Fiber Reinforced Plastic (FRP) Tank

Physical property：

(1) Lightweight and High Strength:

Fiberglass reinforced plastic (FRP) tanks have a relative density between 1.5 and 2.0, which is only 1/4 to 1/5 of carbon steel. However, their tensile strength is comparable to or even exceeds that of carbon steel. The specific strength of FRP can rival advanced alloy steels. Therefore, they are highly effective in applications where weight reduction is crucial, such as in aviation, rockets, spacecraft, high-pressure vessels, and other products that need to minimize their own weight. Some epoxy FRP materials can achieve tensile, bending, and compressive strengths of over 400 MPa.

(2) Excellent Corrosion Resistance:

FRP is an excellent corrosion-resistant material, with resistance to atmospheric conditions, water, general concentrations of acids, alkalis, salts, various oils, and solvents. It has been widely used in various aspects of chemical corrosion protection and is replacing carbon steel, stainless steel, wood, and non-ferrous metals.

(3) Good Electrical Properties:

FRP is an excellent insulating material used in the production of insulators. It maintains good dielectric properties even at high frequencies. It has good microwave transparency and has been widely used in radar antenna covers.

(4) Good Thermal Performance:

FRP has low thermal conductivity, with a thermal conductivity rate of 1.25 to 1.67 kJ/(m·h·K) at room temperature, only 1/100 to 1/1000 of metals. It is an excellent insulating material. Under instantaneous high-temperature conditions, it is an ideal thermal protection and erosion-resistant material, capable of protecting spacecraft from high-speed gas flow erosion at temperatures above 2000°C.

(5) Excellent Design Flexibility:

① It can be flexibly designed to meet various structural product requirements, ensuring good overall product integrity. ② It allows for the selection of materials to meet specific product performance requirements, such as corrosion resistance, resistance to instantaneous high temperatures, high strength in certain directions, good dielectric properties, and more.

(6) Excellent Processability:

① It can flexibly choose forming processes based on product shape, technical requirements, usage, and quantity. ② The process is simple and can be molded in a single step, resulting in significant cost-effectiveness, especially for products with complex shapes and low quantities, highlighting its superior process advantages.

Due to the flexibility in design, excellent structural performance, and the ability to adjust the physical and chemical properties of fiberglass-reinforced plastic tanks and non-standard devices through changes in resin systems or reinforcement materials, they can meet the needs of different media and operating conditions. The tank’s load-bearing capacity can be adjusted through variations in the structural layer thickness, winding angle, and wall thickness structure and design. This allows for the production of fiberglass-reinforced plastic tanks and non-standard devices with different pressure ratings or specific performance characteristics, surpassing the capabilities of isotropic metallic materials.