Anticorrosive Gel Coat FRP GRP Sheet

With the continuous development and increasing frequency of use of various industrial machinery and equipment, especially in the fields of ocean, shipbuilding, petrochemical, etc., the application of fiberglass materials is gradually expanding. However, due to its inherent structure and properties, corrosion problems can occur on its surface, which can affect the service life and safety of the material. In order to solve this problem, anti-corrosion gel coating technology has been proposed. This article will introduce the relevant knowledge of anti-corrosion gel coated FRP in detail.
1、 Basic knowledge of fiberglass
Definition of fiberglass
Fiberglass reinforced plastic, also known as reinforced plastic, is a new type of material made by compounding glass fiber as the reinforcing material and epoxy resin, polyester resin, and other matrix materials.
Advantages of fiberglass
(1) Good mechanical properties: wear-resistant, impact resistant, high stiffness, and high strength, ensuring stability even in extreme working environments;
(2) Lightweight: lighter than steel materials, easy to transport, install, and maintain;
(3) Good anti-corrosion performance: It has good corrosion resistance, acid and alkali resistance, and does not rust, and performs stably in complex chemical environments;
(4) Long service life: able to work in harsh environments for a long time without affecting the material's service life.
2、 Glass fiber reinforced plastic anti-corrosion gel coating technology
Definition of anti-corrosion gel coating technology
Anticorrosive gel coating technology refers to the technology that a polymer gel is coated on the surface of glass fiber reinforced plastic and forms a layer of anti-corrosion protective layer after hardening reaction. This technology can effectively protect the surface of fiberglass, increase its service life, and improve the mechanical properties and corrosion resistance of fiberglass.
Preparation method of anti-corrosion gel coating
(1) Preparation of gel coating materials: select appropriate polymer gel, add various plasticizers, solvents, additives, etc. on the basis of which to prepare gel coating materials suitable for FRP.
(2) Surface treatment: carry out surface treatment such as decontamination, rust removal and burr removal on the glass fiber reinforced plastic to ensure that the surface is clean and flat, so as to facilitate the adhesion and strength of the gel coating.
(3) Coating construction: gel shall be coated on the surface of glass fiber reinforced plastic by spraying, roller coating, brush coating and other methods, and it shall be evenly distributed to form a coating with moderate thickness and strong adhesion.
(4) Curing reaction: after a certain period of time, the gel coating will self solidify, producing a dense anti-corrosion protective layer, improving the corrosion resistance and service life of FRP.
Advantages of anti-corrosion gel coating technology
(1) Good protection effect: anti-corrosion gel coating can effectively protect the surface of FRP to prevent corrosion and oxidation, thus increasing the service life and safety of materials;
(2) Simple construction: anti-corrosion gel coating technology has the characteristics of simple, fast and convenient construction, which can greatly shorten the construction period and reduce costs;
(3) Environmental protection and energy saving: the anti-corrosion gel coating material is non-toxic and harmless, and will not produce pollution. At the same time, the curing process of the coating does not require the use of high temperature and other conditions, saving energy.
Application fields of anti-corrosion gel coating technology
Anti corrosion gel coating technology is widely used in the protection of various FRP products, such as storage tanks, pipelines, ships, chemical equipment, etc. Especially in the fields of offshore oil extraction, chemical engineering, electricity, and food, it is even more important.
3、 Summary
Anti corrosion gel coating technology is an advanced anti-corrosion technology of FRP, which can effectively protect the surface of FRP from corrosion and oxidation. At the same time, anti-corrosion gel coating technology has the advantages of simple construction, environmental protection and energy saving, and has been widely used in various fields.
In the future development, with the continuous progress of science and technology and the continuous improvement of production technology, the FRP anti-corrosion gel coating technology will be more perfect and mature, providing a more reliable guarantee for the application of FRP materials.