Mitsui TAFMER DF640 Impact Modifier_copy20260203110942

Features Of Mitsui TAFMER DF640 Impact Modifier

1. Low density and high transparency with excellent optical properties, the products are lightweight and have good light transmittance, balancing material cost control and appearance display requirements

2. Brittleness temperature below -70°C, maintaining flexibility and impact resistance in a wide temperature range, no embrittlement at low temperature, stable molecular structure with excellent weather and aging resistance

3. Excellent melt fluidity with a higher melt flow index than conventional models of the same series, high efficiency in injection molding and extrusion, suitable for high-speed processing production lines

4. Excellent compatibility with polyolefins such as PP and PE, which can improve the flexibility and impact resistance of the substrate after blending, and easy to realize large-scale modified production

5. Support crosslinking modification, the heat resistance, mechanical properties and chemical resistance are significantly improved after crosslinking, which can expand high-end industrial application scenarios

Typical Applications Of Mitsui TAFMER DF640 Impact Modifier

1. Automotive lightweight exterior parts such as bumpers and fenders, low density and impact resistance, balancing the needs of vehicle weight reduction and impact protection

2. High-transparency packaging films such as stretch wrap film and food cling film, high transparency and puncture resistance, suitable for high-speed film making process

3. Wire and cable insulation layer, stable electrical performance and weather resistance, suitable for wiring insulation in outdoor and low temperature environments

4. Transparent soft daily necessities such as children's toys and soft storage containers, soft and safe, with both light transmittance and deformation resistance

5. Shoe midsole/soft parts, flexible and good resilience, improving the wearing comfort and walking cushioning effect of shoes

Specifications Of Mitsui TAFMER DF640 Impact Modifier

Mitsui TAFMER DF640 Impact Modifier_copy20260203110942 – Frequently Asked Questions (FAQ)

Q1: What is the primary function of TAFMER DF640 in polymer blends?

A: TAFMER DF640 is an ethylene–α-olefin copolymer-based impact modifier designed to enhance toughness and low-temperature impact resistance in rigid polypropylene (PP) and polyethylene (PE) systems, particularly in thin-wall or high-stiffness applications where balanced mechanical performance is required.

Q2: Is TAFMER DF640 suitable for use in food-contact or medical-grade polypropylene formulations?

A: TAFMER DF640 is manufactured under controlled conditions and is commonly used in applications requiring regulatory compliance; however, final suitability for food-contact or medical use depends on the complete formulation, processing conditions, and end-product regulatory evaluation. Users must conduct their own due diligence and consult applicable regional regulations.

Q3: How does TAFMER DF640 compare to traditional EPDM or EPR impact modifiers in PP systems?

A: Unlike conventional elastomeric modifiers, TAFMER DF640 offers finer dispersion and stronger interfacial adhesion with polypropylene due to its tailored copolymer architecture, often resulting in improved clarity, better retention of stiffness, and more consistent impact performance across processing conditions.

Q4: What is the typical dosage range for TAFMER DF640 in polypropylene impact copolymers?

A: Dosage is formulation-dependent, but TAFMER DF640 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—in PP homopolymer or copolymer matrices to achieve targeted impact improvement without compromising melt flow or rigidity.