Improved adhesion of nylon and rubberized materials

Improved adhesion of nylon and rubberized materials

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The nylon-coated rubber line is coated with a layer of rubber on the nylon wire to produce new characteristics. The nylon-coated rubber line is currently widely used. However, many companies will have a weak adhesion between nylon and rubber compound during production, so how can this change?

Starting from the formulation point of view, the compatibility between TPE and PA can be improved, thereby improving the adhesion of the two; the TPE injection molding processing temperature can be appropriately increased, and the TPE of the sticky nylon PA has a higher plasticizing temperature, so it is necessary to have Sufficient TPE processing temperature to achieve the temperature conditions necessary for TPE to bond well to nylon PA.

The pre-heat treatment of nylon parts before the second injection molding, in the TPE material encapsulation nylon processing process, if it is a common injection molding machine, the PA nylon parts can be heated in the oven first, then placed in the rubber mold, The TPE material is immediately injection molded to improve the adhesion of TPE to nylon.

In addition, you can start from the product design, punch holes in the inconspicuous position on the nylon parts, set the serrated groove at the edge of the soft plastic coating position, insert the injection molding or increase the contact surface of the TPE rubber compound with the nylon PA. It can enhance its bonding performance. The

From the above aspects, how can we effectively improve the phenomenon of poor adhesion and hope to help the majority of manufacturers?