After processing, a finished product must retain its appearance, flexibility, and performance properties throughout storage, transportation, installation, and service life. It is affected by moisture, temperature fluctuations, contamination, mechanical loads, radiation, and microorganisms.
For a process engineer, it is not only important to achieve the required properties after processing, but also to account for factors that gradually degrade the product over time. For flexible PVC, one such risk is biodegradation.
Rigid, unplasticized PVC typically demonstrates high bioresistance. Flexible compounds contain organic low-molecular-weight substances — primarily plasticizers. In the presence of moisture, heat, and contamination, these substances can become a growth medium for microorganisms. As a result, the surface deteriorates, and finished products lose their elasticity and performance properties faster.
Why Flexible PVC Needs Biocidal Protection
Biodegradation of plasticized PVC is more often associated not with destruction of the polymer matrix itself, but with the action of microorganisms on individual formulation components. Products are particularly vulnerable when used in wet environments, outdoors, in contact with water, soil, organic contaminants, or in high-humidity indoor settings.
Microorganisms can consume formulation components as a nutrient source, alter the surface through metabolic by-products, or form visible colonies. For a processor and end customer, this means deterioration of appearance, reduced consumer value, and a shorter service life.
Under such conditions, a biocidal additive becomes an important part of the formulation. It suppresses the growth of fungi, algae, and microbial contamination, helping to preserve the surface and extend the product’s service life.
Biorex D10 P for Plasticized PVC
Biorex D10 P is used in plasticized PVC products where there is a risk of biological contamination. The product provides fungicidal action and resistance to algae growth.
The additive is resistant to ultraviolet radiation and water leaching, making it suitable for both indoor and outdoor applications where the product is exposed to moisture, light, and variable conditions.
Thermal stability up to 200 °C makes it compatible with calendering, extrusion, and plastisol technologies — all of which are common in flexible PVC processing.
The solution form allows Biorex D10 P to distribute evenly throughout the compound, adding biocidal functionality without requiring significant changes to the production process.
Where Biocidal Protection for PVC Is Most Critical
Biocidal protection is especially relevant for flexible PVC products used in wet environments, outdoors, or in contact with contaminants.
Tarpaulins, membranes, synthetic leather, flooring and protective coatings, hoses, plastisol coatings, and technical fabrics are applications where it is critical that flexibility is maintained not only initially, but also after transportation, installation, and long-term service. Biorex D10 P provides an additional protective barrier and reduces the risk of fungal and algal growth, including in high-humidity environments.
Practical Effect of Use
Biorex D10 P improves the bioresistance of flexible PVC and helps extend the service life of the finished product.
Key Benefits of Biorex D10 P:
- Provides fungicidal protection for plasticized PVC;
- Increases product resistance to algae growth;
- Maintains effectiveness under UV radiation exposure;
- Resistant to water leaching;
- Withstands processing temperatures up to 200 °C;
- Distributes evenly throughout the compound due to its solution form;
- Reduces the effect of residual moisture;
- Extends the service life of flexible PVC products.
Revada Plastic Approach
Revada Plastic positions Biorex D10 P as a specialized additive for protecting plasticized PVC against biodegradation. The product is used in formulations for finished products that come into contact with moisture, contaminants, and microorganisms.
Revada Plastic specialists assist in selecting the appropriate dosage of Biorex D10 P, evaluating its compatibility with a given formulation, and conducting trials under specific production conditions.
This approach enables the addition of biocidal functionality to a PVC compound, improves durability, and preserves the overall formulation balance.
