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Plasma processor manufacturers for you to introduce the factors affecting the bond strength of adhesives

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12 Mar,2021

Plasma processor manufacturers for you to introduce the factors affecting the bond strength of adhesives:
As we all know, if you want a more simple and quick way to obtain bonding strength, you can use plasma processor to treat the surface of the material to increase the bonding ability. What are the influencing factors of adhesive bonding strength in the actual production process? CRF plasma processor manufacturers will give you a look together.

CRF plasma processor manufacturers
After the adhesive and curing agent are determined to form BD series composite coating, the cold welding bonding strength is mainly related to the amount of powder, curing agent and toughening agent in the composition. In addition, the construction technology, matrix material, surface roughness and cleanliness also have a great influence on the cold welding bonding strength.


1. Influence of powder addition amount:
The proper addition of powdery filler can reduce shrinkage and eliminate internal defects, thus improving the bonding strength of the coating. However, the increase of the amount of powder added will reduce the adhesion of the adhesive material, thus reducing the bonding strength.


2. is the influence of the amount of curing agent added:
Insufficient amount of addition, incomplete curing; The coating brittleness increases with the addition of too large amount, and the residual curing agent reduces the coating performance. Therefore, in the development of cold welding composite materials, it is necessary to accurately calculate the number of adding curing agent, BD series composite coating sales, has been prepared according to the proportion of curing agent, the user can according to the product specification of the proportion of calculation and weighing to add, without doing tedious calculation.


3.affect other factors:
The addition of coupling agent can improve the bond strength, but the addition of defoaming agent, anti-aging agent and accelerator can only reduce the bond strength, so it must be strictly controlled. In addition, a certain roughness of the workpiece surface and the necessary cleanliness can improve the bond strength, on the contrary, the surface with oil or rust will make the bond strength seriously decreased, and even lead to failure.


In order to improve the bonding strength, the following points should be noted:
(1) The actual bonding area of the coarse surface is large, which is conducive to improving the bonding strength and machining the large tooth surface; BBD series adhesive curing agent adding proportion must be accurate, that is, must be strictly weighed in accordance with the proportion specified in the product manual, adding too much or too little will affect the adhesive strength.
(2) BD series adhesive A, B two components must be mixed very evenly, the color should be consistent.
(3) The surface of the matrix metal should be as clean as possible, and there should be no oil stains or rust by all means.
(4) The environmental temperature of the construction is above 10℃, and the environmental temperature below 5℃ is not suitable for construction.
In the process of construction, the bottom layer must be repeatedly scraped and coated to make the adhesive fully infiltrate the bottom surface. BD series of industrial adhesives at room temperature curing reaction is slow, can improve the curing temperature, when the conditions can be used 60~80 curing, coating generally 4~6h can be completely cured. The bonding strength between coating and substrate increases gradually after curing and continues to increase after putting into use.

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