Trilene® liquid polymers are a family of low molecular weight ethylene-propylene copolymers and ethylene-propylene non-conjugated diene terpolymers. Liquid EPDM polymers are used in a variety of rubber compounding formulations to enhance the process properties and improve the quality of molded products.
Trilene® are excellent plasticizers, crosslinkers, and viscosity modifiers in a wide range of rubber, elastomer, and plastic applications. Trilene® provides exceptional versatility, which makes it suitable for use in a broad range of traditional rubber curing processes by itself or in combination with solid elastomers.
Why Trilene® for Rubber Compounding
Trilene® polymers are used to lower the viscosity of rubber formulations for improved processability.
Trilene® provides improved physical properties and reduced scrap.
Trilene® is an excellent choice for improved hardness in high durometer rubber formulations.
Trilene® is VOC free and non-extractable.
Trilene® facilitates the mixing process, which reduces the overall mixing capital cost.
Trilene® Functionality in Rubber Compounding
Trilene® EPDM based products are featured with a low viscosity compared to traditional EPDM polymers. The low viscosity enables lower intensity mixing requirements, which can contribute to capital savings through the use of less expensive mixing equipment and tools.
Trilene® EPDM polymers are used to substitute high molecular weight elastomers in many rubber compounding formulations. The polymers provide enhanced physical properties and reduced production scrap. Trilene® liquid polymers are also curable, non-extractable, and nonvolatile after cure. The addition of Trilene® at 10 phr typically lowers the Mooney viscosity of rubber compounds by 15 points.
Trilene in Molded Rubber:
Trilene® is ideal for processing automotive and general industrial rubber parts such as brake parts, o-rings, and gaskets. Trilene® can be peroxide or sulfur cured, and it offers various improvements and benefits to rubber and elastomeric formulations:
Reduced Mooney viscosity by 20-25%, compared to control
Suitable for RPA and high sheer rates
Excellent for molding, extrusion, calendaring applications
Lower extractability compared to paraffinic oils such as Sunpar
Lower volatility by thermogravimetric analysis (TGA)
Perfect fluid seals in the molding of brake rubber parts
The following table shows simple formulations of Trilene® polymers and curatives mixed under vacuum. The physical properties shown can be improved significantly by the incorporation of suitable reinforcing fillers:
Trilene® liquid EPDM copolymers and terpolymers are typically used to modify the flow characteristics and enhance the processing of high molecular weight elastomers, thermoplastics, and plastics.
Trilene® is an ideal solution to improve hardness and processing properties in high durometer rubber formulations. Replacing the conventional plasticizers with Trilene® terpolymers maximizes hardness and enhances the compounding process without compromising physical properties or compression set.