Re: Why don't glues work

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1 total messages Started by gozdz,antoni s Sat, 23 Jan 1993 21:57

#387

Author: gozdz,antoni s
Date: Sat, 23 Jan 1993 21:57

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In article <1993Jan23.015748.5837@athena.mit.edu> hkon@athena.mit.edu (Henry Kon) writes:
>I have tried to glue a piece of plastic on my kid's stroller.
>I tried epoxe, then "crazy" glue.
>They both failed.  This seems to happen a lot with plastic.  How
>do I glue plastic ?  Is there any general rules ? 
>--
>Henry Bruno Kon

You've just found a problem many industrial researchers
have been trying to solve for a long time. A very short
answer to your question is: there are no wonder glues
(or adhesives, as those familiar with the art prefer to
call them) that would bond any pair of materials.
Many popular plastics/polymers (such as polyethylene,
polypropylene, Teflon(tm)) just don't have any
functional groups that would react with a glue to form
a chemical bond. Their surface must be activated,
physically roughened, or, what's most effective, two
parts are just melted/sintered to form a joint.

Tony
tony2@cc.bellcore.com

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