Polyurethane honeycomb paperboard glass felt composite material and preparation method thereof

Abstract

The invention discloses a polyurethane honeycomb paperboard glass felt composite material, and raw materials of polyurethane comprise a component A and a component B. The component A comprises the following raw materials in parts by weight: 60-70 parts of polyether with the number-average molecular weight of 450-550 by taking cane sugar and glycerol as initiators; 15-25 parts of polyether with thenumber-average molecular weight of 5000-6000 by taking glycerin as an initiator; 0.5 to 1.5 parts of a surfactant; 0.5 to 1.5 parts of a catalyst; 8-15 parts of an auxiliary agent and 0.5 to 1.5 parts of water; wherein the auxiliary agent comprises a cross-linking agent and a chain extender in a mass ratio of 1: (0.6-0.7); the cross-linking agent is one or more of glycerol, diethanol amine, triethanolamine and ethylenediamine polyether; and the chain extender is one or more of ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol and 1, 4-butanediol. The curing and skinning of the surface of the polyurethane honeycomb paperboard glass felt composite material are promoted, so that the surface of the polyurethane honeycomb paperboard glass felt composite material is smooth and glossy, and the appearance of the product is improved.

Description

technical field [0001] The invention belongs to the field of chemical materials, and in particular relates to a polyurethane honeycomb cardboard glass mat composite material and a preparation method thereof. Background technique [0002] Polyurethane foam has the characteristics of good heat insulation effect, high specific strength, electrical properties, chemical resistance and sound insulation effect, and is widely used as heat insulation materials, structural materials and sound insulation materials. Today, polyurethane foam has penetrated into many departments such as construction, petrochemical, refrigeration, shipbuilding, vehicles, aviation, machinery, and instruments. Polyurethane foam is a polymer made of isocyanate and polyether as the main raw materials, mixed and foamed by special equipment under the action of various additives such as foaming agent, catalyst, and flame retardant. As the automotive industry has increasingly stringent requirements for lightweigh...

AI Technical Summary

Problems solved by technology

The problems of the products currently on the market are mostly poor gloss and poor surface condition of the parts, which are not suitable for the production of non-covered polyurethane honeycomb paperboard glass fiber composite parts used in high-end cars.

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