Adhesive Joints and Nano-Enhanced Glues

There are thousands of "glues" out there. I'm surprised that you do not have some experience with adhesives during your education.

Without knowing more about the project, your capabilities and the end goal all anyone can do is tell you what their favorite adhesive is, because they "used it to glue the back door on a '57 Ford and it held".

I'd suggest that you use a material that you have experience with, although this nano clay should enhance the adhesive properties of any glue you add it to, yes?

The two part "Araldite 420 A/B" should be OK. You can experiment with different adhesives after you have made this one stronger.

Hi Lyn,

Just an addition to your first and fourth paragraphs, which are good. The question is valueable but you need knowledge about the glue and how to modify.

Why use 2-pack Araldite 420 made by someone else? Know the formulation of your products and start with Araldite 6010 and one of their hardener H-951 or others curing agents loke polyamids, amines, or adducted products. The result will be yours and you can modify, make more flexible or faster cure, by adding other products because you know compatibility of all ingredients.

Get serious, Gil.

Hi gil,

Perhaps it is just your superior intelligence, but I never understand what you are trying to communicate. Nothing you say ever makes sense to me.

I was serious.

language barriers...

Hi Lyn,

I respect without any critics your observation about my intelligence, not "superior".

I tell you and others that you have to know the product you use, it's composition and characteristics to succeed. When you buy a product (Araldite 420 or other) you need time and knowledge (including your "superior intelligence") how to modify or add something to obtain positive changes.

When you buy a GM car, how you make a Porsch? It's possible because you can see each part but when you have a glue, you cannot see all individual ingredients. This is the difficulties I am talking. Make your glue!

If my explanation doesn't please to you or cannot catch it, let me, Gil.

Hi,

what are "nano-clays" and how are these clays modified?

RHABE

Hi Rhabe,

Excellent question! It's real or a hoax again? We are together to wait for an answer. A logical answer, Gil.

Before we can be much help, it would be nice to know HOW you intend to disperse the nanoclay into the adhesive, and what the loading will be. The clay will likely produce a dilatent or sumilar mix. You might also try adding VSF (very short fibers) of Kevlar, etc that would seriously reinforce the mechanical bond. These fibers can be a hundredth to a tenth of a mm long, or longer. You might also look at primers to be sure you are getting a good surface contact with the adhesive.

Hi:

You do need conduct several tests to determine the effectiveness of modified adhesive. Being obvious that use of nano-clay changes the properties of the original formulation, there is no shortcut to determining what is going to satisfy your application needs. You must diligently test for proportion of mixture and bond strength if you must avoid catastrophe.

I will start with what I already know, or make choices based on materials to be bond, surface finishes, place of use (environment) and targeted bond strength.

Good luck

Hi Guest,

The subject can be interesting but we have nothing. We don't know what's the "nano-clay" is with specifically modified and chemically treated. To put "in the glue" is hard to rtealize by not knowing the glue. It's not the "Araldite 420 A/B" because it was in a previous works. The Ciba-Geigy 2-pack adhesive is recommended for structural use or it's an injection compound?

What we have to realize with the special adhesive added with nano-clay? Improve the tensil, compressive or sheer strength?

Wait for explanations, Gil.

Hi Guest,

I, and probably, we would like to get more informations about materials are glued together. Explain more precisely your sentence; "After the nano-processed adhesive will be applied in structural adhesive joints with adherents of high strength steel, carbon/epoxy composites and others." What's the reason to add nano-clays to an adhesive? What could be the function of the nano-clay on the performance of the adhesive? When we add ordinary clay we improve little and can decrease lots of characteristics of the adhesive but for sure we modify the viscosity, flow and leveling, diminish surface wetting and adhesive strength.

The subject can be very interesting with more explanation about the special nano-clay. Wait for more understanding, Gil.