KEPA 1130 is a special polymer rubber of the ethylene-propylene EPDM, consisted mainly with single molecular chain structure, grafted with maleic anhydride. It is superior in the resistances against heat, ozone, and weather, also shows excellent characteristic of the impact strength in low temperature as it is constituted with amorphous rubber.

Polymer Name: Ethylene Propylene Diene Terpolymer (EPDM), Maleic Anhydride Grafted Polymer

Density: 880.0 - 880.0 kg/m³

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Plastics & Elastomers Functions

Features & Benefits

Features
  • Excellent impact strength (Notched Sample)
  • Maintain the low temperature characteristic at -40°C or below
  • Improve the compatibility when mixing with engineering plastics
  • Maintain excellent flexibility/elasticity
  • Minimize the hygroscopicity to shorten drying time
  • Outstanding in sustaining the flexural modulus of the final products

Applications & Uses

Application

Impact Modifier : KEPA is used for the impact modifier not only in room temperature but also in low temperature. It keeps the superior impact strength in low temperature for polar polymer, such as nylon, as well as for polyolefin.

Coupling Agent :  KEPA is acting as a coupling and adhesion agent by increasing the adhesion and improving the compatibility of polyolefin materials. It also can improve the compatibility of polar/nonpolar polymers and other fillers so as to reduce the cost and to exert out standing characteristics in mechanical properties and thermal stability.

Raise the adhesion/ stickiness ofpolar materials : KEPA improves the compatibility and adhesion of polyolefin, nonpolar material, with polar materials, such as nylon, polycarbonate, polyurethane, etc., to gain the improving effect of mechanical properties.

 

 

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Flow Rate(2.16kg/230°C)3ASTM D 1238
Specific Gravity0.88g/cm3ASTM D 3575
Glass Transition Temperature-46°C°CDSC
Volatile Component0.1%ASTM D 1416
Heu(yellowness)14AM S 77-07

Technical Details & Test Data

Low Temperature Characteristic

KEPA 1130 is a product to reinforce the impact strength of conventional nylon, which
has been produced by denaturalizing the amorphous EPDM rubber in order to provide
excellent characteristics particularly in low temperature (-400°C - 500°C).

KEPA 1130 - Low Temperature Characteristic

Fig 1: Impact strength nylon 6 / KEPA 1130 (80/20) Blend

 

KEPA 1130 - Low Temperature Characteristic - 1

Fig 2: Impact strength nylon 6.6 / KEPA 1130 (80/20) Blend

Flow Rate

KEPA 1130 exerts superior flow rate, even it is constituted with amorphous EP(D)M rubber, so as to show excellent processability and workability.

KEPA 1130 - Flow Rate

Fig 1: Mah modificated EP(D)M of MFR (Melt Flow Rate)

 

KEPA 1130 - Flow Rate - 1

Fig 2: PA6/ Mah modificated EP(D)M Blend MFR(Melt Flow Index)

Packaging & Availability

Packaging Type

Storage & Handling

Storage

KEPA is produced in pellet form and packed in an anti-moisture bag by 20kg for the worker's convenience, which can be put into the internal mixer (extruder) as it is without requiring any other additional process.