Method and a system for manufacturing a composite product and a composite product

摘要

The invention relates to a method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the method comprises mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture. The primary mixing stage comprises a contacting step in which the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, and bulk density of the organic natural fiber material is less than 500 kg/m3. The method further comprises forming a composite product comprising the mixture. Further, the invention relates to a composite product, a use of the composite product, and a system for manufacturing a composite product.

主权项

1. A method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the organic natural fiber material is chemical pulp having a lignin content under 1 wt. %, the method comprising:
crushing the organic natural fiber material to form bulky organic natural fiber material such that the fiber material is at least partly in the form of flakes after the crushing, mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture, the primary mixing stage comprising a contacting step in which
the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, andbulk density of the organic natural fiber material is less than 160 kg/m3, the method further comprising:
forming a composite product comprising the mixture.