Guolan New Materials (Shandong) Co., Ltd. is one of the leading manufacturers and suppliers of triethyl phosphate plasticizer in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk top-quality triethyl phosphate plasticizer from our factory.
Product Overview
Triethyl phosphate plasticizer grade is specifically formulated for applications requiring excellent plasticizing performance combined with flame retardant properties. As a phosphate ester plasticizer, TEP provides superior flexibility, durability, and fire resistance to a wide range of polymer systems including PVC, cellulose acetate, vinyl polymers, and synthetic rubbers. Unlike phthalate-based plasticizers, TEP offers inherent flame retardancy, making it the preferred choice for applications requiring both flexibility and fire safety compliance.
The plasticizer grade of TEP is optimized for compatibility with a broad spectrum of polymer matrices, ensuring uniform dispersion without migration or exudation over the product lifetime. Its low volatility minimizes weight loss during processing and service, while its excellent hydrolysis resistance ensures long-term performance stability in demanding environments. Guolan New Materials produces this grade under strict quality control to meet the exacting standards of global plastic and rubber manufacturers.
With annual production capacity of 15,000 MT and continuous process technology, Guolan ensures consistent quality, competitive pricing, and reliable supply for B2B customers worldwide. Our plasticizer-grade TEP is suitable for use in cable jacketing, flooring, wall coverings, synthetic leather, hoses, belts, and a wide range of molded and extruded products.
Technical Parameters
|
Parameter |
Specification |
|
Chromaticity, APHA |
≤10 |
|
Refractive Index (nD20) |
1.4050-1.4070 |
|
Acid Value, mg(KOH)/g |
≤0.05 |
|
Moisture (H2O), w% |
≤0.100 |
|
Density (20°C), g/mL |
1.068-1.072 |
|
Content, % |
≥99.500 |
Feature Highlights
- Superior Plasticizing Efficiency: Provides excellent flexibility and workability to PVC, cellulose acetate, and vinyl polymers at lower addition levels compared to conventional phthalate plasticizers, reducing overall formulation costs.
- Inherent Flame Retardancy: Unlike standard plasticizers, TEP provides built-in flame retardant properties, helping products achieve fire safety standards without additional flame retardant additives.
- Excellent Compatibility: Uniformly disperses in most polymer matrices without migration, blooming, or exudation, ensuring consistent product performance throughout its service life.
- Low Volatility: High boiling point minimizes evaporation during high-temperature processing (extrusion, molding, casting), reducing material loss and maintaining workplace air quality.
- Good Hydrolysis Resistance: Maintains plasticizing performance in humid environments and during long-term storage, preventing hardening or brittleness development in finished products.
- Cost-Effective Alternative: Offers a compelling value proposition compared to specialized plasticizers, combining plasticizing and flame retardant functions in a single additive.


Industry Application Scenarios
PVC Compounding & Processing
TEP plasticizer is widely used in rigid and flexible PVC products including cable jacketing, flooring, wall coverings, synthetic leather, and hose manufacturing. It provides excellent flexibility without migration issues, while its inherent flame retardancy helps PVC compounds meet building code requirements for flame spread resistance.
Cellulose Acetate & Film Production
As a plasticizer for cellulose acetate, TEP improves flexibility, transparency, and processability in film and sheet production. It is particularly valued in photographic films, packaging films, and protective coatings where clarity and durability are essential.
Synthetic Rubber & Elastomers
TEP enhances flexibility, low-temperature performance, and aging resistance in natural and synthetic rubbers. It is used in rubber hoses, belts, gaskets, seals, and footwear components where both mechanical performance and fire safety are required.
Coatings & Adhesives Formulation
In industrial coatings and pressure-sensitive adhesives, TEP plasticizer improves film formation, flexibility, and adhesion while providing flame retardant benefits. It is compatible with nitrocellulose, acrylic, and polyurethane coating systems used in automotive, aerospace, and construction industries.
FAQ
Q: What is the recommended dosage of TEP plasticizer in PVC formulations?
A: Typical addition levels range from 10% to 40% by weight of PVC resin, depending on the desired flexibility and hardness specifications. Our technical team can provide specific formulation recommendations.
Q: Is TEP plasticizer compatible with food-grade PVC?
A: TEP is not approved for direct food contact applications. Please consult our sales team for food-grade plasticizer alternatives if needed.
Q: How should TEP plasticizer be stored?
A: Store in a cool, well-ventilated warehouse away from direct sunlight and heat sources. Keep containers tightly closed when not in use. Shelf life is 24 months from date of manufacture when stored properly.
Q: Can TEP plasticizer be used with recycled PVC?
A: Yes, TEP shows good compatibility with recycled PVC streams and can help improve the processability and properties of recycled PVC compounds.
Q: What packaging sizes do you offer for TEP plasticizer?
A: We offer 250kg iron drums, 500kg plastic drums, and bulk tank car deliveries. Custom packaging arrangements are available for regular customers.
Q: How does TEP plasticizer compare with conventional phthalate plasticizers?
A: TEP reaches comparable flexibility at lower addition levels than conventional phthalates and, unlike them, brings inherent flame retardancy with it. That dual action can remove a separate flame retardant from the formulation while supporting phthalate-reduction commitments.
Q: Will the plasticizer migrate or bloom out of the finished product?
A: TEP disperses uniformly through PVC, cellulose acetate and vinyl polymer matrices and resists migration, blooming and exudation, so flexibility and surface appearance are maintained over the service life of the part rather than degrading after the first few months.
Why Choose Guolan New Materials
- Plasticizing Plus Flame Retardancy In One Additive: TEP delivers flexibility and fire resistance simultaneously, which simplifies formulations that would otherwise need a phthalate plasticizer and a separate flame retardant working against each other.
- No Migration, No Bloom: Uniform dispersion without exudation keeps cable jacketing, flooring and synthetic leather surfaces clean through long service life - the failure mode that most often triggers customer complaints on plasticized PVC.
- Survives Humid And Warm Service: Good hydrolysis resistance means plasticizing performance holds up in humid environments and during long-term storage, preventing the hardening and embrittlement that shortened-life phthalate systems show.
- Low Loss During Hot Processing: The high boiling point minimizes evaporation during extrusion, molding and casting, reducing material loss and keeping workshop air cleaner for operators.
- Grade Consistency You Can Audit: Content of 99.5% minimum, chromaticity of 10 APHA maximum and acid value of 0.05 mg KOH/g maximum are reported on every COA, so incoming QC can verify each drum against the same specification.
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