Bumper lower bar environment-friendly flame-retardant polyurethane foam material and preparation method

Abstract

The invention discloses a bumper lower bar environment-friendly flame-retardant polyurethane foam material and a preparation method. The bumper lower bar environment-friendly flame-retardant polyurethane foam material is composed of acetonitrile polyester and a composite material in a mass ratio of 1:1.7, and the composite material is composed of the following components by mass: 25-28 parts of polyester 403, 35-45 parts of polyester 3360, 250-350 parts of glass fiber, 12-18 parts of polyether 4110, 2.5-3 parts of silicone oil, 1.3-1.8 parts of a catalyst HP-2, 1.5-1.9 parts of a catalyst A33, 3.6-3.9 parts of water, and 36-38 parts of a flame retardant TCEP, wherein the silicone oil is silicone oil AK-158. The preparation method includes: adding the components of the composite material into a reaction kettle and carrying out mixing reaction under a stirring speed of 130-150r / min for 4-5h to obtain the composite material, then mixing acetonitrile polyester and the composite material in a mass ratio of 1:1.7 evenly, thus obtaining the bumper lower bar environment-friendly flame-retardant polyurethane foam material. With the materials and the method provided by the invention, the prepared bumper lower bar environment-friendly flame-retardant polyurethane foam material has the advantages of flame retardance and high temperature resistance, high flame-retardant properties, high strength, long service life and environmental protection.

Description

technical field [0001] The invention relates to an environment-friendly flame-retardant polyurethane foam material for a bumper lower bar and a preparation method thereof, belonging to the field of automobiles. Background technique [0002] At present, with the development of the automobile industry and the enhancement of people's awareness of safety and environmental protection, people's requirements for auto parts have also increased significantly. As a part of safety precautions, people have stricter requirements for bumpers. High temperature resistance, high flame retardancy, high strength, light weight, long service life, and high environmental protection characteristics. The strength of traditional bumpers usually cannot achieve ideal results. In the event of an accident, it is difficult to provide ideal protection for the body and people. Also, due to poor flame retardancy, the escape time of personnel is short, and there is a great potential safety hazard. . Theref...

AI Technical Summary

Problems solved by technology

The strength of traditional bumpers usually cannot achieve ideal results. In the event of an accident, it is difficult to provide ideal protection for the body and people. Also, due to poor flame retardancy, the escape time of personnel is short, and there is a great potential safety hazard.