Formula of polyurethane foaming product with good oil-repellent effect

Abstract

The invention discloses a formula of a polyurethane foaming product with a good oil repellent effect. The polyurethane foaming product with a good oil repellent effect is prepared from the following components in parts by weight: 60-80 parts of polyether polyol, 40-60 parts of isocyanate, 10-20 parts of deionized water, 3-7 parts of silicone oil, 0.8-2 parts of n-pentane, 0.7-1.5 parts of ethyleneglycol, 3-7 parts of polyether modified polysiloxane and 1-3 parts of paraffin. Polyether polyol, isocyanate, deionized water, n-pentane and ethylene glycol are used as main raw materials of the polyurethane foaming product; polydimethylsiloxane, polymethyl hydrosiloxane, ethanolamine, zirconium oxychloride and zinc acetate are added as auxiliary agents; the prepared polyurethane foaming producthas high oil repellency, and the problems that when a traditional polyurethane foaming product is applied to an automobile engine cover, due to poor oil repellency, the automobile engine cover is prone to being stained with greasy dirt and the greasy dirt is difficult to erase and clean are solved.

Description

Technical field [0001] The present invention relates to the field of polyurethane foaming techniques, and more particularly to a polyurethane foamed product formulation of a good oil. Background technique [0002] The polyurethane hard foam is a main material with isocyanate and a polyether, under the action of a plurality of auxiliaries such as blowing agents, catalysts, flame retardants, mixed by special equipment, high-molecule polymerization in the high-pressure spraying site . Polyurethane has two types of soft bubbles and hard bubbles. The soft bubble is open-well structure, the hard bubble is a closed hole structure; the soft bubble is divided into two kinds in the skin. The main function of the polyurethane soft bubble is buffering. Polyurethane soft bubbles are commonly used in sofa furniture, pillows, cushions, toys, clothing and soundproof liners, hard polyurethane foam plastic main applications in building wall insulation, waterproof heat preservation integrated, cold...

AI Technical Summary

Problems solved by technology

Polyurethane soft foam is often used in sofa furniture, pillows, cushions, toys, clothing and sound insulation lining, rigid polyurethane foam is mainly used in building exterior wall insulation, roof waterproof insulation integration, cold storage insulation, pipeline insulation materials, construction Plates, refrigerated vehicles and cold storage insulation materials, etc., in the automotive field, polyurethane foam products are often used in the car engine cover to play the role of sound insulation protection, but due to the poor oil repellency of traditional polyurethane foam products, and around the car engine There are often a lot of oil stains, and once the oil stains are stained, it is difficult to wipe off and clean up. Therefore, a polyurethane foam product formula with good oil repellency effect is proposed