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Product SelectorYparex VA 1902

Yparex VA 1902

Yparex VA 1902 (formerly known as Exxelor VA 1902) polymer resin is a high flow, amorphous ethylene copolymer functionalized with maleic anhydride by reactive extrusion. Its fully saturated backbone results in outstanding thermal and oxidative stability leading to enhanced weatherability. Moreover, its amorphous nature exhibits impact resistance at very low temperatures in blends with engineering polymers such as polyamide.

Yparex VA 1902 is designed to:

  • Modify the impact characteristics of the full range of polyamides for temperatures as low as -30°C (a function of the modifier treat level in the blend).
  • Offer the best balance between stiffness and low temperature performance in polyamide blends.
  • Modify the impact characteristics of other engineering thermoplastics and technical polymers (with or without glass fibres, fillers etc.).
  • Achieve compatibility between polyolefins and more polar polymers, that are capable of interacting with maleic anhydride.

Key features of Yparex VA 1902 impact modifier and compatibilizer

Performance enhancements in polyamide blends:

  • Outstanding notched Izod impact resistance at room temperature.
  • Consistent and very high notched Izod impact resistance down to -30°C.
  • Improved flexibility.
  • Reduced moisture sensitivity and improved dimensional stability allowing the production of molded parts with different wall thicknesses.
  • Improved assembly of freshly molded parts.
  • Increased impact resistance of glass-reinforced compositions.
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Thermal Properties Typical Value Unit SI Test Method
Glass Transition, Tg (°C) -57 °C In-house method
Glass Transition, Tg (°F) -71 °F In-house method
Physical Properties Typical Value Unit SI Test Method
Melt Mass-Flow Rate (MFR) 230°C/2.16kg 4.0 g/10 min ISO 1133
Melt Mass-Flow Rate (MFR) 230°C/10.0kg 27 g/10 min ISO 1133
Maleic Anhydride Graft Level high In-house method
Volatiles < 0.15 % In-house method
Density 0.860 g/cm³ In-house method
Optical Properties Typical Value Unit SI Test Method
Yellowness Index (pellets) < 25 ASTM E313 (mod)

Storage and handling

Comprehensive material safety data sheets are provided to recommend safe practices during usage. For easy handling and storage, this grade is supplied as free-flowing pellets in 25 kg bags placed in specially designed boxes (40 bags per pallet).

Processing statement

Yparex VA 1902 resin can be added to polyamide to achieve optimum dispersion within the polymer matrix (average particle size below 1 micron) in order to obtain the best performance. Its low viscosity makes it particularly suitable for processing glass-reinforced PA compositions. Compounding parameters that can lead to optimized performance include extruder type, screw design, barrel temperature, screw speed, throughput and residence time. Our experienced technical service engineers and chemists are always on hand to help you in achieving the best performance f rom your processing and compounding operations.

Availability

Africa & Middle East, Europe, North America, Asia Pacific, Latin America.
Product may not be available in one or more countries in the identified availability regions. Please contact your sales representative for complete country availability.

This product, including the product name, shall not be used or tested in any medical application without the prior written acknowledgement of CMP Cologne GmbH as to the intended use. For detailed Product Stewardship information, please contact Customer Service.

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