Halogen Free - What kind and type of plastic resins contain Halogen?

Y

YAZIDM

#1
Our Customer asking us and i'm gonna get all my suppliers to declare their resin are free from halogen, but I think I should know first this clearly since this is my first time hearing of Halogen Free requirement on plastic injection molding industries.

Can anyone, who knows, list out what type plastic resin that have below elements
halogen fluorine, (F); chlorine, (Cl);bromine, (Br); iodine, (I); astatine, (At).


i need your advise and knowledge....please

 
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harry

Super Moderator
#2
Can anyone, who knows, list out what type plastic resin that have below elements
halogen fluorine, (F); chlorine, (Cl);bromine, (Br); iodine, (I); astatine, (At).
It normally come from additives such as Wikipedia reference-linkBrominated flame retardant rather than the resin itself.

Any resin/compound that complies to RoHS requirements should meet your requirement. Check with your suppliers - ask for a copy of lab report/analysis.
 

somashekar

Staff member
Super Moderator
#3
It normally come from additives such as Wikipedia reference-linkBrominated flame retardant rather than the resin itself.

Any resin/compound that complies to RoHS requirements should meet your requirement. Check with your suppliers - ask for a copy of lab report/analysis.
Traditionally, the hardware and electronics industry has preferred to use brominated flame retardants such as polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), hexabromocyclododecane (HBCDD) and tetrabromobisphenol-A (TBBA).

Add to what Harry mentiones .....
Halogen-free flame retardants
A number of halogen-free flame retardants are now becoming commercially available. Some of the main alternatives which are applicable to different polymer types used in the electronics industry are summarised here.

Halogen-free flame retardants applicable to different polymer types used in the electronics industry.

1) Halogen-free flame retardant :Aluminium trioxide
2) Applicable polymer types :Epoxy, ABS, HIPS, PC, EVA, XLPE

{ READ RESPECTIVELY 1) Halogen-free flame retardant 2) Applicable polymer types }

1) Magnesium hydroxide.
2) Epoxy, ABS, HIPS, PC, nylons, PVC, EVA, XLPE

1) Magnesium carbonate.
2) ABS, HIPS, PC, PVC, EVA, XLPE

1) Zinc borate.
2) Epoxy, nylons, PVC, EVA.

1) Zinc hydroxystannate.
2) PVC, EVA.

1) Zinc stannate.
2) Epoxy, nylons, PVC.

1) Red phosphorous.
2) Epoxy, phenolic, nylons.

1) Ammonium polyphosphate.
2) Epoxy

1) Phosphate esters.
2) Phenolic, ABS, HIPS, PC, PVC, EVA.

1) Melamine derivatives.
2) ABS, HIPS, PC, nylons

1) Reactive P-N.
2) Epoxy

You may be also interested to see .. http://www.halogenfree.org/
 
Last edited:

Ronen E

Problem Solver
Staff member
Moderator
#4
Our Customer asking us and i'm gonna get all my suppliers to declare their resin are free from halogen, but I think I should know first this clearly since this is my first time hearing of Halogen Free requirement on plastic injection molding industries.

Can anyone, who knows, list out what type plastic resin that have below elements
halogen fluorine, (F); chlorine, (Cl);bromine, (Br); iodine, (I); astatine, (At).


i need your advise and knowledge....please
Hi,

I wouldn't go too deeply just yet because the term "Halogen-free" is very wide and vague. Just as an example, all PVC's and PTFE's ("Teflon"s) contain Halogen atoms (Cl and F, respectively) in their polymer matrix. This does not mean that these atoms or their compounds are necessarily readily releasable to the environment. I don't mean to diminish the previous responses you got; all I'm saying is that you probably better ask your customer first what is their REAL concern and where does it come from. When you'll have a more focused concern, it'll be much easier to target it.

Cheers,
Ronen.
 
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