Hydrocarbon flame resistant intumescent coating and preparation method thereof

Abstract

The invention relates to a fireproof coating and its preparation method. The provided hydrocarbon flame resistant intumescent coating has good adhesion to steel base materials and concrete substrates, fire prevention and thermal resistance capacity up to 3 hours, a low density as well as excellent flexibility, and can tolerate harsh climatic conditions. The intumescent coating consists of component A and component B that are in a weight ratio of 2.5-3.5:1. The component A comprises the following components (by weight part): 20-40 of epoxy resin, 5-25 of modified resin, 5-20 of a foaming sweller, 5-25 of a catalyst, 10-30 of a flame retardant, 5-10 of an assistant, 10-30 of a pigment filler, and 5-15 of a carbonization reinforcing agent. The component B comprises the following components (by weight part): 20-60 of a curing agent, 5-10 of an assistant, and 20-50 of a pigment filler.

Description

technical field [0001] The invention relates to a fireproof coating and a preparation method thereof, in particular to a hydrocarbon flame expansion resistant coating and a preparation method thereof. Background technique [0002] At present, domestic and foreign building structures mostly rely on concrete and steel structures, including high-rise buildings, tunnels and factories. Although their integrity and stability are good, their fire resistance is poor. For example, the steel structure itself is not combustible, but it is very easy to conduct heat. The fire resistance of steel structures is far worse than masonry and reinforced concrete structures. The strength of steel is related to temperature. When the temperature of steel rises to 540°C, its yield stress is only 40% of the normal temperature yield stress, and the bearing capacity drops sharply. The fire temperature is mostly between 800 and 1200°C. Within 15 minutes of the fire, the temperature of the fire site ...

AI Technical Summary

Problems solved by technology

When a fire occurs in a tunnel, the temperature is generally above 1000°C. The masonry of the tunnel cannot withstand such a high temperature, and the serious part is easy to burn down. In addition, the tunnel environment is relatively airtight and the density of people is high. Once a fire occurs, evacuation and fighting are very difficult and easy. Causing heavy casualties and property damage

At the same time, with the development of the economy, a large number of factories have been newly built or expanded, and the structure, production equipment and personnel density of the factories have also increased.

If a fire occurs, it may cause huge economic losses and even cause huge casualties