Multilayer composite FRP coating

Abstract

The invention provides a multilayer composite fiber-reinforced-plastic coating used for being adhered to a base body. The multilayer composite fiber-reinforced-plastic coating comprises an adhesion layer, a reinforcement layer and an anticorrosive layer. The reinforcement layer and the anticorrosive layer are adhered to the adhesion layer sequentially. The adhesion layer is a film layer formed by interface resin adhesive with high ductility and is used for being adhered to the outer surface of the base body to improve adhesive force to the base body. The reinforcement layer is formed by spraying of chopped fiberglass yarns, vinyl ester resin is sprayed continuously during spray forming, and the content of the vinyl ester resin is 30-60%. The anticorrosive layer is formed by spraying of fiberglass and vinyl ester resin, and the content of the vinyl ester resin is not lower than 80%. The fiber-reinforced-plastic coating has the advantages that due to the multilayer composite structure, good anticorrosion effect is achieved, strength and good adhesion performance of the coating are guaranteed, and the coating is easy to construct and operate and good in use effect.

Description

technical field [0001] The invention relates to the manufacturing technology of FRP coating, in particular to a multi-layer composite FRP coating, which belongs to the technical field of anti-corrosion material manufacturing. Background technique [0002] The chimney is a large structural part, and the performance of the lining anticorrosion layer must meet the long-term safe use, that is, the lining anticorrosion layer has high overall corrosion resistance, aging resistance and strength retention, and the primary technical condition to ensure this performance is to lay Layer process design, according to the experience of chimney project construction and the requirements of relevant standards, the chimney anti-corrosion layer is generally formed on the glass fiber reinforced plastic substrate with anti-corrosion materials. [0003] FRP coatings in the prior art generally have the following problems: 1. Affected by actual operating environments such as temperature, temperatur...

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Problems solved by technology

[0003] FRP coatings in the prior art generally have the following problems: 1. Affected by actual operating environments such as temperature, temperature change, humidity, wind vibration, abrasion, impact, thermal expansion, etc., it is prone to cracking, delamination, bubbling, falling off, etc. 2. The structural strength is highly dependent on the substrate; 3. The substrate is difficult to handle; 4. The bonding strength between the anticorrosion layer and the substrate is insufficient.

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