I. Introduction to PPA LCF50

PPA LCF50 is a thermoplastic composite material mainly composed of a PPA base material and long carbon fibers with a filling mass percentage as high as 50%. Judging from its unique constituent components, the high proportion of carbon fibers, like a solid framework, is deeply embedded in the PPA base material, endowing the material with unique properties.

Its performance advantages are particularly prominent:

1. Ultra-high strength: A large number of carbon fibers, like a dense network of steel bars, make the strength of this material astonishingly high, far exceeding that of ordinary materials. Whether it is subjected to huge tensile or compressive stresses, it can stand firm like an impregnable fortress, easily coping with various extreme stress conditions.
2. High modulus: The high modulus property it possesses is like having a super-stable internal structure. Under external heavy pressure, it can still maintain its shape unwaveringly. This is undoubtedly a crucial advantage for the manufacturing of precision components, ensuring the accuracy and reliability of components under complex working conditions.
3. Excellent wear resistance: In a high-speed and high-intensity friction environment, the PPA LCF50 composite material is like a warrior in tough armor. Its surface can remain smooth for a long time, effectively reducing the loss caused by friction. Whether facing the friction between high-speed rotating mechanical parts or other harsh friction scenarios, it can show excellent wear resistance.
4. Superior heat resistance: This material seems to be a “heat-resistant elf” in a high-temperature environment and can work stably at extremely high temperatures. Its heat distortion temperature is far beyond that of ordinary materials. Even in a scorching high-temperature furnace, it can remain unperturbed by the high temperature and still maintain good performance and a stable structure.
5. Extremely low shrinkage rate: During the processing, it is like a highly skilled craftsman with extremely precise control over dimensions. During the transformation from raw materials to the final product, the dimensional change is minimal, ensuring the high precision of the product. Whether for complex mechanical parts or electronic components with extremely high requirements for dimensional accuracy, this extremely low shrinkage rate can ensure the stability of product quality.
6. Good chemical stability: When it is placed in a complex chemical environment such as acid and alkali, it is like a guard with strong defense ability, safely resisting the erosion of chemical substances. Whether facing the corrosive attack of strong acid or the chemical challenge of strong alkali, it can hold its ground and keep its chemical properties stable.

In terms of application fields, it is like a shining star in the aerospace field and can be used in the manufacturing of key structural components. In key parts such as the wings and fuselage of an aircraft, its high strength and high modulus characteristics can provide a strong guarantee for the safe flight of the aircraft; in the automotive field, it is suitable for high-performance brake system and other high-temperature and high-pressure parts.

Under the high temperature and strong friction generated during braking, its superior heat resistance and excellent wear resistance can ensure the efficient operation of the brake system; in the high-end industrial equipment field, it can be used to manufacture high-precision wear-resistant parts to meet the industrial production requirements with extremely high requirements for equipment precision and durability.

II. Application Case of PPA LCF50

PPA-LCF50 produced by Carbon (Xiamen) New Material is like a brilliant pearl and has played a vital role during the manufacturing process of a new generation of high-speed trains, .

The braking system components of high-speed trains are like the “safety guards” of the train and need to withstand frequent high-intensity friction and the high temperature generated during train operation.

Traditional materials seem to be powerless under such extreme conditions, with serious wear and easy failure, just like a weak soldier who can hardly hold his ground on a fierce battlefield.

However, LCF50-PPA stands out with its excellent wear resistance and superior heat resistance. Its wear resistance is more than three times that of traditional materials, which means that it can withstand more friction tests under the same friction conditions. Moreover, its heat distortion temperature is as high as 300 °C, like an elf that can dance gracefully in a high-temperature flame.

After the train carried out 10,000 consecutive emergency braking tests, the wear amount of the braking components made of this material is only 1/5 of that of traditional components. This is like a miracle. Traditional components are already severely damaged after a large number of braking tests, while the components made of PPA LCF50 composite material still maintain a good state.

This innovative application not only greatly improves the reliability and safety of the train braking system but also reduces the maintenance cost. In actual operation, for high-speed trains using such braking components, the maintenance cycle is extended from the original inspection every three months to every six months, greatly reducing the manpower and material cost of maintenance.

This fully demonstrates the great potential of PPA LCF50 composite material in the high-speed transportation field and opens up a new path for the development of high-speed trains.

In terms of performance, different carbon fiber reinforced and modified thermoplastic composite raw materials will have differences because factors such as the matrix resin, the content and type of carbon fiber, and the production process are not the same. To accurately evaluate the advantages of a specific composite material, it is necessary to combine the actual application requirements and conduct a comparative test with specific other carbon fiber reinforced plastics. Moreover, thermoplastic composite materials produced by different manufacturers may have different emphases and differences in performance. If you want to obtain more accurate and detailed information, it is recommended to refer to the product manuals and technical data sheets of relevant manufacturers or directly contact us.

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