What are the advantages and disadvantages of vinyl resin, epoxy, furan and water glass?

Oct. 30, 2019

The distinction between vinyl resin, epoxy resin, furan resin and water glass and their respective advantages and disadvantages are briefly mentioned as a lining of brick lining.

1, Vinyl resin VER is used as a resin for the cement and insulation layer when lining:

Advantages: The best corrosion resistance performance, can meet most media environment; vinyl resin with high adhesion; temperature and other aspects of performance are better; resin viscosity is small, it is more convenient to prepare cement and to do isolation layer.

Insufficient: The absolute temperature is not enough (not as good as furan cement and water glass cement). Generally, it is not recommended to use VER to make brick-lined cement and separator resin material. The absolute bonding performance is not as good as epoxy resin cement and isolation. Layer; curing ratio is sensitive to temperature, and people who have not used it will not get used to it. Adding too much is too late to construct, adding less curing is too slow or even curing.

2, Epoxy resin EPR as a resin for the cement and insulation layer when lining:

Advantages: The best bonding properties of several materials; the curing ratio is less sensitive to temperature.

Insufficient: Corrosion resistance is not as good as vinyl, especially resistant to organic solvents, strong acids, etc. It is far less than vinyl resin; the temperature resistance after curing at room temperature is up to 60 degrees, and the viscosity of the epoxy resin needs to be added more at the construction site. In reality, there is very little on-site construction using reactive diluents. Inactive diluents can be volatilized when used as epoxy coatings, but they cannot be volatilized in the lining and the thicker FRP insulation. The addition of non-reactive diluents will affect the compactness, temperature resistance, corrosion resistance, strength and bonding properties of the final cement.

Vinyl Resin

Vinyl Resin

3, Furan resin used as a lining cement:

Advantages: good acid resistance; temperature resistance is relatively high in several materials (not as good as water glass inorganic materials), and commercial grade clay is relatively cost-effective.

Insufficient: insufficient bonding performance; very good acid resistance, and a certain degree of alkali resistance; but too brittle, almost no toughness.

4, Water glass used as a cement when lining. Note that since water glass is an inorganic material, that is, a silicate-based material, there are inherent advantages and disadvantages of inorganic materials.

Advantages: good acid resistance; temperature resistance is the highest of several materials (after all, inorganic materials), the biggest advantage is cheap.

Insufficient: There is pickling in the construction process, other construction aspects are relatively simple and easy to control; corrosion resistance can only be said to be general (but indeed cheaper than organic materials); too brittle, inorganic materials can not require toughness. Of course, it is not excluded that some manufacturers who are very professional in water glass commercial grade clay can make some more improved products.

Other than this, vinyl resin for maintenance coating is the most difficult resin to cure in these resins. Because free radical curing requires heat, it is too thin, and heat is easily dissipated. Of course, by adjusting blue and white water to cure the formula and adopt some special surfaces. The coated vinyl variety can solve these problems. It should be specially noted that when a vinyl resin is used as a surface resin, it is usually necessary to add a liquid wax to improve the degree of curing of the top coating. If it is not added, it is easy to stick and the curing is too slow.