How to control the addition ratio of crosslinking agent?

What is the appropriate ratio of cross-linking agent to use?

Because the applicability of this material itself is very strong, it can be used in many different materials, so the problem of proportion is not necessarily fixed . For example, when it is added to some systems, it can be added at a ratio of 1% to 3%, but in other systems it may be added more, for example, the highest ratio may reach 10%. So it depends on the specific system.

Let’s introduce what proportion should be used when using this product?

There are many factors that can affect the ratio during the use of the crosslinking agent. Since there are more materials that can be used, if you are not sure about the ratio, you can Let’s test it first, first test according to the ratio of 1%, and then calculate the curing time. If the ratio of 1% cannot achieve a good curing effect, you can increase the ratio to 2% and continue to measure For the curing time, if the ratio of 2% is just right, then you can use it directly according to this ratio.

The second thing to pay attention to is whether this material can use this curing agent. Although this curing agent itself has strong practicability, not all materials are suitable, so you can conduct a simple test before deciding to use it. After the test, you feel that this curing agent is indeed usable, and After using it, the performance parameters of all aspects can reach the standard, then this curing agent can be used directly.

In the process of testing, pay attention to the added ratio, and just determine the most suitable ratio. There are many factors that can affect the curing time, among which temperature and humidity factors can easily affect the curing time. For example, when this product is used in resin, the curing speed will be faster when the weather is hotter. Faster, and when the weather is colder, the curing speed will be slower, so in this case, the proportion of addition should be appropriately lower when it is hot, and the proportion of addition when it is cold It should be appropriately higher. To be more specific, when the temperature and humidity are high, the proportion of crosslinking agent can be added up to 4%, and vice versa, the proportion of crosslinking agent can be added up to 6%.

The proportion of cross-linking agent used is simply analyzed here. When this product is added to the material, it is not necessary to use one A fixed ratio, the added ratio is a range of different materials and different weather conditions, or under the action of some other influencing factors, it will eventually lead to a difference in the added ratio.

Summary

For different adhesives, you should choose the appropriate cross-linking agent. There are some requirements for the cross-linking agent as follows:

⑴The active group of the crosslinking agent can react with the components in the adhesive to form a crosslinking structure.

⑵The cross-linking efficiency is high, and a stable cross-linking structure can be obtained only by adding a small amount.

⑶ The crosslinking speed is appropriate, too fast or too slow is not good.

⑷ Several cross-linking agents are used in combination to obtain the best comprehensive effect.

⑸The cross-linking agent is stable during processing and storage, and no harmful reaction and aggregation will occur. Non-toxic, non-irritating, and does not pollute the environment.

Cross-linking agent (English name: cross-linking agent) is a kind of cross-linking agent that can act as a bridge between linear molecules, so that multiple linear molecules can bond to each other A substance that is cross-linked into a network structure. Crosslinking agents have different names in different industries, for example: in the rubber industry, they are called “curing agents”; in the plastic industry, they are called “curing agents”, “curing agents”, and “hardeners”; in adhesives or The paint industry is called “curing agent”, “hardener” and so on. Although the above titles are different, the chemical properties and mechanisms reflected are the same.