Injection molding of ABS Plastic and TPR Material
Hi,
I am working with a Chinese manufacturer to create a new product that uses ABS plastic and TPR material. The manufacturer injected the TPR material alongside the ABS plastic (thus avoiding the use of glue), but they informed me that for some reason that the TPR material and ABS plastic are not sticking well together. Does anyone have any recommendations on how to solve this issue? Any advice that I could send to the Chinese manufacturer would be greatly appreciated.
Cheers,
Greg
Injection molding of ABS Plastic and TPR Material
thanks so much Rick and PJ. I will definitely pass along your suggestions to the manufacturer.
Thanks again.
Cheers,
Greg
Re: Injection molding of ABS Plastic and TPR Material
Yes, Abs plastic is never sticking well to TPR because of their natural behavior. TPR plastic are used to produce the soft material like soft toys and plastic handle etc.
Re: Injection molding of ABS Plastic and TPR Material
Hi,
A TPR can be a variety of resins. In all bonding cases, you need to look at the chemistry of the two materials you need to bond. There is a list on one of the material suppliers website of the materials (not grades) that will bond with each other chemically. That is the first step. (If I find it, I will post the link.) Not all materials will bond with each other. And yes, as PJ says above you will need to provide the anchors.
Regards,
Suhas
Re: Injection molding of ABS Plastic and TPR Material
Hi
TPE / TPR plastic bag ABS, good adhesion, easy to tear and fall off. Not to say TPE / TPR and ABS sticky material itself, but may be other problems, such as TPE / TPR brands of choice, injection temperature selection, product requirements and design, among other factors related to
When 1.TPE / TPR grades. ABS plastic bag should be used in the appropriate performance of TPE / TPR grades, some grades of TPE / TPR and ABS can not be a good coating adhesion, so the choice of TPE / TPR rubber grades, it is best with TPE, TPR production business contacts, especially when compared to technical strength, large scale manufacturer.
2. The injection temperature. Injection temperature is low, TPE / TPR not sufficiently plasticize / melt, not in conjunction with the ABS surface to form a good welded layer, thereby to mention effective bonding. TPE / TPR plastic bag ABS ,, second injection molding temperature used, the reference range of 170 ~ 210 ℃. Specific injection temperature, it is recommended to TPE / TPR vendor funding.
3. Product Design. Adhesive coated surface of some products, TPE / TPR and ABS is small, this is more difficult to achieve good adhesion,
In short, the package of plastic ABS plastic, using TPE / TPR soft, its excellent adhesive coating, but need to select the appropriate injection molding grades and attention appropriate injection temperature. ABS plastic bag with the TPE / TPR, hardness range ShoreA20 ~ 90. scale.
Re: Injection molding of ABS Plastic and TPR Material
Did you try TPE or TPU?
KOM
brent