Carbon Fiber Reinforced Thermoplastic Composites

  • With a Long-Year Cooperation Relationship with Aerospace Enterprise
  • PPS/PEEK/PC/PI Thermoplastic Prepreg Solution
  • Hot Melt Extrusion Impregnation Method
  • Also Provide Thermoset Prepregs Machine


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Continuous Fiber Reinforced Thermoplastic Composites Solution

Jota Machinery is dedicated to providing hot melt prepreg machine solutions for aerospace and automotive industries.

We published the fiberglass UD prepreg machine in 2020.

In 2023, we published the carbon fiber thermoset and thermoplastic prepreg line at the same time.

If you are looking for prepreg machines, please send us an inquiry on this website.

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Jota Machinery: Your Reliable UD Prepreg Slitting Machine Manufacturer in China

Jota is the original composites manufacturing machine manufacturer here in China.

With our own factory and CNC center, equipment quality could be effectively guaranteed.

Please send us an inquiry to make a WhatsApp video call, let’s show you our real-time factory and CNC center.


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Machining Material

  • Visible high-quality components.
  • Famous brands such as Siemens, Yaskawa, Delta, Schneider, Mitsubishi.
  • Self-supporting CNC processed sheet metal, precision parts.
  • Assembly raw materials provided by long-term cooperation suppliers.
Installation and Operation

Installation and operation user manual, wire connection diagram, tension controller guide.

Installation and operation video tutorial.

One-on-one remote video call assistance.

On-site installation and operation guidance.

What's the delivery time?

Around 30-45 days, mainly depends on machine type.

Could you help us to buy other goods?

Sure, it is our honor to work for you.

If the machine's spare parts are broken, where could I get?

We will offer you some parts as backup, in case any part is broken within one year, we will sent you for free.

Could you tell us your client’s contact for us to checking machine on site?

Sure, if we have client in your country, we will offer.

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Fiber Reinforced Composite in Maritime and Marine Industries: A Comprehensive Overview

Composite materials are artificially manufactured materials composed of two or more different materials with specific forms, distributions, and proportions, each possessing different physical and chemical properties.

Composite materials overcome the shortcomings of individual materials while retaining the advantages of each component material.

Moreover, they can exhibit unique performance characteristics that are not present in the raw materials due to the complementary interactions of the components.

Based on the type of reinforcing material, composite materials can be classified into fiber-reinforced composites, particle-reinforced composites, and laminate-reinforced composites.

Fiber reinforced composite can be further divided, based on the matrix material, into polymer-based fiber-reinforced composites, metal-based fiber-reinforced composites, and inorganic non-metal-based fiber-reinforced composites (mainly ceramics, cement, etc.).

Currently, fiber-reinforced metal materials and fiber-reinforced inorganic non-metal materials are still in the development stage, with many issues yet to be addressed.

In contrast, the application of polymer-based fiber-reinforced composites has reached a relatively mature stage.

Fiber reinforced polymer (FRP) play a significant role in the field of polymer fiber reinforced composite, with widespread applications in industries such as aerospace, marine, and automotive.

The matrix of resin-based fiber-reinforced materials can be divided into two types: thermoplastic resins (such as polyamide, thermoplastic polyurethane, etc.) and thermosetting resins (such as epoxy resin, unsaturated polyester resin, etc.).

Reinforcing fibers include glass fibers, aramid fibers, carbon fibers, etc.

Glass fibers are widely used in various fields due to their low cost, while high-performance carbon fiber and aramid fiber-reinforced advanced composite materials are mostly used in aerospace, marine, military, sports, and other fields.

Compared to traditional metal materials, the density of the matrix and fibers in fiber-reinforced resins is relatively low, while the axial strength is high.

Therefore, fiber-reinforced resins have the characteristics of high specific axial strength and specific modulus.

Additionally, due to the corrosion resistance and fatigue resistance of the resin matrix (such as epoxy resin), fiber-reinforced resins also exhibit relatively excellent corrosion resistance and fatigue resistance.

Furthermore, the high specific strength and modulus of fiber-reinforced resins effectively reduce the product’s weight, saving energy and facilitating construction.

This is particularly advantageous in the marine sector, where specific material properties such as corrosion resistance and lightweight are crucial.

With its inherent advantages, fiber-reinforced composites have vast application prospects in the marine sector.

Both domestic and international military and civilian shipbuilders and marine engineering developers have shown strong interest in the research, development, and application of fiber-reinforced composites.

Fiber reinforced composite will play an increasingly important role in shipbuilding, marine oil and gas development, marine engineering, and other fields.

The application of fiber reinforced composite in civil shipbuilding

Currently, FRP fishing boats dominate both domestic and international fishing fleets.

In developed coastal countries in Europe and America, wooden and metal small and medium-sized fishing boats have been largely replaced, with FRP fishing boats accounting for 80%-90% of the market share.

In the United States, all nearshore fishing boats have been replaced by FRP fishing boats, with an annual production of FRP fishing boats exceeding 200,000 tons.

Although Japan started later in the development of FRP fishing boats, through the conversion of wooden fishing boats to FRP, by 2008, the number of FRP fishing boats in Japan reached 350,000, accounting for 90% of the total fishing fleet.

However, the penetration rate of FRP fishing boats in China remains relatively low. As of 2013, there were less than 500 pure composite fishing boats over 20 meters in length nationwide, totaling about 20,000 units, accounting for only about 1% of the total fishing fleet.

Therefore, there is still significant room for the development of FRP fishing boats in China.

The mainstream material for FRP fishing boats is glass fiber-reinforced resin.

Compared to wood and metal materials, fiberglass reinforced plastic (FRP) meets mechanical performance requirements while being lightweight, corrosion-resistant, thermally insulating, and highly customizable.

In terms of sailing performance, FRP boat hulls are typically made in one piece, resulting in a smooth surface that reduces viscous resistance, increases vessel speed, and reduces fuel consumption.

In the same size and power range, the sailing speed of FRP fishing boats is increased by 0.5-1 knot compared to steel fishing boats.

Additionally, due to the higher specific strength of FRP, FRP fishing boats have a lower center of gravity and stronger stability in waves, enhancing their wind resistance.

Economically, the lightweight and high strength of FRP results in lower fuel consumption compared to steel or wooden fishing boats of the same size.

The corrosion resistance and aging resistance of FRP also contribute to the longevity of FRP fishing boats.

Typically, the service life of steel fishing boats is around 10-15 years, requiring regular maintenance each year, while the theoretical service life of FRP fishing boats is generally around 50 years, with lower maintenance frequency and costs.

The excellent thermal insulation of FRP reduces the consumption of refrigerated ice, resulting in ice savings of up to 20%-40% compared to vessels made of other materials.

Therefore, the economic and sailing performance of FRP fishing boats surpasses steel or wooden fishing boats.

Yachts, as high-end durable consumer goods for water recreation, have higher requirements for durability, safety, and speed.

In the past, most composite material yachts used fiberglass reinforced resin.

However, due to the insufficient rigidity of fiberglass reinforced resin and the carcinogenic nature of glass fibers, advanced composite materials with better mechanical and safety performance (such as carbon fiber reinforced resin and aramid fiber reinforced resin) have gradually replaced traditional fiberglass reinforced resin.

The application of carbon fiber reinforced epoxy resin in ship propellers

In terms of ship propulsion systems, carbon fiber reinforced epoxy resin is an ideal material for ship propeller blades and has become one of the main directions in ship propulsion systems.

Traditional propeller blades are generally made of nickel-aluminum-bronze alloy (NAB).

Although NAB materials have advantages such as corrosion resistance, anti-marine organism adhesion, and ease of processing compared to other metal materials, they also have issues such as heavy weight, cavitation erosion, fatigue, and high vibration noise.

However, the characteristics of composite materials are lightweight and high strength, effectively suppressing the problem of overweight propellers when designing composite propellers and providing relatively large space for adjusting the thickness of the blades to achieve the most ideal cavitation performance.

Using carbon fiber composite materials instead of traditional metal propellers and metal shafts can effectively reduce the weight of the vessel and solve the problem of seawater corrosion in the propulsion system.

In 2014, the Japanese vessel “Taiko Maru” attempted to replace its propellers with carbon fiber composite materials, marking the world’s first commercial use of carbon fiber composite material propellers.

Because the weight of carbon fiber composite material propellers is much lower than traditional metal propellers, the diameter of the propeller shaft is also reduced, significantly reducing weight and fuel consumption.

According to the report of the Japan Ship Machinery Association, compared to the period when NAB propellers were installed, the power demand of the “Taiko Maru” with carbon fiber composite propellers reduced by 9%.

Other applications of fiber-reinforced composite

Fiber reinforced composite are widely used in other aspects of ship systems.

For example, due to the lightweight, high strength, corrosion resistance, and acid resistance of fiber-reinforced composites, pipe systems in ships often use fiber reinforced polymer(FRP) composites.

In addition, fiber-reinforced composites are also used in ship rudders, ship equipment, ship interiors, and other areas.

The application of fiber reinforced composite in marine engineering

The main body of marine engineering projects is mostly located at sea or on the seaward side of the coastline.

Fiber-reinforced composites have significant advantages in marine engineering projects (such as offshore oil and gas platforms, marine wind power, floating islands, etc.) due to their basic mechanical properties and excellent designability, ease of construction, fatigue resistance, and corrosion resistance.

The application of fiber-reinforced composites in marine wind power

Wind power, as a renewable green energy source, plays an important role in the field of clean energy.

Currently, mainstream wind power is still dominated by low-speed onshore wind power domestically and internationally.

Although offshore wind resources are abundant, the marine environment imposes higher requirements on wind turbines, with installation costs significantly higher than onshore wind power.

Therefore, to improve the efficiency of offshore wind turbines and reduce operating costs, the trend of large-scale wind turbine blades is the main development direction of offshore wind power.

Large blades have stronger wind capture capabilities and higher power generation efficiency but impose higher requirements on material specific strength, stiffness, fatigue resistance, and resistance to humidity.

Traditional fiberglass wind blades are not suitable as materials for large blades due to insufficient stiffness.

Carbon fiber reinforced resin(also called Pre-preg) can fully meet the above requirements, making it an ideal material for large wind turbine blades.

The density of carbon fiber is only 70% of fiberglass, while the tensile strength is more than 1.5 times that of fiberglass, and the elastic modulus is 3-8 times that of fiberglass.

However, due to the high cost of carbon fiber, it is currently only used in key parts of wind blades, such as blade roots, main beam caps, leading and trailing edges, significantly improving blade resonance, main beam cap interlayer failure, and blade root fatigue failure.


Fiber reinforced composite have matured in their applications in the aerospace industry due to their lightweight and high strength, while their applications in the maritime and marine fields are relatively recent.

The excellent corrosion resistance and fatigue resistance of fiber-reinforced composites make them promise in the maritime and marine fields.

Currently, the main problem restricting the large-scale application of fiber-reinforced composites, especially advanced fiber-reinforced composites, is manufacturing cost.

However, it is foreseeable that with the reduction of manufacturing costs for advanced fiber-reinforced composites, their use can effectively reduce overall operating costs, bringing significant economic benefits while improving safety and reliability.

With the development of China’s naval industry and the continuous exploration of marine resources, the large-scale application of fiber reinforced composite is an inevitable trend.

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