ShamrockPAPM
Materials
I am looking for an additive to put into my Nylon 6,6 and or Acetal that will improve the ability to resist scratching? What is the best addtive type to improve this?
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Anti Scratch additive for Nylon? 1
- Thread starter ShamrockPAPM
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MikeHalloran
Mechanical
You want it to resist scratching. ... with what?
Mike Halloran
Pembroke Pines, FL, USA
Mike Halloran
Pembroke Pines, FL, USA
- Thread starter
- #3
ShamrockPAPM
Materials
It will be tested using the ford 5 finger test.... I am looking at what my options are any help or guidance on where to look would be appreciated.
MikeHalloran
Mechanical
Google found some information for PP that may be helpful.
Mike Halloran
Pembroke Pines, FL, USA
Mike Halloran
Pembroke Pines, FL, USA
- Thread starter
- #6
ShamrockPAPM
Materials
I am looking for overall improvement, but I would say depth is most important as the product is white.
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1
- #7
Scratch is a tricky area, I've worked on that for years when I was at Electrolux.
Usually the customer doesn't care if there is a scratch or how deep it is, but whether they can see it and how bad it looks. In the end you are trying to pass whatever test the customer set, right or wrong.
Ways to increase scratch resistance:
1. Make the surface very hard, e.g. with SiOx or diamond-like coating. This is what people think of first but it doesn't work that well. You end up scratching right through a thin hard coating and they are expensive to apply e.g. by plasma.
2. Lower the surface friction so that the scratching tool slides across with less tearing and damage. This works well for the Ford test. Additives that help include ultrahigh molecular weight silicone from Dow Corning or Wacker.
Contact and ask about Dow Corning SiMB for nylon or contact Wacker and ask about Genioplast
3. Make the surface elastic. Wonder why car tires and plastic flooring wear so well? The tires are made of rubber and the PVC flooring is covered in polyurethane elastomer. This is very effective indeed as the material bounces back without damage.
Chris DeArmitt PhD FRSC CChem
Consultant to the plastics industry
Usually the customer doesn't care if there is a scratch or how deep it is, but whether they can see it and how bad it looks. In the end you are trying to pass whatever test the customer set, right or wrong.
Ways to increase scratch resistance:
1. Make the surface very hard, e.g. with SiOx or diamond-like coating. This is what people think of first but it doesn't work that well. You end up scratching right through a thin hard coating and they are expensive to apply e.g. by plasma.
2. Lower the surface friction so that the scratching tool slides across with less tearing and damage. This works well for the Ford test. Additives that help include ultrahigh molecular weight silicone from Dow Corning or Wacker.
Contact and ask about Dow Corning SiMB for nylon or contact Wacker and ask about Genioplast
3. Make the surface elastic. Wonder why car tires and plastic flooring wear so well? The tires are made of rubber and the PVC flooring is covered in polyurethane elastomer. This is very effective indeed as the material bounces back without damage.
Chris DeArmitt PhD FRSC CChem
Consultant to the plastics industry
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