The application range of non-woven fabrics is more and more extensive, because it has the characteristics of moisture-proof and breathable, and can be used in different industries. It is a fabric formed without spinning and manufacturing, forming a mesh structure, and then mechanically. production. Next, let's take a look at the following factors that affect the adhesion of non-woven fabrics:
1. Wetting: Wetting is a phenomenon in which the adhesive on the surface of the adherend is evenly distributed due to intermolecular forces. Generally speaking, the contact angle can be used to indicate the degree of wetting of the liquid to the solid surface, and it can be used as the three-phase interface point of droplet, solid and gas contact. It can be seen that the smaller the contact angle, the better the wettability of the non-woven fabric. Okay.
2. Diffusion of adhesive effect: Generally, the adhesive of non-woven fabrics also needs to have certain diffusion properties. Through diffusion, the adhesive molecules and some fragments can pass through the interface to form a diffusion interface area, which is fully wetted and diffused, and is conducive to the proximity of the adhesive molecules and the adhesive material. If the distance is less than 0.5 nm, molecular attraction or binding force that is favorable for binding will be generated.
3. Mechanical bonding: refers to the penetration of the adhesive into the void or surface of the adhesive material, and the adhesive material is bonded by the anchor hook or the cured adhesive coating.
The factors that affect the adhesion of non-woven fabrics mainly include the above. The non-woven fabrics produced by professional non-woven fabric manufacturers have certain guarantees in terms of adhesion. If you need to customize non-woven fabrics, please contact Weifang Shuntai Textile Co., Ltd., we will arrange personnel to connect with you as soon as possible.