Eco-friendly lightweight base material for automotive interior with improved resistance to humidity

摘要

The present invention relates to an environmentally friendly lightweight substrate for an automobile interior material, and in order to supplement the performance of a substrate for a car interior material having a sandwich structure containing natural fibers susceptible to high temperature and high humidity environment, a moisture curing type isocyanate or epoxy is added, It is possible to improve the moisture resistance and strength of the natural fiber reinforcing layer by complementing the lowering of physical properties due to penetration and to continuously produce the base material by using thermal lamination on the thermoplastic foam sheet core layer. The base material produced by the present invention is an eco-friendly material and can be reduced in weight by weight reduction, and is excellent in moisture resistance and strength, and can be applied not only to automobile interior materials but also to various industrial fields such as railroad, aircraft, and architectural interior materials.