Coupling Agents / Compatibilizers for Plastic Compounds

Casilane HP-669 by Thomas Swan is a sulphur silane coupling agent. It acts as a chemical intermediate and crosslinking agent. It also acts as a vulcanizing agent and activator in the rubber industry due to the presence of four sulphur atoms in its structure.

• It enhances performance by incorporating fillers like silica, fiberglass, talc, mica, and clay, boosting filler–rubber interaction to increase abrasion resistance and overall durability.
• It is suitable for use in NR, IR, SBR, BR, NBR, and EPDM rubber compounds.
• It features poly-sulphidic alkyl structures that align with sulphur deoxidation rates, resisting oxidative degradation while improving heat resistance and crack fatigue performance.
• It reduces puncture risk, rolling resistance, fuel consumption, and carbon-dioxide emissions, supporting carbon reduction efforts and ensuring environmental compliance.
• It acts as a reinforcing agent, enhancing filler performance and significantly improving rubber’s abrasion resistance.
• Casilane HP-669 boosts cut and pressure resistance while reducing hysteresis loss and moisture absorption, thereby enhancing mechanical strength, adhesion, thermal aging resistance, modulus, and flex life.
• It strengthens the bond between substrates and adhesives or coatings, resulting in products that are more durable, reliable, and long-lasting.
• It enhances mechanical properties like tensile strength, modulus, and elongation, making materials tougher, more flexible, and resilient.
• It improves chemical resistance, increasing stability, consistency, and product lifespan.
• It is used in the manufacturing of tires, hoses, rollers, belts, cables, footwear, and molded rubber parts.
• Recommended dosage is 1.0-4.0 PHR.
• It has a shelf life of over 2 years.

SILMALINK AR1028 by Silma acts as a coupling agent in thermoplastic HFFR and a crosslinking agent in silane crosslinkable XL-HFFR compounds based on LLDPE/POE/EVA/EBA filled with ATH & MDH. It is a liquid mixture of functional silanes, radical initiator and additives (anti-scorching, processing aid).

• For Sioplas XL-HFFR compounds, it is designed to perfectly work in combination with SILMASTAB AL2690, AL2691 & AL2692, the masterbatches of tin-based catalysts including stabilizers, metal deactivator, antioxidants and processing aids to reduce die-droll & melt-fracture.
• The recommended dosage level is 0.5-1.0% as coupling agent in highly hydrophobic & crack-resistant HFFR (Halogen-free flame retardant) thermoplastic compounds to produce big armored cables exposed to harsh environmental conditions.
• It offers low smoke emission, superior elongation and low moisture uptake of final compound.
• Moreover, 1.2-2.0% dosage is required as crosslinking agent for 2-steps silane crosslinkable XL-HFFR compounds.
• SILMALINK AR1028 has a shelf life of 1 year.

BIO-MASTER™ SG-20 distributed by DKSH is a chain extender and coupling agent for biopolymers such as PLA, PBAT, PBS, PHA and PET. It is a functional copolymer with ultra-high epoxy content with a particle-like appearance.

• It maximizes the quality of the bio-degradable resins and improves mechanical-, thermal-, & processing properties.
• BIO-MASTER™ SG-20 is available in India, Belgium, Luxembourg, Netherlands and Vietnam.

Fine-Blend® SAM-010 distributed by DKSH is a coupling agent. It is a random styrene-acrylonitrile-maleic anhydride terpolymers and its appearance is light yellow bead.

• It can provide excellent coupling solutions for the PA/ABS/GF, PC/ABS/GF composite material.
• It maximizes the mechanical strength of the composite material.
• It can be processed over a wide range of conditions.
• Fine-Blend® SAM-010 is available in Europe, North America and Asia Pacific.

Fine-Blend® SAG-002 distributed by DKSH is a compatibilizer/thermal stabilizer. It is a styrene-acrylonitrile-glycidyl methacrylate ternary random copolymer with colorless bead appearance.

• It is a general-purpose epoxy polymer.
• It can provide excellent solutions on compatibility for PC/ABS and ABS/PET, ABS/PBT alloy.
• Fine-Blend® SAG-002 significantly enhances the mechanical properties, thermal properties and electroplating performance of plastic alloy.
• It is available in Europe, North America and Asia Pacific.

Fine-Blend® CMG5805 distributed by DKSH is a toughener for nylon and compatibilizer for nylon/polyolefin alloys. It is a maleic anhydride grafted polymer. The base polymer is a polyolefin elastomer with high flexibility and it has white or light-yellow particle appearance.

• It improves impact property, low temperature resistance and reduces water absorption of nylon.
• It can be used in toughened-, flame retardant-, glass fiber reinforced nylon and thermal aging resistant nylon modification system.
• It can also develop a reliable bonding strength between PA/PP or PA/PE alloys.
• Fine-Blend® CMG5805 is available in Europe, North America and Asia Pacific.

Compoline® R UL by Brüggemann acts as a compatibilizer in post-consumer plastic flow. It is a polyethylene blend grafted with maleic anhydride. It is used to well homogenize all the polar impurities such as ethylene vinyl alcohol (EvOH), polyamide (PA) & polyethylene terephthalate (PET) in the polyolefins flows. It is recommended for conventional polyethylene extrusion lines with no special caution, offering excellent processability and thermal stability. It retains the physical properties of polyolefins, including chemical & heat resistance, clarity, dimensional stability, mechanical strength, and recyclability. Due to the nature, Compoline® R UL is suitable in both PE and PP flows. It avoids swelling and bad mechanics due to impurities of polar polymers in polyolefin streams. It has a shelf life of 2 years.

Compoline® R PL by Brüggemann acts as a compatibilizer in post-consumer plastic flow. It is a polyethylene blend grafted with maleic anhydride. It is used to well homogenize all the polar impurities such as ethylene vinyl alcohol (EvOH), polyamide (PA) & polyethylene terephthalate (PET) in the polyolefins flows. It can be readily employed in conventional polyethylene extrusion lines with no special caution, providing excellent processability and thermal stability. Compoline® R PL retains the physical properties of polyolefins, including chemical & heat resistance, clarity, dimensional stability, mechanical strength, and recyclability. It avoids swelling and bad mechanics due to impurities of polar polymers in polyolefin streams. It also recovers the weldability of the final compound, for example, when PP is present into a PE flow. It has a shelf life of 2 years.

SILMALINK AX2292 by Silma is a compatibilizer or/and crosslinker in many reactive applications to build a network copolymerization between organic CH groups and organic/inorganic OH groups in presence of accelerators like peroxide and sulfur. It is 50% of functional silane in thermoplastic granules form. It is used simply to mix with the compound pellets during compound/extrusion or injection molding. In the case of formulation with fillers like MDH, ATH and various number of silicates with the presence of OH groups, it can create a chemical bond with them during crosslinking process. It is suitable in various compounding processes like XLPE, crosslinked EVA and rubbers. It is used at a dosage from 0.5-3% it depends on the needs. SILMALINK AX2292 has a shelf life of 6 months.