LG Chem LC168 Impact Modifier

Features Of LG Chem LC168 Impact Modifier

1. Excellent ultra-low temperature impact resistance: Tg as low as -58℃, outstanding toughness in low-temperature environment, significantly improving the normal/low temperature impact strength of composite materials and reducing the risk of cracking

2. High toughness, elasticity and low hardness: Shore A46 low-hardness characteristic, elongation at break ＞500%, excellent flexibility and elasticity, suitable for products requiring high flexibility

3. Good filler acceptability: Well compatible with various fillers, flexible formula adjustment, meeting the filler addition requirements of different modification processes

4. Low density and lightweight: Density only 0.862g/cm³, effectively reducing product weight and conforming to the trend of lightweight design

5. Good processability: MFR 1.2g/10min, Mooney Viscosity 20MU, fluidity suitable for injection molding, extrusion and other processes with high molding efficiency

Typical Applications Of LG Chem LC168 Impact Modifier

1. Automotive Field: Modification of interior parts (instrument panels, door panels, armrests) and exterior parts (bumpers, fenders), improving the low-temperature impact resistance and flexibility of components and ensuring service durability

2. Wires & Cables: Cable insulation material, providing excellent electrical insulation performance and low-temperature flexibility, suitable for wiring requirements in different environments

3. Shoe Sole Materials: Manufacturing high-elastic and high-wear resistance shoe soles, low hardness improves wearing comfort, and the combination of elasticity and toughness extends the service life of shoes

4. Polymer Modification: Impact modifier for polyolefins such as PP and PE, effectively improving the impact performance of substrates and expanding the application scenarios of substrates

Specifications Of LG Chem LC168 Impact Modifier

LG Chem LC168 Impact Modifier – Frequently Asked Questions (FAQ)

Q1: What is the primary function of LG Chem LC168 in polymer formulations?

A: LG Chem LC168 is a reactive acrylic impact modifier designed to significantly enhance the toughness and low-temperature impact resistance of rigid thermoplastics—particularly PVC, polycarbonate, and PC/ABS blends—without compromising transparency or processability.

Q2: How does LC168 differ from conventional MBS or ABS-based impact modifiers?

A: Unlike traditional MBS or ABS modifiers, LC168 features a core-shell acrylic architecture with tailored surface reactivity, enabling stronger interfacial adhesion with polar engineering resins. This results in improved dispersion stability during melt processing and more consistent impact performance across varying thermal histories.

Q3: Is LC168 suitable for applications requiring regulatory compliance for food contact or medical devices?

A: LC168 is formulated without intentionally added heavy metals or known SVHC substances, and it has been successfully incorporated into food-contact-compliant compound systems by several customers. However, final regulatory approval depends on the full formulation, processing conditions, and target jurisdiction—users must conduct their own due diligence and testing.

Q4: What is the typical dosage range for LC168 in PVC or PC blends?

A: LC168 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—depending on the base resin, desired impact performance level, and other additives present. Optimal dosage should be determined through application-specific rheological and mechanical testing.

Q5: Does LC168 affect the thermal stability or color development of PVC during processing?

A: LC168 exhibits good thermal stability under standard PVC processing conditions and does not contribute to premature discoloration. Its acrylic composition avoids the yellowing tendencies sometimes associated with certain rubber-based modifiers, supporting consistent color retention in light-colored or transparent applications.