Semi-dry flame-retardant anti-corrosion adhesive tape and preparation method thereof

Abstract

The invention discloses a semi-dry flame-retardant anti-corrosion adhesive tape and a preparation method thereof, and belongs to the technical field of surface engineering. A flame-retardant system combination is optimized by matching silicon resin, fumed silica, pyrophyllite powder and brucite powder with a flame-retardant non-woven fabric, mutual coordination is realized, the semi-dry flame-retardant anti-corrosion adhesive tape can rapidly expand and foam to form foams when a fire disaster occurs, and the speed of transferring heat to a protected base material can be delayed. The temperature of a combustion system can be reduced in the expanding, foaming and foam layer generating process of the anti-corrosion adhesive tape, and ideal flame-retardant effects are achieved. A semi-dry product with long lasting corrosion protection functions is formed by the aid of base oil and metal corrosion inhibitors, an anti-corrosion layer is compact and good in isolation, coordinating protectionfunctions are prominent, the product is good in permeability and strong in rust inhibition capacity by addition of the metal corrosion inhibitors, so that permanent corrosion protection of a metal structure can be achieved in various harsh environments, and the product has excellent flame-retardant functions.

Description

technical field [0001] The invention relates to the technical field of surface engineering, in particular to a semi-dry flame-retardant and anti-corrosion adhesive tape and a preparation method thereof. Background technique [0002] Corrosion exists not only in various industrial sectors such as petroleum exploitation, petrochemical and chemical industry, but also in many parts of important facilities such as bridges, buildings, offshore equipment and ports. Ubiquitous corrosion often leads to resource waste, production stoppage, material loss, and even catastrophic accidents such as fire and explosion, which bring great safety hazards to safe production; in addition, high temperature and high humidity climate conditions and coastal high salt spray environment Corrosion to various important facilities will seriously affect the normal use of in-service facilities, threatening the safety of facilities and public safety at all times. Therefore, it is necessary to do a good job...

AI Technical Summary

Problems solved by technology

However, the metal structure is a combination of multiple parts connected by welding, bolts, etc., and these connection parts are usually not pretreated and have complex structures, and the surface treatment cannot reach the required level. A certain amount of friction is required, so the connection gap can hardly be treated, and the corrosive medium is difficult to discharge after entering the gap, and the surface of the welding part is more prone to electrochemical corrosion due to the uneven material, and the existence of welding stress and welding deformation leads to surface coating The corrosion of bolts or welded joints is serious, and brittle fractures easily occur in this part, which seriously threatens the life and safety of metal structures; Tanks, etc., the anti-corrosion coating is usually fatigued and desorbed gradually due to long-term stress changes, and loses the protection function of the facilities; facilities in the ocean splash zone, such as offshore platforms, offshore steel pipe piles, etc. Anti-corrosion measures, including coating anti-corrosion schemes, often lose their protective effect within a long period of time, and anti-corrosion construction has to be carried out in a relatively short period of time, and the construction work is difficult and the waste of manpower and material resources is serious; finally, fire is a threat to facilities. It is a great hidden danger to the safety of workers and workers, and one of the measures to prevent fire is to use flame-retardant materials or even flame-retardant materials. At present, materials with anti-corrosion functions, including coating materials, rarely have flame-retardant functions.

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