Special monomeric plasticizers for PVC perform well as standalone formulation components. However, in certain applications, their performance can be enhanced by combining them with polymeric additives. This allows for a more precise balance of processability, heat resistance, cold flexibility, migration resistance, and product lifetime.
For such formulations, the Edenol line includes the trimellitate Edenol T810T, the cold-resistant sebacate Edenol 888, as well as polymeric products Edenol 1215 and Edenol 1233. These materials are in stock at Revada Plastic and available for laboratory and industrial trials.
Why the Combination Works More Effectively
Combining monomeric and polymeric components provides two practical effects: it facilitates processing and reduces plasticizer loss during service. Due to their higher molecular weight, polymeric products are better retained in the PVC matrix, but they can be more viscous and harder to process on their own.
Edenol T810T and Edenol 888 reduce system viscosity, improve the distribution of the polymeric fraction in PVC, and simplify processing. They impart initial flexibility to the material and lower the glass transition temperature. Edenol 1215 and Edenol 1233 serve a retention function: their long chains restrict the mobility of the monomeric component and reduce its migration from the material.
As a result, the monomeric fraction controls processability, flexibility, and the desired level of elasticity, while the polymeric fraction enhances the long-term stability of the formulation, reducing volatility, migration, and extraction of the monomeric plasticizer from the finished product.
Key Effects of the Synergistic System
The combination of Edenol T810T or Edenol 888 with Edenol 1215 or Edenol 1233 allows the formulator to control multiple parameters of the PVC compound simultaneously. This approach is particularly useful where products are subject to high demands for service life, temperature resistance, cold resistance, and resistance to oils, water, fats, fuels, or other environments.
Main effects:
- reduced migration and surface exudation of the plasticizer;
- lower volatility upon heating;
- improved resistance to extraction by oils, water, fats, gasoline, fuels, and other media;
- maintenance of elasticity during long-term use;
- increased thermal stability, including higher decomposition onset temperature and T50%;
- preserved flexibility at low temperatures in formulations based on Edenol 888;
- improved balance of mechanical properties: tensile strength, modulus of elasticity, wear resistance, and elongation at break.
In trials with the addition of 30 phr Edenol 1215 or Edenol 1233 per 100 phr PVC, a sharp reduction in monomeric plasticizer loss was observed. In a properly optimized formulation, migration can be reduced almost to zero. This helps stabilize the properties of the finished product, slow surface changes over time, and better preserve elasticity during service.
Edenol T810T and Edenol 888: Different Roles in Formulation
Edenol T810T is a trimellitate plasticizer used where heat resistance, low volatility, and property stability under heating are important. It is particularly suitable for high-temperature cable compounds, automotive components, and technical products operating under thermal load.
Edenol 888 is a sebacate-based product for cold-resistant PVC compounds. It enables materials to maintain flexibility at temperatures down to −50 °C, making it especially suitable for hoses, seals, cable materials, and products for cold climates.
Edenol 1215 and Edenol 1233 can be combined with either product. In formulations with Edenol T810T, they enhance long-term thermal stability and reduce plasticizer loss. In formulations with Edenol 888, they help combine cold resistance with improved migration and extraction resistance.
How to Adjust Ratios
In practical formulations, part of the monomeric plasticizer can be replaced by polymeric plasticizer. A working guideline is to replace 20–30% of the monomeric fraction with Edenol 1215 or Edenol 1233. This approach preserves processability and softness while increasing resistance to migration, volatility, and environmental exposure.
The specific ratio depends on the application: requirements for cold resistance, heat resistance, hardness, elasticity, processing conditions, and service environment. Therefore, ratio selection should be based on overall property balance rather than a single parameter.
Applications of Such Systems
| Application Area | Why It Matters |
| High-temperature cable compounds | Low volatility, heat resistance, and retention of properties during long-term use |
| Cables, hoses, and seals for cold climates | Maintenance of flexibility at low temperatures, in Edenol 888-based formulations down to −50 °C |
| Automotive interior components | Heat resistance, reduced surface exudation of plasticizer, and minimized window fogging |
| Protective coatings and technical products | Resistance to oils, water, fuels, and other service environments |
| Food-contact films and coatings | Fat resistance and reduced plasticizer migration |
| Medical PVC products | Reduced migration into contacting media and material property stability |
In these applications, it is important not only to achieve the desired initial softness but also to preserve material properties under exposure to temperature, cold, oils, water, fats, or other environments. Therefore, selecting a plasticizer system is a dedicated technological task rather than a simple replacement of one component with another.
Revada Plastic Approach
Revada Plastic offers specialty Edenol products for producers of plasticized PVC and assists in selecting solutions for specific applications. Edenol T810T, Edenol 888, Edenol 1215, and Edenol 1233 can be used as standalone materials or as part of an integrated formulation scheme.
All Revada Plastic products are available for testing at Revada’s warehouse. Samples and recommendations for component ratios tailored to your formulation, equipment, and processing conditions can be requested.
