Coating is an indispensable material for decoration, what are the advantages and disadvantages of wa

Water-based epoxy resin refers to a stable dispersion system prepared by dispersing epoxy resin in the form of particles or droplets in a dispersion medium with water as a continuous phase. Since epoxy resin is a thermosetting resin with a linear structure, a water-based epoxy curing agent must be added before construction, and a chemical cross-linking reaction will occur at room temperature. After curing, epoxy resin will change the original soluble and fusible properties, and become an insoluble and non-soluble space network structure, showing excellent performance.

Coating is an indispensable material for decoration, what are the advantages and disadvantages of water-based epoxy floor coating?

Water-based epoxy resin advantages:

1.Environmental protection: water-based, soluble in water, with water as the medium. Low odor, non-flammable, easy to store, transport and use safely, in line with environmental protection requirements. This is especially true in the context of the increasingly stringent laws and regulations restricting the storage of flammable and explosive materials in major cities today.

2.Reduce coating defects: oil-based epoxy floor coatings are prone to deformation, hollowing, blistering and even peeling due to material ratio, construction, ground moisture and other reasons.

Water-based floor paint uses water as the solvent, and there are small pores on the cured paint film, and the water vapor in the base layer can escape through the pores, so as to relieve the pressure caused by the evaporation of water vapor on the surface of the base layer and effectively prevent the floor paint coating from blistering.

3.Easy to use: water-based epoxy floor paint construction tools can be directly washed with water, which can reduce construction costs.

Oil-based paints are difficult to clean, with some tools such as paint brushes. 4.Wide range of applications.

It can be used in room temperature and humid environments, such as basements, building ground floors, etc., and has good recoating performance.

4.Decorative: semi-glossy, matt and a variety of colors are available. The surface is flat and smooth.

Water-based epoxy resin disadvantages:

1.The dispersion stability of strong mechanical force is poor, and it is easy to aggregate and precipitate.

2.The surface tension of the water is large, and the coating film is easy to produce shrinkage holes, which has high requirements for the cleanliness of the construction ground and high technical requirements for the construction personnel.

3.The surface drying time is slow, and it is not suitable for low-temperature construction. Low temperatures can affect the performance of water-based coatings, especially in winter.

The advantage of this coating is that the adaptability is relatively good, the shrinkage after application is relatively small, and then the hardness is relatively high, the environmental protection effect is better, and the real water melting effect can be achieved. The disadvantage is that it is more expensive, and then the cleanliness requirements for the surface are relatively high, and it must be operated by professional staff.

The advantage of this coating is that the taste is relatively small, the formaldehyde content is relatively small, the process of painting is relatively simple, Xiaobai can get started, very delicate, the disadvantage is that it is more expensive, and it must be painted many times, so that the wall is polished, and it needs to be maintained in the later stage.

The advantage is that it is cheaper, the operation is simpler, and there is no smell, it is not easy to burn, the hardness is relatively high, and it is more wear-resistant, and the disadvantage is that the cleanliness requirements for the surface are relatively high, and the ground needs to be very smooth, and there will be problems when using it.

The advantages are strong adaptability, good environmental performance, good real water-based operation performance, wide range of application, strong decoration, and the disadvantages are that the cost is relatively high, the dispersion stability is relatively poor, and the surface tension is a little high.

It is more environmentally friendly, there is no taste, the viscosity is more suitable, the color is more bright, and the effect of painting is very good, but the disadvantage is that it is more expensive and the color variety is too small.

It has the following five advantages.

1. Excellent environmental performance.

Waterborne epoxy floor paints do not contain organic solvents or volatile organic compounds and do not cause air pollution, thus meeting the current requirements of environmental protection.

2. Truly water-based.

Water-based epoxy floor coating, just from the literal understanding, we know that it is a kind of water as a dispersion medium, odorless, non-combustible, storage, transportation and use of the safety is also greatly improved.

3. Strong applicability.

It has extremely high adhesion to many substrates, excellent corrosion resistance and chemical resistance of the cured coating film, and small shrinkage of the coating film, high hardness, good wear resistance, excellent electrical insulation performance, etc.

4. Good operation performance.

The construction operation performance of water-based epoxy resin coating is good, the construction tools can be directly cleaned with water, engraved in room temperature and humid environment for curing, there is a reasonable curing time, and the high cross-linking density is guaranteed. This is incomparable to the usual water-based acrylic floor paint and water-based polyurethane floor paint.

5. Good compatibility.

The compatibility between epoxy curing agent and epoxy resin is conducive to the stability of the system after dispersion of water-based epoxy resin emulsion, and the better the compatibility between the two, the easier it is for the epoxy curing agent to diffuse to the inside of the epoxy resin particles, which is conducive to the curing reaction.

Problems with water-based epoxy floor paint:

1. Generally speaking, the best of water-based epoxy floor paint is relatively chaotic, but brand paint still has a competitive advantage.

2. Generally, it can be used for 3-5 years, which is shorter than the 20-year service life of water-based polyurethane mortar floor.

3. Because it is not resistant to ultraviolet rays, it is generally used indoors, while water-based polyurethane floor paint can be used outdoors.

4. Due to the poor low temperature resistance, it cannot be used in cold storage and other low temperature environments.

5. It begins to soften under the high temperature steam of about 70, and it is not recommended to use it in a high temperature and high humidity environment.

6. It is suitable for a small range of ground environment, and the material is relatively brittle, so it is only suitable for concrete foundation, otherwise it is easy to have faults and cracks.

7. The curing time is long, and the temperature and humidity are strict. The construction temperature is 5 -30 .

8. The noise reduction effect is poor and the elasticity is low.

9. The workshop environment has poor tolerance and compressive load, which will reduce the use effect and service life.

10. The construction process is simple, and the preset expansion joints are of little significance, and they are limited by the material performance, especially the primer coating effect is not good.

The coating film has small shrinkage, high hardness, good wear resistance, and excellent electrical insulation performance.

Water-based epoxy floor paintIt is an epoxy resin flooring material that is environmentally friendly and wear-resistant. It has a very high adhesion to the substrate, and the cured coating film has excellent corrosion and chemical resistance, as well as excellent shrinkage, hardness, abrasion resistance and electrical insulation. Water is used as a dispersion medium to save energy and meet the requirements of a pollution-free environment.

So let's introduce the characteristics of water-based epoxy resin floor paint.

1. Characteristics of water-based epoxy resin floor paint.

1.First of all, epoxy resin is a thermoplastic linear structure and is a very good material. When heated, the solid becomes liquid, and its high viscosity decreases.

It is only useful when used in combination with a hardener (a pure one-component water-based epoxy system requires the addition of a potential hardener). Therefore, the aqueous epoxy system must contain a waterborne epoxy resin and a waterborne epoxy curing agent, and three different water dispersion paths can form three forms of water dispersion.

2.Secondly, the aqueous epoxy system has more options (there are theoretically nine combinations), which is also known to us, but also increases the difficulty of selection. At the same time, in the actual application process, by adding a large number of pigments, fillers, additives, etc., the application performance of the waterborne epoxy system is improved at the same time, and the shortcomings or serious defects, uncertainty and complexity of the waterborne epoxy system are also covered.

3.Again, to avoid complexity and simplicity, pay attention to the form of water-based epoxy resins and water-based epoxy curing agents. By controlling the performance of waterborne epoxy resins and evaluating waterborne epoxy resins, you can build a strong foundation for tall buildings so that you can choose a faster and better waterborne epoxy system.

Second, the type of floor paint.

1.More common water-based epoxy resin system: low molecular weight liquid epoxy resin (epoxy equivalent of about 190) and water-based epoxy curing agent, the excellent material oxy resin composed of the system ring is generally not pre-emulsified, and is mixed with water oxygen curing agent before emulsification, which can be well dispersed or dissolved in water, and has excellent emulsification effect on low molecular weight liquid epoxy resin.

The hardness increases dramatically.

2.Good structure type waterborne epoxy resin system: it is composed of high molecular weight solid epoxy resin emulsion and waterborne epoxy curing agent, and due to the low reactivity of polymer weight epoxy resin, the molecular weight epoxy resin is small, the application cycle of type II waterborne epoxy resin system is shorter than it is longer than type I, and the surface drying time is shorter than that of type I.

3.Good effect type waterborne epoxy resin system: a new type of anti-cavitator epoxy resin emulsifier composed of low molecular weight liquid epoxy resin emulsion and water-based epoxy curing agent, including surface-active segments (hydrophilic segments) and epoxy resin segments.

Lipophilic segments) greatly improve the compatibility of emulsifiers and epoxy resins, while providing a constant reinforcement effect on the coating film. Closed minds.

The characteristics of water-based epoxy resin floor paint and the types of floor paint are introduced in detail in this article. It is recommended that when you choose floor paint, you should choose some materials with better materials, no harmful gases, and low formaldehyde and benzene content. If.