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Reactive liquid modifier enabling significant improvement in fracture toughness without sacrificing glass transition temperature (Tg).
Excellent compatibility with standard DGEBA-type epoxy resins and common amine or anhydride curing agents.
Low viscosity formulation facilitates easy incorporation and homogeneous dispersion during resin mixing.
Enables reduced microcracking and enhanced impact resistance in cured epoxy composites.
No volatile organic compounds (VOCs) — compliant with stringent industrial health and safety requirements.
Aerospace structural adhesives and composite matrix resins.
High-performance electrical encapsulants and potting compounds.
Wind turbine blade bonding and structural reinforcement systems.
Automotive under-hood components requiring thermal and mechanical durability.
Advanced printed circuit board (PCB) laminates and prepregs.
| Chemical Type | Reactive carboxyl-terminated liquid polymer |
| Product Form | Clear, low-viscosity liquid |
| Appearance | Pale yellow to colorless, transparent liquid |
| Density (25°C) | Approx. 1.02–1.05 g/cm³ |
| Viscosity (25°C) | 300–600 mPa·s |
| Reactive Functionality | Carboxyl end groups (–COOH) |
| Storage Stability | 12 months at ≤25°C in unopened original packaging |
| Primary Applications | Epoxy toughening for structural composites and high-reliability electronics |
Q1: What is the primary function of Kaneka MX-170 in epoxy systems?
A: Kaneka MX-170 is a reactive liquid toughening agent designed to enhance the fracture toughness and impact resistance of cured epoxy resins without significantly compromising modulus, glass transition temperature (Tg), or chemical resistance.
Q2: How is MX-170 incorporated into epoxy formulations?
A: MX-170 is typically added directly to the epoxy resin component prior to curing agent addition. It exhibits good miscibility with common diglycidyl ether of bisphenol-A (DGEBA) and novolac epoxies, and requires no special pre-treatment or dispersion equipment under standard processing conditions.
Q3: Does MX-170 affect the cure kinetics of epoxy systems?
A: MX-170 is non-reactive toward common amine and anhydride hardeners and does not act as a catalyst or inhibitor. It generally has minimal influence on gel time or exotherm profile when used at typical dosage levels, though slight reductions in peak exotherm temperature may be observed depending on formulation.
Q4: Is MX-170 suitable for high-performance composites and structural adhesives?
A: Yes — MX-170 is widely used in aerospace-grade prepregs, filament-wound composites, and high-strength structural adhesives where improved delamination resistance and damage tolerance are critical. Its compatibility with high-Tg curing cycles supports demanding service environments.
Q5: What storage and handling precautions should be observed?
A: Store in tightly sealed containers under dry, cool conditions (below 30 °C) and protect from moisture and prolonged exposure to air. MX-170 is stable under recommended storage conditions but may undergo gradual viscosity increase over extended periods if exposed to humidity or elevated temperatures.
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