional production facilities by adding directly at the mixing head > Good performance in flame laminating processing (low smoke emission, good adhesion) > In the case of fire, low smoke gas corrosiveness (php) Foam Density (kg/m 3 ) Exolit OP 550 TDCPP 2) Figure 1: MVSS 302: Minimum FR levels to achieve class SE of flexible polyether foams at different foam densities. (mg) 16 (ppm) TCPP 1) TDCPP 2) Cl- Diphosphate 3) Exolit OP 550 Exolit OP 560 1mg 0 Cl- Diphosphate 3) Exolit OP 550 Exolit OP 560 Figure 2: DIN 75201: Fogging condensates of flexible polyether foams containing 7.5 php flame retardant. Figure 3: VOC-Emissions of flexible polyether foams containing 6 php flame retardant, head space examination (5 h / 120 C). 1) = Tris(chloroisopropyl)phosphate 2) = Tris(dichloroisopropyl)phosphate 3) = Tetrakis(2-Chloroethyl)dichloroisopentyldiphosphate 6

7 Products Exolit OP 550 Liquid, medium viscosity, reactive phosphorus polyol (functionality approx. 2) Exolit OP 560 Liquid, medium viscosity, reactive phosphorus polyol (functionality approx. 2) Application area Classification Addition rate Automotive FMVSS parts of Exolit OP 550 or Class SE OP 560/ 100 parts polyol DIN parts of Exolit OP 550 or (Fogging-test G) with <1 mg OP 560/ 100 parts polyol Construction California TB parts of Exolit OP 550 or OP 560/100 parts polyol DIN parts of Exolit OP 550 or Class B2 OP 560/ 100 parts polyol 7

8 Flexible polyester foam (slabstock foams) Advantages of Exolit: > No emissions (e. g. low fogging and VOC-values) > Solid easily dispersible in polyol (Exolit AP) > Usable in conventional production facilities by adding directly into the mixing head (Exolit OP) > Highly effective > Only slight influence on mechanical properties > No contribution to corrosive gases in the case of fire > Reduced foam dripping in the case of fire (Exolit AP) Products Exolit AP 422 White powder D µm, standard product Exolit AP 462 White powder D µm, microencapsulated for moisture sensitive applications Exolit OP 560 Liquid, medium viscosity, reactive phosphorus polyol (functionality approx. 2) Application area Classification Addition rate Construction DIN parts Exolit AP 422 in combination Class B2 with 8-10 parts Exolit OP 560 / 100 parts polyol Automotive FMVSS parts Exolit AP 422 or 2-10 parts Class SE Exolit OP 560/ 100 parts polyol DIN G (no fogging) 5-10 parts Exolit AP 422/100 parts polyol DIN G < 1 mg 2-10 parts Exolit OP 560/100 parts polyol PBT VWT parts Exolit AP 422/100 parts polyol no VOC or FOG contribution Electrical UL parts Exolit AP 422/ Class HF1 100 parts polyol The addition rate to achieve a specific fire classification depends heavily on the polyol, blowing agent and foam density. 8

9 (ppm) TDCPP 1)* (8 php) Exolit OP 560 (4 php) Exolit AP 422 (9 php) no FR VOC FOG Figure 4: PBT VWT 709: Emission behaviour of flexible polyester foams in fire classification SE (FMVSS 302). 1) = Tris(dichloroisopropyl)phosphate * = Federal motor vehicle safety standard 9

10 Rigid PU foam Advantages of Exolit AP: > Enables non-halogenated, pentane based DIN 4102 B2 formulations > Easily dispersible in polyols > Perfectly incorporated > No migration, no emissions > Only slight influence on mechanical foam properties > Reduced smoke values Advantages of Exolit RP: > Highly efficient > Meet high requirements Advantages of Exolit OP: > Liquid, reactive (graftable) phosphorus polyol > Compatible with conventional production equipment by adding directly into the mixing head (DS) Flaming conditions (DS) Smoldering conditions halogenated FR halogenated FR no Fr 50 no Fr 20 Exolit AP Exolit AP Time [min] Time [min] Figure 5: NBS Smoke chamber (ASTM-E 662): Specific optical smoke densities of burning rigid, n-pentane based DIN 4102 B2 foams (ppm) Smoke gas analysis halogenated FR Exolit AP 422 no FR CO HCI HCN Figure 6: NBS Smoke chamber (ASTM-E 662): Combustion gas analysis of burning rigid, n-pentane based DIN 4102 B2 foams (flaming conditions) 10

11 Products Exolit AP 422 White powder D µm, standard product Exolit AP 462 White powder D µm, microencapsulated for moisture sensitive applications Exolit OP 550 Liquid, medium viscosity, reactive phosphorus polyol (functionality approx. 2) Exolit OP 560 Liquid, medium viscosity, reactive phosphorus polyol (functionality approx. 2) Exolit RP 6520 Red thixotropic dispersion of highly stabilized red phosphorus, carrier: castor oil Exolit RP 6580* Red thixotropic dispersion of highly stabilized red phosphorus, carrier: TCPP Application area Classification Addition rate Construction DIN parts of Exolit AP 422 Class B2 or AP 462/100 parts of polyol (depending on the polyols and blowing agents used) DIN parts of Exolit OP 550 Class B2 or OP 560/100 Parts of polyol (depending on the polyols and blowing agents used) DIN parts of Exolit RP 6520 Class B2 or RP 6580/100 parts of polyol (additional parts of TCPP are depending on the systems used) The addition rate to achieve a specific fire classification depends heavily on the polyol, blowing agent and foam density. * = Contains halogen 11

12 Rigid PIR foam Advantages of Exolit AP: > Easily dispersable in polyols > Perfectly incorporated > No migration, no emissions > Only slight influence on mechanical foam properties > Reduced smoke values Advantages of Exolit RP: > Highly efficient > Meets high requirements (e.g. DIN 4102 B1) Products Exolit AP 422 Exolit AP 462 Exolit RP 6580 White powder D µm, standard product White powder D µm, microencapsulated for moisture sensitive applications Red thixotropic dispersion of highly stabilized red phosphorus, carrier: TCPP Application area Classification Addition rate Construction DIN parts Exolit AP 422 / Class B2 100 parts polyol (blowing agent pentane, NCO index 250, combined with other non-halogenated liquid flame retardants) Class B1 15 parts Exolit RP 6580/100 parts polyol (blowing agent R 141b, high NCO index combined with additional TCPP) NF P parts Exolit RP 6580/100 parts Class M1 polyol (blowing agent R 141b, high NCO index combined with additional TCPP) The addition rate to achieve a specific fire classification depends heavily on the polyol, blowing agent and foam density. 12

13 Integral skin foam Advantages of the Exolit AP: > Fine cell foam structure > Solid material, easily dispersible in polyol > No migration > Highly effective > No influence on mechanical properties > No plasticizing effects > Low smoke gas corrosivity in the case of fire > No influence on foam recycling (e. g. on glycolisis) Products Exolit AP 422 White powder D µm, standard product Exolit AP 462 White powder D µm, microencapsulated for moisture sensitive applications Exolit AP 750 White powder, intumescent flame retardant system based on Exolit AP 422 Exolit RP 6520 Red thixotropic dispersion of highly stabilised red phosphorus, carrier: castor oil Application area Classification Addition rate Construction DIN parts Exolit AP 422 / Class B2 100 parts polyol, rigid integral skin foam Electrical UL parts Exolit AP 422 / Class 5V 100 parts polyol, rigid integral skin foam The extremely demanding requirements of railway and aircraft standards (e.g. DIN 5510, ABD 031) can be achieved with these highly effective flame retardants in special developed rigid and flexible integral skin formulations The addition rate to achieve a specific fire classification depends heavily on the polyol, blowing agent and foam density. 13

14 Cast resins Advantages of the systems: > Low smoke gas corrosiveness in the case of fire > Low filler content > Low processing viscosity and good flow properties > Exolit RP 6520 does not affect the electrical properties (php) UL 94 V-0 (1.6 mm) ATH ATH + AP 422 ATH + RP 6520 ATH Exolit AP 422 Exolit RP 6520 Figure 7: Flame retardant concentrations in cast resins: Exolit combined with ATH compared to pure ATH (aluminia trihydrate) 14

15 Products Exolit AP 422 Exolit AP 462 Exolit RP 6520 White powder D µm, standard product White powder D µm, microencapsulated for moisture sensitive applications Red thixotropic dispersion of highly stabilized red phosphorus, carrier: castor oil Application area Classification Addition rate Electrical UL parts Exolit AP 422 / Class V-1, 1.6 mm 100 parts polyol Class V-0, 1.6 mm parts Exolit AP 422 combined with parts ATH Class V-0, 1.6 mm parts Exolit RP 6520 combined with parts ATH /100 parts polyol Transportation DIN parts Exolit AP 422 combined Class S4 SR2 ST2 with 20 parts Exolit RP 6520 and 100 parts ATH The addition rate to achieve a specific fire classification depends heavily on the polyol, blowing agent and foam density. 15

16 Clariant International Ltd Business Unit Additives Business Line Flame Retardants Rothausstrasse Muttenz Switzerland Phone: Fax: Exactly your chemistry. This information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. Clariant makes no warranties, express or implied, as to the information s accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of Clariant s products for its particular application. * Nothing included in this information waives any of Clariant s General Terms and Conditions of Sale, which control unless it agrees otherwise in writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety precautions, that should be observed when handling or storing Clariant products, are available upon request and are provided in compliance with applicable law. You should obtain and review the applicable Material Safety Data Sheet information before handling any of these products. For additional information, please contact Clariant. * For sales to customers located within the United States and Canada the following applies in addition: NO EXPRESS OR IMPLIED WARRANTY IS MADE OF THE MERCHANTABILITY, SUITABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE OF ANY PRODUCT OR SERVICE. = Trademark of Clariant registered in many countries 2012 Clariant International Ltd DA 4004 E_04/12