Introduction to the use of epoxy resin What are the precautions when using it?

As a high-performance, high-value-added adhesive, epoxy resin adhesive is highly valued by the industry, but at the same time, counterfeit and shoddy products are often patronized. Therefore, we can identify it by the following chemical methods. Method 1:

The sample is dissolved in sulfuric acid, and then concentrated nitric acid is added, and a large amount of sodium hydroxide solution is poured into it. The second type: drop 5 drops of concentrated nitric acid on the resin adhesive film, move the reactant into the test tube after a few minutes, add 6ml of acetone and then add potassium hydroxide ethanol solution to make it alkaline, if it turns from red to purple, it indicates that it contains epoxy resin glue containing bisphenol A type, this method is also intuitive; Method 3:

Take the adhesive film or glue solution, p-phenylenediamine and 8ml of sample water, boil for 8min, if it is epoxy resin, the solution is peach....

For epoxy resin, I believe many people are relatively unfamiliar, I am also one of them, what kind of substance is it? First of all, let's understand what epoxy resin is? Let's take a look at the explanation of professionals first, epoxy resin is an organic compound that contains two or more epoxy groups in the molecule.

From this, epoxy resin is a chemical substance that contains epoxy groups. The substances made of it include epoxy resin glue, epoxy resin curing agent, etc. Today, let's take a look at the use of epoxy resin and what precautions are in place when using it.

How to use epoxy resin - basic characteristics

1. Basic characteristics: two-component glue.

It needs to be mixed with AB components, which is versatile and can fill large voids.

2. Operating environment: curing at room temperature, indoor and outdoor, manual mixing or glue gun can be used.

3. Applicable temperature: -50 to 150 °C.

4. It is suitable for general environment, waterproof, oil-resistant, strong acid and alkali resistance.

5. Place it in a place that avoids direct sunlight or cold weather, and the shelf life is 12 months.

How to use epoxy resin - How to use

1. Use a dry cotton cloth or sandpaper to remove the dust, oil, rust, etc. on the joint, and then use acetone or trichloroethylene and other cleaning agents.

Wipe to clean the surface.

2. Stir well in proportion and then use; In order to ensure the effect of use, vacuum mixing is also possible.

3. Use it up within the operable time range, otherwise it will solidify and cause waste of materials.

4. After gluing, curing at room temperature for 2-6 hours; 40 hours, 1-3 hours curing; After 10 days of sizing, the adhesive is better, and in cold and humid days, it needs to be heated to 15-25 rooms for indoor use.

5. When bonding straight and upside-down surfaces, tape is required after gluing.

Stick, or use 502 to position.

How to use epoxy resin - precautions for use

1. It is best to wear knitted gloves.

or rubber gloves.

Use glue to avoid ** allergies.

2. **When in contact, you can wash it with soap, generally it will not hurt your hands, if your eyes are accidentally touched, rinse with a large amount of water immediately, and if you are serious, please seek medical attention in an emergency.

3. The workplace should be ventilated and prevent fireworks when it is used in large quantities.

4. When there is a large amount of leakage, open the window for ventilation first, pay attention to the fireworks, and then fill it with sand to remove it.

Epoxy resin is also a relatively common substance in our real life, especially in decoration.

In the industry, it can often be seen, but we are the door.

Laymen don't know what epoxy resin is. Through the above brief introduction, I believe that everyone has a clear understanding of the use of epoxy resin and related precautions. Epoxy resin is generally used at the same time as additives, and curing agent is an essential additive, otherwise epoxy resin cannot be cured.

So we have to pay attention in use.

Epoxy resin is a material that can be bonded quickly, and the range of applications is very wide, if you want to use epoxy resin, you need to master the correct use method, otherwise it will affect the bonding effect, so how to use epoxy resin? Let's learn with me.

How to use epoxy resin

1. When using epoxy resin, it is generally necessary to use it together with epoxy resin curing agent. Before use, the epoxy resin and the epoxy resin curing agent should be mixed according to the ratio of 1:1, and the two should be fully stirred before they can be applied to the position where they need to be bonded.

2. If the epoxy resin is bonded on the straight or upside-down surface, then after the mixed solution of epoxy resin is applied, it is necessary to use tape or 502 to fix the adhesive to avoid the displacement of the adhesive, which will affect the bonding effect of the epoxy resin.

3. In order to ensure the bonding effect of epoxy resin, it is better to use it at a temperature between minus 50 degrees and 150 degrees. If it is at room temperature, it will generally take about 6 hours after the epoxy resin is applied. If the temperature is 40 degrees Celsius, it will cure in about 3 hours.

4. If it is to be cured thoroughly, then it will take about ten days, and the bonding effect at this time is the best. If it is rainy and humid weather, it is generally necessary to heat the indoor temperature to about 20 degrees Celsius before using epoxy resin.

5. Before using epoxy resin, you need to wipe the surface of the items that need to be glued, and then use a rag dipped in some dish soap to wipe it, so as to achieve the purpose of full cleaning. Because the epoxy resin cures relatively quickly, the prepared epoxy resin mixture needs to be used in time, otherwise it cannot be used after curing, which will cause a waste of materials.

6. In order to avoid staining the epoxy resin handle, it is recommended that you wear gloves when using epoxy resin. If you accidentally come into contact with epoxy resin, then just use soap to clean it. If your eyes come into contact with epoxy resin, you need to rinse your eyes with clean water in time, and if it is very serious, you need to go to the hospital for treatment.

7. If epoxy resin is to be used on a large scale, it is necessary to ensure that the construction environment has a good ventilation effect and prevent fireworks in the construction environment. If there is a large amount of epoxy resin leaking, then you should open the doors and windows for ventilation, and pay attention to the fireworks, then use sand to fill the epoxy resin area, and finally remove the epoxy resin and sand together.

The above is all about the use of epoxy resin, friends who need to use epoxy resin can learn more about it, I hope it can help you. The use of epoxy resin is actually very simple, generally as long as it is modulated and used according to the instructions for use.

How to use epoxy resin:

1. When using epoxy resin, it usually needs to be used with epoxy resin curing agent. Before use, the epoxy resin and the epoxy resin curing agent should be mixed in a ratio of 1:1, and fully stirred before being applied to the parts that need to be bonded.

2. If the epoxy resin is bonded to a straight or inverted surface, after coating the mixed solution of epoxy resin, the adhesive needs to be fixed with tape or 502 to avoid the displacement of the adhesive, which will affect the bonding effect of the epoxy resin.

3. In order to ensure the bonding effect of epoxy resin, the temperature needs to be controlled at -50 to 150, if it is at room temperature, the epoxy resin is basically cured about 6 hours after coating. If the temperature is 40 degrees Celsius, it will cure in about 3 hours.

4. If you want to be thorough, it will take about ten days, and the bonding effect is better at this time. In rainy and humid weather, Miwa usually needs to heat the room temperature to about 20 degrees Celsius before using epoxy resin.

5. Before using epoxy resin, you need to wipe the surface of the object to be bonded, and then wipe it with a rag dipped in detergent to achieve the purpose of multi-faceted cleaning. Due to the fast curing speed of epoxy resin, the prepared epoxy resin mixture needs to be used in time, otherwise it cannot be used after curing, and the preparation will cause waste of materials.

Introduction to epoxy resins

According to its main components, it can be divided into pure epoxy resin adhesive and modified epoxy resin adhesive, according to the construction conditions, it can be divided into room temperature curing glue, low temperature solid roller chemical adhesive and other curing adhesives, and according to its packaging form, it can be divided into one-component glue, two-component glue and multi-component glue.

Many guys may have heard of epoxy resin when they were decorating, but they are not too clear about what epoxy resin is and how to use epoxy resin.

How to use epoxy resinBefore use, the epoxy resin and the epoxy resin curing agent should be mixed and modulated according to the ratio of 1:1, and the two cavities should be fully stirred before they can be applied to the position that needs to be bonded, and the most suitable temperature for the use of epoxy resin is between minus 50 degrees and 150 degrees. In addition, before using epoxy resin, you need to wipe the surface of the item that needs to be bonded, and if you want to use epoxy resin on a large scale, then you must ensure that the construction environment has a good ventilation effect.

Introduction to epoxy resinsEpoxy resin refers to a general term for a class of polymers containing more than two epoxy groups in the molecule, which is a polymer polymer and a polycondensation product of epichlorohydrin and bisphenol A or polyol. There are many types of epoxy resins, and the more common classifications include pure epoxy resin adhesives and modified epoxy resin adhesives according to their main components; According to its professional use, it is divided into mechanical epoxy resin adhesives, construction epoxy resin adhesives, electronic epoxy resin adhesives, epoxy resin adhesives for repair, transportation adhesives, marine adhesives, etc.; According to its construction conditions, it can be divided into room temperature curing glue, low temperature curing glue and other curing glue; According to its packaging form, it can be divided into one-component glue, two-component glue and multi-component glue.

1. This kind of glue usually needs to be used with epoxy resin curing agent, before implementation, the two are configured according to the ratio of 1 to 1, and then fully mixed, and then coated in the place that needs to be pasted.

2. If you want to use it to glue straight or upside-down surfaces, fix the paste with tape or 502 glue after smearing, which can avoid the problem of displacement and reduce the impact on the adhesive effect of resin glue.

3. In order to ensure that the paste effect of epoxy resin glue is normal, it is necessary to ensure that the temperature is between minus 50 degrees and 150 degrees, if it is room temperature, the epoxy resin glue will be cured after 6 hours, if the temperature is 40, then it can be cured in three hours.

4. If you want to dry thoroughly, it will take about 10 days, so as to ensure the best pasting effect, if it is rainy and humid weather, you need to keep the indoor temperature at about 20 degrees before you can use epoxy resin glue construction.

5. Before using glue, the outer base surface of the items that need to be bonded needs to be cleaned, and it can be cleaned with dish soap, and because the curing speed of epoxy resin glue is very fast, the configured resin glue solution must be used up in time, otherwise it cannot be used after curing, which leads to unnecessary waste.

6. In order to avoid glue staining hands, it is best to equip it with protective measures when using, such as gloves, etc., if you accidentally touch it, you can wash it with soap, if it gets into the eyes, you should immediately rinse it with water, and if it is serious, you should go to the hospital for medical treatment.

7. If you need to use this kind of glue in a large area, you must ensure that the ventilation of the construction environment is good, and avoid flames around.