raising performance with benzoxazine resins - quarter...
TRANSCRIPT
Advanced Materials
Raising performance with benzoxazine resins
Quarter 1, 2015
Advanced Materials
Features and benefits Features and benefits
Reaction mechanism
Product selection Araldite® benzoxazine resins structure
Product selection
Processing parameters Viscosity
Reactivity
Thermo-mechanical / FST performance Thermo-mechanical properties
Flammability behavior
Accelerators Accelerators DT 300, DT 310
Accelerator DT 310, Aradur® 3123
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Table of contents
Advanced Materials
Features and benefits
Aspect !! Yellowish solid to semi-solid
Main features !! Di-functional thermosetting molecule !! Reacts at high temperature through addition reaction,
without gas release and with “near-zero” shrinkage !! Creates on curing a phenolic-type network, showing very
low moisture absorption !! High glass transition temperature and high modulus network !! Compatible with various other chemistries including
epoxies, bis-maleimides, phenolics!
Applications and benefits !! Provides matrices with higher modulus than epoxy resins,
with equivalent glass transition temperature, lower water sensitivity, and better flame resistance
!! Proposed for advanced composites, structural adhesives, laminates for printed wiring boards, high performance coatings, encapsulating and molding compounds
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< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials
Reaction mechanism
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Synthesis
Curing of benzoxazine resins
R1
R2
R3 OH
O
H HNH2 R4
R1
R2
R3 O
NR4
+ 2 +
R1
R2
R3
ONR4
R1 R3
ONR4
R1
R2
R3
R1 R3
OH
OH
N
R4
NR4
R1
R2
R3
R1 R3
OH
OH
N
R4
NR4
ORO
O
O
!
n
R1
R2
R3
R1 R3
O
OH
N
R4
NR4
R1
R2
R3
R1 R3
O
OH
N
R4
NR4
OHO
RO
O
OHO
RO
O
n
+ (or phenolic, bis-maleimides!)
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials
Araldite® benzoxazine resins structure
!! Araldite® MT 35700 !! Araldite® LZ 8280 N75 Solvent based
!! Araldite® MT 35600
Bis-A based
CH3
CH3
O O
NN
Bis-F based
CH2
O O
NN
Proprietary !! Araldite® MT 35710 FST New !! XU 8282-1 (UL 94 V-0) Solvent based
!! Araldite® LZ 8278 N 70 / Aradur® HZ 8279 Z 50 Solvent based
Phenolphthaleine based
N
O
N
O
O
O
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials
Product selection
Benzoxazine resins Product
Description Viscosity Tg Features
Unit mPa.s °C
Araldite® MT 35600
Bis-A based 1 000 - 7 000 at 100ºC 170-180 Solid, low reactivity
Araldite® MT 35700 Bis-F based 1 000 - 7 000 at 100ºC 170-180 Solid, good FST properties
Araldite® LZ 8280 N75
Bis-F based 300 - 800 at 25ºC 170-180 Solvented, good FST properties
Araldite® MT 35710 FST Proprietary 30 - 100 at 100ºC 130-140 Semi-solid, outstanding FST and heat release properties
XU 8282-1 Phenolphthalein based
100 - 3000 at 25ºC 190 - 200 Solvented, outstanding FST and heat release properties, High Tg
Araldite® LZ 8278 N 70 / Aradur® HZ 8279 Z 50
Phenolphthalein based
50 - 500 at 25ºC 200 - 225 Solvented, outstanding FST and heat release properties, High Tg
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials
Product selection
Benzoxazine accelerators / hardeners Product
Description Melting / Softening point Appearance
Unit mPa.s °C
Accelerator DT 300 Thiodiphenol 154 - 156 White powder
Accelerator DT 310 Thiodiacid 127 - 134 White powder
Aradur® 9690-1 Novolac hardener 85 - 95 Light to dark yellow flakes
Aradur® 3123 Imidazole 180 - 250 White to amber powder
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials 8
Viscosity
Comparison of Araldite® MT 35600, MT 35700 and MT 35710 FST Viscosity at different temperature
Viscosity measured with cone / plate
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials 9
Reactivity
Comparison of Araldite® MT 35600, MT 35700 and MT 35710 FST Gel time at 180ºC
Gel time measured with hot plate
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials 10
Thermo-mechanical properties
Comparison of Araldite® MT 35600, MT 35700 and MT 35710 FST Modulus and glass transition
Cure profile: 2h at 120ºC + 2h at 180ºC + 2h at 200ºC
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials
Flammability behavior
Araldite® MT 35710 FST and XU 8282-1 vs. Phenolic
Araldite® MT 35710 FST
E-glass (2)
2-ply laminate
XU 8282-1 + Catalyst (1)
E-glass (2)
1-ply laminate
XU 8282-1 (1)
E-glass (2)
1-ply laminate
Phenolic prepreg Aero qualified reference (1)
E-glass (2)
1-ply laminate
Prepreg resin content 50% 50% 50% 40%
Curing conditions 2 h at 150ºC + 2 h at 177ºC, 1.0 bar 2 h at 150ºC, 1.0 bar 2 h at 180ºC, 1.0 bar -
Resin content (cured) - - - 40% ± 2
Flammability 12 s AITM 2.0002 B - 142 mm / 2 s / 0 s 128 mm / 0 s / 0 s -
Flammability 60 s AITM 2.0002 A 94 mm / 0 s / 0 s 167 mm / 0 s / 0 s 144 mm / 0 s / 0 s 60 mm / 0 s / 0 s
Smoke density (flaming) AITM 2.0007 11 Ds 6 Ds 6 Ds 5 Ds
Toxicity (flaming) AITM 3.0005
HCN 2 ppm 1 ppm 2 ppm 0 ppm
CO 19 ppm 74 ppm 113 ppm 50 ppm
NOx 3 ppm 3 ppm 5 ppm 10 ppm
SO2 0 ppm 6 ppm 1 ppm 0 ppm
HCI 0 ppm 0 ppm 0 ppm 0 ppm
HF 1 ppm 0 ppm 0 ppm 0 ppm
Heat release test (HRR / HR) AITM 2.0006 29 kw/m2 / 18 kw*min/m2 63 kw/m2 / 33 kw*min/m2 58 kw/m2 / 34 kw*min/m2 65 kw/m2 / 40 kw*min/m2
(1) Tested by Airbus Bremen (2) 5h Satin, 6K, 270 gsm
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
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Advanced Materials 12
Accelerators DT 300, DT 310
Effect of accelerators DT 300 and DT 310 on Araldite® MT 35600 Gel time
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials 13
Accelerator DT 310, Aradur® 3123
Effect of accelerators DT 300 and Aradur® 3123 on Araldite® MT 35710 FST / Aradur® 9690-1 Gel time and glass transition Gel time and glass transition
80 parts Araldite® MT 35710 FST + 20 parts novolac hardener (Aradur® 9690-1 based) / 3.5 parts accelerator Gel time measured with hot plate
< Table of content Product selection > Features / Benefits > Processing > Performance > Accelerators >
Advanced Materials 14
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Advanced Materials 15
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