30C at +/-5C is reasonable although, it will mainly depends on your design. If your design is likely to create crack you might want to go higher temperature or add polymer to the water. Then it also depends of the grade of the steel, the hardness and microstructure you want to get after treatment.
Thanks Demon3 for all your answers. PP is one of my materials, but i dont think i can tell the 2nd one. However it s got a Tg at about 130C. In our applications, we use devices between 20C and 97C (although it s only for a few seconds at 97). So it is still well below the Tg of one but well...
Oh and also, our material undergoes a corona treatment afterward to facilitate adhesion and printing. DO you think it can affect the bond strentgh of the coextrudate?
Cheers
Hi there, thanks for your quick reply.
I know few things that you say. The problem is that so far i have to deal with the material we have, which is i think already well engineered (on a bond strentgh point of view). The only problem is that i have a different application ( ie on temperature)...
Hi,
I have a question regarding the bonding strentgh between 2 polymeric materials in coextrusion. I would like to know how the bond strength varies with temperature? Does it decreases until Tg, Tm? or it just drop once reaching them? or combination of both?
Thanks
Manu