In most cases, TPR soft rubber can be encapsulated by two-component injection molding machines and ordinary injection molding machines. The two-component injection molding machine is fast, and there is no need to remove the nylon adhesive parts, and the rotary die can be completed directly in one injection molding machine. If you use a normal injection molding machine, you need to inject nylon parts first, and then use another set of encapsulation molds to pre-embed the nylon parts in the encapsulation mold, and then inject TPR soft rubber on the surface of the nylon parts to complete the encapsulation. However, in the process of encapsulation, sometimes there will be a situation where the ABS adhesion of TPR soft rubber packaging is weak, so do you know that the ABS adhesion of TPR soft rubber packaging is weak, what should I do? Here's what you know:
Solution to the weak adhesion of ABS in TPR soft gel encapsulation:
1. To achieve the effect that TPR soft rubber and ABS cannot be torn, molding is a key point. TPR soft rubber encapsulates ABS, and TPR soft rubber is baked for 80 years before injection molding.
2. In the molding process, the processing temperature is very important. Therefore, we must ensure that the processing temperature allows the TPR material to be fully plasticized to achieve the required flow for injection molding.
3. The activity of ABS compatibilizer in TPR soft rubber formula increases, and the contact surface with ABS penetrates into each other in just tens of seconds. Under normal circumstances, we recommend that the temperature of TPR material coated with ABS material is between 180-230, and the specific temperature should be adjusted according to the machine.
To sum up, it is the solution to the weak adhesion of ABS in TPR soft gel packaging. If you encounter the problem of weak ABS adhesion of TPR soft rubber packaging, you can solve it according to the above methods.