Injection moulding plastic materials - moulding of raw materials - moulding of polypropylene and polyammide - moulding of ABS - moulding of acril-nitril-butadien-styren - moulding of polycarbonate - moulding of polystyrol

Injection moulding division

Inside I.P.A. S.p.A. there is the injection moulding division, an internal production department dealing with traditional injection, gas aided injection and over-injection. There are more than 30 injection machines with a tonnage that goes from a minimum of 50 tons up to a maximum of 1400 tons.

The production of IPA's internal injection moulding division is ment for big volumes.

Here are some of the main raw materials used by IPA's injection moulding division:

polypropylene (PP): it is obtained by propylene polyaddition and belongs to the polyolefine family. It can be added with calcium carbonate, talcum or elastomers, in order to change some mechanical features. It has a good dimenional stability. Polypropylene is easily recycleble.

polyammide (PA, nylon): the most common polyammides are PA 6, cheaper and easier to process, and PA 66, harder and abrasion resistant. Usually polyammide is added with glass fibres or glass spheres in order to improve mechanical features. Polyammide recycling normally consists in re-polymerizing pre-consumer waste.

acril-nitril-butadien-styren (ABS): it is an elastomer, butadienic rubber, and a resin, acril-nitril-styren. It has very good mechanical features, i.e. hardness and resilience. It is easily recycleble.

polycarbonate (PC): it belongs to polyester family. It is mainly used because of its transparency and flame-retardancy. Polycarbonate recycling is not so common.

polystyrol (PS): it is obtained by styren polyaddition. It is not impact resistant. It is easily recycleble.

polymetylmetacrilate (PMMA): it is an acrilic resin. Its main features are transparency, hardness and light fastness. Recycling of PMMA is not so common.