Market prospects and development trends of carbon fiber prepreg
2021-05-18
What is carbon fiber prepreg?
Prepreg is a prepreg sheet product made by impregnating a matrix into reinforced fibers, serving as an intermediate material for composite materials. Carbon fiber prepreg is a composite material made from reinforcements such as carbon fiber yarn, resin matrix, release paper, and other materials, processed through coating, hot pressing, cooling, laminating, and winding, also known as carbon fiber prepreg fabric.
Performance of carbon fiber prepreg
● High strength, low density: The strength of carbon fiber prepreg can reach 6-12 times that of steel, with a density only one-fourth that of steel.
● Good plasticity: Can be shaped into any form according to the mold shape, easy to form and process.
● Corrosion-resistant, long lifespan.
Types of carbon fiber prepreg
There are unidirectional carbon fiber prepreg and woven carbon fiber prepreg. Unidirectional carbon fiber prepreg has high strength in the fiber direction and is usually used in laminated boards with different directional combinations, while woven carbon fiber prepreg has different weaving methods, with strength approximately equal in both directions, applicable to various structures. Currently, carbon fiber prepreg mainly uses thermosetting materials: epoxy resin. Since the resin curing state of the prepreg is B-stage, the rolled prepreg must be stored in a low-temperature environment. The time that carbon fiber prepreg can be stored at room temperature is called the storage period. If there are no low-temperature storage conditions, the production quantity of the prepreg must be based on the principle that it can be used up within the storage period.
Carbon fiber prepreg is widely used in fishing gear, sports equipment, and other fields.
Market prospects for carbon fiber prepreg: The carbon fiber industry includes not only the production processes of polymerization, precursor, and carbon fiber but also the production and application of downstream carbon fiber prepreg and composite materials. According to reports, the global carbon fiber prepreg market reached $4 billion in 2019, maintaining rapid growth, with a market growth rate exceeding 11%. Due to soaring production costs and increasing overall demand, the price of carbon fiber prepreg will rise at a faster rate. The number of global prepreg suppliers is continuously increasing, and the overall market is full of innovative vitality, with improved product performance.
Future development trends of carbon fiber prepreg
With the development of the carbon fiber industry, carbon fiber prepreg products have shown new prepreg development trends in recent years. The advantages of large-tow carbon fiber prepreg in the industrial field are becoming increasingly apparent.
Specialized prepreg for different applications: For example, in the automotive field, there is a high requirement for short-term forming of parts. To meet the subsequent rapid forming process, it is necessary to develop quick-curing prepreg with a curing time of less than 5 minutes.
Prepreg co-cured with other materials: Prepreg can co-cure with infused resin, can co-press cure with SMC, and can also be co-press cured with unidirectional prepreg + fabric prepreg + SMC.
Functionalized prepreg: Prepreg made by mixing nano carbon tubes or short-cut carbon fibers into the resin to create wave-absorbing functions, and other trends.
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