LFT-G® Polypropylene Homopolymer Long Carbon Fiber Filled Compounds Injection Molding Pellets

General characteristics of PP row materials

1. Colorless, tasteless, non-toxic
2. Due to the crystallization of PP, the natural milky translucent, transparency is better than PE
3. The specific gravity is as low as 0.9, which is smaller than water and is almost one of the lightest plastics
4. Good toughness, especially repeated bending resistance
5. Better heat resistance than PE
6. Good hydrolysis resistance, high temperature steam disinfection
7. Chemical resistance, especially acid resistance is very good, can be due to the storage of concentrated sulfuric acid containers
8. Outdoor use is easy to be aging by light and ultraviolet rays

Long Carbon Fiber Reinforced PP Compounds

Carbon fiber reinforced composite (CFRP) is composed of carbon fiber as a reinforcement material and resin as a matrix material, and early carbon fiber composite materials are mainly used in the military field. With the improvement of material properties, molding process and price cost, carbon fiber composite materials are more and more used in general industry and sports and leisure fields.

Polypropylene is a low cost, excellent performance, a wide range of uses of polymer materials, through carbon fiber reinforcement, can improve the strength of polypropylene materials, thermal deformation temperature and dimensional stability, expand the application of polypropylene materials, widely used in electronic appliances, automobiles, construction and other fields. Especially in the automotive field, with the development of new energy vehicles and the trend of lightweight vehicles, carbon fiber reinforced materials are more and more widely used in the automotive field.

Carbon fiber reinforced polypropylene material features:
High mechanical properties
In line with the design trend of new energy vehicles
The lower density meets the needs of lightweight vehicles

The modified PP reinforced by carbon fiber has a series of advantages, such as light weight, high modulus, high specific strength, low coefficient of thermal expansion, high temperature resistance, heat shock resistance, corrosion resistance, good vibration absorption, etc., and can be applied to auto parts such as automobile sub-instrument assembly.

(PP-LCF)

Why are these pellets so long?

LFT long fiber reinforced thermoplastic engineering materials,compared to ordinary short fiber reinforced thermoplastic materials (fiber length is less than 1-2 mm), the LFT process produces thermoplastic engineering material's fibers in lengths of 5-25 mm. Due to different production processes, the length and distribution of carbon fibers retained in the resin are different. As a result, the fibers inside the long-fiber composite are longer and more regular than those inside the short-fiber composite.

Long-fiber reinforced composites show excellent mechanical properties compared to short fibers and are more suitable for applications requiring high strength.  The impact performance of long fiber composites is 1-3 times higher than that of short fibers, tensile strength is more than 50% higher, and mechanical properties are 50-80% higher.

Compared with traditional short fiber materials, the main features of LFT-G thermoplastic long glass fiber and long carbon fiber are mechanical properties, high impact and tensile modulus, which are more suitable for some large products or structural load-bearing parts.  It can do Injection molding, extrusion of sheets, profile pipes, etc.

Q & A

What is the Maximum Operating Temperature of Thermoplastic?
The maximum operating temperature of a thermoplastic usually refers to the temperature at which the mechanical properties of the plastic begin to degrade. Every thermoplastic has its own maximum continuous operating temperature. This property can be further impacted by additives meant to improve thermal stability. Xiamen LFT can provide you with data sheets tested by our own laboratory.

Does long glass fiber and long carbon fiber injection have special requirements for injection molding machines and molds?
There are certainly requirements. especially from the product design structure, as well as the injection molding machine screw nozzle and mold structure injection molding process must consider the requirements of long fiber.

Are long fiber reinforced composites suitable for other processes besides injection molding?
In addition to injection molding, LFT long glass fiber and long carbon fiber can also be used for extrusion of sheets, profiles, pipes and molding, among which injection molding is the most common.

About Xiamen LFT

Xiamen LFT Composite Plastic Co.,LTD was established in 2009, is a brand-name global suppliers of long fiber reinforced thermoplastic materials integrating product research & developmen （R&D）, production and sale marketing. Our LFT products have passed the ISO9001&16949 system certification and have obtained lots of national trademarks and patents, covering the fields of automotive, military parts and firearms, aerospace, new energy, medical equipment, power wind energy, sports equipment, etc.

Xiamen LFT has capabilities to provide assistance to you throughout an entire product launch - through product discussion, performance analysis, composite selection, composite pellet production, after-sales tracking. In addition, we provide guidance on injection molding techniques.

Contact us for more technical assistance.