The addition of long glass fiber can significantly reduce the molding shrinkage of polypropylene, but the glass fiber tends to have uneven orientation in the matrix, and the shrinkage rate and the vertical shrinkage of the melt flow are greatly different, which eventually leads to warpage of the workpiece. It is deformed and cannot be assembled.
XIAMEN LFT COMPOSITE PLASTIC CO.,LTD. can improve the bond strength between the fiber and the matrix by improving the compatibility of the fiber with the matrix, and greatly improve the uniformity of the fiber orientation during the injection molding process. The degree of warpage of the material. Although a small amount of mineral filling, such as mica or glass beads, can improve fiber orientation and reduce the warpage of the material, it can result in some loss of mechanical properties.
Comparison of warpage between long glass fiber reinforced polypropylene and conventional long glass fiber reinforced polypropylene
