87Views6Replies

Author Options:

Reinforce/modify polyester? Answered

I am currently working on a project that uses polycaprolactone because it has a low melting point and is easily moldable. The problem is once it has been molded and cooled it is sometimes too thin to be as firm as I need it to be and will bend when force is applied. Is there some way to mix the polycaprolactone with another substance to make it more firm without sacrificing much of its moldability or altering its melting point much? If not, is there another material with similar properties that I can substitute?

Discussions

0
None
iceng

4 years ago

This was first widely used on the Riprap now available as Shape Lock at Radio Shack. I have no idea if stiffer formulations are available. But if ribs, gussets and honeycombs don't help try imbedding a compatible stiffening material.

0
None
Vyger

4 years ago

Use old nylon stockings as a scaffolding to strengthen it. Not unlike fiberglass but less bulk. Nylon should be able to stand moderate heat. Look up its melting point.

0
None
Sserdna

4 years ago

It needs to be able to be heated and molded again. Something that raises the melting point too high or makes it unmoldable would be a problem.

0
None
steveastrouk

4 years ago

Try adding a filler, if you can get the system liquid enough, you could use micro-balloon or powdered limestone.

0
None
mpilchfamily

4 years ago

No there isn't a way to mix it to be stronger without altering the melting point.

What are you trying to make? Does it have to be melted or heated to apply? Maybe plaster and fiberglass will be a better option.

0
None
rickharrismpilchfamily

Answer 4 years ago

Alternatively you could perhaps change the shape to include some rails or ridges to strengthen the shape.