1-1. Non-halogen plastics as an alternative material to PVC.

Market growing attention to non-halogen flame retardants is connected with the ascending tendency to change a plastic material from PVC to an alternative plastic, for example to Polyolefin and Polypropylene.

The reasons why market will replace PVC with an alternative plastics are following,

(1).About  70% of PVC is chlorine and it may occur Dioxin by its incineration.

(2).DEPH, which is widely used as a plasticiser for PVC, is regarded as a environmental contaminants and substances which are harmful to human health. It is reported DEPH is an endocrine disrupting chemical (EDC).

(3).At the waste deposit, from PVC containing substances are leaching out and its causes a long term emission of soil.

(4).Although there is a argument that under severe incineration control of PVC, the generation of Dioxin can be prevented. But the residue after incineration is much more voluminously than before. It means, PVC shortens a lifetime of a waste deposit facility.

(5).To recycle as the thermal energy, PVC can be burned in the blase furnace and cement kiln, but before PVC put into its burning process, hydrogen chloride must be removed, because hydrogen chloride gas may give a damage to the brick at the furnace wall. This process costs very high and the user of this by-product must be found out.

1-2. The problem of halogenated additives.

To similar to the problem, what is mentioned before, some halogenated flame retardants (brominated flame retardants) has the same problem, which is harmful to human health and furthermore, brominated flame retardant is supposed to create a brominated Dioxin by the fire.

And by the fire some brominated flame retardants generate a toxic gas and a corrosion gas, which can cause to the electronic equipment a fatal result, and can oppose a rapid escape action by emergency.

1-3. Conventional flame retardant and its problematics.

 The commonly used flame retardants for plastics are brominated flame  retardants, Antimon dioxide und Phosphoric flame retardants. But these  flame retardants can generate also toxic and corrosive gas by the fire.

  As an alternative materials for PVC , non-halogen plastics, for example, Polypropylene and Polyethylene, have a weak point, that they can easy catch a fire to compare with a PVC, which is intrinsic hardly inflammable.

 To amend this materialistic behavior, as non-halogenated flame retardant, magnesium hydroxide comes to a place. Magnesium Hydroxide is a environmentally friendly and according to some official documentations no hazard to human health is reported.

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