| Customization: | Available |
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| Main Raw Material: | Epoxy |
| Paint Film Property: | Antiseptic Paint |
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Immerse yourself in the world of **Unsaturated Polyester Resin (UPR)**, a versatile thermosetting resin celebrated for its integral role across industries such as construction, transportation, marine, electronics, and electrical applications. This remarkable material is a cross-linked polymer resulting from the polymerization of an unsaturated dibasic acid, like maleic anhydride, with a diol, such as ethylene glycol. The resulting polyester is then copolymerized with a vinyl monomer, typically styrene, creating a product that meets diverse industrial demands.
1. Basic Information:
Chemical name: Unsaturated Polyester Resin (Unsaturated Polyester Resin)
Appearance: At room temperature, it presents as a light yellow transparent or semi-transparent liquid, transforming into a robust solid post-curing.
Composition: This innovative resin is synthesized through the copolymerization of unsaturated dibasic acids (e.g., maleic anhydride), saturated dibasic acids (e.g., phthalic acid), dibasic alcohols (e.g., ethylene glycol), and a vinyl monomer (styrene), resulting in a versatile and durable material.
Curing method: Utilize an initiator such as methyl ethyl ketone peroxide (MEKP) to cure the resin, either at room temperature or with the application of heat.
2. Physical properties:
Viscosity: Experience a range of 500-2000 mPa.s, adaptable to various product formulations.
Solid content: Offers flexibility with a solid content range of 35%-70%, tailored to different product types.
Gel time: Efficient curing times between 5-30 minutes, influenced by the choice of initiator and surrounding temperature.
Tensile strength: Ranges from 40-100 MPa, ensuring robust performance under tension.
Flexural strength: Boasts a strength range of 80-150 MPa, providing excellent resistance to bending forces.
Hardness: Achieves a Barcol hardness value between 40-50, showcasing its resistance to deformation.
Water absorption: Exhibits low water absorption, along with outstanding moisture resistance.
3. Product type:
Unsaturated polyester resins are expertly classified into categories based on their usage and performance capabilities:
Standard UPR: Designed for crafting a wide range of general FRP products with reliability.
Reinforced UPR: Features enhanced mechanical strength, ideal for fabricating high-strength composite materials.
Flame-retardant UPR: Enriched with flame-retardant properties, perfect for applications demanding fire resistance.
Low shrinkage UPR: Crafted for creating products with exceptional surface quality and reduced shrinkage.
Corrosion-resistant UPR: Engineered for use in chemical equipment and anti-corrosion applications, ensuring durability.
4. Application fields:
FRP products: Ideal for constructing ship hulls, yachts, automotive body parts, storage tanks, and pipes.
Building decoration materials: Perfect for creating artificial stone, decorative panels, and sanitary ware products.
Anti-corrosion equipment: Suitable for chemical storage tanks and as protective linings in chemical equipment.
Coatings: Formulated for industrial anti-corrosion coatings and durable floor paints.
Mould making: Essential in the creation and manufacture of precise molds.
5. Packaging and storage:
Packing: Carefully packed in 25kg or 200kg iron or plastic drums, ensuring safety and stability.
Storage: Keep in a cool, ventilated area away from direct sunlight and open flames. Optimal storage temperature is 15°C-25°C to prevent premature curing.
Shelf life: Typically 3-6 months, contingent on storage conditions.
6. Caution:
During use, avoid prolonged exposure to moisture in the air and UV rays to ensure the optimal curing of the resin.
Always wear protective gloves and masks to guard against contact with the resin and its volatile styrene monomer, safeguarding skin and eyes.
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