Acrylic Impact Modifier

About Acrylic Impact Modifier

Product Overview ACRYLIC impact modifier is a polymer additive based on acrylic core-shell structure, designed specifically to enhance the impact toughness of PVC, especially hard PVC. Its unique core-shell microstructure (hard core+soft shell) can form an elastic dispersed phase in the PVC matrix, effectively absorbing impact energy, significantly improving the materials impact resistance, while maintaining excellent weather resistance and processing stability. Core Features: Ultra high impact resistance The notch impact strength of PVC can be increased to 20-60 kJ/m2(unmodified PVC typically <5 kJ/m2). It maintains toughness at low temperatures (-30 DegC to -40 DegC) and is suitable for cold environments. Excellent weather resistance Does not contain unsaturated double bonds (different from MBS/ABS), has excellent UV aging resistance, and does not turn yellow after long-term outdoor use. Suitable for products such as door and window profiles, outdoor building materials, etc. that are exposed to sunlight and rainwater. Transparency optionalSome models have a refractive index that matches PVC and can be used for high transparency products such as medical packaging and transparent sheets. Processing compatibility Good compatibility with PVC resin, stabilizers, and lubricants, without affecting plasticization efficiency. Some models also serve as processing aids, such as promoting melting and improving surface smoothness. Rigid toughness balanceWhile improving toughness, it has little impact on the rigidity (bending modulus) of PVC, making it suitable for structural components. Applications Industry Application Scenarios Core Requirements Building materials Door and window profiles, PVC tiles, guardrails Weather resistance, high impact resistance Automobile Instrument panel, sealing strip, interior trim Low temperature toughness, anti-aging Packaging Transparent medical packaging, food containers Transparent, no precipitation Electronics Electrical enclosures, junction boxes Flame retardant synergy (can be paired with flame retardants SummaryACRYLIC impact modifier is the preferred choice for high-end rigid PVC products, especially suitable for applications that require weather resistance, high impact resistance, and low temperature toughness (such as door and window profiles, automotive components). Although the cost is higher than CPE/MBS, its comprehensive performance advantages can significantly extend product life and reduce long-term maintenance costs. For transparent or extremely low-cost requirements, MBS or CPE can be chosen as alternative solutions at discretion.