Base material for vehicle headliner

Abstract

A base material for a vehicle headliner is disclosed, which includes a core sheet made of a crosslinked polyolefin foam sheet, and reinforcing layers disposed on upper and lower portion of the core sheet and made of natural fiber and synthetic fiber.

Description

[0001] Cross references to related applications [0002] The present invention is based on the Korean Patent Application No. 10-2007-71638 filed in the Korean Intellectual Property Office on July 18, 2007 and claims priority, the disclosure of which is incorporated herein by reference in its entirety. Technical field [0003] The present invention relates to a base material for a roof liner, and more specifically, to a base material for a roof liner that has a high degree of recyclability and excellent physical properties such as light weight and high strength. Background technique [0004] Generally, the base material of the roof liner includes resin felt, board reinforced with natural fibers, cardboard, wood fiber, rigid polyurethane foam, and the like. [0005] The resin felt and cardboard are manufactured by impregnation of phenolic resin. Phenolic resins used as curing agents are a type of thermosetting resin prepared by the condensation reaction of phenol and aldehyde. One d...

AI Technical Summary

Problems solved by technology

A disadvantage of phenolic resins is that unreacted or incomplete combustion of phenolic resins during incineration produces phenols and aldehydes that are considered toxic gases that are pollutants of living environments including workplaces

[0006] In the case where conventional roof liners contain glass fibers or glass shavings, glass dust generated during production and transportation has an adverse effect on workers, and adhesives containing volatile organic solvents used to bond materials are also health hazard

[0007] Although rigid polyurethane foam has good heat resistance and light weight, it has poor recyclability and tends to become brittle during the molding process to make the roof liner due to its poor impact strength

[0008] The conventional roof liner base material has the following disadvantages: its sound insulation effect is not very good; it is relatively expensive and heavy; it is easily deformed after long-term use; it is harmful to health; and the material is difficult to recycle

Images