LFT-G® LGF50 PP LFT Polypropylene Composite

The PP LGF50 material has become increasingly popular in the industry, especially for parts that require high durability and strength. LFT-G® PP LGF50 stands for Polypropylene Long Glass Fiber 50%. This means that the material is made up of 50% long glass fiber and 50% polypropylene. The long glass fibers are what give the material its strength and durability, while the polypropylene provides flexibility and resistance to heat and chemicals.

Why long Fiber LFT PP have higher performance that PP GF?

During the cavity filling process, the molten PP is more fluid than the glass fibers, the temperature of the end far from the gate and the end of the mold is lower, the PP cools rapidly, but the glass fibers are coalesced by the constantly renewed melt and the content is increased. In addition, the glass fiber far from the gate undergoes more folding due to the growth of the process and the retention length decreases, and the glass fiber length is significantly impaired at the end near the gate due to the long holding time. The middle part has the longest glass fiber holding length, and this part of the glass fiber is highly oriented and has the strongest tensile strength under the action of the high speed flow of the melt. The longer, isotropic glass fibers are able to form a certain fiber skeleton in the PP polypropylene matrix to absorb the shear stresses from the outside, thus improving the mechanical properties of the LFT PP LGF material stress.

In addition, due to the development of polypropylene long fiber LFT modification technology in recent years, polypropylene has an absolute advantage in the development of the automotive industry.

Xiamen LFT-G® Ltd adopts LFT-Granules cutting process to prepare high melt flow rate PP injection molding pump special material, the product flexural modulus of 1600MPa or more, to meet the customer's design specifications and processing requirements, and has been produced on a large scale.