Audited Supplier
Graphene
Graphene
China
Product Description
Excellent mechanical properties
The strength of graphene fiber is 20-30% higher than that of ordinary UHMWPE fiber, reaching 2.5-3.8GPa, the modulus reaches 320GPa, and the elongation at break is about 3.5%. Compared with carbon fiber, glass fiber and aramid fiber, graphene fiber has greater work of fracture. Its specific gravity is about 0.91, which is nearly 1/2 of aramid and about 1/2 of high-modulus carbon fiber. It is lighter than water and is one of the few super fibers in the world with a density less than 1.0.
Best impact resistance
The impact resistance of graphene fiber is higher than that of carbon fiber, aramid fiber and general glass fiber composite materials. Its specific impact total absorbed energy Et/p is 1.8, 2.6 and 3 times that of carbon, aramid and E-glass fiber respectively, and its bulletproof capability is 2.6 times higher than that of aramid armor structure. The energy absorption under high-speed impact is twice that of aramid fiber and nylon fiber. Therefore it is very suitable for making bulletproof materials.
Best wear resistance
The wear resistance of materials generally decreases with increasing modulus, but the opposite is true for graphene fibers. The breaking cycle number n of the rope is 8 times higher than that of aramid fiber, and its wear resistance and bending fatigue are also higher than that of aramid fiber, so it is suitable for making ropes.
Best chemical resistance
Graphene fiber has good resistance to solvent dissolution and will not lose its strength due to contact with acids, alkalis, polluted seawater, etc. After testing, the strength is not affected by immersion in various media, such as oil, acid and alkali solutions for half a year; after immersion in water for 2 years, the original strength is still retained. However, the strength of aramid fiber decreases greatly in strong acid and alkali.
Best light fastness
The sunlight resistance of graphene fiber is the best among composite fibers. Aramid fiber is not resistant to ultraviolet rays and must be protected from direct sunlight when used. The base material of graphene fiber is the most light-resistant fiber among organic fibers due to its advantages in chemical structure. Even after 1500 hours of light exposure, the strength of the fiber The retention rate is still around 80%, while other fibers are below 50%.
Best bending properties
Graphene fiber has excellent bending properties and can form knitted coils and knotted heads without breaking. It has high hooking strength and looping strength, and has better looping performance than aramid fiber. In comparison, glass fiber, carbon fiber and aramid fiber have poor bending properties.
Unique anti-static properties
Graphene fiber has unique anti-static properties. Its surface resistance can reach 107 ohms and its volume resistance can reach 108 ohms. It is suitable for manufacturing electromagnetic shielding and anti-static materials and can be widely used in the field of electronic products with anti-static and electromagnetic shielding requirements. .
Excellent thermal properties
The melting point of ordinary UHMWPE fiber is about 125°C, and the melting point of graphene fiber is about 60°C higher than it. The maximum long-term use temperature of graphene fiber is about 150°C. The original properties can be maintained for a short period of time at temperatures higher than this, which is very important for processing when used in composite materials. In addition, due to the content of graphene, graphene fiber reinforced plastics have good thermal conductivity, and its thermal conductivity is as high as steel, about 60w (m.k)
The strength of graphene fiber is 20-30% higher than that of ordinary UHMWPE fiber, reaching 2.5-3.8GPa, the modulus reaches 320GPa, and the elongation at break is about 3.5%. Compared with carbon fiber, glass fiber and aramid fiber, graphene fiber has greater work of fracture. Its specific gravity is about 0.91, which is nearly 1/2 of aramid and about 1/2 of high-modulus carbon fiber. It is lighter than water and is one of the few super fibers in the world with a density less than 1.0.
Best impact resistance
The impact resistance of graphene fiber is higher than that of carbon fiber, aramid fiber and general glass fiber composite materials. Its specific impact total absorbed energy Et/p is 1.8, 2.6 and 3 times that of carbon, aramid and E-glass fiber respectively, and its bulletproof capability is 2.6 times higher than that of aramid armor structure. The energy absorption under high-speed impact is twice that of aramid fiber and nylon fiber. Therefore it is very suitable for making bulletproof materials.
Best wear resistance
The wear resistance of materials generally decreases with increasing modulus, but the opposite is true for graphene fibers. The breaking cycle number n of the rope is 8 times higher than that of aramid fiber, and its wear resistance and bending fatigue are also higher than that of aramid fiber, so it is suitable for making ropes.
Best chemical resistance
Graphene fiber has good resistance to solvent dissolution and will not lose its strength due to contact with acids, alkalis, polluted seawater, etc. After testing, the strength is not affected by immersion in various media, such as oil, acid and alkali solutions for half a year; after immersion in water for 2 years, the original strength is still retained. However, the strength of aramid fiber decreases greatly in strong acid and alkali.
Best light fastness
The sunlight resistance of graphene fiber is the best among composite fibers. Aramid fiber is not resistant to ultraviolet rays and must be protected from direct sunlight when used. The base material of graphene fiber is the most light-resistant fiber among organic fibers due to its advantages in chemical structure. Even after 1500 hours of light exposure, the strength of the fiber The retention rate is still around 80%, while other fibers are below 50%.
Best bending properties
Graphene fiber has excellent bending properties and can form knitted coils and knotted heads without breaking. It has high hooking strength and looping strength, and has better looping performance than aramid fiber. In comparison, glass fiber, carbon fiber and aramid fiber have poor bending properties.
Unique anti-static properties
Graphene fiber has unique anti-static properties. Its surface resistance can reach 107 ohms and its volume resistance can reach 108 ohms. It is suitable for manufacturing electromagnetic shielding and anti-static materials and can be widely used in the field of electronic products with anti-static and electromagnetic shielding requirements. .
Excellent thermal properties
The melting point of ordinary UHMWPE fiber is about 125°C, and the melting point of graphene fiber is about 60°C higher than it. The maximum long-term use temperature of graphene fiber is about 150°C. The original properties can be maintained for a short period of time at temperatures higher than this, which is very important for processing when used in composite materials. In addition, due to the content of graphene, graphene fiber reinforced plastics have good thermal conductivity, and its thermal conductivity is as high as steel, about 60w (m.k)
