Prepregs
Preimpregnated laminates are resin matrix systems, reinforced with glass-, carbon- and aramide-fibres. Cured at higher temperature a solid structure is build which is highly durable, temperature resistant and stiff. Prepregs are used for a wide range of applications: aerospace-, transports-, marine, sports and leisure (e.g. windmill-/rotor-blades, high speed trains, fast boats, golf clubs and snowboards). Weight saving with prepregs is significant in comparison to other materials (e.g. metal).
Combining prepregs with honeycombs (composites) best performance can be achieved with Struktol® Polydis®: mechanical properties (toughening) and tackyness of the prepreg is improved. With Struktol® Polydis® flame retardands, epoxy based prepregs can be provided with halogen free, smoke density- and flammability-reducing, none-toxic properties.
Struktol® Polycavit® 3511
Low viscous functional modifier for resin replacement
- Resin replacement: 10-25 %
- Epoxy equivalent weight: 315 g/Eq
- Viscosity at 25 °C: 35 Pa.s
- Appearance: clear to slightly yellowish, liquid
Struktol® Polycavit® 3530
Polyurethane modified epoxy resin
- Resin replacement: 10-20 %
- Epoxy equivalent weight: 460 g/Eq
- Viscosity at 40 °C: 25 Pa.s
- Appearance: yellowish, liquid
Struktol® Polycavit® 3550
Epoxy functional polyester-polyether copolymer
- Resin replacement: 5-10 %
- Epoxy equivalent weight: 1.800 g/Eq
- Viscosity at 25 °C: 400 Pa.s
- Appearance: yellowish, viscous liquid
Modifier concentrate
Struktol® Polycavit® 3565
Bimodal (CSR/PEA) modified epoxy resin
- Resin replacement: 10-40 %
- Epoxy equivalent weight: 325 g/Eq
- Viscosity at 25 °C: 200 Pa.s
- Appearance: whitish cloudy, viscous
Core-Shell-Rubber /Polyetheramine modification
Struktol® Polycavit® 3622
Polyol modified epoxy prepolymer based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 330 g/Eq
- Viscosity at 25 °C: 10 Pa.s
- Appearance: clear, slightly yellowish liquid
Epoxy resin
Struktol® Polycavit® 3632
Fatty acid modified epoxy resin based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 600 g/Eq
- Viscosity at 50 °C: 47 Pa.s
- Appearance: yellowish, viscous resin
Struktol® Polycavit® 3637
Fatty acid modified epoxy resin based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 470 g/Eq
- Viscosity at 50 °C: 8 Pa.s
- Appearance: yellowish, viscous resin
Struktol® Polycavit® 3662
Polyol modified cycloaliphatic epoxy prepolymer
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 260 g/Eq
- Viscosity at 25 °C: 2 Pa.s
- Appearance: yellowish, low viscous epoxy resin
Struktol® Polydis® 3604
Nitrile rubber modified epoxy resin
- based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 330 g/Eq
- Viscosity at 25 °C: 190 Pa.s
- Appearance: yellowish, viscous resin
Struktol® Polydis® 3605
Nitrile rubber modified epoxy prepolymer based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 300 g/Eq
- Viscosity at 25 °C: 50 Pa.s
- Appearance: yellow, liquid resin
- A lower vicous version of Struktol Polydis 3604 designed for easier processing at room temperature
Struktol® Polydis® 3606
Nitrile rubber modified epoxy prepolymer based on DGEBF
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 300 g/Eq
- Viscosity at 25 °C: 180 Pa.s
- Appearance: yellowish liquid resin
Struktol® Polydis® 3610
Nitrile rubber modified epoxy prepolymer based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 600 g/Eq
- Dyn. Viscosity at 80 °C: 100 Pa.s
- Appearance: amber, solid resin, exhibiting cold flow
- This product provides ultimate toughening and best adhesion especially on oily steel for 1-component-systems
Struktol® Polydis® 3611
Nitrile rubber modified epoxy prepolymer based on DGEBF
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 550 g/Eq
- Viscosity at 80 °C: 30 Pa.s
- Appearance: amber, resin paste
- This product provides ultimate toughening and best adhesion especially on oily steel for 1-component-systems
Struktol® Polydis® 3614
Nitrile rubber modified epoxy prepolymer based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 330 g/Eq
- Viscosity at 25 °C: 470 Pa.s
- Appearance: yellowish, highly viscous resin
Struktol® Polydis® 3615
Nitrile rubber modified epoxy prepolymer based on DGEBA
- Resin replacement: 10-35 %
- Epoxy equivalent weight: 300 g/Eq
- Hydrolyzable chlorine content: 250 ppm
- Viscosity at 25 °C: 250 Pa.s
- Appearance: amber, viscous liquid resin
- Low ionic version of Struktol Polydis 3614 with low viscosity designed for electronic applications
Struktol® Polydis® 3670
Nitrile rubber modified epoxidized Novolak
- Resin replacement: 20-50 %
- Epoxy equivalent weight: 250 g/Eq
- Viscosity at 50 °C: 220 Pa.s
- Dropping point: 50 °C
- Appearance: amber resin
Struktol® Polydis® 3691
Nitrile rubber modified epoxy prepolymer based on DGEBA
- Resin replacement: 10-15 %
- Epoxy equivalent weight: 205 g/Eq
- Dyn. Viscosity at 50 °C: 12 Pa.s
- Appearance: yellowish, cloudy resin
Struktol® Polydis® 3693
Nitrile rubber modified epoxy prepolymer based on DGEBF
- Resin replacement: 10-15 %
- Epoxy equivalent weight: 180 g/Eq
- Viscosity at 50 °C: 8 Pa.s
- Appearance: yellowish, cloudy resin
Struktol® Polydis® 3695
Nitrile rubber modified epoxy prepolymer based on DGEBA
- Resin replacement: 10-15 %
- Epoxy equivalent weight: 195 g/Eq
- Viscosity at 80 °C: 7 Pa.s
- Appearance: yellowish, cloudy resin
Struktol® Polydis® 3696 S
Nitrile rubber modified epoxy prepolymer based on a blend of liquid and solid DGEBA, 70 wt% in MEK
- Resin replacement: 15-20 %
- Epoxy equivalent weight: 630 g/Eq
- Solvent content (MEK): 30 wt%
Struktol® Polyphlox® 3700
Hydroxy functional phosphoric co-monomers
- Dyn. viscosity at 25 °C: 125 Pa.s
- Phosphorous Content: 5 %
- Hydroxyl number: 185 mgKoH/g
Struktol® Polyphlox® 3710
DOPO-9, 10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
- Halogene-free
- Toxicologically harmless
- Hydrogen-functional organophosphorous
- compound
- Melting point: 116 °C
- Phosphorous Content: 14.3 %
- Appearance: white flakes
The DOPO structure can also act as an UV-stabilizer
Struktol® Polyphlox® 3735
Multi-functional, organophosphorous modified epoxy Novolak resin (based on Struktol® Polyphlox® 3710)
- Epoxy equivalent weight: 350 g/Eq
- Softening point: 80 °C
- Phosphorous Content: 3.8 %
- Appearance: transparent – yellowish solid resin
Struktol® Polyphlox® 3742
Phosphoric reactive, flame retardant modified epoxy resin (based on Struktol® Polyphlox® 3710)
- Epoxy equivalent weight: 370 g/Eq
- Softening point: 57 °C
- Phosphorous Content: 4.0 %
- Appearance: yellowish semi-solid resin
Struktol® Polyvertec® 3618
Nitrile rubber modified epoxy resin based on DGEBA/DGEBF
- Resin replacement: 20-60%
- Epoxy equivalent weight: 285 g/Eq
- Viscosity at 25 °C: 10 Pa.s
- Appearance: yellowish liquid resin
- Additional bonding on metallic, oiled surfaces
Struktol® Polyvertec® 3625
Polyurethane modified epoxy resin
- Epoxy equivalent weight: 205g/Eq
- Viscosity at 25 °C: 10 Pa.s
- Appearance: clear, slightly yellowish liquid resin
- It highly improves the visoplastic properties and toughness of the epoxy resin system
Struktol® Polyvertec® 3633
Bimodal elastomer modified epoxy resin base on DGEBA/DGEBF
- Resin replacement: 20-50%
- Epoxy equivalent weight: 220 g/Eq
- Viscosity at 25 °C: 25 Pa.s
- Appearance: amber coloured, liquid resin
- Improves low temperature behaviour
Struktol® Polyvertec® 3636
High molecular weight rubber modified epoxy resin based on liquid/solid DGEBA
- Resin replacement: 40-100%
- Epoxy equivalent weight: 300 g/Eq
- Viscosity at 40 °C: 200 Pa.s
- Appearance: yellowish, high viscous
- Improves toughness of epoxy formulations and also low temperature behaviour
Struktol® Polyvertec® 3652
High molecular weight rubber modified epoxy prepolymer based on DGEBA
- Resin replacement: 50-100%
- Epoxy equivalent weight: 360 g/Eq
- Viscosity at 40 °C: 15 Pa.s
- Appearance: yellowish, paste-like epoxy resin
- Reactive hot melt adhesives and structural foams
- Improves toughness of epoxy formulations and brittleness will be reduced